Combined Cycle Power Generation MCQs

Welcome to our comprehensive collection of Multiple Choice Questions (MCQs) on Combined Cycle Power Generation, 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 Combined Cycle Power Generation 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 Combined Cycle Power Generation mcq questions that explore various aspects of Combined Cycle Power Generation problems. Each MCQ is crafted to challenge your understanding of Combined Cycle Power Generation 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 Combined Cycle Power Generation 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 Combined Cycle Power Generation. 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 Combined Cycle Power Generation knowledge to the test? Let's get started with our carefully curated MCQs!

Combined Cycle Power Generation MCQs | Page 3 of 8

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Q21.
The maximum efficiency of Rankine cycle (ηᵣ) is the function of ___________

a.

the mean temperature of heat addition (Tm) only

b.

the mean temperature of heat addition (Tm) and temperature of steam at the exit of the turbine

c.

the mean temperature of heat addition (Tm) and temperature of steam at the entry of the turbine

d.

the mean temperature of heat addition (Tm) and temperature of steam at exit of the condenser

Discuss
Answer: (a).the mean temperature of heat addition (Tm) only
Q22.
What is the effect of superheated steam on efficiency of Rankine cycle?

a.

efficiency of Rankine cycle decreases with increase in superheat of the steam

b.

efficiency of Rankine cycle increases with increase in superheat of the steam

c.

efficiency of Rankine cycle is not affected by change in superheat of the steam

d.

none of the mentioned

Discuss
Answer: (b).efficiency of Rankine cycle increases with increase in superheat of the steam
Q23.
What is the effect of increase in pressure at which heat is added on the pump work in the Rankine cycle?

a.

the pump work increases with increase in pressure of heat addition

b.

the pump work decreases with increase in pressure of heat addition

c.

the pump work does not change with increase in pressure of heat addition

d.

the pump work either increases or decreases with increase in pressure of heat addition

Discuss
Answer: (a).the pump work increases with increase in pressure of heat addition
Q24.
When the pressure at which heat is added in Rankine cycle increases, the moisture content at the turbine exhaust?

a.

increases

b.

decreases

c.

remains same

d.

cannot say

Discuss
Answer: (a).increases
Q25.
What is the condition for increasing the chances of corrosion of blades of turbine?

a.

decrease in the pressure difference between which the Rankine cycle operates

b.

increase in the pressure difference between which the Rankine cycle operates

c.

increases and decreases in the pressure difference between which the Rankine cycle operates

d.

none of the mentioned

Discuss
Answer: (b).increase in the pressure difference between which the Rankine cycle operates
Q26.
What is the maximum content of moisture allowed at the turbine exhaust in the steam power plant?

a.

50 %

b.

60 %

c.

30 %

d.

15 %

Discuss
Answer: (d).15 %
Q27.
Which of these is a binary cycle?

a.

Mercury-steam cycle

b.

Mercury-water cycle

c.

Mercury-Sodium cycle

d.

None of the mentioned

Discuss
Answer: (a).Mercury-steam cycle
Q28.
The mercury steam cycle represents how many coupled Rankine cycles?

a.

1

b.

2

c.

3

d.

4

Discuss
Answer: (b).2
Q29.
In the mercury steam cycle, the mercury cycle is called?

a.

bottoming cycle

b.

middle cycle

c.

topping cycle

d.

none of the mentioned

Discuss
Answer: (c).topping cycle
Q30.
In the mercury steam cycle, the steam cycle is called?

a.

bottoming cycle

b.

middle cycle

c.

topping cycle

d.

none of the mentioned

Discuss
Answer: (a).bottoming cycle
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