Held in 2024
Paper last updated:
Take this paper as a timed mock test. Review your answers after you submit.
Read the paper at your pace. Open an explanation when you need it.
In a certain code language,
'A + B' means 'A is the mother of B',
'A - B' means 'A is the brother of B',
'A × B' means 'A is the wife of B', and
'A ÷ B' means 'A is the father of B'.
How is T related to O if 'P + N - S ÷ O + M × T'?
Daughter's husband
Son
Son's son
Daughter's son
Correct answer
Daughter's husband
What should come in place of the question mark (?) in the given series?
25, 30, 40, 55, 75, ?
100
105
90
95
Correct answer
100
Select the set in which the numbers are related in the same way as are the numbers of the following sets.
(NOTE: Operations should be performed on the whole numbers, without breaking down the numbers into its constituent digits. E.g. 13 - Operations on 13 such as adding/subtracting/multiplying etc. to 13 can be performed. Breaking down 13 into 1 and 3 and then performing mathematical operations on 1 and 3 is not allowed.)
(12, 8, 28)
(34, 9, 52)
(62, 11, 84)
(49, 12, 71)
(15, 25, 60)
(54, 13, 70)
Correct answer
(62, 11, 84)
What should come in place of the question mark (?) in the given series?
14, 19, 29, 44, 64, ?
84
88
89
82
Correct answer
84
In a Zoological park, seven giraffes L, M, R, E, V, Z and Y have different heights. R is taller than E but shorter than Y. Z is taller than M but shorter than V. L is taller than R but shorter than V. Y is shorter than M but taller than E. M is shorter than Z. Which among the seven is the shortest?
R
E
L
Y
Correct answer
R
What should come in place of the question mark (?) in the given series based on the English alphabetical order?
RJG, NFC, JBY, FXU, ?
BTQ
BSQ
ATQ
ATP
Correct answer
BTQ
If A means +, B means -, C means × and D means ÷, then what will come in place of the question mark (?) in the following equation?
21 A 18 D 2 B 3 C 5 = ?
17
16
14
15
Correct answer
17
What should come in place of the question mark (?) in the given series based on the English alphabetical order?
HLP, TXB, FJN, RVZ, DHL, ?
PTY
QTY
PTX
QSX
Correct answer
PTY
L, M, N, O, P and Q are sitting around a circular table facing the centre (not necessarily in the same order). M is sitting to the immediate right of Q. L is sitting to the immediate left of O. Q is sitting to the immediate right of O. P is sitting to the immediate left of L. Who is sitting to the immediate right of M?
O
P
L
N
Correct answer
O
In a certain code language,
'A + B' means 'A is the mother of B',
'A = B' means 'A is the brother of B',
'A × B' means 'A is the wife of B' and
'A > B' means 'A is the father of B'.
How is P related to T if 'P + Q × R > S = T'?
Mother's mother
Mother's sister
Father's mother
Father's mother's sister
Correct answer
Mother's mother
Select the option figure that will replace the question mark (?) in the figure given below to complete the pattern.
Correct answer
What will come in place of the question mark (?) in the following equation if '+' and '-' are interchanged?
63 ÷ 9 - 14 × 11 + 28 = ?
129
133
138
135
Correct answer
129
Select the correct option that indicates the arrangement of the following words in a logical and meaningful order.
1, 4, 5, 3, 2
1, 3, 4, 2, 5
1, 5, 2, 4, 3
1, 2, 3, 5, 4
Correct answer
1, 4, 5, 3, 2
Select the correct mirror image of the given figure when the mirror is placed at OG as shown below.
Correct answer
Which of the following numbers will replace the question mark (?) in the given series?
30, 31, 36, 45, 62, ?
90
85
87
88
Correct answer
90
KSNJ is related to MUPL in a certain way based on the English alphabetical order. In the same way, NVQM is related to PXSO. To which of the following is EMHD related, following the same logic?
GOJF
GOFJ
OGJF
OGFJ
Correct answer
GOJF
TILE is related to VLNH in a certain way based on the English alphabetical order. In the same way, RAMP is related to TDOS. To which of the following is SORT related, following the same logic?
URTV
VRTW
URTW
VRTV
Correct answer
URTV
Select the option in which the numbers share the same relationship as that shared by the given pairs of numbers.
100 : 20
60 : 12
(NOTE: Operations should be performed on the whole number, without breaking down the numbers into its constituent digits. E.g. 13- Operations on 13 such as adding/subtracting/multiplying etc. to 13 can be performed. Breaking down 13 into 1 and 3 and then performing mathematical operations on 1 and 3 is NOT allowed.)
120 : 12
54 : 6
45 : 9
144 : 12
Correct answer
120 : 12
Select the set in which the numbers are related in the same way as are the numbers of the following sets.
(NOTE: Operations should be performed on the whole numbers, without breaking down the numbers into its constituent digits. E.g. 13 - Operations on 13 such as adding/subtracting/multiplying etc. to 13 can be performed. Breaking down 13 into 1 and 3 and then performing mathematical operations on 1 and 3 is not allowed.)
(120, 96, 54)
(108, 84, 42)
(124, 100, 58)
(128, 96, 60)
(116, 92, 62)
(92, 68, 40)
Correct answer
(124, 100, 58)
GKHL is related to IMJN in a certain way based on the English alphabetical order. In the same way, KOLP is related to MQNR. To which of the following is NROS related, following the same logic?
TPUQ
TPQU
PTQU
PTUQ
Correct answer
TPUQ
In a certain code language, 'BANISH' is coded as '9' and ‘AMORPHOUS' is coded as '12'. What is the code for 'AMNESTY' in the given language?
10
16
11
14
Correct answer
10
What should come in place of the question mark (?) in the given series based on the English alphabetical order?
HNL, JPN, LRP, NTR, ?
VPT
VTP
PTV
PVT
Correct answer
VPT
16 is related to 225 following a certain logic. Following the same logic, 7 is related to 99. To which of the following is 11 related following the same logic?
(NOTE: Operations should be performed on the whole numbers, without breaking down the numbers into their constituent digits. E.g. 13 - Operations on 13 such as adding/subtracting /multiplying to 13 can be performed. Breaking down 13 into 1 and 3 and then performing mathematical operations on 1 and 3 is not allowed.)
155
159
158
150
Correct answer
155
In a certain code language, 'TAKERS' is coded as '045%^1' and 'TALKER' is coded as '1*450%'. What is the code for 'L' in the given code language?
5
0
^
Correct answer
5
What will come in place of the question mark (?) in the following equation if '+' and '-' are interchanged and '×' and '÷' are interchanged?
20 × 5 - 13 + 3 ÷ 4 = ?
12
10
7
5
Correct answer
12
Read the given statements and conclusions carefully. You have to take the given statements to be true even if they seem to be at variance from commonly known facts. You have to decide which conclusion/s logically follow/s from the given statements.
Statements: Some horses are rocks. Some rocks are leaves. No rock is a tree.
Conclusions:
(I) No horse is a tree.
(II) At least some leaves are trees.
Both conclusions (I) and (II) follow.
Neither conclusion (I) nor (II) follows.
Only conclusion (II) follows.
Only conclusion (I) follows.
Correct answer
Both conclusions (I) and (II) follow.
In a certain code language, 'he was good' is coded as 'ik bu oy' and 'was she there' is coded as 'bu ha no'. How is 'was' coded in the given language?
ik
no
bu
ha
Correct answer
ik
What should come in place of the question mark (?) in the given series based on the English alphabetical order?
SVX, QTV, ORT, MPR, ?
NRP
KNP
KMP
LOR
Correct answer
NRP
Which two numbers should be interchanged to make the given equation correct?
(176 ÷ 4) + (22 × 8) − (2 × 20) = 70
(Note: Interchange should be done of entire number and not individual digits of a given number)
4 and 8
2 and 4
22 and 20
2 and 8
Correct answer
4 and 8
42 is related to 21 following a certain logic. Following the same logic, 26 is related to 13. To which of the following is 68 related following the same logic?
(NOTE: Operations should be performed on the whole numbers, without breaking down the numbers into its constituent digits. E.g. 13 - Operations on 13 such as adding /subtracting /multiplying etc. to 13 can be performed. Breaking down 13 into 1 and 3 and then performing mathematical operations on 1 and 3 is not allowed.)
30
32
34
36
Correct answer
30
L, M, N, O, P, Q, and R are sitting around a circular table, facing the centre. L sits second to the right of M. N sits third to the right of L. O sits second to the left of N. P is not an immediate neighbour of N. Q sits to the immediate right of O.
How many people are sitting between L and R when counted from the left of L?
One
Three
Zero
Two
Correct answer
One
Select the figure from the options that can replace the question mark (?) and complete the given pattern.
Correct answer
The position(s) of how many letters will remain unchanged if each of the letters in the word 'HANGOVER' is arranged in alphabetical order?
Zero
Four
Three
Two
Correct answer
Zero
Select the word-pair that best represents a similar relationship to the one expressed in the pair of words given below.
(The words must be considered as meaningful English words and must not be related to each other based on the number of letters/number of consonants/vowels in the word.)
Cockroach: Nymph
Bear : Foal
Sheep : Fawn
Horse : Chick
Swan : Cygnet
Correct answer
Bear : Foal
Read the given statements and conclusions carefully. Assuming that the information given in the statements is true, even if it appears to be at variance with commonly known facts, decide which of the given conclusion(s) logically follow(s) from the statements.
Statements: Some pens are red. All red are blue.
Conclusion 1: All pens are blue.
Conclusion 2: Some pens are not red.
Neither conclusion 1 nor 2 follows
Only conclusion 2 follows
Both conclusion 1 and 2 follow
Only conclusion 1 follows
Correct answer
Neither conclusion 1 nor 2 follows
Rahul walked 20 m towards the north. Then he turned right and walked 20 m. Then he turned right and walked 10 m. He then turned right and walked 10 m. In what direction is he headed?
South
East
North
West
Correct answer
South
HGCA is related to LKGE in a certain way based on the English alphabetical order. In the same way, BKOM is related to FOSQ. To which of the following is NSJD related, following the same logic?
PLNH
LPRY
RWNH
HSRD
Correct answer
PLNH
Select the option figure in which the given figure is embedded as its part (rotation is NOT allowed).
Correct answer
What should come in place of the question mark (?) in the given series based on the English alphabetical order?
MGA, HBV, CWQ, XRL, ?
SGM
SMG
GMS
GSM
Correct answer
SGM
Select the correct mirror image of the given figure when the mirror is placed at MN as shown below.
Correct answer
FJGK is related to HLIM in a certain way based on the English alphabetical order. In the same way, IMJN is related to KOLP. To which of the following is OSPT related, following the same logic?
QVRU
QURV
QVUR
QUVR
Correct answer
QVRU
Aishwarya starts from her office in north direction. She turns to her left then to her right and finally after walking some more, she turns to her left. In which direction is she facing now?
West
East
South
North
Correct answer
West
The position of how many letters will remain unchanged if each of the letters in the word CLOSURE is arranged in the English alphabetical order?
One
Two
Three
Four
Correct answer
One
Select the option in which the given figure is embedded (rotation is NOT allowed).
Correct answer
How many triangles are there in the given figure?
16
12
14
18
Correct answer
16
42 is related to 14 following a certain logic. Following the same logic, 33 is related to 11. To which of the following is 75 related following the same logic?
(NOTE: Operations should be performed on the whole numbers, without breaking down the numbers into its constituent digits. E.g. 13 - Operations on 13 such as adding/subtracting/multiplying etc. to 13 can be performed. Breaking down 13 into 1 and 3 and then performing mathematical operations on 1 and 3 is not allowed.)
15
25
35
45
Correct answer
15
Select the correct option that indicates the arrangement of the following words in a logical and meaningful order.
3, 1, 5, 2, 4
1, 5, 3, 2, 4
4, 1, 3, 2, 5
3, 5, 1, 4, 2
Correct answer
3, 1, 5, 2, 4
What should come in place of the question mark (?) in the given series based on the English alphabetical order?
STA, WXE, ABI, EFM, ?
JPS
JIS
IJQ
KKP
Correct answer
JPS
In a certain code language, 'HIDE' is coded as '3795' and 'DOWN' is coded as '4287'. What is the code for 'D' in the given code language?
2
4
7
9
Correct answer
2
MK 4 is related to OM 2 in a certain way. In the same way, QS 6 is related to SU 3. To which of the following is XU 8 related, following the same logic?
ZW 4
GX 5
ST 5
XE 7
Correct answer
ZW 4
On cold pressing groundnut, oils are released. This indicates the presence of ______.
Carbohydrates
Fats
Vitamins
Proteins
Correct answer
Carbohydrates
After realising the deadly effects of depleting the ozone layer, under which programme was the decision taken to ban the usage of CFC?
United Nations Development Programme
Natural State Environmental Programme
United Nations Environment Programme
Federal Energy Management Programme
Correct answer
United Nations Development Programme
The largest river system of Rajasthan is _______.
Luni
Tapi
Bhima
Kaveri
Correct answer
Luni
In which year was the Integrated Child Development Scheme (ICDS) launched in India?
1984
1975
1978
1982
Correct answer
1984
On which date did the cantonment of Meerut break out in military mutiny during the 1857 movement?
10 May 1857
30 May 1857
09 April 1857
30 March 1857
Correct answer
10 May 1857
When two nuclei fuse together forming one nucleus during cell fusion, it is known as:
synkaryon
eukaryon
heterokaryon
syncytium
Correct answer
synkaryon
The Arid soils are developed in the western part of which state from the following?
Bihar
Rajasthan
Telangana
Assam
Correct answer
Bihar
According to Census 2011 of India, which of the following groups of union territories has the highest urban population?
Chandigarh and Lakshadweep
Daman & Diu and Lakshadweep
Puducherry and Lakshadweep
Puducherry and Chandigarh
Correct answer
Chandigarh and Lakshadweep
Which word has been substituted for the words 'Unity of the Nation' in the 42nd Amendment Act of the Preamble of the Constitution of India?
Unity and honesty of the nation
Unity and equity of the nation
Unity and integrity of the nation
Unity and morality of the nation
Correct answer
Unity and honesty of the nation
What is the main content of the Fourth Schedule in the Constitution of India?
Directive Principles of State Policy
Allocation of seats in the Council of States
Provisions for State Legislature
Allocation of seats in the Lok Sabha
Correct answer
Directive Principles of State Policy
Which of the following states has launched the 'Mo Ghara' or 'My Home' scheme, with an aim to transform kutcha houses into pucca ones?
Jharkhand
Odisha
Chhattisgarh
West Bengal
Correct answer
Jharkhand
What does the CONCATENATE function do in Microsoft Excel?
Combines text from multiple cells into one cell
Splits text into separate cells
Converts text to uppercase
Finds the average of a range of cells
Correct answer
Combines text from multiple cells into one cell
In the 1830's, which Scottish man was Commissioned by the East India Company to prepare reports on Education and progress in the native schools of Bengal and Bihar?
Anthony Mc Donnel
William Adam
John Sargent
Joseph Hartog
Correct answer
Anthony Mc Donnel
Before starting a 5 day and 5 night excursion, Mr. Patel provided all his students with battery powered flash lights. He also gave them some extra batteries to use as spare. Then Mr. Patel asked them whether they know how the batteries will produce electricity and help them. What do you think the correct answer to his question is?
Electricity is produced by the chemicals stored in the battery
Electricity is produced by friction between the battery and the flash light
Electricity is saved in the battery from the factory that produces it
Battery extracts electricity from the environment and passes it to the flash light
Correct answer
Electricity is produced by the chemicals stored in the battery
A village is established in a region where land meets the ocean. What is this region called?
Sea Beach
Tropical Region
Coastal Region
Marshy Land
Correct answer
Sea Beach
When was the First Five-Year Plan of India launched?
1950
1951
1956
1961
Correct answer
1950
Which one of the following has the largest population in a food chain?
Decomposers
Producers
Primary consumers
Secondary consumers
Correct answer
Decomposers
In 2023, who among the following individuals served as the governor of Telangana?
Tamilisai Soundararajan
Kalraj Mishra
Ganesh Lal
Baby Rani Maurya
Correct answer
Tamilisai Soundararajan
Food digested in the stomach passes through the intestines so that the blood vessels can absorb essential nutrients for the functioning and growth of the body. What is this process known as?
Transmission
Assimilation
Transfusion
Integration
Correct answer
Transmission
The process by which molecules from a region of higher concentration move to a region of lower concentration is known as:
evaporation
boiling
diffusion
melting
Correct answer
evaporation
Based on which committee recommendations, RBI introduced a comprehensive regulatory framework for NBFC-MFIs?
Gadgil committee
Malegam committee
Kelkar committee
Rangarajan committee
Correct answer
Gadgil committee
In the context of a Microsoft Excel sheet, what does the term 'workbook' mean?
A single sheet within a file
The entire Microsoft Excel file
A formula used in calculations
A chart or graph
Correct answer
A single sheet within a file
Which chemical compound is responsible for the spicy taste in chilli peppers?
Capsaicin
Caffeine
Ethanol
Tannin
Correct answer
Capsaicin
Which of the following is an example of formation of metamorphic rocks?
Formation of Sandstone
Formation of Limestone
Formation of Slate
Formation of Chalk
Correct answer
Formation of Sandstone
Which species of sponges is commonly called glass sponge due to the presence of silica spicules?
Calcarea
Planaria
Euplectella
Spongilla
Correct answer
Calcarea
Kala Ramnath is associated with which of the following gharanas?
Bhendibazaar gharana
Mewati gharana
Agra gharana
Indore gharana
Correct answer
Bhendibazaar gharana
Who composed the music for the film Kashmir ki Kali?
Naushad
Hemant Kumar
Salil Chowdhury
OP Nayyar
Correct answer
Naushad
Which of the following is NOT included while estimating National Income?
2 and 3
1, 2, and 3
1 and 2
3 Only
Correct answer
2 and 3
Who marked the historic moment by unveiling the 'Yashobhoomi' convention centre in Delhi in September 2023?
Arvind Kejriwal
Dharmendra Pradhan
Narendra Modi
Droupadi Murmu
Correct answer
Arvind Kejriwal
Who along with Barry Marshall, was awarded the Nobel Prize in Physiology or Medicine in 2005 for discovering that stomach ulcer is an infectious disease caused by bacteria?
Jean Paul Vuillemin
Robert Koch
Gabriel Pouchet
Robin Warren
Correct answer
Jean Paul Vuillemin
In which of the following groups of the periodic table is the metallic element 'silver' found?
Group 15
Group 7
Group 11
Group 3
Correct answer
Group 15
Who is the ultimate interpreter of the Constitution?
Speaker
Supreme Court
District Courts
President
Correct answer
Speaker
What was the main objection against the Directive Principles of State Policy in the Constituent Assembly?
They were considered as novel features
They were non justiciable in character
They were an instrument of instructions
The state was responsible for these policies
Correct answer
They were considered as novel features
India defeated West Indies in which of the following World Cup finals?
1983 England
2007 West Indies
2019 England
2003 South Africa
Correct answer
1983 England
Which Minister led the Indian delegation in the meeting of the digital and technology ministers of G7 countries held in Japan on 29 and 30 April 2023?
Ashwini Vaishnaw
Ajay Bhatt
Bhupendra Yadav
Sarbananda Sonowal
Correct answer
Ashwini Vaishnaw
Who among the following scientists discovered free living cells in pond water for the first time?
Robert Hooke
Robert Brown
Anton Van Leeuwenhoek
Franz Bauer
Correct answer
Robert Hooke
Which of the following sports events was NEVER hosted by India?
Commonwealth Games
Olympics
ICC Men World Cup Cricket
Asian Games
Correct answer
Commonwealth Games
The Registration of Births and Deaths (Amendment) Bill was introduced in the Lok Sabha by which ministry on 26 July 2023?
Ministry of Home Affairs
Ministry of Women and Child Development
Ministry of Health and Family Welfare
Ministry of Information and Broadcasting
Correct answer
Ministry of Home Affairs
According to Census of India 2011, which state recorded negative population growth rate?
Manipur
Nagaland
Sikkim
Kerala
Correct answer
Manipur
A low pitched but louder sound has _______.
lower frequency and higher amplitude
higher frequency and lower amplitude
lower frequency and lower amplitude
higher frequency and higher amplitude
Correct answer
lower frequency and higher amplitude
The Pala rulers achieved their domination in which province of India?
Assam
Bengal
Orissa
Kashmir
Correct answer
Assam
Which Nationalist Democratic Progressive Party (NDPP) leader was sworn in as the fifth Chief Minister of Nagaland in March 2023?
Wanweiroy Kharlukhi
Chingwang Konyak
Tokheho Yepthomi
Neiphiu Rio
Correct answer
Wanweiroy Kharlukhi
Who inspired Indians by raising the slogan 'Freedom is my birthright and I shall have it!'?
Swami Vivekananda
Sachindra Nath Sanyal
Bhagat Singh
Bal Gangadhar Tilak
Correct answer
Swami Vivekananda
Pascal is the SI unit of _______, which is defined as a force of 1 N applied uniformly over an area of 1 m2.
pressure
mass density
power
energy
Correct answer
pressure
The animals or plants which can inbreed successfully must belong to the same _______.
species
planet
locality
country
Correct answer
species
What is the height of the Kanchenjunga peak?
8859 m
8958 m
8598 m
8527 m
Correct answer
8859 m
In which Union Territory is the 'slash and burn' agriculture known as 'Dipa'?
Jammu and Kashmir
Ladakh
Dadra & Nagar Haveli and Daman & Diu
Andaman and Nicobar Islands
Correct answer
Jammu and Kashmir
According to Article 58 of the Constitution of India, no person shall be eligible for election as President unless he is a citizen of India, has completed the age of _______ and is qualified for election as a member of the House of the People.
27 years
30 years
35 years
40 years
Correct answer
27 years
"Meri LiFE" (My life) app was launched in May 2023 by union minister Shri Bhupender Yadav. Which ministry does he belong?
Ministry of Earth Sciences
Ministry of Environment, Forest and Climate Change
Ministry of Agriculture and Farmers Welfare
Ministry of Health and Family Welfare
Correct answer
Ministry of Earth Sciences
In nominal pi method, the line to neutral capacitance is:
divided into two halves
assumed lumped at the sending end
assumed lumped at the receiving end
assumed lumped at the midpoint
Correct answer
divided into two halves
In an electrodynamic instrument, what happens to the torque when the current flowing through the coil is decreased?
The torque becomes zero.
The torque increases.
The torque remains constant.
The torque decreases.
Correct answer
The torque becomes zero.
Which of the following statements are correct about DC welding machines-MG Set?
I) It uses non-coated type electrodes; hence the cost of electrode is cheap.
II) It uses coated type electrodes; hence the electrode is expensive.
III) It is best suited for welding thinner sheets (6 mm).
IV) The initial cost of the machine is less compared to AC welding machine.
II and III
I and III
II and IV
I and IV
Correct answer
II and III
As per the general principles of estimating, whenever practicable, it is advantageous to execute the work only after ______.
payments of bills are made
tenders are invited
tenders are evaluated
purchase orders are placed
Correct answer
payments of bills are made
Which of the following is a pure resistive device?
Heater
Motor
Generator
Transformer
Correct answer
Heater
What is the reactive power of a 3-phase, delta-connected system with line voltage of 100 V and line current of 40 A if the phase difference between the voltage and the current is 36.87°?
4.155 KVAR
6.155 KVAR
2.155 KVAR
8.155 KVAR
Correct answer
4.155 KVAR
A capacitor of capacitive reactance 5 Ω is connected across a 220V, 50Hz supply. Calculate the maximum current drawn by the capacitor.
\(\rm 44\sqrt2, A\)
40 A
44 A
100 A
Correct answer
\(\rm 44\sqrt2, A\)
Which of the following statements is/are accurate regarding working principle of a reluctance start motor?
Only 1 is true
Both 1 and 2 are true
Both 1 and 2 are not true
Only 2 is true
Correct answer
Only 1 is true
Which of the following photometric quantities measures the total amount of visible light emitted by a source in all directions?
Luminance
Illuminance
Luminous intensity
Luminous flux
Correct answer
Luminance
In electrical installation and costing, which of the following is NOT a scope of national electrical code?
General safety procedure
Recommendations concerning safety
Distinguishing of fundamental components
Standard good practices
Correct answer
General safety procedure
The Fermi level position ________ in the energy band diagram of a p-n junction at equilibrium states.
does not exist
is constant for electrons to cross the junction
is uphill for electrons to cross the junction
is downhill for electrons to cross the junction
Correct answer
does not exist
Slip is 1 when rotor is ______.
rotating at a speed lower than synchronous speed
rotating with synchronous speed
stationary
rotating at a speed higher than synchronous speed
Correct answer
rotating at a speed lower than synchronous speed
An ideal BJT acts as an open switch when:
VCE = VBC and IC = 10 mA
VCE = VCC and IC = 0
VBE = VCC and lB = 50 μA
VCE = 0 and IC = 10 mA
Correct answer
VCE = VBC and IC = 10 mA
Which of the following is correct with reference to step up single-phase transformer?
Turn ratio = Transformation ratio
Turn ratio ≠ Transformation ratio
Turn ratio > Transformation ratio
Turn ratio < Transformation ratio
Correct answer
Turn ratio = Transformation ratio
In an induction motor if the rotor is locked, then the rotor frequency of the induction motor will be:
zero
equal to supply frequency
less than supply frequency
more than supply frequency
Correct answer
zero
I, R, XL, VR and cosϕR represent voltage regulation, line current, line resistance, line reactance, receiving end voltage and load power factor of transmission line, respectively. Also, receiving end voltage is more than the sending end voltage. Identify the correct expression for the leading load power factor.
IR COSϕR = IXLCOSϕR
IR COSϕR > IXLCOSϕR
IR COSϕR < IXLCOSϕR
IR COSϕR >> IXLCOSϕR
Correct answer
IR COSϕR = IXLCOSϕR
In an unbiased PNP transistor, the barrier voltages are ______ on the base and ______ on the emitter and collector.
positive; negative
positive; positive
negative; positive
negative; negative
Correct answer
positive; negative
The wattmeter method is used to measure power in a three-phase load. The wattmeter readings are 200 W and -35 W. Find the respective values of active power and reactive power.
165 W and \(235\sqrt3\) VAR
235 W and \(50\sqrt3\) VAR
235 W and \(\frac{150}{\sqrt3}\) VAR
165 W and \(\frac{50}{\sqrt3}\) VAR
Correct answer
165 W and \(235\sqrt3\) VAR
The efficiency of a transmission line is _________.
increased with decrease in load p.f
increased with increase in load p.f.
decreased with increase in load p.f.
independent of load p.f.
Correct answer
increased with decrease in load p.f
In the shaded-pole induction motor, the shading coil fitted on the _________ is called _________.
auxiliary pole; shading pole
auxiliary pole; non-shading pole
main pole; shading pole
main pole; non-shading pole
Correct answer
auxiliary pole; shading pole
Which of the following is NOT broadly classified as a part of agrochemicals?
Insecticides
Herbicides
Fungicides
Digesicides
Correct answer
Insecticides
In radial distribution system, the consumers are dependent on ______ and ______.
multiple feeder, multiple distributor
single feeder, single distributor
single feeder, multiple distributor
multiple feeder, single distributor
Correct answer
multiple feeder, multiple distributor
The ratio of the mean spherical candle power to the mean horizontal candle power is called _______.
utilization factor
lamp efficiency
reduction factor
beam factor
Correct answer
utilization factor
Which of the following effects is predominant when a dielectric material is polarised?
It causes current to flow in the material.
It makes charged particles free to move.
Charged particles re-orientate themselves in the out phase with the electric field.
It makes charged particles free to move and causes current to flow in the material.
Correct answer
It causes current to flow in the material.
The plant capacity factor is related to ________.
plant impedance
plant operating frequency
plant resistance
plant reactance
Correct answer
plant impedance
In an inductor, if the coil is wound on an insulating bobbin, without any magnetic material as core, then the inductor is called ______.
variable inductor
ferrite-cored inductor
air-cored inductor
iron-cored inductor
Correct answer
variable inductor
Which crop is primarily used to produce biomass alcohol fuel or ethanol in India?
Rice
Corn
Wheat
Sugarcane
Correct answer
Rice
In ring distribution scheme, ______ of a ______ transformer form a loop.
primaries, power
primaries, distribution
secondaries, power
secondaries, distribution
Correct answer
primaries, power
Which of the following statements are true regarding the DC load line?
a) It is a straight line drawn between IC and VCE.
b) The quiescent point lies on the load line.
c) In the DC load line, when the collector emitter voltage VCE = 0, the collector current is maximum.
Only a and c
Only a and b
All of a, b and c
Only b and c
Correct answer
Only a and c
With the increase in voltage level of the distribution network, the weight and corresponding cost of the conductor material will be ______ and ______, respectively, for the same voltage drop.
increased; increased
decreased; decreased
increased; decreased
decreased; increased
Correct answer
increased; increased
A certain length of wire has its resistance measured as 20 Ω at 20°C and 40 Ω at 60°C. Calculate the temperature coefficient.
\(\left(\frac{1}{30}\right),\)/°C
\(\left(\frac{1}{60}\right),\)/°C
30°C
\(\left(\frac{1}{40}\right),\)/°C
Correct answer
\(\left(\frac{1}{30}\right),\)/°C
A signal applied to a CRO has a rising time of 0.5 μs. Its bandwidth is:
0.7 MHz
0.05 MHz
0.07 MHz
0.2 MHz
Correct answer
0.7 MHz
A 400 V, 3-phase synchronous motor has armature current of 150 A. It has synchronous resistance and reactance of 0.4 Ω and 4 Ω per phase, respectively. If the power developed is 130 kW and the iron and friction losses are 1 kW, then the efficiency of the motor will be ______.
91.6%
75%
81.6%
60%
Correct answer
91.6%
What is the armature-circuit-resistance speed control method for DC motor?
Variation of resistance in the field circuit
Variation of field flux
Variation of armature terminal voltage
Variation of resistance in the armature circuit
Correct answer
Variation of resistance in the field circuit
What type of boilers are suitable for low-maintenance cost, small size and low-pressure plants?
High-pressure boilers
Supercritical boilers
Water tube boilers
Fire tube boilers
Correct answer
High-pressure boilers
The deflecting torque in an electrostatic instrument can be calibrated by _______.
adjusting the potential difference between the plates
adjusting the damping
adjusting the spring constant
adjusting the frequency
Correct answer
adjusting the potential difference between the plates
A Thevenin equivalent source comprises of which of the following elements?
A single current source in parallel with a resistance
A single current source in series with a resistance
A single voltage source in series with a resistance
A single voltage source in parallel with a resistance
Correct answer
A single current source in parallel with a resistance
A three-phase star-connected load draws 3600 VAR when the line voltage is 200 V and the line current is 10√3 A. The power factor is ______.
zero
0.8
1
0.6
Correct answer
zero
The current reverser in the earth tester converts ______.
AC to AC
AC to DC
DC to DC
DC to AC
Correct answer
AC to AC
A conductor of length 5 m moves at an angle 30° to the direction of the magnetic field of flux density 1.4 wb/m2. If the velocity of the conductor is 40 m/s, then calculate the EMF induced in it.
140 volts
0 volt
1400 volts
100 volts
Correct answer
140 volts
A 6-pole, 250 V wave connected shunt motor running at 955 rpm has 1200 armature conductors and useful flux/pole of 10m Wb. The armature and field resistance are 0.5 Ω and 250 Ω, respectively. If the motor draws 20 A from the supply mains, then the value of torque developed by the motor is ______.
65.8 N-m
45.6 N-m
57.9 N-m
62.3 N-m
Correct answer
65.8 N-m
In electromagnetism, the magnetic field set up by a steady current density is described by _______.
Ohm's law
Laplace's law
Faraday's law
Lenz's law
Correct answer
Ohm's law
What is the primary purpose of a back-to-back power electronic converter (PEC) in type-C doubly-fed induction generator wind power plants?
To match stator and rotor frequencies
To control reactive power production
To regulate wind turbine speed
To convert mechanical power to electrical power
Correct answer
To match stator and rotor frequencies
For a D-MOSFET when biased at VGS = 0 V having IDSS =30 mA and VGS (off) = -6V, the drain current is equal to ______.
0 mA
infinite
20 mA
30 mA
Correct answer
0 mA
Cold reserve is the reserve capacity of the plant in ______ but NOT in ______.
operation, service
service, operation
service, service
operation, operation
Correct answer
operation, service
In the context of electromagnetism, according to Fleming's left-hand rule, the thumb indicates the _______.
direction of the magnetic field
direction of the current
length of the conductor
direction of the motion of the conductor
Correct answer
direction of the magnetic field
In estimation and costing, the estimator must understand production cost, including labour and material cost of products, as well as discounts on purchases in order to:
retain a list
prepare schedules
work out profit
gain knowledge
Correct answer
retain a list
Calculate the reading that will be given by a hot-wire voltmeter when it is connected across the terminals of a generator whose voltage is given by V(t) = (2 Sin wt + 3 Sin 3 wt + 5 Sin 5 wt) Volt.
0 volt
\(\sqrt{38}\) volts
10 volts
\(\sqrt{19}\) volts
Correct answer
0 volt
With respect to AC fundamentals of an electrical signal, the ratio of the area under the curve to the base is called ______.
RMS value
peak value
effective value
average value
Correct answer
RMS value
Ten capacitors, each of capacitance 20 μF, are first connected in series and then in parallel. The ratio of the equivalent capacitance in series to the equivalent capacitance in parallel is:
1/100
1/250
1/400
1/200
Correct answer
1/100
What is Cold Reserve Capacity in a power system?
The power generating capacity that is not currently in use but can be brought only when needed.
The power generating capacity that is readily available and online, ready to be dispatched.
The power generating capacity that is permanently shut down.
The power generating capacity that is unavailable due to maintenance or other reasons.
Correct answer
The power generating capacity that is not currently in use but can be brought only when needed.
In the context of magnetic circuits, the value of the leakage coefficient for electrical machines is usually about ______.
1.15 to 1.25
1.5 to 1.75
0.5 to 1
1.25 to 1.5
Correct answer
1.15 to 1.25
In case of commercial installations, it is advisable to use light sources rendering high colour for installations so as to retain customer attention. This light should be as bright as its surroundings in the range of _______.
2 times
20 times
5 times
10 times
Correct answer
2 times
Eight capacitors of the same value are connected in series. Their equivalent capacitance is 200 μF, the capacitance of each capacitor is _______.
16 × 10-4 F
160 μF
16 μF
25 μF
Correct answer
16 × 10-4 F
Which is the formula for transmission line efficiency?
Efficiency = \(\rm \frac{-received ,power}{transmitted ,power}\times 100\)
Efficiency = received power - transmitted power × 100
Efficiency = received power + transmitted power × 100
Efficiency = \(\rm \frac{received ,power}{transmitted ,power}\times 100\)
Correct answer
Efficiency = \(\rm \frac{-received ,power}{transmitted ,power}\times 100\)
An external resistance is added in the motor circuit during starting condition. The main purpose of this is to _______.
increase the starting current
increase the main flux
reduce the starting current
reduce the main flux
Correct answer
increase the starting current
At steady-state characteristics of a DC series motor, which of the following statements are correct?
I) The speed-torque relationship of a DC series motor is non-linear.
II) Both the armature current and the field current of a DC series motor decrease with increasing load torque.
III) The efficiency of a DC series motor is generally higher compared to DC shunt motor.
IV) The efficiency of a DC series motor is generally lower compared to DC shunt motor.
Statements I, II and IV are correct
Only statements I and IV are correct
Statements I, II and III correct
Only statements I and III are correct
Correct answer
Statements I, II and IV are correct
If R1 = 1 Ω; R2 = 2 Ω; R3 = 3 Ω; R2 and R3 are connected in parallel and the combination is in series with R1, then the total resistance will be _______.
1.2 Ω
1.5 Ω
2.8 Ω
2.2 Ω
Correct answer
1.2 Ω
At light load power factor of induction motors is _______.
0
1
0.8 to 0.9
0.2 to 0.4
Correct answer
0
Which of the following statements correctly explains the relation between the maximum demand and the connected load during a practical scenario in a power system?
The maximum demand will always be less than the connected load.
The maximum demand will always be greater than the connected load.
The maximum demand and the connected load do not exhibit any relation with each other.
The maximum demand will always be equal to the connected load.
Correct answer
The maximum demand will always be less than the connected load.
Which of the following is a criterion used for selecting the ratio of the minimum fault current to the maximum load current in over-current protection of a transmission line?
To prevent the possibility of maloperation under normal operating conditions
To reduce the maximum load current on the transmission line
To decrease the sensitivity of the protection system to faults
To increase the possibility of maloperation under normal operating conditions
Correct answer
To prevent the possibility of maloperation under normal operating conditions
A voltage source of V(t) = (10t3 - 5t + 10) Volt is applied across a 10F capacitor, the current through the capacitor at t = 2 sec is ________.
1000 A
1100 A
1160 A
1150 A
Correct answer
1000 A
If the station has a thermal efficiency of 30% and electrical efficiency of 95%, find the overall efficiency of the station.
26.5%
27.5%
28.5%
29.5%
Correct answer
26.5%
Which of the following is/are true regarding the significance of the 'barrier' in the rotor of a synchronous reluctance motor?
Only 2
Both 2 and 4
Both 1 and 3
Only 1 and 4
Correct answer
Only 2
An uneven air gap in the stator and the rotor of a squirrel cage induction motor will lead to ______ during operation.
increased vibrations
increased speed
increased torque
increased current
Correct answer
increased vibrations
A balanced, delta-connected load has an impedance of 3∠30° Ω/phase. What will be the impedance of an equivalent star-connected load?
2∠60° Ω/phase
4∠30° Ω/phase
3∠90° Ω/phase
1∠30° Ω/phase
Correct answer
2∠60° Ω/phase
In electromagnetism, the work done on a unit n-pole in moving once around any complete path will be equal to the product of the current and the number of turns enclosed by that path is stated by _______.
Coulomb's law
Work's law
Lenz's law
Laplace's law
Correct answer
Coulomb's law
Which of the following systems is NOT a part of the operating mechanism in a single-phase energy meter?
Driving system
Registering system
Braking system
Energy system
Correct answer
Driving system
Which of the following lamps is NOT a discharge lamp?
Mercury vapour Lamp
Neon lamp
Sodium vapour lamp
Incandescent lamp
Correct answer
Mercury vapour Lamp
What is the correct order of the following operations, performed for conducting the estimation?
a) Wiring layout
b) Calculation of the total number of connections
c) Selection of the main switch board
b, c, a
a, b, c
a, c, b
c, a, b
Correct answer
b, c, a
In the context of electronic components, if a number of resistances are connected and the reciprocal of the sum of individual resistances is equal to the sum of reciprocals of individual resistances, then the type of connection is called _______.
grouping circuit
series circuit
series-parallel circuit
parallel circuit
Correct answer
grouping circuit
How much energy in "kilowatt hours" is consumed in operating ten 100-watt bulbs for 20 hours per day in a month (30 days)?
10000 kilowatt-hours
5000 kilowatt-hours
600000 kilowatt-hours
600 kilowatt-hours
Correct answer
10000 kilowatt-hours
The sum of instantaneous powers in the three phases in a three-phase system:
is zero
twice the line frequency
remains constant
thrice the line frequency
Correct answer
is zero
Which of the following statements are correct?
(a) Lenz's law is based on the conservation of charge.
(b) Lenz's law gives the direction of induced current.
(c) Lenz's law is based on the conservation of energy.
Both (a) and (c)
Both (a) and (b)
(a), (b) and (c)
Both (b) and (c)
Correct answer
Both (a) and (c)
What happens to the reading of a wattmeter when the power factor of a circuit is changed from unity power factor to leading power factor?
The wattmeter reading remains unchanged
The wattmeter reading decreases
The wattmeter reading increases
The wattmeter cannot measure the leading power factor
Correct answer
The wattmeter reading remains unchanged
Which of the following is correct for a step down single-phase transformer?
Input volt ampere < output volt ampere
Input volt ampere ≠ output volt ampere
Input volt ampere = output volt ampere
Input volt ampere > output volt ampere
Correct answer
Input volt ampere < output volt ampere
In resistors, if the temperature is increased, then the resistance of alloys will ______.
decrease
increase
remain the same
become zero
Correct answer
decrease
What is the correction factor of the wattmeter at a lagging power factor?
(Where, φ is the phase angle between the voltage applied to the pressure coil and the current in the current coil and β is the angle between the voltage applied to the pressure coil and the current in the pressure coil.)
\(\rm \frac{cos\Phi}{cos \beta ,cos (\Phi - \beta)}\)
\(\rm \frac{cos\Phi}{cos \beta ,sin (\Phi + \beta)}\)
\(\rm \frac{cos\Phi}{cos \beta ,sin (\Phi - \beta)}\)
\(\rm \frac{cos\Phi}{cos \beta ,cos (\Phi + \beta)}\)
Correct answer
\(\rm \frac{cos\Phi}{cos \beta ,cos (\Phi - \beta)}\)
A series R-L-C circuit having R = 5 Ω, L = 400 H and C = 4F is fed from a 400 ∠0° volt supply. Then the voltage across the capacitor at resonance will be _______.
800 V
1000 V
400 V
200 V
Correct answer
800 V
The maximum efficiency in the transmission of bulk AC power will be achieved when the power factor of the load is:
unity
considerably less than unity
slightly less than unity leading
slightly less than unity lagging
Correct answer
unity
Which of the following statements is true about the voltage control of DC motors?
The application of this method is restricted to separately excited DC motors.
The application of this method is restricted to self-excited DC motors.
The terminal voltage is kept constant and the field current is varied so as to obtain speed control.
The field current is kept constant and the terminal voltage is varied to obtain speed control.
Correct answer
The application of this method is restricted to separately excited DC motors.
The Variation in the effective width of a base in a Bipolar Junction Transistor is due to a variation in the applied ______.
emitter to collector voltage
base to collector voltage
collector current
emitter current
Correct answer
emitter to collector voltage
Which of the following statements are correct about the errors in PMMC instruments?
I. The swamping resistance is included in series with the moving coil to reduce errors.
II. The swamping resistance is included in parallel with the moving coil to reduce errors.
III. Errors are caused by weakening of the permanent magnet due to aging.
IV. Errors are caused by weakening of the spring due to aging and temperature.
Only II, III and IV
Only I, III and IV
Only III and IV
Only I and III
Correct answer
Only II, III and IV
Which of the following are the properties of a good heating element?
I) It should have low resistivity.
II) It should have high melting point.
III) It should have low temperature coefficient of resistance.
IV) It should have high specific heat capacity.
II, III and IV
I, II and IV
Only II and III
I, II and III
Correct answer
II, III and IV
Which of the following statements is NOT true about DC signal?
Pure Direct Current always has a constant value.
A DC voltage has both positive and negative values with change in time.
A DC voltage is always negative or always positive.
Cell, batteries and regulated power supplies provide a steady DC that is ideal for an electronic circuit.
Correct answer
Pure Direct Current always has a constant value.
Mutual inductance between two magnetically coupled coils does NOT depend on which of the following?
Number of turns of the coils
Permeability of the core material
Temperature of the coil
Cross sectional area of their common core
Correct answer
Number of turns of the coils
In a transistor of common base connection, the ratio of change in the output current to change in the input current at a constant collector-base voltage is called _______.
output resistance factor
current amplification factor
base current amplification factor
input resistance factor
Correct answer
output resistance factor
Which of the following statements is FALSE in the context of the characteristics of synchronous motors?
They have low operating efficiency.
They have constant speed operation.
Synchronous motors have high power factor correction.
They are made in large sizes.
Correct answer
They have low operating efficiency.
A 200-V, DC motor has an armature resistance of 0.5 Ω. It is drawing an armature current of 20 A driving a certain load. Calculate the induced EMF in the motor under this condition.
190 V
199.3 V
203.7 V
175.8 V
Correct answer
190 V
If the power factor of 500 KVA, 21 KW, 3-phase star connected alternator is increased from its initial value, then the efficiency of the synchronous generator will _______.
increase
decrease
become zero
remain constant
Correct answer
increase
Total Reactive Power drawn from a three-phase balanced load where line voltage = VL, Line current = IL, Phase voltage = VP and Phase current = lP is given by:
\(\rm \sqrt3 ,V_LI_Lcos\phi \)
\(\rm \sqrt3 ,V_LI_Lsin\phi\)
3 VPIP cos Φ
\(\rm \sqrt3 ,V_PI_P sin\phi\)
Correct answer
\(\rm \sqrt3 ,V_LI_Lcos\phi \)
The torque developed by a 3-phase induction motor least depends on which the following options?
rotor EMF
rotor current
shaft diameter
rotor power factor
Correct answer
rotor EMF
A DC source of EMF E volts and internal resistance R ohms is connected to a variable load and it is adjusted such that the load absorbs maximum power from the source. The maximum power delivered from the source to the load is:
\(\rm \frac{E^2}{2R}\)
\(\rm \frac{E^2}{R}\)
\(\rm \frac{2E^2}{R}\)
\(\rm \frac{E^2}{4R}\)
Correct answer
\(\rm \frac{E^2}{2R}\)
The hysteresis torque during the working of hysteresis motor depends on which factor?
Rotor flux only
Stator flux only
Stator flux, rotor flux and sine of hysteresis angle
Stator and rotor flux only
Correct answer
Rotor flux only
For the three coupled coils shown below, the total inductance will be ________.
60 H
81 H
66 H
90 H
Correct answer
60 H
The magnetic flux through a coil having a single turn is varying according to the relation φ = (5t2 + 4t + 10) wb. Determine the impedance of the coil if the induced current through the coil is 5A at t = 2 seconds.
4 Ω
4.8 Ω
40 Ω
8.4 Ω
Correct answer
4 Ω
1 ampere of current is equal to how many number of electrons?
4.25 × 10-18
4.25 × 1018
6.25 × 1018
6.25 × 10-18
Correct answer
4.25 × 10-18
Consider the following statements about equivalent circuit with core losses of single-phase motor and select the correct option.
Both 1 and 2 are not true
Only 1 is true
Both 1 and 2 are true
Only 2 is true
Correct answer
Both 1 and 2 are not true
In a thermal power plant, the overall efficiency can be determined using which of the following?
Carnot Cycle Efficiency
Rankine Cycle Efficiency
Regenerative Cycle Efficiency
Boiler Efficiency × Generator Efficiency × Turbine Efficiency
Correct answer
Carnot Cycle Efficiency
A light source with a candle worth of power produces _______.
one lumen / radian
one lumen / watt
one lumen / steradian
one lumen / meter
Correct answer
one lumen / radian
200 questions in the full paper