Held in 2025
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 the following, four roll numbers or centre codes are given. Three share a common pattern or belong to one group, but one is different. Select the odd one out.
220112, 240213, 220406, 220519
220112
240213
220406
220519
Correct answer
220112
In the following, four roll numbers or centre codes are given. Three share a common pattern or belong to one group, but one is different. Select the odd one out.
540205, 540908, 551214, 540603
540205
540908
551214
540603
Correct answer
540205
Complete the analogy.
G : K :: M : ?
O
R
P
Q
Correct answer
O
Complete the analogy.
QRS : NOP :: DEF : ?
BKL
ABC
BCD
IJK
Correct answer
BKL
Complete the analogy.
FJNR : LPSX :: EHQS : ?
KNUY
KOWY
KNVY
KORY
Correct answer
KNUY
Find the missing term in the series: M, K, I, G, ?
F
H
E
J
Correct answer
F
Find the missing term in the series:
E, J, O, T, ?
V
W
X
Y
Correct answer
V
Find the missing number in the series:
100, 90, 80, 70, ?
60
65
75
50
Correct answer
60
Find the missing number in the series:
2, 3, 5, 8, 13, ?
18
25
23
21
Correct answer
18
Find the missing number in the series:
2, 6, 15, 31, ?
50
54
56
58
Correct answer
50
Complete the analogy.
Marathon : Race :: Hibernation : ?
Sleeping
Running
Dream
Inactivity
Correct answer
Sleeping
Complete the analogy.
Photosynthesis : Chlorophyll :: Hearing : ?
Bone
Cochlea
Voice
Eardrum
Correct answer
Bone
Find the odd one out in the given semantic series based on the pattern identified.
Uncle, Sister, Aunt, Cousin
Uncle
Sister
Aunt
Cousin
Correct answer
Uncle
Four people, M, N, O, and P, live on floors 1-4. M is just above N; O is just below P; N is not on floor 1.
Who lives on floor 3?
N
M
O
P
Correct answer
N
In a certain code, CREATE is written as DQFZUD.
How is SCHOOL coded?
TIDPMM
TBINPK
TIDPLL
TIDPML
Correct answer
TIDPMM
If PENCIL is coded as QDOBJK, then how is ERASER coded?
FQBQFQ
FQBQFR
FQBRFQ
FQBQEQ
Correct answer
FQBQFQ
A sudden spike in hospital visits for food poisoning is reported.
What could be the probable cause?
A major festival with food stalls was recently held
People have started cooking at home more
Restaurants reduced their menu prices
Demand for salads has decreased
Correct answer
A major festival with food stalls was recently held
Four people - T, A, L, and M - visited a city in August on 2, 9, 16, and 23. A did not go at the earliest or latest. M travelled immediately before L. L did not go on the 23rd.
Which person travelled on the 9th?
A
L
T
M
Correct answer
A
Four students - Nisha, Pratap, Ria, and Simran - travelled to four science labs on June 5th, 10th, 15th, and 20th. Simran went just before Ria. Pratap after Nisha. Simran did not go on the 10th or 15th.
Who went on the 10th?
Simran
Ria
Nisha
Pratap
Correct answer
Simran
A teammate’s idea is not selected.
What’s the best thing to say?
"Your idea was useless"
"It was good, maybe next time"
"Mine was better"
Ignore them
Correct answer
"Your idea was useless"
During a team task, two members frequently disagree and meetings become unproductive.
What high emotional intelligence approach enhances team function?
Alternate leadership roles and set ground rules for communication
Ignore disagreements and focus on deliverables
Assign one member an extra workload
Remove both members from future meetings
Correct answer
Alternate leadership roles and set ground rules for communication
Arrange as in a dictionary and select the word that comes first:
TABLE, TAB, TABBY, TACKLE
TAB
TABBY
TABLE
TACKLE
Correct answer
TAB
Find the word first in the dictionary:
STONE, STONY, STOP, STORK
STONE
STONY
STOP
STORK
Correct answer
STONE
Which number will replace the question mark?
4, 9, 19, 39, ?
49
59
69
79
Correct answer
49
Find the next number: 7, 14, 28, 56, ?
84
100
112
128
Correct answer
84
A trader marks his goods at \(40%\) above cost and gives a discount of \(10%\).
His profit percent is:
26%
27%
28%
30%
Correct answer
26%
If you forget someone’s name in conversation, the best recovery is:
Avoid using their name
End the conversation quickly
Guess the name
Politely ask them to repeat it
Correct answer
Avoid using their name
Rearrange T E N A N C E into an English word.
CANTEEN
ENACTNE
ANNCEET
NACTENE
Correct answer
CANTEEN
Rearrange the letters O M E R D A into a valid English word.
MOARED
ROAMED
DEMARO
DOREAM
Correct answer
MOARED
You’re leading a team and a member makes repeated minor mistakes.
What is the best decision?
Report to HR at once
Ignore mistakes
Offer guidance and training
Remove them from the project
Correct answer
Report to HR at once
You are overburdened with tasks and deadlines are approaching.
What should you do first?
Work overtime regularly
Take sick leave
Refuse all new tasks
Delegate or prioritise tasks as per urgency
Correct answer
Work overtime regularly
A school has more boys than girls, but the number of teachers teaching boys is fewer.
What can be inferred?
Boys get less attention
Girls get equal attention
Number of girls is less
Teachers prefer girls
Correct answer
Boys get less attention
A company’s revenue grew \(20%\) this year, but the cost of raw materials rose by \(35%\), and total expenses rose by \(25%\). Last year’s profit margin was \(15%\).
Which inference is most valid?
Company broke even
Profit margins stayed the same
Profit margins improved
Profit margins declined
Correct answer
Company broke even
A project was completed before the deadline, but the quality audit found many defects.
What is the best managerial judgement?
Team is highly efficient
Audit criteria were unfair
Project scope was small
Team focused on speed over quality
Correct answer
Team is highly efficient
Evaluate {144\(\div\)12-6}\(\times\)(54\(\div\)9+3).
72
60
54
66
Correct answer
72
Evaluate \((80 \div 5 - 8) \times (12 - 7)\).
32
40
25
35
Correct answer
32
If # = subtraction, $ = division, @ = multiplication, and % = addition, then what is 50 # 20 $ 5 @ 4 % 6?
20
30
40
35
Correct answer
20
A machine costs ₹250000 and depreciates 12% every year. What is its value after 3 years?
170368
172064
180000
175500
Correct answer
170368
The population of a city increased by 5% annually for 4 years, then dropped by 10% in the 5th year. If the initial population = \(200,000\), what is the approximate population after 5 years?
242,611
240,000
218,791
243,000
Correct answer
242,611
If ’P is the father of Q’ and ’Q is the mother of R’, then how is P related to R?
Uncle
Grandmother
Grandfather
Brother
Correct answer
Uncle
A woman says, "He is the son of my father’s only daughter".
Who is the man to the woman?
Brother
Son
Nephew
Cousin
Correct answer
Brother
The average age of 40 students is 15 years. If the age of the teacher is included, the average becomes 16 years. Find the teacher’s age.
54
55
57
56
Correct answer
54
In an examination, \(60%\) % of students passed in Maths, \(70%\) % in English, and \(20%\) % failed in both.
Find the percentage who passed in both.
30%
40%
50%
60%
Correct answer
30%
In the following question, two statements are followed by two conclusions. You have to assume the given statements to be true, even if they seem to be at variance with commonly known facts. Read both the conclusions and then decide which of the given conclusions logically follows from the statements.
Statements:
All cats are animals.
Some animals are wild.
Conclusions:
I. Some cats are wild.
II. All animals are cats.
Only conclusion I follows
Only conclusion II follows
Neither conclusion I nor II follows
Both conclusions I and II follow
Correct answer
Only conclusion I follows
In the following question, two statements are followed by two conclusions. You have to assume the given statements to be true, even if they seem to be at variance with commonly known facts. Read both the conclusions and then decide which of the given conclusions logically follows from the statements.
Statements:
All trains are fast.
Some fast things are unsafe.
Conclusions:
I. Some trains are unsafe.
II. All unsafe things are trains.
Only conclusion I follows
Only conclusion II follows
Both conclusions I and II follow
Neither conclusion I nor II follows
Correct answer
Only conclusion I follows
In the following question, two statements are followed by four conclusions. You have to assume the given statements to be true, even if they seem to be at variance with commonly known facts. Read the conclusions carefully and then decide which of the given conclusions logically follows from the statements.
Statements:
Some X are Y.
Some Y are Z.
Conclusions:
A. Some X are Z
B. All X are Z
C. No X are Z
D. Cannot say
Only A
Only B
Only C
Only D
Correct answer
Only A
In the following question, two statements are followed by four conclusions. You have to assume the given statements to be true, even if they seem to be at variance with commonly known facts. Read the conclusions carefully and then decide which of the given conclusions logically follows from the statements.
Statements:
Some mountains are tall.
All tall things cause shadow.
Conclusions:
I. Some mountains cause shadow
II. All shadows are caused by mountains
III. No mountain causes shadow
IV. Some shadows are tall
I only
II only
Both I and III
Both I and IV
Correct answer
I only
City’s crime rate dropped \(10%\) after community policing was introduced.
Which inference is valid?
Police got more funds
Citizens became more cooperative
Criminals left the city
Laws became stricter
Correct answer
Police got more funds
In a public seminar, an attendee asks a long, irrelevant question.
What’s the best moderator response?
Acknowledge and gently return to topic
Tell them it’s irrelevant rudely
Ignore them
Cut them off mid-sentence
Correct answer
Acknowledge and gently return to topic
What is the focus of the Ease of Doing Business (EoDB) index?
Environmental sustainability
Social equality
Regulatory environment for businesses
Technological advancement
Correct answer
Environmental sustainability
Which of the following is known as ’administered prices’?
Prices set based on negotiation between buyers and sellers
Prices set by market forces
Prices set by sellers
Prices set by the central planning authority
Correct answer
Prices set based on negotiation between buyers and sellers
A major Ease of Doing Business (EoDB) challenge in developing countries is:
Over-automation
Currency appreciation
Free trade agreements
Lack of physical infrastructure
Correct answer
Over-automation
What does the "L1" in Aditya-L1 refer to?
Lagrange Point 1
First stage of Sun
Launch vehicle
Light speed zone
Correct answer
Lagrange Point 1
What is the purpose of SSLV (Small Satellite Launch Vehicle)?
Monitor black holes
Carry large communication satellites
Launch small satellites on demand
Launch interplanetary missions
Correct answer
Monitor black holes
Which of the following is an example of implicit cost?
Wages to labourers
Rent for the use of own land
Raw material purchase
Interest on borrowed money
Correct answer
Wages to labourers
Which of the following is TRUE about the Fundamental Duties in the Indian Constitution?
Fundamental Duties are justiciable rights
Fundamental Duties are non-justiciable
The Fundamental Duties are only applicable to non-citizens
The Constitution provides a separate enforcement mechanism for Fundamental Duties
Correct answer
Fundamental Duties are justiciable rights
Which body has the power to amend the Constitution of India?
The President
The State Legislative Assemblies
The Supreme Court
The Parliament
Correct answer
The President
Which of the following statements about the Parliament of India is TRUE?
The Lok Sabha is the only house of Parliament
The Lok Sabha is appointed by the President
The President can dissolve the Rajya Sabha
The Rajya Sabha cannot be dissolved
Correct answer
The Lok Sabha is the only house of Parliament
The first sultan to implement market regulations and price control was:
Alauddin Khalji
Ghiyasuddin Tughlaq
Muhammad Bin Tughlaq
Firoz Shah Tughlaq
Correct answer
Alauddin Khalji
Which Sultan of Delhi was NOT of slave origin nor associated with any slave dynasty?
Balban
Qutb-ud-din Aibak
Jalaluddin Khalji
Iltutmish
Correct answer
Balban
Which article provides for the discretionary power of the Governor in certain legislative matters?
Article 155
Article 161
Article 168
Article 163
Correct answer
Article 155
Which constitutional authority adjudicates disputes related to the distribution of revenue between the Centre and the States?
The Attorney General
The Supreme Court
The President of India
The Finance Commission
Correct answer
The Attorney General
Which Article details the power of the Governor to reserve a state bill for the President’s consideration?
Article 199
Article 202
Article 201
Article 200
Correct answer
Article 199
Under which Article can the President withhold assent to a state bill and reserve it for his/her consideration?
Article 200
Article 199
Article 201
Article 202
Correct answer
Article 200
The highest peak in the Himalayas is located in which country?
Nepal
India
Pakistan
Bhutan
Correct answer
Nepal
Which of these countries does NOT border the Indian Ocean?
India
South Africa
Australia
China
Correct answer
India
When was Chabahar Port inaugurated?
2015
2016
2017
2018
Correct answer
2015
The "Finance Commission" in India plays a crucial role in fiscal federalism. Which of the following is a primary function of the Finance Commission?
To formulate the annual budget of the central government.
To advise the President on the distribution of net proceeds of taxes between the Union and the States, and the allocation of the States’ share among themselves.
To oversee the monetary policy and regulate the banking sector in India.
To audit the accounts of the Union and the State governments.
Correct answer
To formulate the annual budget of the central government.
Consider the following statements regarding the "Pradhan Mantri Kisan Urja Suraksha evam Utthan Mahabhiyan (PM-KUSUM)" scheme:
I. It aims to promote the use of diesel-based irrigation pumps by providing subsidies.
II. One of its components supports the installation of standalone solar agriculture pumps.
III. It encourages farmers to set up grid-connected solar power plants on their barren lands.
IV. The scheme mandates that farmers sell all the generated solar power back to the grid.
Which of the above statements accurately describe the components and objectives of the PM-KUSUM scheme?
I and III only
II and III only
I, III, and IV only
II, III, and IV only
Correct answer
I and III only
The Rajput style of architecture often included chhatris, which are:
Pillared halls for dance performances
Small domed pavilions used as decorative elements
Large gateways to temples or forts
Stepped water tanks for ritual purposes
Correct answer
Pillared halls for dance performances
In which traditional architectural style are the Buddhist monasteries in Sikkim built?
Persian
Mughal
Tibetan
South Indian Dravidian
Correct answer
Persian
Who wrote Shadow Lines, a novel that received the Sahitya Akademi Award in 1989?
Arundhati Roy
Amitav Ghosh
Vikram Seth
Upamanyu Chatterjee
Correct answer
Arundhati Roy
Which of the following slogans became popular during the Fifth Five-Year Plan in 1974-1978?
Jai Jawan Jai Kisan
Make in India
Digital India
Garibi Hatao
Correct answer
Jai Jawan Jai Kisan
The trade policy framework before 1990 can be most accurately described as:
Strongly focused on liberalization and export promotion
Mainly aimed at supporting free trade agreements
Largely influenced by market forces with minimal government interference
Protectionist, inward-looking and characterized by high tariffs and quantitative restrictions
Correct answer
Strongly focused on liberalization and export promotion
In the context of India’s inaugural Five-Year Plan, which foundational infrastructure initiative was accorded topmost strategic priority to establish the prerequisites for future industrial growth?
Construction of dams and irrigation canals
Development of integrated steel plants
Creation of dedicated industrial corridors
Expansion of interstate highway networks
Correct answer
Construction of dams and irrigation canals
Which Austrian author received the Nobel Prize in Literature in 2019, sparking controversy due to his political views?
Elfriede Jelinek
Peter Handke
Thomas Bernhard
Ingeborg Bachmann
Correct answer
Elfriede Jelinek
The Charter Act of 1813 marked a significant change in the British East India Company’s policy by:
Granting the Company a monopoly over all trade with India.
Ending the Company’s trade monopoly in India, except for tea and trade with China.
Allowing the Company to directly administer all territories in India.
Establishing the first Supreme Court in Calcutta.
Correct answer
Granting the Company a monopoly over all trade with India.
The nature of land revenue settlements introduced by the British in India had a varying impact across different regions.
Which of the following best explains a key difference between the "Permanent Settlement" and the "Mahalwari Settlement"?
The Permanent Settlement involved periodic revision of revenue demands, while the Mahalwari Settlement fixed revenue in perpetuity.
The Permanent Settlement established direct relationships with individual cultivators, whereas the Mahalwari Settlement involved village communities.
The Permanent Settlement was primarily implemented in the Bombay and Madras Presidencies, while the Mahalwari system was prevalent in Bengal.
The Permanent Settlement aimed to create a landed gentry with proprietary rights, while the Mahalwari system recognized collective ownership at the village level.
Correct answer
The Permanent Settlement involved periodic revision of revenue demands, while the Mahalwari Settlement fixed revenue in perpetuity.
Which of these changes in Bharatiya Sakshya Adhiniyam (BSA), improves protection against false testimony?
Legal presumption of falsehood for inconsistent witnesses
Ban on hostile witnesses
Mandatory video recording of key witness depositions
Introduction of polygraph tests
Correct answer
Legal presumption of falsehood for inconsistent witnesses
Under the Bharatiya Sakshya Adhiniyam, which type of evidence is newly recognized as valid?
Dreams
Digital and electronic records
Oral traditions
Hearsay statements
Correct answer
Dreams
How is the burden of proof determined in civil cases?
Always on the plaintiff
Always on the defendant
On the person who asserts a fact
On the investigating officer
Correct answer
Always on the plaintiff
As of April 2025, the Chief Election Commissioner (CEC) of India is _____ .
Rajiv Kumar
Sunil Arora
Sushil Chandra
Gyanesh Kumar
Correct answer
Rajiv Kumar
Who is the chairman of the Securities and Exchange Board of India (SEBI) as, March 2025?
Ajay Tyagi
Tuhin Kanta Pandey
Subhash Chandra Garg
Madhabi Puri Buch
Correct answer
Ajay Tyagi
Who among the following was appointed as a full-time member of NITI Aayog in March 2025?
Sanjay Kumar Mishra
Dr. Jay Bhattacharya
Rajiv Gauba
CS Setty
Correct answer
Sanjay Kumar Mishra
Which Indian freedom fighter was known as the Jhansi Rani of Travancore?
Accamma Cherian
Lakshmi N. Menon
A.V. Kuttymalu Amma
Annie Mascarene
Correct answer
Accamma Cherian
Which dance form is commonly performed during the Holi festival in Madhya Pradesh?
Gendi Dance
Dhol Cholom
Matki Dance
Karma Dance
Correct answer
Gendi Dance
Which among these is not one of the only four Indian Tennis players to have won a Grand Slam in their careers?
Rohan Bopanna
Vijay Amritraj
Sania Mirza
Leander Paes
Correct answer
Rohan Bopanna
What was the contribution of the Bhakti movement to Kathak?
It shifted Kathak from temples to courts
It introduced Radha-Krishna themes in dance
It focused solely on rhythmic purity
It led to the development of pure dance techniques
Correct answer
It shifted Kathak from temples to courts
The Hathigumpha inscription talks about which of the following?
The achievements of Kharavela of Kalinga
The reign of Ashoka
The military campaigns of Samudragupta
The religious reforms of Harsha
Correct answer
The achievements of Kharavela of Kalinga
Which pairs are INCORRECTLY matched?
Surkotada - Evidence of horse remains
Manusmriti - Earliest Vedic text
Harappa - Granaries
1 and 2 only
2 only
3 only
1, 2, and 3
Correct answer
1 and 2 only
The Hazira-Vijaipur-Jagdishpur pipeline does NOT connect, which of the following states?
Gujarat
Madhya Pradesh
Uttar Pradesh
Jharkhand
Correct answer
Gujarat
Which of the given statements is/are INCORRECT regarding coal deposits in India?
Bituminous coal forms the largest deposits of coal in India.
More than \(80%\) of coal in India is of coking grade, which can be used in the production of steel.
1 only
2 only
Both 1 and 2
Neither 1 nor 2
Correct answer
1 only
With reference to the management of minor minerals in India, consider the following statements:
Sand is a ’minor mineral’ according to the prevailing law in the country.
State Governments have the power to grant mining leases of minor minerals, but the powers regarding the formation of rules related to the grant of minor minerals lie with the Central Government.
State Governments have the power to frame rules to prevent illegal mining of minor minerals.
Which of the statements given above is/are CORRECT?
1 and 3
2 and 3
3 only
1, 2 and 3
Correct answer
1 and 3
Which folk music style from Bengal involves songs by mystic performers and emphasizes inner spirituality?
Bhavageete
Baul
Lavani
Pandavani
Correct answer
Bhavageete
In Carnatic music, which form of composition typically begins with an alapana (improvised raga exposition) followed by a structured composition?
Varnam
Kriti
Tillana
Ragam-Tanam-Pallavi
Correct answer
Varnam
Which of these tribes practice transhumance?
Gujjars
Bakarwals
Bhutiyas
Gaddis
1 and 3 only
1, 2, and 4 only
4 only
1, 2, 3, and 4
Correct answer
1 and 3 only
In which of the following states, the highest number of tribal people was recorded in census of India 2011?
Odisha
Rajasthan
Maharashtra
Madhya Pradesh
Correct answer
Odisha
What causes rainfall in Tamil Nadu and the adjoining part of Andhra Pradesh in the months of November and December?
Norwesters
South East Monsoon
Retreating Monsoon
Tropical Jet Stream
Correct answer
Norwesters
What does crankcase ventilation prevent?
Fuel vaporization
Overheating of piston
Excessive cooling
Pressure buildup due to blowby gases
Correct answer
Fuel vaporization
For adiabatic compression, heat transfer is:
Maximum
Minimum
Zero
Very high
Correct answer
Maximum
Roots blower is an example of:
Centrifugal compressor
Positive displacement compressor
Axial flow compressor
Dynamic compressor
Correct answer
Centrifugal compressor
Mechanical efficiency is:
Brake power / Indicated power
Brake power \(\times\) Friction factor
Indicated power / Brake power
Total energy input / Shaft output
Correct answer
Brake power / Indicated power
What does the blade velocity coefficient measure?
Work done
Friction loss
Pressure loss
Enthalpy drop
Correct answer
Work done
What does friction in a nozzle affect?
Enthalpy only
Pressure only
Only nozzle material
Velocity and enthalpy
Correct answer
Enthalpy only
What is the primary cause of engine knocking in SI engines?
Low exhaust pressure
Early spark timing
Weak compression
Auto-ignition of end-gas
Correct answer
Low exhaust pressure
What does the turbine in a gas turbine plant usually drive?
A generator only
Only the fuel system
A pump
The compressor and generator
Correct answer
A generator only
If Brake Power = \(5 \text{ kW}\), and Friction Power = \(1.2 \text{ kW}\). What is mechanical efficiency?
65%
68%
72%
81%
Correct answer
65%
A 4-stroke engine has 4 cylinders, 80 mm bore, 100 mm stroke. Find total swept volume.
2012 \(\text{cm}^3\)
2865 \(\text{cm}^3\)
1054 \(\text{cm}^3\)
3045 \(\text{cm}^3\)
Correct answer
2012 \(\text{cm}^3\)
An engine runs at 3000 rpm with torque of 100 Nm. Find brake power.
Correct answer
The correct formula for the angle of contact (\(\theta\)) in a cross belt drive is:
\(\theta=(180^{\circ}-2\alpha) \times \pi/180\)
\(\theta=(180^{\circ}+2\alpha) \times \pi/180\)
\(\theta=(90^{\circ}-2\alpha) \times \pi/180\)
\(\theta=(360^{\circ}-2\alpha) \times \pi/180\)
Correct answer
\(\theta=(180^{\circ}-2\alpha) \times \pi/180\)
A clutch transmits 35 kW of power at 1400 rpm. What is the torque transmitted?
100 Nm
300 Nm
Correct answer
What is the formula for the diagonal pitch (\(pd\)) for zig-zag riveted joints?
Pd = (2p + d) / 3
Pd = (0.5p + d) / 3
Pd = (1.5p + d) / 3
Pd = (2.5p + d) / 3
Correct answer
Pd = (2p + d) / 3
In the case of a multiple-disc clutch, if n1 is the number of discs on the driving shaft and n2 is the number of discs on the driven shaft, then the number of pairs of contact surfaces will be:
\(n_1 + n_2 + 1\)
\(n_1 + n_2 + 2\)
\(n_1 + n_2 - 1\)
\(n_1 + n_2 - 2\)
Correct answer
\(n_1 + n_2 + 1\)
What is the typical groove angle of a pulley used in V-belt drives?
\(20^\circ - 25^\circ\)
\(32^\circ - 38^\circ\)
\(25^\circ - 32^\circ\)
\(38^\circ - 45^\circ\)
Correct answer
\(20^\circ - 25^\circ\)
A multi-plate clutch with 7 outer plates and 5 inner plates is used. What is the number of pairs of contact surfaces?
5
7
6
11
Correct answer
5
For a roller bearing, the life exponent is 10/3. If the load is doubled, the bearing life will become:
One-fourth
One-eighth
One-tenth
Half
Correct answer
One-fourth
A boiler shell has an internal diameter of 2000 mm and a plate thickness of 15 mm. It is subjected to an internal pressure of 4 MPa. If the joint efficiency is 90%, what is the maximum allowable longitudinal stress?
286.29 MPa
296.29 MPa
276.29 MPa
266.29 MPa
Correct answer
286.29 MPa
Which of the following is commonly used as a journal bearing material?
Babbitt metal
Cast iron
Aluminium
Copper
Correct answer
Babbitt metal
Which of the following correctly gives the excess pressure inside a hollow soap bubble of radius \(r\) and surface tension \(T\)?
\(T/r\)
\(2T/r\)
\(3T/r\)
\(4T/r\)
Correct answer
\(T/r\)
The common bond for diamond grinding wheels is _______.
Rubber
Metal
Shellac
Vitrified
Correct answer
Rubber
Why is alcohol sometimes used in place of mercury in manometers?
It has a higher density than mercury
It has better thermal conductivity
It provides higher sensitivity due to lower density
It forms stronger meniscus for accurate reading
Correct answer
It has a higher density than mercury
What does the grinding wheel structure describe?
Abrasive type
Bond type
Density/Porosity
Grain size
Correct answer
Abrasive type
What is the primary advantage of an inclined single-column manometer over a vertical one?
It can withstand higher pressures
It occupies less space
It provides higher sensitivity for small pressure measurements
It reduces evaporation of the manometric fluid
Correct answer
It can withstand higher pressures
How is the Reynolds number in a fluid flow defined?
Inertial force to gravitational force
Viscous force to inertial force
Pressure force to surface tension force
Inertial force to viscous force
Correct answer
Inertial force to gravitational force
In an incompressible, irrotational flow field, which of the following statements is TRUE regarding the relation between streamlines and equipotential lines?
They are always parallel to each other.
They intersect each other at an angle determined by local velocity.
They never intersect and are always concentric.
They intersect orthogonally at every point in the flow field.
Correct answer
They are always parallel to each other.
In high-speed turning, the specific cutting energy reduces because:
Bulk heating reduces strength of workpiece
Cutter softens at high rpm
Tool wear reduces cutting edge
Chip flow becomes laminar
Correct answer
Bulk heating reduces strength of workpiece
Differential indexing is preferred over simple indexing when locating:
Prime numbers of teeth
Equally spaced holes
Splines on disks
Squares on round plate
Correct answer
Prime numbers of teeth
Which of the following correctly describes the Eulerian method of analysing fluid motion?
By following a single particle
By tracking density variation in the system only
At a fixed point in space over time
By observing flow from a rotating frame of reference
Correct answer
By following a single particle
Creep-feed grinding is particularly suited for materials like Inconel due to:
High specific energy
Low wheel speeds
Highly continuous chip removal
Deep single-pass cuts
Correct answer
High specific energy
Which part holds the tool in a lathe?
Tailstock
Tool post
Lead screw
Saddle
Correct answer
Tailstock
Which lathe part moves the carriage automatically?
Feed rod
Chuck
Tailstock
Compound rest
Correct answer
Feed rod
For a steady flow, which of the following statements is correct?
All spatial derivatives are zero
Convective acceleration is zero
Local acceleration is zero
Total acceleration is zero
Correct answer
All spatial derivatives are zero
Which part holds the drill in the drilling machine?
Base
Chuck
Arbor
Arm
Correct answer
Base
Which surface is mainly produced on a horizontal milling machine?
Spiral
Circular
Flat
Helical
Correct answer
Spiral
A wooden block has a volume of 2 m\(^3\) and floats in water with 75% of its volume submerged. What is the density of the wood?
750 kg/m\(^3\)
1000 kg/m\(^3\)
450 kg/m\(^3\)
Correct answer
750 kg/m\(^3\)
At point P(2,3), what is the magnitude of the velocity vector for the 2D flow with stream function \(\psi=2xy\)?
6
7.2
5
4
Correct answer
6
A closed cylindrical container of diameter 200 mm and height 150 mm is completely filled with water and rotated about its vertical axis at 200 r.p.m. What is the angular velocity of the system?
Correct answer
In a rotational flow, which statement about the velocity potential function (\(\Phi\)) is correct?
Exists and satisfies Laplace equation
Exists but does not satisfy Laplace equation
Does not exist
Exists only for incompressible flow
Correct answer
Exists and satisfies Laplace equation
Choose from the following the process used for the making of ornaments, statues, toys, and other such novelties of non-ferrous metal.
Sand casting
Investment casting
Centrifugal casting
Machine moulding
Correct answer
Sand casting
An expendable pattern is used in ______ casting.
investment
slush
centrifugal
squeeze
Correct answer
investment
The continuity principle in fluid mechanics satisfies which of the following:
It defines a relationship between the mass and energy of the fluid system
It is valid exclusively for irrotational fluid motion
It ensures that the mass flow rate remains constant along a given streamline
It implies that the fluid medium can be treated as a continuous substance
Correct answer
It defines a relationship between the mass and energy of the fluid system
By what is the arc in arc welding created between the electrode and the workpiece?
Contact resistance
Chemicals
Voltage
Frequency
Correct answer
Contact resistance
Weld spatter is considered as which of the following?
A welding defect
A flux
A filler metal
An electrode
Correct answer
A welding defect
What is the Shrink rule used for in casting processes?
Machining allowance
Draft allowance
Expansion allowance
Contraction allowance
Correct answer
Machining allowance
What is the primary objective of full annealing?
Reducing ductility and machinability
Reduce ductility and resilience
Remove foreign impurities and improve surface finish
Increase ductility and machinability
Correct answer
Reducing ductility and machinability
Which process achieves maximum surface hardness in the case of Steel?
Cyaniding
Carburising
Fame hardening
Nitriding
Correct answer
Cyaniding
Consider the following statements:
Forging reduces the grain size of the metal, which results in a decrease in strength and toughness.
A forged component can be provided with thin sections without reducing the strength.
Which of the statements given above is/are correct?
1 only
2 only
Both 1 and 2
Neither 1 nor 2
Correct answer
1 only
Which forging process involves decreasing the diameter of a bar and increasing its length?
Fullering
Punching
Upsetting
Bending
Correct answer
Fullering
Choose the correct match between the equipment listed in List-I and the manufacturing processes in List-II.
List-I: Equipment : P:Hot chamber machine, Q:Muller, R:Dielectric baker, S:Sand blaster
List-II: Process
Cleaning
Core making
Die casting
Annealing
Sand mixing
Select the correct code:
P-2, Q-1, R-4, S-5
P-4, Q-2, R-3, S-5
P-4, Q-5, R-1, S-2
P-3, Q-5, R-2, S-1
Correct answer
P-2, Q-1, R-4, S-5
Chvorinov’s rule states that the time required for a casting to solidify is proportional to the ratio of its volume to surface area raised to the power n.
What is the typical value of n?
1
2
3
Correct answer
Which of the following characteristics or materials are associated with shell moulding?
Use of resin binder
Capability of achieving close dimensional tolerance
Low cost
Good surface finish
Select the correct answer using the code below:
1 and 2
1 and 3
2 and 3
1, 2 and 3
Correct answer
1 and 2
In the carburizing process used for heat treatment of steel components, which form of carbon is primarily absorbed at the surface to create a high-carbon layer?
Graphite flakes
Free carbon
Pearlite
Cementite
Correct answer
Graphite flakes
At the critical point, which of the following statements is true?
Liquid and vapour phases are indistinguishable
Pressure becomes zero
Only vapor exists
Only liquid exists
Correct answer
Liquid and vapour phases are indistinguishable
Which of the following statements best describes the purpose of the kinetic energy correction factor in fluid mechanics?
It has the same units as velocity head
It is used in the continuity equation
It compensates for the non-uniform velocity distribution across a flow cross-section
It adjusts the Bernoulli constant in the energy equation
Correct answer
It has the same units as velocity head
The type of fluid motion in which the flow follows a curved path and sustains itself without any continuous external force is called:
Radial flow
Free vortex flow
Forced vortex flow
Spiral flow
Correct answer
Radial flow
The Pelton wheel turbine is most appropriate for operating under conditions of:
High head and low flow rate
High head and high flow rate
Low head and low flow rate
Medium head and medium flow rate
Correct answer
High head and low flow rate
For a Pelton turbine to generate maximum power output, what should be the optimal speed of the bucket in relation to the speed of the water jet?
Same as the jet speed
Twice the jet speed
Half of the jet speed
Unrelated to the jet speed
Correct answer
Same as the jet speed
Based on typical engineering design considerations, which of the following lists shows the Kaplan, Francis, and Pelton hydraulic turbines arranged from highest to lowest flow rate?
Francis, Kaplan, Pelton
Pelton, Kaplan, Francis
Pelton, Francis, Kaplan
Kaplan, Francis, Pelton
Correct answer
Francis, Kaplan, Pelton
For optimal performance, the Pelton turbine operates efficiently when its speed ratio falls within which of the following ranges?
Correct answer
In turbine applications, how does a tapered draft tube differ from a cylindrical draft tube?
Converts a greater portion of kinetic head into pressure head
Prevents hammer blow and surges
Prevents cavitation even when operating under reduced discharge conditions
Responds better to load fluctuations
Correct answer
Converts a greater portion of kinetic head into pressure head
In turbulent flow, shear stress primarily arises due to which of the following factor?
The density of the fluid
The viscosity of the fluid
Variations in velocity along the flow direction
Variations in velocity both along and across the flow direction
Correct answer
The density of the fluid
Which technique is most often used in practice to manage the boundary layer and avoid flow separation?
Suction of accelerating fluid within the boundary layer
Smoothening the surfaces
Suction of slow-moving fluid within the boundary layer
Using large divergence angles in the boundary layer
Correct answer
Suction of accelerating fluid within the boundary layer
What is the maximum value of static friction, just before a body begins to move?
Static friction
Dynamic friction
Limiting friction
Rolling friction
Correct answer
Static friction
The force of friction between two surfaces in contact is directly proportional to which of the following?
Normal reaction
Angle of friction
Angle of repose
Velocity
Correct answer
Normal reaction
In mechanics, what does the term Coulomb friction refer to?
Friction between electrically charged bodies
Friction between bodies having relative motion
Friction between solids and liquids
Friction between dry surfaces
Correct answer
Friction between electrically charged bodies
If a number of forces act simultaneously on a particle, it is possible:
Not to replace them with a single force
To replace them with a single force
Not to replace them with two forces acting through the centre of gravity
To replace them with a couple
Correct answer
Not to replace them with a single force
Where is the centre of gravity of a scalene triangle located?
The midpoint of the base
The intersection of its medians
The intersection of its altitudes
The midpoint of one of the sides
Correct answer
The midpoint of the base
In which of the following cases is friction considered harmful?
In walking
In case of working of an engine
In holding something
In clutch function
Correct answer
In walking
Which of the following is not a scalar quantity?
Mass
Volume / Mass
Force \(\times\) Distance
Rate of change of velocity
Correct answer
Mass
According to Lami’s Theorem, each force in a system of three concurrent, coplanar forces is proportional to which of the following?
The cosine of the angle between the other two forces
The sine of the angle between the other two forces
The tangent of the angle between the other two forces
The cotangent of the angle between the other two forces
Correct answer
The cosine of the angle between the other two forces
A force of 50 N acts at a perpendicular distance of 0. 4 m from a pivot. What is the moment about the pivot?
10 Nm
20 Nm
15 Nm
13 Nm
Correct answer
10 Nm
What is the ratio of the new acceleration to the original if the applied force is doubled and the mass is reduced to half?
1:2
2:1
1:4
4:1
Correct answer
1:2
Which of the following is true about the direction of tension in a string?
It always acts away from the body it’s attached to
It always acts toward the pulley
It acts opposite to the direction of motion
Tension has no direction
Correct answer
It always acts away from the body it’s attached to
What is the ratio of the endurance limit in shear to the endurance limit in flexure for most ductile materials?
Correct answer
What is residual stress?
Stress that remains locked inside a material or component even after the original cause of the stress
Stress concentration
Stress that remains unlocked inside a material
Resistant stress
Correct answer
Stress that remains locked inside a material or component even after the original cause of the stress
True stress is defined as:
Load / Instantaneous area
Load / Original cross sectional area
Load / Longitudinal strain
Load / Elastic modulus
Correct answer
Load / Instantaneous area
In a thin cylinder, the volume change is proportional to:
Mechanical properties, geometry of cylinder and pressure
Diameter only
Stress only
Pressure only
Correct answer
Mechanical properties, geometry of cylinder and pressure
A supported beam with a span of \(8 m\) carries a point load of \(24 kN\) at its central point. Find the reactions at the supports.
\(12 kN\)
\(24 kN\)
\(36 N\)
\(46 kN\)
Correct answer
\(12 kN\)
For an isotropic material, the number of independent elastic constants is:
2
81
21
36
Correct answer
2
In a shear force diagram, the slope at any point represents:
Bending moment
Load intensity
Tensile stress
Compressive stress
Correct answer
Bending moment
The maximum slope in a cantilever beam of length L, having an elastic modulus of E, carrying a point load W at the free end is: (where I is the moment of inertia)
WL2/4EI
WL2/8EI
WL2/3E|
WL2/2E|
Correct answer
WL2/4EI
What is the correct relation between Young’s modulus \((E)\), shear modulus \((G)\), and bulk modulus \((K)\)?
\(E = 10GK (3K + G)\)
\(E = 12GK (3K + G)\)
\(E = 9GK /(3K + G)\)
\(E = 3GK (3K + G)\)
Correct answer
\(E = 10GK (3K + G)\)
If the bending moment distribution over a certain span of a beam is parabolic, then that span of the beam is subjected to:
Uniformly Distributed Load (UDL)
Point load
Uniformly Varying Load (UVL)
Concentrated Load
Correct answer
Uniformly Distributed Load (UDL)
A thin spherical shell with a diameter of 900 mm and a thickness of 8 mm is subjected to an internal pressure of 1 MPa. What is the resulting hoop stress in the shell?
Correct answer
A thin cylindrical pressure vessel with a diameter of 500 mm is subjected to an internal pressure of 2 N/mm\(^2\). If the vessel’s wall thickness is 20 mm, calculate the hoop stress.
25 N/mm\(^2\)
35 N/mm\(^2\)
45 N/mm\(^2\)
50 N/mm\(^2\)
Correct answer
25 N/mm\(^2\)
Which gear is used to convert rotary motion into linear motion?
Spur gear
Bevel gear
Rack and Pinion gear
Spiral gear
Correct answer
Spur gear
The smaller gear in gear train is known as:
Gear
Pinion
Annular
Follower
Correct answer
Gear
The point at which two pitch circles of mating gear come in contact is known as:
Pressure point
Pitch point
Dedendum point
Contact point
Correct answer
Pressure point
In a simple band brake, the braking torque is:
Zero if the angle of contact is more than \(180^{\circ}\)
Inversely proportional to the angle of contact
Proportional to the angle of contact
Independent of the angle of contact
Correct answer
Zero if the angle of contact is more than \(180^{\circ}\)
In a radial cam, the follower moves in which direction?
Parallel to the cam axis
In any direction
Perpendicular to the cam axis
Along the cam axis
Correct answer
Parallel to the cam axis
In a structure with 3 links, 2 binary joints, and zero higher pairs, what is the degree of freedom?
Zero
One
Two
Three
Correct answer
Zero
Oldham’s coupling is used to connect two shafts that have:
An angular misalignment
Perfect alignment
A small angular misalignment
A small parallel (lateral) misalignment
Correct answer
An angular misalignment
The contact ratio is the ratio of:
Module to pitch circle diameter
Pitch circle diameter to module
Arc of contact to circular pitch
Circular pitch to path of contact
Correct answer
Module to pitch circle diameter
The loss of torque-transmitting capacity at high temperatures is called:
Fading
Rolling
Drifting
Planking
Correct answer
Fading
The energy storage capacity of a flywheel mainly depends on:
Material and size of flywheel
Size and angular velocity of the flywheel
Material and angular velocity of the flywheel
Mass and material of the flywheel
Correct answer
Material and size of flywheel
An imaginary circle that transmits motion through pure rolling and represents the same motion as the actual gear is called the:
Dedendum circle
Pitch circle
Clearance circle
Addendum circle
Correct answer
Dedendum circle
Which type of gear is used to connect two parallel shafts with quiet operation and high load capacity?
Spur gear
Mitre gear
Helical gear
Spiral gear
Correct answer
Spur gear
A governor applies a force of 120 N when the sleeve rises by 3 mm due to an increase in speed. What is the effort of the governor?
Correct answer
200 questions in the full paper