| 1 |
Sunlight is directly transformed to electricity with the help of: |
- A. Solar cells
- B. Diod
- C. Rectifier
- D. Transistor
|
| 2 |
Natural gas is measured in: |
- A. square meter
- B. cubic meters
- C. Btu
- D. B and C both
|
| 3 |
The conversion of the kinetic energy of running water to electrical energy is called |
- A. power production
- B. Thermal power
- C. Hydroelectric power
- D. Nuclear power
|
| 4 |
The cause of thermal pollution; |
- A. only green house effect
- B. only nuclear reactors
- C. only fossil fuels
- D. All , A, B and C
|
| 5 |
The practically unit of electricity is; |
- A. kilowatt hour
- B. watt
- C. Joule
- D. Ampere
|
| 6 |
The energy of moving charges is called: |
- A. Light energy
- B. Heat energy
- C. Chemical energy
- D. Electrical energy
|
| 7 |
One Btu is equal to. |
- A. 1100 joules
- B. 1055 Joules
- C. 1050 Joules
- D. 1040 Joules
|
| 8 |
Energy possessed bu a body due to its motion is known as: |
- A. Kinetic energy
- B. Heat energy
- C. Electric energy
- D. Chemical
|
| 9 |
The largest source of light is. |
- A. Sun
- B. Moon
- C. Stars
- D. Plants
|
| 10 |
One kilowatt-hour is the amount of energy that is consumed by a ........ applicance in one hour. |
- A. 1000 watt
- B. 100 watt
- C. 10000 watt
- D. 500 watt
|