Diesel Engine and Gas Turbine Power Plants MCQs

Welcome to our comprehensive collection of Multiple Choice Questions (MCQs) on Diesel Engine and Gas Turbine Power Plants, a fundamental topic in the field of Power Plant Engineering. Whether you're preparing for competitive exams, honing your problem-solving skills, or simply looking to enhance your abilities in this field, our Diesel Engine and Gas Turbine 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 Diesel Engine and Gas Turbine Power Plants mcq questions that explore various aspects of Diesel Engine and Gas Turbine Power Plants problems. Each MCQ is crafted to challenge your understanding of Diesel Engine and Gas Turbine Power Plants principles, enabling you to refine your problem-solving techniques. Whether you're a student aiming to ace Power Plant Engineering tests, a job seeker preparing for interviews, or someone simply interested in sharpening their skills, our Diesel Engine and Gas Turbine Power Plants MCQs are your pathway to success in mastering this essential Power Plant Engineering topic.

Note: Each of the following question comes with multiple answer choices. Select the most appropriate option and test your understanding of Diesel Engine and Gas Turbine 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 Diesel Engine and Gas Turbine Power Plants knowledge to the test? Let's get started with our carefully curated MCQs!

Diesel Engine and Gas Turbine Power Plants MCQs | Page 2 of 5

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Q11.
The object of supercharging the engine is __________

a.

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

b.

to reduce mass of the engine per brake power

c.

to reduce space occupied by the engine

d.

all of the mentioned

Discuss
Answer: (d).all of the mentioned
Q12.
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.

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

d.

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

Discuss
Answer: (c).flow is produced due to the static head in the float chamber
Q13.
The ratio of the volume of charge admitted at N.T.P. to the swept volume of the piston is called?

a.

overall efficiency

b.

mechanical efficiency

c.

relative efficiency

d.

volumetric efficiency

Discuss
Answer: (d).volumetric efficiency
Q14.
A moderator generally used in nuclear power plants is?

a.

heavy water

b.

concrete

c.

graphite & concrete

d.

graphite

Discuss
Answer: (c).graphite & concrete
Q15.
In a diesel engine, the duration between the time of injection and ignition is known as?

a.

delay period

b.

period of ignition

c.

burning period

d.

pre-ignition period

Discuss
Answer: (a).delay period
Q16.
Nuclear Reactors are used __________

a.

to produce heat for thermoelectric power

b.

to propel ships, submarines, aircrafts

c.

to produce fissionable material

d.

all of the mentioned

Discuss
Answer: (d).all of the mentioned
Q17.
Where reactor operation is designed with fast neutrons such as in reactors using highly enriched fuel, the moderator used is?

a.

Carbon dioxide

b.

Heavy Water

c.

Graphite

d.

No moderator is needed

Discuss
Answer: (d).No moderator is needed
Q18.
The expansion of fuel in a four stroke cycle diesel engine __________

a.

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

b.

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

c.

may start and end anywhere

d.

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

Discuss
Answer: (a).starts at 15° after top dead centre and ends at 30° before bottom dead centre
Q19.
A moderator, in nuclear power plants, is a medium introduced into the fuel mass in order to __________

a.

slow down the speed of fast moving neutrons

b.

control the reaction

c.

reduce the temperature

d.

extract heat from nuclear reaction

Discuss
Answer: (a).slow down the speed of fast moving neutrons
Q20.
The thermal efficiency of diesel engines is about __________

a.

30%

b.

15%

c.

50%

d.

70%

Discuss
Answer: (d).70%
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