Select the related word/letters/number from the given alternatives.
Red : Colour :: French : ?
- ((a))
foreign
- ((b))
language
- ((c))
European
- ((d))
Country
Show Answer
foreign
200 questions · 120 minutes · with answers · free
Select the related word/letters/number from the given alternatives.
Red : Colour :: French : ?
foreign
language
European
Country
foreign
Select the related word/letters/number from the given alternatives.
Chips : Potatoes :: Soda : ?
Fizz
Bottle
Lemon
Water
Fizz
Select the related word/letters/number from the given alternatives.
Quadrilateral : Four :: ?
Cylinder : Circle
Cube : Square
Triangle : 180
Hexagon : Six
Cylinder : Circle
Select the related word/letters/number from the given alternatives.
FGI : HIK :: STV : ?
UVW
VWY
XYZ
UVX
UVW
Select the related word/letters/number from the given alternatives.
Dream : Area :: Frame : ?
Farmer
Ear
Fare
Freer
Farmer
Select the related word/letters/number from the given alternatives.
Brine : Inert :: Beware : ?
Arenas
Declare
Spare
Area
Arenas
Select the related word/letters/number from the given alternatives.
169 : 13 :: 225 : ?
22
25
20
15
22
Select the related word/letters/number from the given alternatives.
159 : 840 :: 345 : ?
654
765
876
987
654
Select the related word/letters/number from the given alternatives.
761 : 928 :: 651 : ?
765
753
807
951
765
Select the odd word/letters/number/word pair/number pair from the given alternatives.
kilometres
feet
grams
micrometres
kilometres
Select the odd word/letters/number/word pair/number pair from the given alternatives.
pros and cons
dead or alive
null and void
sooner or later
pros and cons
Select the odd word/letters/number/word pair/number pair from the given alternatives.
Crayon and Marker
Pen and Eraser
Book and Diary
Pen and Marker
Crayon and Marker
Select the odd word/letters/number/word pair/number pair from the given alternatives.
OU
YC
IA
EO
OU
Select the odd word/letters/number/word pair/number pair from the given alternatives.
Cuisine
Business
Disinterested
Noisiness
Cuisine
Select the odd word/letters/number/word pair/number pair from the given alternatives.
DRGK
WMUI
OHAU
XHTV
DRGK
Select the odd word/letters/number/word pair/number pair from the given alternatives.
7531
2468
9753
8642
7531
Select the odd word/letters/number/word pair/number pair from the given alternatives.
15
25
53
45
15
Select the odd word/letters/number/word pair/number pair from the given alternatives.
108, 132
114, 156
136, 152
120, 138
108, 132
In the given series one word/one term/one number is missing. Select the correct alternative from the given ones that will complete the series.
Cremation, Accolade, Maestro, Chrome, ?
Very
Zebra
Virtual
Time
Very
In the given series one word/one term/one number is missing. Select the correct alternative from the given ones that will complete the series.
Toxic, Icon, Onto, Tomorrow,?
Owl
Wet
Rat
Borrow
Owl
In the given series one word/one term/one number is missing. Select the correct alternative from the given ones that will complete the series.
age, dire, genre, stumpy, ?
splayed
secretes
preacher
shooed
splayed
In the given series one word/one term/one number is missing. Select the correct alternative from the given ones that will complete the series.
L, J, H, F, ?
E
G
D
I
E
In the given series one word/one term/one number is missing. Select the correct alternative from the given ones that will complete the series.
eca, fdb, gec, hfd, ?
ige
ieg
gei
egi
ige
In the given series one word/one term/one number is missing. Select the correct alternative from the given ones that will complete the series.
XXXXOXO, XXXXOOX, XXXXOOX, XXXOXOX, ?
XOXXOXX
XXXXOXO
XXXXOOX
XXOXXOX
XOXXOXX
In the given series one word/one term/one number is missing. Select the correct alternative from the given ones that will complete the series.
-2, 1, 5, ?, 16
9
10
11
13
9
In the given series one word/one term/one number is missing. Select the correct alternative from the given ones that will complete the series.
-10/3, ?, -2/3, 2/3, 2
-2
2
-1/3
1/3
-2
In the given series one word/one term/one number is missing. Select the correct alternative from the given ones that will complete the series.
23, 29, ?, 37, 41
30
33
31
35
30
If a < b, d > c and a < d, which of the following is true?
I. b < c
II. c > a
Only I
Neither I nor II
Only II
Both I and II
Only I
The weights of five boxes are 10, 30, 40, 70 & 70 kilograms. Which of the following cannot be the total weight (in kilograms) of any combination of these boxes?
190
180
210
200
190
If the letters Q, B, T, A, U, E & N are numbered 1, 2, 3, 4, 5, 6 & 7 respectively. Select that combination of numbers so that letters arranged accordingly, form a meaningful word.
5617312
5447134
2471563
3242637
5617312
If PROXIMAL is coded as KILCRNZO, then how will WHY be coded as?
DSB
EDC
CDE
BNM
DSB
In a certain code language, 531 means 'boy is shy', 346 means 'girl is bold', 256 means 'shy or bold'. Find the code for 'or'.
1
2
3
5
1
In a certain code language, '+' represents 'x', '-' represents '+', 'x' represents '÷' and '÷' represents '-'. Find out the answer to the following question.
0.1 + 500 - 240 × 6 = ?
90
10
1.25
108
90
If A @ B means A is father of B, A # B means A is sister of B and A ! B means A is son of B, then what does E @ F ! G # H mean, if H is a male?
H is brother of E
H is father of E
H is son of E
H is E's wife's brother
H is brother of E
If 45@23 = 14, 76@22 = 17, then find the value of 55@10 = ?
8
11
15
5
8
Which of the following words follow the trend of the given list?
Zonal, Tzars, Wizen, Seize, Waltz, ?
Unitize
Ablaze
Azure
Sanza
Unitize
Which of the following terms follows the trend of the given list?
ABC, BCAB, CABCA, __________.
BCABCA
CABCAB
ABCCBA
ABCABC
BCABCA
A girl walks 3 km East starting from her home. She then turns South and walks 2 km, then she turns West and walks 7 km, then she turns to her right and walks 2 km. Where is she now from her starting position?
10 km to the West from her home.
4 km to the East from her home.
10 km to the East from her home.
4 km to the West from her home.
10 km to the West from her home.
A is standing 6 m to the East of B. A walks 9 m South, then turns to his right and walks 7 m. At the same time, B has walked 3 m West, then he turned South and walked 9 m, then he turned to his left and walked 5 m. Where is B now with respect to the position of A?
B is 12 m to the East of A
B is 3 m to the West of A
B is 3 m to the East of A
B is 12 m to the West of A
B is 12 m to the East of A
In the question two statements are given, followed by two conclusions, I and II. You have to consider the statements to be true even if it seems to be at variance from commonly known facts. You have to decide which of the given conclusions, if any, follows from the mentioned statements.
Statement 1: All huts are made of mud.
Statement 2: Things made of mud are not strong.
Conclusion I: All huts are strong.
Conclusion II: Mud huts are not strong.
Only conclusion I follows
Either I or II follows
Neither I nor II follows
Only conclusion II follows
Only conclusion I follows
In the question a statement is given, followed by two arguments, I and II. You have to consider the statement to be true even if it seems to be at variance from commonly known facts. You have to decide which of the given arguments, if any, is a strong argument.
Statement: Should teachers be permitted to cane unruly children?
Argument I: No, this will teach them that physical violence is an acceptable means of social behaviour.
Argument II: Yes, children taught in a strict atmosphere are more successful.
only argument II is strong
neither argument I nor II is strong
both argument I and II are strong
only argument I is strong
only argument II is strong
Which of the following cube in the answer figure cannot be made based on the unfolded cube in the question figure?






Which of the following answer figure patterns can be combined to make the question figure?






Which of the following diagrams represent the relationship between Engineers, Software Engineers and Chemical Engineers?





In the following figure, square represents engineers, triangle represents environmentalists, circle represents lawyers and rectangle represents government officers. Which set of letters represents lawyers who are not environmentalists and government officers who are engineers?

E, F and B
A, E and F
B, A and E
G, F and A
E, F and B
Which answer figure will complete the pattern in the question figure?






From the given answer figures, select the one in which the question figure is hidden/embedded.






A piece of paper is folded and punched as shown below in the question figures. From the given answer figures, indicate how it will appear when opened.






If a mirror is placed on the line MN, then which of the answer figures is the right image of the given figure?






A word is represented by only one set of numbers as given in any one of the alternatives. The sets of numbers given in the alternatives are represented by two classes of alphabets as shown in the given two matrices. The columns and rows of Matrix-I are numbered from 0 to 4 and that of Matrix-II are numbered from 5 to 9. A letter from these matrices can be represented first by its row and next by its column, for example ‘N’ can be represented by 00, 12 etc and ‘C’ can be represented by 95, 76 etc. Similarly, you have to identify the set for the word ‘TYRES’.
MATRIX – I
| 0 | 1 | 2 | 3 | 4 | |
|---|---|---|---|---|---|
| 0 | N | V | P | R | W |
| 1 | X | T | N | Y | V |
| 2 | Z | P | S | X | Q |
| 3 | U | Z | X | W | U |
| 4 | Y | Y | R | N | R |
MATRIX – II
| 5 | 6 | 7 | 8 | 9 | |
|---|---|---|---|---|---|
| 5 | J | I | C | E | J |
| 6 | G | G | A | L | I |
| 7 | F | C | J | K | D |
| 8 | E | M | K | J | H |
| 9 | C | L | E | A | E |
21, 40, 04, 69, 01
12, 13, 41, 55, 69
11, 41, 44, 85, 22
31, 01, 65, 58, 41
21, 40, 04, 69, 01
Which of the following is not a part of the human stomach?
Cardia
Caecum
Fundus
Pyloric
Cardia
Which of the following white blood cells is a type of agranulocytes?
Neutrophils
Eosinophils
Lymphocytes
Basophils
Neutrophils
Which of the following is an insectivorous plant?
Pitcher
Alstonia
Calotropis
Eichhornia
Pitcher
Which of the following represents the correct pathway of water movement in the root?
Epidermis > Endodermis > Cortex > Pericycle > Xylem
Epidermis > Pericycle > Endodermis > Cortex > Xylem
Epidermis > Cortex > Endodermis > Pericycle > Xylem
Epidermis > Pericycle > Cortex > Endodermis > Xylem
Epidermis > Endodermis > Cortex > Pericycle > Xylem
Consider the following pairs.
| 1. 2-Bromopropane | (CH3)2C=CHCOCH3 |
|---|---|
| 2. Propan-1-amine | CH3–CH2–CH2–NH2 |
| 3. Dichloromethane | CH2Cl2 |
| 4. 4-Methylpent-3-en-2-one | CH3-CHBr-CH3 |
Which of the above pairs are correctly matched?
1 and 4 only
3 and 4 only
2 and 3 only
2, 3 and 4 only
1 and 4 only
What is the IUPAC name of Allyl bromide?
Dichloromethane
Tetrachloromethane
2-Chlorobutane
3-Bromopropene
Dichloromethane
Formula for Hexamethylene diamine is ________.
NH2(CH2)4NH2
NH2(CH2)6NH2
NH2(CH2)3NH2
NH2(CH2)2NH2
NH2(CH2)4NH2
Which of the following elements is the most electronegative?
Alluminium
Boron
Gallium
Thallium
Alluminium
Which HTML tag is used to make a text bold?
<body>
<b>
<None of the above>
<body>
To easily access commonly used commands and tools in a word processor use the ________ bar.
Home
Title
Menu
Tool
Home
Hareli is the harvest festival of which state?
Assam
Andhra Pradesh
Himachal Pradesh
Chhattisgarh
Assam
In October 2016, who was sacked as the Chairman of the Tata Sons?
Ratan Tata
Narayan Murthy
Cyrus Mistry
Vishal Sikka
Ratan Tata
Which of the following scientists demonstrated that fermentation is caused by the growth of micro-organisms?
Edmund Becquerel
Dmitri Mendeleev
Louis Pasteur
Joseph Priestley
Edmund Becquerel
The line consisting of all the bundles which cost exactly equal to the consumer's income is called the ________ line.
Demand
Utility
Budget
Indifference
Demand
The area under the short run ________ cost curve up to any level of output gives us the total variable cost up to that level.
Average
Marginal
Total
Variable
Average
If price of an article decreases from Rs. 60 to Rs. 50, when quantity demanded increases from 1000 units to 1200 units. Find point elasticity of demand?
-1
1.2
1.5
1.6
-1
Which ratio is the proportion of the total deposits commercial banks keep as reserves?
Cash Reserve
Currency Deposit
Reserve Deposit
Statutory Liquidity
Cash Reserve
Gross Domestic Product + Net factor income from abroad =
Personal income
Personal Disposable Income
Gross National Product
Net National Product at factor cost
Personal income
Which of the following metals is not used as a catalyst in catalytic converts fitted in automobiles?
Platinum
Polonium
Rhodium
Palladium
Platinum
Bio-magnification is well established for which of the following pollutants?
Zinc
Mercury
Copper
Nickel
Zinc
All changes in climate and weather take place in which layer of the atmosphere?
Stratosphere
Mesosphere
Thermosphere
Troposphere
Stratosphere
Which type of electromagnetic radiation converts oxygen into ozone?
Gamma rays
Cosmic rays
Infra-red rays
Ultra-violet rays
Gamma rays
Jan Koum is the cofounder of which startup?
Microsoft
Microsoft
With reference to the interior of the earth consider the following statements.
1] Body waves are generated due to the release of energy at the focus.
2] Denser the material, the lower is the velocity of the Earthquake waves.
3] There are two types of body waves. They are called P and S-waves.
Which of the statements given above is / are correct?
1 and 2 only
2 and 3 only
3 only
1 and 3 only
1 and 2 only
Which of the following is a major tectonic plate?
Cocos plate
Arabian plate
Pacific plate
Nazca plate
Cocos plate
The mean distance between the Sun and the Earth is approximately _____.
99.6 Million Km
49.6 Million Km
149.6 Million Km
199.6 Million Km
99.6 Million Km
The process by which soil deposits through compaction turn into rocks is called _____.
lithification
metamorphication
slatification
petrification
lithification
The Rabi cropping season is from _____.
April – June
June – September
May – August
October – March
April – June
With reference to India's freedom struggle consider the following statements.
1] Gandhi’s first major public appearance was at the opening of the Banaras Hindu University (BHU) in February 1916.
2] During the Great War of 1914 - 18, the French had instituted censorship of the press and permitted detention without trial.
3] Jallianwala Bagh massacre took place in Amritsar in April 1819.
Which of the above statements are right?
1 and 2 only
2 and 3 only
3 only
1 and 3 only
1 and 2 only
By the sixth century BC, _____ had established control over major parts of the Assyrian empire.
Iranians
Greeks
Romans
Mongols
Iranians
Asoka, arguably the most famous ruler of early India, conquered ________, present - day coastal Orissa.
Pataliputra
Prayaga
Taxila
Kalinga
Pataliputra
Ibn Battuta was a ________ who wrote about his travels to India in the fourteenth century.
Persian
Egyptian
Turk
Moroccan
Persian
One of the earliest Bhakti movements were led by the Nayanmars, who were devotees of ________.
Shiva
Vishnu
Surya
Brahma
Shiva
Phonograph was invented by which scientist?
Alexander Graham Bell
Thomas Edison
Jagadish Chandra Bose
George Eastman
Alexander Graham Bell
Consider the following pairs.
Event: Time interval (in Seconds)
1] Period of atomic vibrations:
2] Period of radio wave:
3] Travel time for light from Sun to Earth:
4] Revolution period of the moon:
Which of the above pairs are correctly matched?
1 and 4 only
1 and 2 only
2 and 3 only
2, 3 and 4 only
1 and 4 only
The correct expression for the time period (T) of a particle of mass (m) performing Simple Harmonic Motion, where k is a constant, is ________.
T = 2π√(k/m)
T = 2π(m/k)2
T = 2π(k/m-k)2
T = 2π√(m/k)
T = 2π√(k/m)
Who has a wavelength range of 700 nm to 400 nm?
X - Rays
Visible light
Microwaves
Radio waves
X - Rays
How far should the object be placed from a concave mirror of focal length 4.8 cm, when the image is to be obtained at a distance of 12 cm from the mirror?
8 cm
10 cm
12 cm
15 cm
8 cm
The Institution of the Speaker and his role of the Indian Constitution are borrowed from the _____ constitution.
British
French
Irish
Canadian
British
Which of the following is a characteristic of a Proportional Representation system?
The country is divided into small geographical units called constituencies or districts
Candidate who wins the election may not get majority (50%+1) votes
A party may get more seats than votes in the legislature
Every party gets seats in the legislature in proportion to the percentage of votes that it gets
The country is divided into small geographical units called constituencies or districts
Which of the following is false with reference to the Parliamentary type of executive?
Prime Minister is the head of the Government.
President should be 35 years of age and above.
The President is usually indirectly elected by the people.
President is accountable to the Legislature.
Prime Minister is the head of the Government.
Which of the following subjects is included in the Concurrent List?
Banking
Trade Unions
Agriculture
Police
Banking
Independence of Judiciary means all of the following, except ________.
Executive must not restrain the functioning of the judiciary
Legislature should not interfere with the decision of the judiciary.
Absence of accountability
Judges must be able to perform their functions without fear
Executive must not restrain the functioning of the judiciary
Jwala Gutta is associated with which sport?
Wrestling
Boxing
Badminton
Weightlifting
Wrestling
Who wrote the novel "Angels & Demons"?
Dan Brown
Jonathan Swift
Daniel Defoe
William Shakespeare
Dan Brown
Over two - thirds of all named species on earth are ______.
Porifera
Arthopods
Aschelminthes
Ctenophora
Porifera
Which type of epithelium is made of a single thin layer of flattened cells with irregular boundaries?
Cuboidal
Columnar
Ciliated
Squamous
Cuboidal
Which is the longest bridge in India?
Bandra - Worli Sea Link
Mahatma Gandhi Setu
Vikramshila Setu
Bhupen Hazarika Setu
Bandra - Worli Sea Link
Which of the following is a famous Classical Indian dancer?
Amrita Sher Gil
Satish Gujral
Sonal Mansingh
Bhimsen Joshi
Amrita Sher Gil
Which of the following is a recipient of the "Ashoka Chakra" award?
Abhijeet Gupta
Hangpan Dada
Akhil Kumar
Sunil Chhetri
Abhijeet Gupta
A body is thrown up at an angle of 45° with a velocity of 100 m/sec so as to describe a parabola. Its vertical velocity on point of return down will be
Zero
130 m/sec
50 m/sec
70.7 m/sec
Zero
When the spring of a watch is wound it possess _____.
Heat energy
Kinetic energy
Potential energy
Wound energy
Heat energy
When a body falls freely under gravitational force, it possesses ______.
Maximum weight
Minimum weight
No weight
No effect on its weight
Maximum weight
The apparent weight of a man in moving lift is less than his real weight when it is going down with _____.
Uniform speed
An acceleration
Some linear momentum
Retardation
Uniform speed
A body is thrown vertically upwards with a velocity of 980 cm/sec, then the time the body will take to reach the ground will be
1 second
2 second
2.5 second
4 second
1 second
The figure below shows a weight of 20 kg suspended at one end of the cord and a force of 30 kg applied at the other end of the cord passing over a pulley. Neglecting the weight of the rope and pulley, the tension in the cord will be
30 kg
20 kg
10 kg
50 kg
30 kg
The weights of 2W and W are connected by an inextensible string and rest on two inclined planes, inclined at 30° and 60° respectively as shown in the figure below. Angle ‘α’ will be equal to
30°
cos-1(1/2)
45°
tan-1[(√3)/2)]
30°
Two rectangular blocks of weight ‘W’ each are connected by a flexible cord and rest upon a horizontal and an inclined plane with the cord passing over a pulley as shown in the figure below. If μ is the coefficient of friction for all continuous surfaces, angle ‘θ’ for motion of system to impede will be
tan θ = μ
tan (θ/2) = μ
tan (2θ) = μ
tan θ = 2μ
tan θ = μ
The centre of gravity of a (10 × 15 × 5) cm T section (From bottom) will be
7.5 cm
5.0 cm
8.75 cm
7.85 cm
7.5 cm
In simple harmonic motion, acceleration of a particle is proportional to
Rate of change of velocity
Displacement
Velocity
Direction
Rate of change of velocity
Rate of change of momentum takes place in the direction ______.
Of motion
Of applied force
Opposite to the direction of applied force
Perpendicular to the direction of motion
Of motion
The work done by a body in moving down a smooth inclined plane in comparison to being dropped vertically downwards from same height will be
More
Less
Equal
Zero in both cases
More
Rate of change of momentum is proportional to the
Displacement
Velocity
Acceleration
Impressed force
Displacement
Which of the following have same units?
A. Momentum and impulse
B. Stress and pressure
C. Work and kinetic energy
A lone
B alone
C alone
A, B and C
A lone
A ball is thrown up. The sum of kinetic and potential energies will be maximum at
Ground
Highest point
In the centre while going up
At all points
Ground
Which of the following is not a dimensionless parameter?
Reynolds number
Friction factor
Pressure coefficient
Kinematic viscosity
Reynolds number
The specific speed of a pump is defined as the speed of a unit of such a size that
It delivers unit discharge at unit head
It delivers unit discharge at unit power
It requires unit power per unit head
It produces unit horsepower with unit head
It delivers unit discharge at unit head
The total energy of each particle at various places in the case of perfect incompressible fluid flowing in continuous stream
Keeps on increasing
Keeps on decreasing
Remains constant
May increase or decrease
Keeps on increasing
Pressure intensifier increases the pressure in proportion to _____.
Ratio of diameters
Square of ratio of diameters
Inverse ratio of diameters
Square of inverse ratio of diameters
Ratio of diameters
Normal depth in open channel flow is the depth of flow corresponding to
Steady flow
Unsteady flow
Laminar flow
Uniform flow
Steady flow
Which of the following is not a rotary pump?
Gear
Vane
Screw
Axial
Gear
Venturimeter is used to measure flow of fluids in pipe when pipe is
Horizontal
Vertical, flow downwards
Vertical, flow upwards
In any position
Horizontal
Hydraulic accumulator is used for
Accumulating oil
Supplying large quantities of oil for very short duration
Generally high pressures to operate hydraulic machines
Supplying energy when main supply fails
Accumulating oil
Differential manometer is used to measure
Very low pressure
Pressure in pipes, channels etc
Atmospheric pressure
Difference of pressure between two points
Very low pressure
The total pressure force on a plane area is equal to the area multiplied by the intensity of pressure at the centroid, if
A. The area is horizontal
B. The area is vertical
C. The area in inclined
Only A
Only B
Only C
A, B and C
Only A
A piece weighing 3 kg in air was found to weigh 2.5 kg when submerged in water. Its specific gravity is
1
5
6
7
1
The dimensions of coefficient of viscosity are
M1L-1T-1
M1L1T-1
M-1L1T1
M1L-1T1
M1L-1T-1
A liquid compressed in cylinder has a volume of 0.04 m3 at 50 kg/cm2 and a volume of 0.039 m3 at 150 kg/cm2. The bulk modulus of liquid is
400 kg/cm2
4000 kg/cm2
40 × 105 kg/cm2
40 × 106 kg/cm2
400 kg/cm2
Maximum work is done in compressing air when the compression is ____.
Isothermal
Adiabatic
Polytropic
None of these
Isothermal
Surface tension ____.
Acts in the plane of the interface normally to any line in the surface
Is also known as capillarity
Is a function of the curvature of the interface
Decrease with fall in temperature
Acts in the plane of the interface normally to any line in the surface
In a static fluid, _______.
linear deformation is small
Resistance to shear stress is small
Only normal stress can exist
Fluid pressure is small
linear deformation is small
When a piping system is made up primarily of vertically lift and very little pipe friction, the pump characteristic should be _____.
Horizontal
Nearly horizontal
Steep
First rise and then fall
Horizontal
A block of ice floating over water in a vessel slowly melts in it. The water level in the vessel will
Start rising
Start falling
Will remain constant
Will depend on temperature of water
Start rising
Low specific speed of a pump implies that it is
Centrifugal pump
Mixed flow pump
Axial flow pump
Axial flow pump or mixed flow pump
Centrifugal pump
Which of the following pumps is used for pumping viscous fluids?
Centrifugal pump
Screw pump
Reciprocating pump
Jet pump
Centrifugal pump
An impulse turbine is used for ________.
Low head of water
High head of water
Medium head of water
High discharge
Low head of water
An ideal fluid is
Similar to perfect gas
One which obeys Newtons’ law of viscosity
Frictionless and incompressible
Very viscous
Similar to perfect gas
The ratio of power produced by the turbine to the energy actually supplied to the turbine is called ____.
Mechanical efficiency
Hydraulic efficiency
Overall efficiency
Turbine efficiency
Mechanical efficiency
Laminar flow occurs in pipes, when Reynolds number ______.
Lies between 2000 – 3000
Lies between 3000 – 4000
Is more than 2000
Is less than 2000
Lies between 2000 – 3000
Reaction turbines are used for _____
Low head
High head
High head and low discharge
Low head and high discharge
Low head
Specific speed of hydraulic turbine is dependent upon ____.
Speed, power developed and flow
Speed, power developed and effect head
Speed, head and flow
Speed, mean diameter and head
Speed, power developed and flow
The cavitation in reaction type hydraulic turbines is avoided by
A. Using highly polished blade
B. Using stainless steel runner
C. Running the turbine at designed speed
D. Installing the turbine below the tail race level
Only A
A and B only
B and C only
A, B, C and D
Only A
A hydraulic accumulator normally consists of
Two cylinders, two rams and a storage device
A cylinder and a ram
Two co-axial rams and two cylinders
A cylinder, a piston, storage tank and control valve
Two cylinders, two rams and a storage device
Surface tension of water _____.
Increase with decrease in temperature
Decreases with decrease in temperature
Independent of temperature
None of these
Increase with decrease in temperature
The point in the immersed body through which the resultant pressure of the liquid may be taken to act is known as
Centre of gravity
Centre of buoyancy
Centre of pressure
Metacentre
Centre of gravity
High speed steel should have
A. Wear resistance
B. Hardness
C. Toughness
Only A
Only B
Only C
Both A and B
Only A
18-4-1 high speed steel contains
18% carbon
4% carbon
15% carbon
0.7% carbon
18% carbon
The essential ingredient of any hardened steel is
Austenite
Pearlite
Martensite
Cementite
Austenite
Steel containing 11% to 14% Chromium and 0.35% carbon is called _____.
Martensitic stainless steel
Ferritic stainless steel
Austenitic stain less steel
None of these
Martensitic stainless steel
Steel containing 18% chromium and 8% nickel is called _____.
Martensitic stainless steel
Ferritic stainless steel
Austenitic stainless steel
None of these
Martensitic stainless steel
The ultimate strength of steel in tension in comparison to shear is in the ratio of
1: 1
2: 1
3: 2
2: 3
1: 1
Steel containing pearlite and ferrite is
Tough
Hard
Soft
Ductile
Tough
Steel with carbon below 0.8% is called __________.
Eutectoid steel
Hypo-eutectoid steel
Austenite
Hyper-eutectoid steel
Eutectoid steel
Fluidity is greatly influenced by
Carbon content in molten metal
Pouring temperature of molten metal
Inoculation added
None of these
Carbon content in molten metal
Hardness of steel depends upon amount of
Pearlite
Ferrite
Cementite
Martensite
Pearlite
Which of the following steel key is equally strong in failure by shear and crushing?
Rectangular
Flat
Square
Circular
Rectangular
In the flange coupling the two flanges are coupled together by means of bolts fitted in
reamed holes
machined holes
threaded holes
gasketed holes
reamed holes
The sleeve or muff coupling is designed as a ____.
Thin vessel
Thick vessel
Solid shaft
Hollow shaft
Thin vessel
Metal to metal joint is used for applications subjected to ____.
Very high pressure
Very high temperature
Very high pressure and temperature
Severe vibrations
Very high pressure
What is the addendum of a cycloidal gear tooth?
Cycloid
Involute
Epicycloid
Hypocycloid
Cycloid
Which type of gear will be used for non-parallel and non-intersecting shafts?
Helical gears
Hypoid gears
Spur gears
Herringbone gears
Helical gears
Welding units operate at what power factor?
0.3
0.6
0.8
0.9
0.3
Concentric helical springs should be
Wound in same direction
Wound with opposite hand helices
Could be wound in any direction
Direction of winding depends on the load to be carried
Wound in same direction
In a horizontal flat belt drive, it is customary to use
Bottom side of the belt as slack side during power transmission
Top side of the belt as the slack side
Crossed-belting
Idler in between
Bottom side of the belt as slack side during power transmission
In a V-belt drive, the belt makes contact at ____.
Bottom of pulley
Sides of the groove of pulley
Sides of groove and bottom of pulley
Could make contact anywhere
Bottom of pulley
Which type of chain is used in motorcycle?
Bush roller
Silent
Pintle
Ewast
Bush roller
In an involute gear, the base circle must be ____.
At root circle
Under root circle
Above root circle
Under pitch circle
At root circle
Gear teeth are made harder to avoid
Greater compressive stress in bending
Tensile strength
Abrasion
Wear
Greater compressive stress in bending
The distance between the centres of the rivets in adjacent rows of a zigzag riveted joint is known as _____.
Pitch
Back pitch
Diagonal pitch
Diametric pitch
Pitch
The safe twisting moment for a compound shaft is equal to the ________.
Maximum calculated value
Minimum calculated value
Mean value
Extreme value
Maximum calculated value
What is the usual quantity of free air taken per person in air conditioning system?
1.2 m3/sec
1.2 m3/min
1.2 m3/hour
6 m3/min
1.2 m3/sec
The total emissivity power is defined as the total amount of radiation emitted by a black body per unit
Temperature
Thickness
Area
Time
Temperature
Sensible heat is the heat needed to
Vaporise water into steam and vice versa
Change the temperature of a liquid or vapour
Convert water into steam and superheat it
Measure dew point temperature
Vaporise water into steam and vice versa
The difference between dry bulb and wet bulb temperature increases as _____.
Air becomes wetter
Air becomes drier
Atmospheric temperature rises
Atmospheric temperature decreases
Air becomes wetter
The weight of the water vapour in kg contained in 1 m3 of air-vapour mixture at its total pressure is known as ______.
Degree of saturation
Percent humidity
Humidity ratio
Vapour density
Degree of saturation
Dehumidification is the process of removing moisture from air with dry bulb temperature ______.
Increasing
Decreasing
Remaining constant
Changing in any direction
Increasing
Spray humidifying is the process of adding moisture to the air by passing it through
A. Chiller
B. Air conditioning plant
C. Washers
Only A
Only B
Only C
A or B
Only A
Dew point is _____.
The temperature at which condensation of steam in saturated air will start
The lowest attainable temperature for a mixture of air and steam
Dependent on pressure of air
Used in connection with air conditioning
The temperature at which condensation of steam in saturated air will start
Relative humidity is
Something concerned with air conditioning
The ratio of moisture present in air to the capability of air to hold maximum moisture
The ratio of actual humidity to absolute humidity
Representative of amount of moisture held in air
Something concerned with air conditioning
Cryogenics refers to
refrigeration at low temperate
thermodynamic analysis at low temperature
engineering field concerned with equipment in the range of – 150°C to absolute zero
Refrigeration under vaccum conditions
refrigeration at low temperate
Which of the following refrigerating plants required no electricity?
vapour absorption
vapour compression
air-refrigeration
vortex tube
vapour absorption
A hermetically sealed unit implies ____.
Compressor is sealed
Compressor motor is sealed
Refrigerant cycle sealed
Compressor and motor are sealed
Compressor is sealed
The work required for compression in a closed system increases when the value of ‘n’ (the index of compression) ____.
Increases
Decreases
Remains the same
First increases and then decreases
Increases
The value of entropy at 0 K is taken as
1
0
-1
0.5
1
On a pressure volume diagram, the process line PVn = C (as the value of ‘n’ increases) will _____.
Come closer to y-axis
Come closer to x-axis
Come closer to 45° inclined line
Remain in the same positions
Come closer to y-axis
Calorie is measure of ____.
Specific heat
Quantity of heat
Thermal capacity
Entropy
Specific heat
Kelvin Plank’s law deals with the ____.
Conservation of heat
Conservation of work
Conversion of heat into work
Conservation of work into heat
Conservation of heat
Diesel cycle consists of which four processes?
two isothermal and two isentropic
two isentropic and two constant volumes
two isentropic, one constant volume and one constant pressure
two isentropic and two constant pressures
two isothermal and two isentropic
Gas turbine cycle consists of:
two isothermal and two isentropic
two isentropic and two constant volumes
two isentropic, one constant volume and one constant pressure
two isentropic and two constant pressures
two isothermal and two isentropic
The heat addition in dual combustion cycle is done at ________?
constant pressure
constant volume
partially at constant volume and partially at constant pressure
constant temperature
constant pressure
The concept of regeneration is used in which cycles?
Rankine and Stirling
Stirling and Ericsson
Rankine and Ericsson
Stirling and Brayton
Rankine and Stirling
A high-speed diesel engine theoretically operates on ________?
constant pressure cycle
constant volume cycle
constant temperature cycle
mixed cycle of constant pressure and constant volume
constant pressure cycle
The constant pressure gas turbine works on the ________?
Rankine Cycle
Bell – Coleman cycle
Carnot cycle
Brayton cycle
Rankine Cycle
All diesel engines except slow speed engines use which cycles?
Diesel
Otto
Joule
Mixed dual
Diesel
What does the second law of thermodynamics define?
entropy
enthalpy
heat
work
entropy
Air standard of diesel cycle is dependent upon
A. ratio of specific heats
B. Cut off ratio
C. adiabatic compression ratio
Only A
Only B
Only C
A, B and C
Only A
The saturation temperature of steam with increase in pressure increases _________.
in a linear form (linearly)
rapidly first and then slowly
slowly first and then rapidly
in an inverse form (inversely)
in a linear form (linearly)
A process occurs spontaneously if its entropy _________.
increases
decreases
remains the same
becomes zero
increases
All gases behave ideally under ________.
Vacuum conditions
low pressure conditions
high pressure conditions
high pressure and high temperature conditions
Vacuum conditions
A hot short metal is ________.
brittle when cold
brittle when hot
brittle under all conditions
ductile at high temperature
brittle when cold
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