Renewable Energy Mock Test 5

10%

Question 1 of 10

1. Heat engine efficiency increases with ________ sink temperature.

decrease in

increase in

no change in

increment in rate of increasing

Question 1 of 10

Question 2 of 10

2. Solar cooking is pollution free.

False

True

Question 2 of 10

Question 3 of 10

3. Archimedes is said to have repelled attacking Roman ships with the help of “burning glass”.

False

True

Question 3 of 10

Question 4 of 10

4. Indirect solar dryers protect the food.

True

False

Question 4 of 10

Question 5 of 10

5. What is pasteurization?

Process of treating water by biological techniques

Process of capturing sun’s heat

Process of treating water by heating it mildly

Process of producing water

Question 5 of 10

Question 6 of 10

6. _______ are used as air exhausts in indirect solar dryers.

Turbines

Chimneys

Ceiling fans

Table fans

Question 6 of 10

Question 7 of 10

7. Solar furnaces can be used as solar cookers for domestic purposes.

False

True

Question 7 of 10

Question 8 of 10

8. Which of the following is a configuration of solar still?

Solar cell

Frustum shaped

Cone shaped

Solar panel

Question 8 of 10

Question 9 of 10

9. What is solar dryer?

Use solar energy to dry liquids

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

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

Use solar energy to dry substances

Question 9 of 10

Question 10 of 10

10. What is the maximum temperature used in cooking? Note that C indicates Celsius

100 degree C for boiling water and related dishes

400 degree C for grilling and searing

30 degree C for melting food items like butter

800 degree C for melting metals

Question 10 of 10