Analysis of Steam Engine MCQs

Welcome to our comprehensive collection of Multiple Choice Questions (MCQs) on Analysis of Steam Engine, 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 Analysis of Steam Engine 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 Analysis of Steam Engine mcq questions that explore various aspects of Analysis of Steam Engine problems. Each MCQ is crafted to challenge your understanding of Analysis of Steam Engine 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 Analysis of Steam Engine MCQs are your pathway to success in mastering this essential Power Plant Engineering topic.

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Analysis of Steam Engine MCQs | Page 5 of 27

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Q41.
A simple Brayton cycle has a pressure ratio of 5 and a maximum temperature of 900 K. Air enters the compressor at 100 kPa, 300 K. Based upon cold-air standard analysis assumptions, the back-work ratio of this cycle is?

a.

0.23

b.

0.53

c.

0.48

d.

0.36

Discuss
Answer: (b).0.53
Q42.
Which of the following methods can be used to increase efficiency of a Brayton cycle?

a.

Regeneration

b.

Increasing pressure ratio

c.

Heat exchanger

d.

All of the mentioned

Discuss
Answer: (d).All of the mentioned
Q43.
For the same maximum pressure and heat input, the most efficient cycle is?

a.

Brayton cycle

b.

Carnot cycle

c.

Rankine cycle

d.

Dual cycle

Discuss
Answer: (a).Brayton cycle
Q44.
The compression ratio is the ratio of ____________

a.

Swept volume to total volume

b.

Total volume to swept volume

c.

Total volume to clearance volume

d.

None of the mentioned

Discuss
Answer: (a).Swept volume to total volume
Q45.
A Sterling engine uses an energy source whose temperature is 727°C and an energy sink whose temperature is 27°C. How much heat must be added to the engine to produce 1 unit of work?

a.

1.10

b.

1.19

c.

1.43

d.

2.0

Discuss
Answer: (c).1.43
Q46.
Which of the following is not a component of Brayton cycle?

a.

Compressor

b.

Combustion Chamber

c.

Turbine

d.

Pump

Discuss
Answer: (d).Pump
Q47.
For a given value of mean temperature of heat addition(Tm) is?

a.

efficiency of Rankine is more if turbine exit temperature(Tmin) is less

b.

efficiency of Rankine is less if turbine exit temperature(Tmin) is less

c.

efficiency does not depend on turbine exit temperature

d.

none of the mentioned

Discuss
Answer: (a).efficiency of Rankine is more if turbine exit temperature(Tmin) is less
Q48.
Mean temperature of heat addition can be increased by?

a.

decreasing the amount of heat added

b.

increase the amount of heat added

c.

increase condensor pressure

d.

decreasing Turbine Inlet Temperature(TIT)

Discuss
Answer: (c).increase condensor pressure
Q49.
Internal irreversibility of Rankine cycle is caused by?

a.

fluid friction

b.

throttling and mixing

c.

expansion and compression process are quite rapid

d.

all of the mentioned

Discuss
Answer: (d).all of the mentioned
Q50.
Which of the following statement is true?

a.

efficiency is directly proportional to mean temperature of heat addition

b.

efficiency is inversely proportional to mean temperature of heat addition

c.

efficiency is exponential function of mean temperature of heat addition

d.

efficiency does not depend on mean temperature of heat addition

Discuss
Answer: (a).efficiency is directly proportional to mean temperature of heat addition
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