Solar Thermal System MCQs

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

Note: Each of the following question comes with multiple answer choices. Select the most appropriate option and test your understanding of Solar Thermal System. 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 Solar Thermal System knowledge to the test? Let's get started with our carefully curated MCQs!

Solar Thermal System MCQs | Page 20 of 21

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Q191.
Heat engine efficiency increases with ________ sink temperature.

a.

no change in

b.

decrease in

c.

increment in rate of increasing

d.

increase in

Discuss
Answer: (b).decrease in
Q192.
Isothermal process is a process conducted at constant temperature.

a.

True

b.

False

c.

May be True or False

d.

Can't say

Discuss
Answer: (a).True
Q193.
How does an ideal Rankine cycle work?

a.

Heat-addition process does not occur at constant temperature

b.

Heat-addition process occurs at temperature

c.

Heat-addition process does not occur at constant pressure

d.

Heat-addition process occurs at constant pressure

Discuss
Answer: (a).Heat-addition process does not occur at constant temperature
Q194.
Which of the following best describes the process of an ideal Rankine cycle?

a.

Working fluid is heated in boiler → exhaust vapour is condensed → vapour runs the turbine → liquid residue is pumped back into boiler

b.

Working fluid is heated in boiler → vapour runs the turbine → exhaust vapour is condensed → liquid residue is pumped back into boiler

c.

Vapour runs the turbine → working fluid is heated in boiler → exhaust vapour is condensed → liquid residue is pumped back into boiler

d.

Exhaust vapour is condensed → Working fluid is heated in boiler → vapour runs the turbine → liquid residue is pumped back into boiler

Discuss
Answer: (b).Working fluid is heated in boiler → vapour runs the turbine → exhaust vapour is condensed → liquid residue is pumped back into boiler
Q195.
Why is the efficiency of Rankine cycle less than that of Carnot cycle?

a.

Because of the working fluid

b.

Because of the turbines

c.

Because all the heat is not supplied at upper temperatures

d.

Because all the heat is supplied at upper temperatures

Discuss
Answer: (c).Because all the heat is not supplied at upper temperatures
Q196.
How can the efficiency of Rankine cycle be improved?

a.

By supplying heat at higher temperatures

b.

By supplying heat at lower temperatures

c.

By rejecting more heat

d.

By using a part of rejected heat

Discuss
Answer: (d).By using a part of rejected heat
Q197.
How does Stirling cycle differ from Carnot cycle?

a.

The two adiabatic steps in Carnot cycle are replaced by two constant volume steps

b.

The two adiabatic steps in Carnot cycle are replaced by two constant temperature steps

c.

The two isothermal steps in Carnot cycle are replaced by two constant volume steps

d.

The two isobaric steps in Carnot cycle are replaced by two constant volume steps

Discuss
Answer: (a).The two adiabatic steps in Carnot cycle are replaced by two constant volume steps
Q198.
In Stirling cycle, the heat addition and rejection take place at _________

a.

constant pressure

b.

constant temperature

c.

two different temperatures

d.

multiple pressures

Discuss
Answer: (b).constant temperature
Q199.
Which of the following best describes Brayton Cycle?

a.

Exhaust gas → hot compressed gas → expands through turbine by doing work → heat exchanger → rejection of heat → gas goes to compressor

b.

Exhaust gas → hot compressed gas → expands through turbine by doing work → heat exchanger → gas goes to compressor → rejection of heat

c.

Hot compressed gas →expands through turbine by doing work → exhaust gas → heat exchanger → rejection of heat → gas goes to compressor

d.

Heat exchanger → exhaust gas → hot compressed gas → expands through turbine by doing work → gas goes to compressor → rejection of heat

Discuss
Answer: (c).Hot compressed gas →expands through turbine by doing work → exhaust gas → heat exchanger → rejection of heat → gas goes to compressor
Q200.
Which of the following governs the efficiency of any practical solar thermo-mechanical system?

a.

Photovoltaics

b.

Rankine Cycle

c.

Brayton Cycle

d.

Properties of working fluid

Discuss
Answer: (d).Properties of working fluid
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