Question for Indian Coast Guard Assistant Commandant Mechanical 2026 - Quiz / Questions / MCQ

Objective Questions

Latest Indian Coast Guard Assistant Commandant Mechanical Exam Question (Objective Questions), MCQ in English

Subjects : English, Reasoning and Numerical Ability, General Science and Mathematical Aptitude, General Knowledge, Mechanical

Question Bank Indian Coast Guard Assistant Commandant Section 2 (Mechanical) Exam - English

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English

Question 1Single Answer

I go to Madurai by —– Vaigai Express

A
a
B
an
C
some
D
the

Question 2Single Answer

Have the car stolen!

A
Steal the car
B
You should have the stolen car
C
Get someone to steal the car
D
They have stolen the car

Question 3Single Answer

The payment was collected by the hardworking salesman.

A
The hardworking salesman collected the payment.
B
the salesman who worked heard was able to collect the payment.
C
to collect the payment the salesman had to work hard.
D
The hardworking salesman was able to collect the payment.

Question 4Single Answer

I had to stop all my work to complete this project.

A
All other work had to be stopped to complete this project by me
B
For completing this project all other work must be stopped
C
For completing this project I had to stop all my work
D
To complete this project all other work had been stopped by me

Question 5Single Answer

Passage :

Direction : Question below has two blanks, each blank indicting that some thing has been omitted. Choose the word for each blank which best fits the meaning of the sentence as a whole.

The Finance Department has ……………a centralized online databank system for all statutory government bodies to …………an eye on their assets and liabilities.

A
presented , stay
B
introduced , keep
C
announce , make
D
created , let
E
proclaimed , hold

Question 6Single Answer

Passage :

Direction : The five items in this section consists of a word or group of words followed by four words as (a), (b), (c) and (d). Select the word which is nearly opposite to the meaning of the original word or group of words and mark your response as (a), (b), (c) and (d), as the case may be, in your Answer Sheet.

Assets

A
liabilities
B
responsibilities
C
estates
D
profits

Question 7Single Answer

Passage :

Direction : In the question, out of the four alternatives, choose the word which is opposite in meaning to the given word and click the button corresponding to it

Affidavit

A
Affirmation
B
Slander
C
Oath
D
Testimony

Question 8Single Answer

Passage :

Direction: In the following question, out of the four alternatives, choose the word which is opposite in meaning to the given word and click the button corresponding to it

Hollow

A
Alveolate
B
Cleft
C
Cavernous
D
Solid

Question 9Single Answer

Passage :

Directions: In the following question, out of the four alternatives, choose the word which is opposite in meaning to the given word and click the button corresponding to it

Cosset

A
Ignoreb
B
Close
C
Caress
D
Fondle

Question 10Single Answer

Passage :

Directions: In the following question, out of the four alternatives, choose the word which is opposite in meaning to the given word and click the button corresponding to it

Ogle

A
Leer
B
Gaze
C
Ignore
D
Gawk

Reasoning and Numerical Ability

Question 11Single Answer

How many such pairs of letters are there in the word ‘CLEANLINESS’ each of the which has as many letters between them in the word as they have in the English alphabet, in the same sequence?

A
Two
B
Three
C
Five
D
Four
E
None of these

Question 12Single Answer

Team A has scored more goals than Team B
Team C has scored fewer goals than Team B
Team A has scored fewer goals than Team C .
If the first two statements are true, the third statement is

A
True
B
False
C
Uncertain
D
None

Question 13Single Answer

Passage :

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z .

Which letter in this alphabet is the eighth letter to the right of the letter and which is tenth letter to the left of the last but one letter of the alphabet ?

Question 14Single Answer

Passage :

Direction : The following question is based on the five words given below:
AND FOR THE BIG SUM (The new words formed after performing the mentioned operations may or may not necessarily the meaningful English words.)

If the third alphabet of each of the words is changed to the next alphabet in the English alphabetical series, which of the following will form a meaningful English word?

A
SUM
B
BIG
C
Both BIG and THE
D
FOR
E
Both FOR and BIG

Question 15Single Answer

Passage :

Direction : The following question is based on the five words given below:
AND FOR THE BIG SUM (The new words formed after performing the mentioned operations may or may not necessarily the meaningful English words.)

If the given words are arranged in the order as they would appear in a dictionary from left to right, which of the following will be second from the right ?

A
AND
B
FOR
C
THE
D
BIG
E
SUM

Question 16Single Answer

The cash difference between the selling prices of an article at a profit of 4% and 6% is Rs. 3. The ratio of the two selling prices is:__________ ?

A
51:52
B
52:53
C
51:53
D
52:55

Question 17Single Answer

Which of the following numbers is irrational ?

A
√49
B
0.125
C
√2
D
22/7

Question 18Single Answer

356 x 936 – 356 x 836 = ?

A
35600
B
34500
C
9630
D
93600

Question 19Single Answer

Arrange in descending order: 5/8, 7/10, 3/4

A
3/4 > 7/10 > 5/8
B
7/10 > 3/4 > 5/8
C
3/4 > 5/8 > 7/10
D
5/8 > 7/10 > 3/4

Question 20Single Answer

What is (3^{^}{4} times 9^{^}{2}) ?

A
3⁶
B
3⁸
C
3¹⁰
D
9⁶

General Science and Mathematical Aptitude

Question 21Single Answer

The elements of the set {x : x is an integer, x² : 4} can be represent as .....Z..... . Here, Z refers to

A
{–2, 2}
B
{–1, 0, 1}
C
{–2, –1, 0, 1, 2}
D
{0, 1, 2}

Question 22Single Answer

A
B
C
D
None of these

Question 23Single Answer

If Y = {x : x is a positive factor of the number 2p – 1(2p – 1), where 2p – 1 is a prime number}, then Y can be represent in roster form as

A
{2}
B
{1, 2}
C
{1, 2, 22, ....., 2p – 1}
D
{1, 2, 22, 23,.... 2p – 1, (2p – 1)}

Question 24Single Answer

The set {x : x is a positive integer less than 6 and 3x – 1 is an even number} in roster form is

A
{1, 2, 3, 4, 5}
B
{1, 2, 3, 4, 5, 6}
C
{2, 4, 6}
D
{1, 3, 5}

Question 25Single Answer

If A

B and A

B, then

A
A is called a proper subset of B
B
A is called a super set of B
C
A is not a subset of B
D
B is a subset of A

Question 26Single Answer

Temperature can be expressed as derived quantity in terms of

A
length and mass
B
mass and time
C
length, mass and time
D
None of these

Question 27Single Answer

Electron volt is a unit of

A
potential difference
B
charge
C
energy
D
capacity

Question 28Single Answer

Which of the following is not a synthetic fibre:

A
Anygora
B
Rayon
C
Nylon
D
Polyster

Question 29Single Answer

Which of the following contain enzymes for cellular respiration ?

A
Dictyosomes
B
Endoplasmic reticulum
C
lysosomes
D
Mitochondria

Question 30Single Answer

A and B move clockwise around a circle. starting from a common point O. A takes 9 minutes to complete a round but re-starts after a delay of 1 minute. B takes 13 minutes to complete the round but restarts after a delay of 2 minutes. How many minutes after they began would they meet again at O ?

A
30
B
29
C
31
D
28

General Knowledge

Question 31Single Answer

Yojna a weekly journal

A
Ministry of Finance
B
Ministry of Information and Broadcastin
C
Ministry of Rural Development
D
Planning Commission

Question 32Single Answer

Kurukshetra a journal on rural development is published by

A
Ministry of Finance
B
Ministry of Information and Broadcastin
C
Ministry of Rural Development
D
Planning Commission

Question 33Single Answer

Devaluation of a currency means

A
Fixing the value of the currency in conjuction with the movement in the value of a basket of predetermined currencies
B
Reduction in the value of a currency vis-à-vis major internationally traded currencies
C
Fixing the value of currency in multilateral consultaion with the IMF the World Bank and major trading partners
D
Permitting the currency to seek its worth in the international market

Question 34Single Answer

In India rural incomes are generally lower than the urban incomes, which of the following reasons account for this
1. a large number of farmers are illiterate and know little about scientific agriculture
2. prices of primary products are lower than those of manufactured products
3. Investments in agriculture has been low when compared to investment in industry

A
1 and 3
B
2 and 3
C
1 and 2
D
1,2 and 3

Question 35Single Answer

Which of the following programmes aims at the promotion of savings among rural women

A
Rashtriya Mahila Kosh
B
Indira Mahila Yojna
C
Jawahar Rozgar Yojna
D
Mahila Samridhi Yojna

Question 36Single Answer

What is Net National Product

A
the money value of final goods and services produced annually in the economy
B
the money value of annual service generation in the economy
C
the money value of tangible goods produced annually in the economy
D
The money value of tangible goods available in the economy

Question 37Single Answer

Who is known as the "Missile Man of India"?

A
Dr. Homi J. Bhabha
B
Dr. Vikram Sarabhai
C
Dr. APJ Abdul Kalam
D
Dr. Satish Dhawan

Question 38Single Answer

Which organization is responsible for India's space exploration programs?

A
BARC
B
ISRO
C
DRDO
D
HAL

Question 39Single Answer

Which day is observed on October 1, 2025 to promote elderly care and respect?

A
World Heart Day
B
International Day of Older Persons
C
World Habitat Day
D
International Coffee Day

Question 40Single Answer

Which international day is observed on October 1, 2025 to raise awareness about habitat and urban issues?

A
World Habitat Day
B
World Animal Day
C
International Day of Non-Violence
D
World Teachers' Day

Mechanical

Question 41Single Answer

Which of the following is the unit of kinematic viscosity _________________?

A
Pascal
B
Poise
C
Stoke
D
Faraday
E
None of the above

Question 42Single Answer

Consider the following processes:
1. Extension of a spring
2. Plastic deformation of a material
3. Magnetization of a material exhibiting hysteresis
Which of the above process are irreversible?

A
1 and 2 only
B
1 and 3 only
C
1 only
D
1, 2 and 3

Question 43Single Answer

Consider the following motions :
1. Piston reciprocating inside an engine cylinder
2. Motion of a shaft between foot-step bearings
Which of the above can rightly be considered as successfully constrained motion?

A
1 only
B
2 only
C
Both 1 and 2
D
Neither 1 nor 2

Question 44Single Answer

A rotor weighing 2 kN is supported on bearings A and B which are 1 m apart. The centre of mass of the rotor is at a distance 0.4 m from bearing A. It is observed that there is an unbalanced couple of magnitude 300 N-m which leaves the shaft balanced statically.The dynamic reactions at the supports will be

A
800 N and 800 N
B
300 N and 800 N
C
800 N and – 300 N
D
300 N and – 300 N

Question 45Single Answer

A spherical waterdrop of 1 mm in diameter splits up in air into 64 smaller drops of equal size. The surface tension coefficient of water in air is 0.073 N/m. The work required in splitting up the drop is

A
0.96 × 10^–6 J
B
0.69 × 10^–6 J
C
0.32 × 10^–6 J
D
0.23 × 10^–6 J

Question 46Single Answer

Consider the following statements pertaining to stability of floating bodies:
1. A floating body will be stable when the centre of gravity is above the centre of buoyancy.
2. The position of metacentres corresponding to different axes of rotation are generally different for the same floating object.
3. For cargo ships, the metacentric height varies with loading.
Which of the above statements are correct?

A
1, 2 and 3
B
1 and 2 only
C
1 and 3 only
D
2 and 3 only

Question 47Single Answer

A fin will be more effective when Bio number is

A
Greater than 1
B
Equal to 1
C
Between 1 and 3
4 4
D
Less than 1

Question 48Single Answer

A tank of length, breadth and height in the ratio of 2:1:2 is full of water. The ratio of hydrostatic force at the bottom to that at any larger vertical surface is

Question 49Single Answer

Which of the following fluids exhibit a certain shear stress at zero shear strain rate followed by a straight line relationship between shear stress and shear strain rate?

A
Newtonian fluid
B
Ideal Bingham plastic fluids
C
Pseudo-plastic fluids
D
Dilatent fluids

Question 50Single Answer

What is the specific gravity of a marble stone, which weighs 400N in air, and 200N in water? (g=10m/s²)

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Mechanical

Question 51Single Answer

If a submerged body displaced from its equilibrium position, returns to its original position, it is called __________.

A
thermal equilibrium
B
neutral equilibrium
C
unstable equilibrium
D
stable equilibrium

Question 52Single Answer

In a flow measurement, a venturi meter is preferred over an orifice plate because _____.

A
energy of head loss is less
B
It is cheaper
C
pressure drop is more
D
space is limited

Question 53Single Answer

Pitot tube measures ______.

A
dynamic pressure of a moving stream
B
guage pressure
C
temperature of moving water
D
pressure difference between two fluids

Question 54Single Answer

Which of the following is not a property of an ideal fluid ?

A
flow is irrotational
B
it has no viscosity
C
it has viscosity
D
it is incompressible

Question 55Single Answer

Nozzle used in steam turbines convert ________.

A
enthalpy of steam into work
B
enthalpy of steam into kinetic energy
C
enthalpy of steam into pressure energy
D
pressure energy into work

Question 56Single Answer

Which of the following assumptions is the most relevant in air-standard cycle analysis ?

A
All the processes within the cycle are irreversible
B
Working fluid is a fixed mass
C
Specific heat of air changes during the cycle
D
Cycle is assumed to be an open cycle

Question 57Single Answer

The modern Francis turbine is a ___________flow turbine .

A
tangential
B
axial
C
radial
D
mixed

Question 58Single Answer

Variation of stress with strain rate for a Newtonian fluid is ______ .

A
hyperbolic
B
linear
C
elliptical
D
parabolic

Question 59Single Answer

Which of the following is NOT a part of refrigeration systems ?

A
Turbine
B
Evaporator
C
Compressor
D
Condenser

Question 60Single Answer

Which of the following is NOT an intensive property ?

A
Temperature
B
Total volume
C
Pressure
D
Density

Question 61Single Answer

What is the state of a substance at the critical point on a phase diagram?

A
Solid
B
Liquid
C
Gas
D
Indistinguishable liquid-vapor phase

Question 62Single Answer

What does the triple point on a phase diagram represent?

A
Only solid exists
B
Solid, liquid, and vapor coexist
C
Only liquid exists
D
Only vapor exists

Question 63Single Answer

Which property is constant during a phase change at constant pressure?

A
Temperature
B
Volume
C
Entropy
D
Internal energy

Question 64Single Answer

What is the quality of a saturated liquid-vapor mixture defined as?

A
Ratio of liquid mass to total mass
B
Ratio of vapor mass to total mass
C
Ratio of liquid volume to total volume
D
Ratio of vapor volume to total volume

Question 65Single Answer

What is the specific volume of a substance in the saturated liquid state?

A
vf
B
vg
C
vfg
D
vavg

Question 66Single Answer

Which chart is used to represent the properties of a superheated vapor?

A
T-s diagram
B
P-v diagram
C
Mollier diagram
D
Psychrometric chart

Question 67Single Answer

What happens to the pressure of a substance at the triple point of water?

A
It is zero
B
It is kPa
C
Resolver
D
It is infinite

Question 68Single Answer

What is the slope of the sublimation curve on a P-T diagram?

A
Zero
B
Negative
C
Positive
D
Infinite

Question 69Single Answer

Which property is used to determine the state of a substance in a compressed liquid region?

A
Entropy
B
Specific volume
C
Quality
D
Enthalpy

Question 70Single Answer

Which diagram shows constant pressure lines as horizontal?

A
P-v diagram
B
T-s diagram
C
h-s diagram
D
P-T diagram

Question 71Single Answer

What is the specific enthalpy of a saturated liquid-vapor mixture given by?

A
hf + x(hfg)
B
hg + x(hfg)
C
hf + hfg
D
hg - hfg

Question 72Single Answer

What does the saturation dome represent on a T-s diagram?

A
Superheated region
B
Compressed liquid region
C
Two-phase region
D
Critical point

Question 73Single Answer

What is the critical temperature of water?

A
Hall effect sensor
B
Piezoelectric accelerometer
C
Optical encoder
D
Resolver

Question 74Single Answer

What is the critical pressure of water?

A
kPa
B
Resolver
C
MPa
D
Resolver

Question 75Single Answer

Which property is tabulated in steam tables for superheated vapor?

A
Quality
B
Specific volume
C
Latent heat
D
Phase fraction

Question 76Single Answer

What is the specific entropy of a saturated liquid denoted as?

A
sf
B
sg
C
sfg
D
savg

Question 77Single Answer

What is the value of hfg in the superheated vapor region?

A
Zero
B
Positive
C
Negative
D
Undefined

Question 78Single Answer

Which process occurs along the saturation line on a P-v diagram?

A
Isothermal
B
Isobaric
C
Isochoric
D
Adiabatic

Question 79Single Answer

What is the specific volume of a saturated vapor denoted as?

A
vf
B
vfg
C
vg
D
vavg

Question 80Single Answer

What is the slope of the vaporization curve on a P-T diagram?

A
Zero
B
Positive
C
Negative
D
Infinite

Question 81Single Answer

The moment of a force about a point is equal to:

A
Force × Time
B
Force × Distance from point
C
Force × Area
D
Force ÷ Distance

Question 82Single Answer

Which of the following statements is true?

A
A particle has mass but no dimensions.
B
A rigid body can deform under load.
C
A force cannot be represented by a vector.
D
Varignon’s theorem applies only to particles.

Question 83Single Answer

Varignon’s theorem states that the moment of a force about any point is equal to:

A
The algebraic sum of the moments of the components
B
Twice the product of the force and distance
C
Half the sum of the components
D
Product of mass and acceleration

Question 84Single Answer

A rigid body is in equilibrium when:

A
Net force
B
Net moment
C
Net force and net moment
D
Either net force or net moment

Question 85Single Answer

Which of the following is not a type of force system?

A
Concurrent
B
Parallel
C
Non-concurrent
D
Perpendicular

Question 86Single Answer

The unit of moment is:

A
N
B
N/m
C
N•m
D
m/N

Question 87Single Answer

In a force diagram, the direction of a force is represented by:

A
Length of the arrow
B
Angle of the arrow
C
Thickness of the arrow
D
Color of the arrow

Question 88Single Answer

A free body diagram shows:

A
Internal forces
B
Only horizontal forces
C
All external forces acting on a body
D
Only vertical forces

Question 89Single Answer

The resultant of two equal forces acting at right angles is:

A
Equal to one of the forces
B
times one force
C
Twice one force
D
Zero

Question 90Single Answer

The force which keeps a body in equilibrium is:

A
Resultant
B
Balanced force
C
Equilibrant
D
Reaction

Question 91Single Answer

The line of action of a force is:

A
Always horizontal
B
The direction along which the force acts
C
The area covered by the force
D
A vertical axis

Question 92Single Answer

The moment of a couple is:

A
Zero
B
Equal to the sum of the forces
C
Equal to one of the forces
D
Equal to the force × arm distance

Question 93Single Answer

The direction of a moment is given by:

A
Lami’s theorem
B
Right-hand rule
C
Newton’s third law
D
Triangle law

Question 94Single Answer

A couple produces:

A
Translational motion only
B
Rotational motion only
C
Both translational and rotational motion
D
No motion

Question 95Single Answer

Which of the following cannot be in equilibrium?

A
Rigid body
B
Particle
C
Free body
D
Couple

Question 96Single Answer

For a system in equilibrium, the net torque about any axis is:

A
Maximum
B
Minimum
C
Zero
D
Infinite

Question 97Single Answer

Two equal and opposite forces acting along the same line form a:

A
Couple
B
Balanced force
C
Resultant
D
Null vector

Question 98Single Answer

Friction is a:

A
Non-contact force
B
Contact force
C
Magnetic force
D
Electrostatic force

Question 99Single Answer

The limiting friction is the:

A
Minimum frictional force before motion
B
Maximum static friction just before motion
C
Kinetic friction value
D
Average friction during motion

Question 100Single Answer

The coefficient of friction is defined as the ratio of:

A
Normal force to limiting friction
B
Applied force to normal force
C
Limiting friction to normal force
D
Weight to frictional force

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Latest Indian Coast Guard Assistant Commandant Mechanical Exam Question (Objective Questions), MCQ in English

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Reasoning and Numerical Ability

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