Renewable Energy Mock Test 7

10%

Question 1 of 10

1. For a fixed receiver, incident power density and received power density are always equal.

True

False

Question 1 of 10

Question 2 of 10

2. Which of the following depicts the correct order of the stages involved in grid integration of wind energy?

Planning → physical connection → system operations

System operations → physical connection → planning

Physical connection → planning → system operations

Planning → system operations → physical connection

Question 2 of 10

Question 3 of 10

3. Parallel shaft gearbox is used in small turbines.

False

True

Question 3 of 10

Question 4 of 10

4. Which of the following towers is used for small wind turbines?

Hybrid tower

Electric pole

Wooden pole

Guyed pole tower

Question 4 of 10

Question 5 of 10

5. What is a yaw drive?

A device used to track wind direction

A device used to house various energy conversion components

A motor to ensure that nacelle faces the wind

A device used to support and stabilize other components

Question 5 of 10

Question 6 of 10

6. What are wind energy conversion systems designed for?

To convert wind energy to potential energy

To convert wind energy to mechanical energy

To convert mechanical energy to wind energy

To convert wind energy to electrical energy

Question 6 of 10

Question 7 of 10

7. How is the speed varied in limited variable speed WECS?

Variable rotor resistance

Fixed capacitance

Variable rotor

Fixed rotor resistance

Question 7 of 10

Question 8 of 10

8. Lower wind speeds result in ________

lower wind energy obtained

100% energy conversion for half the operation time and less than 10% energy conversion for the remaining half of the operation time

higher wind energy obtained

no wind energy obtained

Question 8 of 10

Question 9 of 10

9. What is cut-in wind speed?

Wind turbine stops generating output power

Wind turbine stops functioning

Wind turbine starts functioning

Wind turbine starts generating output power

Question 9 of 10

Question 10 of 10

10. Which of the following is an application of pumped hydro-electric storage?

Absorbs power to increase the net expenses

Frequency regulation in both pumping and generation modes

Frequency regulation only in pumping mode

Energy source

Question 10 of 10