| 1 |
The process in which heat is transfer due to actual movement of molecule is called. |
- A. Conduction
- B. radiation
- C. Convection
- D. All of these
|
| 2 |
Land and sea breezes are the result of: |
- A. Absorption
- B. Radiation
- C. Conduction
- D. Convection
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| 3 |
During recent years the percentage of __________ increased considerably on earth: |
- A. Carbon dioxide
- B. Nitrogen
- C. Oxygen
- D. Methane
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| 4 |
Heat form one of a metal rod a reaches to the other by the process of |
- A. convection
- B. radiation
- C. conduction
- D. both (a) and (b)
|
| 5 |
Those objects which do not conduct electricity are called. |
- A. Insulator
- B. Semi conductor
- C. Nil
- D. Conduct
|
| 6 |
Which surface is bad emitter: |
- A. White surface
- B. Black surface
- C. Coloured surface
- D. Silver surface
|
| 7 |
Which one box is used to keep food hot and ice cream cold for long period? |
- A. Iron box
- B. Aluminium Box
- C. Styrofoam box
- D. Plastic box
|
| 8 |
Degree of hotness or coldness of the body is called: |
- A. Heat capacity
- B. Thermal conductivity
- C. Heat
- D. Temperture
|
| 9 |
See breeze blows form sear to land during: |
- A. day
- B. night
- C. after noon
- D. morning
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| 10 |
Air and water is conductor: |
- A. Poor
- B. Good
- C. Excellent
- D. None of these
|