Question for NRL Graduate Engineer Trainee 2026 - Quiz / Questions / MCQ

Objective Questions

Latest NRL GET Exam Question (Objective Questions), MCQ in English

Subjects : Professional Knowledge (Mechanical), General Knowledge/ Current Affairs, English language, Reasoning & Numerical Ability

Question Bank NRL GET Exam (Mechanical) - English

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Professional Knowledge (Mechanical)

Question 1Single 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 2Single 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 3Single Answer

Which of the following statements are correct for a throttling process?
1. It is an adiabatic steady flow process
2. The enthalpy before and after throttling is same
3. In the processes, due to fall in pressure, the fluid velocity at outlet is always more than inlet velocity

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

Question 4Single Answer

A Reversed Carnot Engine removes 50 kW from a heat sink. The temperature of the heat sink is 250 K and the temperature of the heat reservoir is 300 K. The power required of the engine is

A
10 kW
B
20 kW
C
30 kW
D
50 kW

Question 5Single Answer

A heat engine receives heat at the rate of 2500 kJ/min and gives an output of 12.4 kW. Its thermal efficiency is, nearly

A
18%
B
23%
C
26%
D
30%

Question 6Single Answer

One reversible heat engine operates between 1000 K and T₂ K and another reversible heat engine operates between T₂K and 400 K. If both the engines have the same heat input and output, then the temperature T₂must be equal to

A
582.7 K
B
632.5 K
C
682.8 K
D
732.5 K

Question 7Single Answer

Consider the following statements for isothermal process:
1. Change in internal energy is zero
2. Heat transfer is zero
Which of the above statements is/are correct?

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

Question 8Single Answer

A system of 100 kg mass undergoes a process in which its specific entropy increases from 0.3 kJ/kg K to 0.4 kJ/kg K. At the same time, the entropy of the surroundings decreases from 80 kJ/K to 75 kJ/K. The process is:

A
Reversible and isothermal
B
Irreversible
C
Reversible only
D
Isothermal only

Question 9Single Answer

Which one of the following statements is correct during adiabatic charging of an ideal gas into an empty cylinder from a supply main?

A
The specific enthalpy of the gas in the supply main is equal to the specific enthalpy of the gas in the cylinder
B
The specific enthalpy of the gas in the supply main is equal to the specific internal energy of the gas in the cylinder
C
The specific internal energy of the gas in the supply main is equal to the specific enthalpy of the gas in the cylinder
D
The specific internal energy of the gas in the supply main is equal to the specific internal energy of the gas in the cylinder

Question 10Single Answer

Consider the following systems :
1. An electric heater
2. A gas turbine
3. A reciprocating compressor
The steady flow energy equation can be applied to which of the above systems?

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

Question 11Single 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 12Single 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 13Single Answer

A cam is a mechanical member used to impart a desired motion to a follower by direct contact. Which one of the under-listed follower motion types will produce the least jerk to the system?

A
Simple harmonic
B
Constant acceleration and deceleration
C
Constant velocity
D
Cycloidal

Question 14Single Answer

In a circular are cam with a roller follower, acceleration of the follower depends on
1. cam speed and location of centre of circular arc
2. roller diameter and radius of circular arc
Which of the above is/are correct?

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

Question 15Single Answer

A manufacturing company is selling a product for 15 per unit with variable cost of 10 per unit. The fixed cost of the asset is 50,000. How many units should be produced to breakeven?

A
2000
B
5000
C
8000
D
10000

Question 16Single Answer

Hot wire anemometer is used to measure_______________?

A
discharge
B
velocity of gas
C
pressure intensity of gas
D
pressure intensity of liquid

Question 17Single Answer

A gear of 28 cm pitch circle diameter has 40 teeth. The circular pitch will nearly be

A
11 mm/tooth
B
22 mm/tooth
C
33 mm/tooth
D
44 mm/tooth

Question 18Single Answer

Consider the following statements regarding gear tooth designing for gear drive :
1. Tooth profiles not designed as per ‘law of gearing’ will cause vibration and impact problems even at low speed.
2. As the gears go through their mesh, the pitch point must remain stationary on the line of centres.
3. In a correctly designed tooth profile, the line of action of successive instantaneous points of contact will pass through the stationary pitch point.
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 19Single Answer

The flywheel of a steam engine has a radius of gyration of 1 m and mass 2000 kg. The starting torque of the engine is 2000 N-m. The kinetic energy of the flywheel after 10 seconds from start is

A
75 kN-m
B
100 kN-m
C
125 kN-m
D
150 kN-m

Question 20Single Answer

Consider two shafts connected with two gears as per the following options :
1. One on each shaft.
2. Through an intermediate gear mounted on an intermediate shaft, and every shaft having one gear only.
3. Through an intermediate gear mounted on an intermediate shaft having two gears, whereas the other shafts have one gear each
Which of the above represent(s) a simple gear train?

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

Question 21Single 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 22Single 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 23Single Answer

Water is coming out from a tap and falls vertically downwards. At the tap opening, the stream diameter is 20 mm with uniform velocity of 2 m/s. Assuming steady inviscid flow, constant pressure atmosphere everywhere, and neglecting curvature and surface tension effects, the diameter of the stream 0.5 m below the tap opening is nearly

A
11.7 mm
B
14.6 mm
C
17.5 mm
D
20.4 mm

Question 24Single Answer

Consider the following statements:
1. At low Reynolds numbers of any flow, viscous forces dominate over inertial forces.
2. Transition from laminar to turbulent flow occurs over a range of Reynolds numbers depending on the surface presented to the flow.
Which of the above statements is/are correct?

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

Question 25Single Answer

In a steady laminar flow of a given discharge through a circular pipe of diameter D, the head loss is proportional to

A
D^–1
B
D^–2
C
D^–3
D
D^–4

Question 26Single Answer

The centre-line velocity in a pipe flow is 2m/s. What is the average flow velocity in the pipe if the Reynolds number of the flow is 800?

A
2 m/s
B
1.5 m/s
C
1 m/s
D
0.5 m/s

Question 27Single Answer

During a constant pressure expansion of a gas, 33.3% heat is converted into work while the temperature rises by 20 K. The specific heat of the gas at constant pressure as a proportion of work, W is

A
8%
B
10%
C
12%
D
15%

Question 28Single Answer

A
reversible and isothermal
B
irreversible
C
reversible only
D
isothermal only

Question 29Single Answer

A reversible heat engine rejects 80% of the heat supplied during a cycle of operation. If the engine is reversed and operates as a refrigerator, then its coefficient of performance shall be

Question 30Single Answer

For the same efficiency of the Brayton cycle and the Carnot cycle working between temperature limits of T_max and T_min, the power contribution of the Brayton cycle will be

A
zero
B
maximum
C
minimum
D
50% of the Carnot cycle

Question 31Single 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 32Single 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 33Single 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 34Single Answer

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

Question 35Single Answer

What is the intensity of pressure in the following SI units, when specific gravity of mercury is 13.6 and the intensity of pressure is 400KPa ?

A
0.3 bar or 4.077m of water or 0.29 mm of Hg
B
4 bar or 5.077m of water or 0.399 mm of Hg
C
0.3 bar or 5.077m of water or 0.599 mm of Hg
D
4 bar or 4.077m of water or 0.299 mm of Hg

Question 36Single Answer

Consider the following statements:
1.If a small upward displacement is given to a floating body, it results in the reduction of the buoyant force acting on the body
2.A slight horizontal displacement does not change either the magnitude or the location of the buoyant force
Which of the above statements is/are correct?

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

Question 37Single Answer

State whether following flow field is physically possible?

A
Possible for steady, incompressible flow
B
Possible for unsteady, incompressible flow
C
Possible for steady, compressible flow
D
Not Possible

Question 38Single Answer

In a differential manometer, a head of 0.5 m of fluid A in limb 1 is found to balance a head of 0.3 m of fluid B in limb 2. The atmospheric pressure is 760 mm of mercury. The ratio of specific gravities of A to B is

A
0.25
B
0.26
C
2
D
4

Question 39Single Answer

A Reversed Carnot Engine removes 50 kW from a heat sink. The temperature of the heat sink is 250 K and the temperature of the heat reservoir is 300 K. The power required of the engine is

A
10 kW
B
20 kW
C
30 kW
D
50 kW

Question 40Single Answer

On which of the following just in time manufacturing philosophy emphasizes ?

A
man power
B
profit
C
inventory
D
manufacturing

Question 41Single 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 42Single 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 43Single 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 44Single 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 45Single 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 46Single 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 47Single Answer

The modern Francis turbine is a ___________flow turbine .

A
tangential
B
axial
C
radial
D
mixed

Question 48Single Answer

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

A
hyperbolic
B
linear
C
elliptical
D
parabolic

Question 49Single Answer

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

A
Turbine
B
Evaporator
C
Compressor
D
Condenser

Question 50Single Answer

Which of the following is NOT an intensive property ?

A
Temperature
B
Total volume
C
Pressure
D
Density

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Professional Knowledge (Mechanical)

Question 51Single Answer

What is the primary purpose of instrumentation in industrial settings?

A
To manage raw materials
B
To monitor and control processes
C
To manage human resources
D
To generate electrical power

Question 52Single Answer

Which of the following is NOT a type of measuring instrument?

A
Thermocouple
B
Pressure gauge
C
Hydraulic pump
D
Flow meter

Question 53Single Answer

Which type of instrument is used to measure temperature?

A
Thermometer
B
Barometer
C
Manometer
D
Caliper

Question 54Single Answer

What does a pressure transducer measure?

A
Force
B
Velocity
C
Pressure
D
Temperature

Question 55Single Answer

A flow meter is used to measure which of the following?

A
Volume of liquid or gas
B
Weight of solid materials
C
Temperature of gases
D
Velocity of sound

Question 56Single Answer

What is the key function of control instruments in industrial systems?

A
To maintain a steady supply of raw materials
B
To ensure operational parameters stay within the desired limits
C
To create power for machinery
D
To store data for future use

Question 57Single Answer

Which of the following instruments is used to measure humidity?

A
Hygrometer
B
Manometer
C
Thermocouple
D
Pyrometer

Question 58Single Answer

Which of the following types of instruments is commonly used for temperature measurement in an industrial process?

A
Pressure gauge
B
Pyrometer
C
Tachometer
D
Flow transmitter

Question 59Single Answer

What is the primary purpose of an instrument calibration?

A
To adjust the instrument’s appearance
B
To ensure accurate and reliable measurements
C
To increase the instrument's resistance to wear
D
To increase the lifespan of the instrument

Question 60Single Answer

Which of the following instruments is used to measure electrical resistance?

A
Ohmmeter
B
Ammeter
C
Voltmeter
D
Wattmeter

Question 61Single Answer

What is the primary focus of electronics?

A
Only electrical systems
B
The study of circuits and devices that control the flow of electrons
C
Only mechanical devices
D
Fluid mechanics

Question 62Single Answer

Which of the following is NOT a field in which electronics is used?

A
Communications
B
Medical technology
C
Textiles
D
Automation

Question 63Single Answer

Which of the following devices is used to control the flow of current in an electronic circuit?

A
Resistor
B
Capacitor
C
Diode
D
Transistor

Question 64Single Answer

What is the significance of semiconductors in electronics?

A
They conduct electricity only in specific conditions
B
They are perfect conductors of electricity
C
They do not conduct electricity at all
D
They act as insulators

Question 65Single Answer

Which electronic component is primarily used to store energy in an electric field?

A
Resistor
B
Capacitor
C
Inductor
D
Diode

Question 66Single Answer

Which of the following is an example of a passive component in electronics?

A
Transistor
B
Diode
C
Capacitor
D
Integrated circuit

Question 67Single Answer

What is the role of diodes in electronic circuits?

A
To amplify signals
B
To store electrical energy
C
To allow current to flow in one direction only
D
To generate alternating current

Question 68Single Answer

What is the primary function of an integrated circuit (IC)?

A
To resist electrical flow
B
To amplify signals
C
To combine multiple components into a single package
D
To store energy

Question 69Single Answer

In electronics, what does the term “power” generally refer to?

A
The amount of current in a circuit
B
The energy consumed by a device per unit time
C
The resistance in a circuit
D
The voltage difference across a component

Question 70Single Answer

Which of the following is a key principle in electronics?

A
Voltage is constant across all components
B
Resistance always increases in parallel circuits
C
The flow of current is opposed by resistors
D
Capacitors resist voltage changes

Question 71Single Answer

What is an ideal fluid?

A
A fluid that is incompressible and has zero viscosity.
B
A fluid that is compressible and has zero viscosity.
C
A fluid that is incompressible and has high viscosity.
D
A fluid that is compressible and has high viscosity.

Question 72Single Answer

What is a real fluid?

A
A fluid that is incompressible and has zero viscosity.
B
A fluid that is compressible and has zero viscosity.
C
A fluid that has viscosity and may be compressible.
D
A fluid that is always incompressible.

Question 73Single Answer

What are Newtonian fluids?

A
Fluids that obey Newton's law of viscosity.
B
Fluids that do not obey Newton's law of viscosity.
C
Fluids that are incompressible.
D
Fluids that are compressible.

Question 74Single Answer

What are Non-Newtonian fluids?

A
Fluids that obey Newton's law of viscosity.
B
Fluids that do not obey Newton's law of viscosity.
C
Fluids that are incompressible.
D
Fluids that are compressible.

Question 75Single Answer

What is the SI unit of mass density?

A
kg/m³
B
N/m²
C
kg/m²
D
N/m³

Question 76Single Answer

What is the SI unit of specific weight?

A
kg/m³
B
N/m²
C
N/m³
D
kg/m²

Question 77Single Answer

What is the SI unit of specific volume?

A
m³/kg
B
kg/m³
C
N/m²
D
N/m³

Question 78Single Answer

What is specific gravity?

A
The ratio of the density of a substance to the density of water.
B
The weight of a substance per unit volume.
C
The mass of a substance per unit volume.
D
The force per unit area exerted by a fluid.

Question 79Single Answer

What is viscosity?

A
The resistance of a fluid to flow.
B
The weight of a fluid per unit volume.
C
The compressibility of a fluid.
D
The surface tension of a fluid.

Question 80Single Answer

What is the SI unit of viscosity?

A
Pascal-second (Pa.s)
B
Newton-meter (N.m)
C
Kilogram per cubic meter (kg/m³)
D
Newton per square meter (N/m²)

General Knowledge/ Current Affairs

Question 81Single Answer

Yojna a weekly journal

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

Question 82Single Answer

Sattriya dance form is famous in which of these states ?

A
Assam
B
Himachal Pradesh
C
Punjab
D
Tamil Nadu

Question 83Single Answer

"Who said, 'India was a parrot unto itself'?

A
Malik Muhammad Joyce
B
Raskhan
C
Rich Khusrow
D
Rich Hasan

Question 84Single Answer

Which is the national game of Bhutan ?

A
badminton
B
basketball
C
football
D
archery

Question 85Single Answer

When was the Constituent Assembly of India formed?

A
1946
B
1947
C
1948
D
1950

Question 86Single Answer

Who is known as the "Father of the Indian Renaissance" ?

A
Raja Ram Mohan Roy
B
Swami Vivekananda
C
Rabindranath Tagore
D
Mahatma Gandhi

Question 87Single Answer

What is the study of ethics primarily concerned with ?

A
Economic behavior
B
Human values and moral principles
C
Physical health
D
Political systems

Question 88Single Answer

Which is the longest river in India?

A
Yamuna
B
Ganges
C
Brahmaputra
D
Godavari

Question 89Single Answer

Which Indian state launched the ‘Green Energy Villages’ initiative in 2025 to promote renewable energy?

A
Uttar Pradesh
B
Rajasthan
C
Tamil Nadu
D
Gujarat

Question 90Single Answer

Which organization developed the K-6 hypersonic Submarine-Launched Ballistic Missile (SLBM) tested in 2025?

A
ISRO
B
HAL
C
Bharat Dynamics Limited
D
DRDO

English language

Question 91Single Answer

I go to Madurai by —– Vaigai Express

A
a
B
an
C
some
D
the

Question 92Single 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 93Single 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 94Single 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 95Single 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

Reasoning & Numerical Ability

Question 96Single 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 97Single 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 98Single 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 99Single 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 100Single Answer

Passage :

information given below and answer the question that follow.
The result of an exam is given below. Out of 1000 students who appeared
(i) 658 failed in Physics
(ii) 166 failed in Physics and Chemistry
(iii) 372 failed in Chemistry, 434 failed in Physics and Maths
(iv) 590 failed in Maths, 126 failed in Maths & Chemistry
Find the number of people who failed in (assuming that none is passed in all subjects.

We have the following equations:
a+ b + c + d + e + f + g = 1000
a + b + d + e = 658, b + d = 166
b + d + c + f = 372
d + e = 434 as in the figure.
d + e + f + g = 590, d + f = 126. Find the values

Chemistry but not in Physics.

A
318
B
198
C
213
D
206

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Latest NRL GET Exam Question (Objective Questions), MCQ in English

Professional Knowledge (Mechanical)

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Professional Knowledge (Mechanical)

General Knowledge/ Current Affairs

English language

Reasoning & Numerical Ability

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