Renewable Energy Mock Test 5

10%

Question 1 of 10

1. What is Carnot efficiency?

Ratio of relative temperature between source and sink and the relative source temperature

Ratio of rate of the temperature difference and the absolute source temperature

Rate of the temperature difference divided by rate of initial temperature change

Ratio of absolute temperature between source and sink and the absolute source temperature

Question 1 of 10

Question 2 of 10

2. Which of the following best describes the process of solar distillation?

Influent → solar distillation system → evaporation of volatile solvents as effluents → salty solute remains

Solar distillation system → influent → evaporation of volatile solvents as effluents → salty solute remains

Influent → solar distillation system → salty solute remains → evaporation of volatile solvents as effluents

Influent → evaporation of volatile solvents as effluents → solar distillation system → salty solute remains

Question 2 of 10

Question 3 of 10

3. Which of the following concentrates sunlight onto a focal point?

Plane mirrors

Silver coated surface

Black surface

Parabolic mirrors

Question 3 of 10

Question 4 of 10

4. Which of the following best describes the working of central receiver thermal power system?

Heliostats reflect solar flux → sunlight → central receiver → turbine system → electricity

Sunlight → heliostats absorb solar flux → central receiver → turbine system → electricity

Heliostats reflect solar flux → sunlight → turbine system → central receiver → electricity

Sunlight → heliostats reflect solar flux → central receiver → turbine system → electricity

Question 4 of 10

Question 5 of 10

5. What is the typical range of temperature at the focal point of a parabolic mirror in solar furnaces? Note that C stands for Celsius

Between 100 and 150 degree C

Between 1000 and 2000 degree C

Upto 20 degree C

Between 50 and 100 degree C

Question 5 of 10

Question 6 of 10

6. What is solar distillation?

Use solar energy to collect the condensate of water within the same closed system

Use solar energy to evaporate water and collect it within the same closed system

Use solar energy to evaporate water and collect its condensate within the same closed system

Use solar energy to evaporate water and collect its condensate within different closed systems

Question 6 of 10

Question 7 of 10

7. Which of the following is a line focus collector used in a distributed power system?

Convex mirrors

Linear fresnel reflector

Concave lenses

Parabolic mirrors

Question 7 of 10

Question 8 of 10

8. Which of the following principles is used to concentrate sunlight in solar cookers?

Specular reflection

Rarefaction

Evaporation

Radiation

Question 8 of 10

Question 9 of 10

9. Which of the following majorly affects the phenomenon of concentrating sunlight?

Black surface

Geometry of the reflecting structure

Type of food

Non-reflecting surface

Question 9 of 10

Question 10 of 10

10. Which of the following best describes Brayton Cycle?

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

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

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

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

Question 10 of 10

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