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 10 of 27

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Q91.
Which one of the following is an advantage of reheat cycle?

a.

the size of the Low pressure (LP) turbine blades is reduced because specific volume is reduced by 7 to 8%

b.

the reheating reduce 4 to 5% fuel consumption with a corresponding reduction in the fuel handling

c.

lower steam pressures and temperatures and less costly materials can be used to obtain the required thermal performance

d.

all of the mentioned

Discuss
Answer: (d).all of the mentioned
Q92.
The product of steam rate & network when the steam rate is expressed in kg/kWh is equal to?

a.

36

b.

360

c.

3600

d.

60

Discuss
Answer: (c).3600
Q93.
The product of heat rate & efficiency when the heat rate is expressed in kJ/kWh is equal to?

a.

60

b.

36

c.

360

d.

3600

Discuss
Answer: (d).3600
Q94.
What is the effect of reheat pressure on mean temperature of heat addition Tml?

a.

Reheat pressure is directly proportional to Tml

b.

Reheat pressure is inversely proportional to Tml

c.

Reheat pressure is equal to Tml

d.

Tml is independent of reheat pressure

Discuss
Answer: (a).Reheat pressure is directly proportional to Tml
Q95.
Why is the steam not allowed to expand deep into the two phase region before it is taken to reheating?

a.

to control flow rate

b.

to control phase change

c.

to protect reheat tubes

d.

none of the mentioned

Discuss
Answer: (c).to protect reheat tubes
Q96.
Net Work output of the plant __________ with reheat.

a.

decreases

b.

increases

c.

remains same

d.

none of the mentioned

Discuss
Answer: (b).increases
Q97.
Which of the following problems are posed by increasing the number of reheats?

a.

Cost & Fabrication problems arise

b.

Heat transfer problems arise

c.

Frictional losses arise

d.

None of the mentioned

Discuss
Answer: (a).Cost & Fabrication problems arise
Q98.
What is the effect of decrease of reheat pressure on the quality of steam at turbine exhaust?

a.

decreases

b.

increases

c.

remains same

d.

none of the mentioned

Discuss
Answer: (b).increases
Q99.
The optimum reheat pressure for most of the power plants is how many times of the initial steam pressure?

a.

0.1-0.15

b.

0.2-0.20

c.

0.2-0.25

d.

0.1-0.10

Discuss
Answer: (c).0.2-0.25
Q100.
What is the most preferable dryness fraction of the exhaust steam?

a.

0.99

b.

0.77

c.

0.66

d.

0.88

Discuss
Answer: (d).0.88
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