IC Engines and Nuclear Power Plants MCQs

Welcome to our comprehensive collection of Multiple Choice Questions (MCQs) on IC Engines and Nuclear Power Plants, a fundamental topic in the field of Mechanical Engineering. Whether you're preparing for competitive exams, honing your problem-solving skills, or simply looking to enhance your abilities in this field, our IC Engines and Nuclear Power Plants MCQs are designed to help you grasp the core concepts and excel in solving problems.

In this section, you'll find a wide range of IC Engines and Nuclear Power Plants mcq questions that explore various aspects of IC Engines and Nuclear Power Plants problems. Each MCQ is crafted to challenge your understanding of IC Engines and Nuclear Power Plants principles, enabling you to refine your problem-solving techniques. Whether you're a student aiming to ace Mechanical Engineering tests, a job seeker preparing for interviews, or someone simply interested in sharpening their skills, our IC Engines and Nuclear Power Plants MCQs are your pathway to success in mastering this essential Mechanical Engineering topic.

Note: Each of the following question comes with multiple answer choices. Select the most appropriate option and test your understanding of IC Engines and Nuclear Power Plants. You can click on an option to test your knowledge before viewing the solution for a MCQ. Happy learning!

So, are you ready to put your IC Engines and Nuclear Power Plants knowledge to the test? Let's get started with our carefully curated MCQs!

IC Engines and Nuclear Power Plants MCQs | Page 4 of 24

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Q31.
Ordinary water is sometimes used as moderator when enriched uranium is used as a fuel in nuclear power plants.

a.

Yes

b.

No

c.

Can't say

d.

None of these

Discuss
Answer: (a).Yes
Q32.
The compensating jet in a carburettor supplies almost constant amount of petrol at all speeds because the

a.

jet area is automatically varied depending on the suction

b.

the flow from the main jet is diverted to the compensating jet with increase in speed

c.

the diameter of the jet is constant and the discharge coefficient is invariant

d.

flow is produced due to the static head in the float chamber

Discuss
Answer: (d).flow is produced due to the static head in the float chamber
Q33.
The effective inhibitor of pre-ignition is

a.

alcohol

b.

water

c.

lead

d.

none of these

Discuss
Answer: (b).water
Q34.
The purpose of testing an internal combustion engine is

a.

to determine the information, which can not be obtained by calculations

b.

to conform the data used in design, the validity of which may be doubtful

c.

to satisfy the customer regarding the performance of the engine

d.

all of the above

Discuss
Answer: (d).all of the above
Q35.
The thermal efficiency of diesel engines is about

a.

15%

b.

30%

c.

50%

d.

70%

Discuss
Answer: (d).70%
Q36.
The brake power of a diesel engine, keeping other parameters constant, can be increased by

a.

decreasing the density of intake air

b.

increasing the temperature of intake air

c.

increasing the pressure of intake air

d.

decreasing the pressure of intake air

Discuss
Answer: (c).increasing the pressure of intake air
Q37.
In diesel engines, the fuel is injected in the form of very fine spray, into the engine cylinder, which gets ignited due to high temperature of the compressed air.

a.

Agree

b.

Disagree

c.

Can't say

d.

None of these

Discuss
Answer: (a).Agree
Q38.
Pre-ignition is caused by the spontantaneous combustion of the mixture before the end of the compression stroke, and is due to

a.

cylinder walls being too hot

b.

overheated spark plug points

c.

red hot carbon deposits on cylinder walls

d.

any one of these

Discuss
Answer: (d).any one of these
Q39.
The expansion of fuel in a four stroke cycle diesel engine

a.

starts at 15° before top dead centre and ends at 30° after top dead centre

b.

starts at top dead centre and ends at 30° after top dead centre

c.

starts at 15° after top dead centre and ends at 30° before bottom dead centre

d.

may start and end anywhere

Discuss
Answer: (c).starts at 15° after top dead centre and ends at 30° before bottom dead centre
Q40.
The object of supercharging the engine is

a.

to reduce mass ofthe engine per brake power

b.

to reduce space occupied by the engine

c.

to increase the power output of an engine when greater power is required

d.

all ofthe above

Discuss
Answer: (d).all ofthe above
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