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 4 of 27

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Q31.
Which of the following contributes to the improvement of efficiency of Rankine cycle in a Thermal Power Plant?

a.

reheating of steam at intermediate stage

b.

regeneration use of steam for heating Boiler feed water

c.

use of high pressures

d.

all of the mentioned

Discuss
Answer: (d).all of the mentioned
Q32.
Match the following:

i) Boiler A. reversible adiabatic expansion of steam

ii) turbine B. constant pressure heat heat addition

iii) Condenser C. reversible adiabatic compression

iv) pump D. constant pressure heat rejection

a.

i-B ii-A iii-D iv-C

b.

i-A ii-C iii-D iv-A

c.

i-B ii-D iii-C iv-A

d.

i-A ii-D iii-B iv-C

Discuss
Answer: (a).i-B ii-A iii-D iv-C
Q33.
What is the actual turbine inlet temperature in Rankine cycle?

a.

700C

b.

800C

c.

550C

d.

1150C

Discuss
Answer: (c).550C
Q34.
Rankine cycle efficiency of a good Steam Power Plant may be in the range of?

a.

15 to 20%

b.

35 to 45%

c.

70 to 80%

d.

90 to 95%

Discuss
Answer: (b).35 to 45%
Q35.
A simple Rankine cycle operates the Boiler at 3 MPa with an outlet temperature of 350°C and the Condenser at 50 kPa. Assuming ideal operation and processes, what is the thermal efficiency of this cycle?

a.

7.7

b.

17.7

c.

27.7

d.

37.7

Discuss
Answer: (c).27.7
Q36.
A simple Rankine cycle produces 40 MW of power, 50 MW of process heat and rejects 60 MW of heat to the surroundings. What is the utilization factor of this co generation cycle neglecting the pump work?

a.

50

b.

60

c.

70

d.

80

Discuss
Answer: (b).60
Q37.
A gas turbine works on __________

a.

Carnot cycle

b.

Brayton cycle

c.

Dual cycle

d.

Rankine cycle

Discuss
Answer: (b).Brayton cycle
Q38.
What is the range of Thermal efficiency in the Brayton cycle?

a.

30-35%

b.

40-45%

c.

50-55%

d.

50-60%

Discuss
Answer: (c).50-55%
Q39.
What is the maximum possible TIT(Turbine Inlet Temperature)?

a.

1000 K

b.

1500 K

c.

950 K

d.

1300 K

Discuss
Answer: (d).1300 K
Q40.
A simple Brayton cycle uses Helium as the working fluid, has a maximum temperature of 1000 K, and a pressure ratio of 4. At the start of the compression, the Helium pressure and temperature are 50 kPa and 250 K. Based upon cold-air standard analysis assumptions, the thermal efficiency of the cycle is?

a.

0.13

b.

0.23

c.

0.43

d.

0.53

Discuss
Answer: (d).0.53
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