| 1 |
The efficiency of any heat engine can never be |
- A. +ve
- B. 100%
- C. -ve
- D. None of these
|
| 2 |
Average translational K.E. of molecules for an ideal gas is given as |
- A. 1/2 KT
- B. KT
- C. 2/3 KT
- D. 3/2 KT
|
| 3 |
Which of following is irreversible process |
- A. Slow compression of an elastic spring
- B. Slow evaporation of substances in isolated vessel
- C. Slow expansion of a gas
- D. A chemical explosion
- E. <br>
|
| 4 |
Unite of thermodynamics scale of temperature is. |
- A. Centigrade
- B. Fahrenheit
- C. Kelvin
- D. Celsius
|
| 5 |
No of spark plugs needed in the diesel engine are. |
|
| 6 |
In thermodynamics system internal energy decrease by 100 J and 100 J of work done on the system then heat lost will be. |
- A. Zero
- B. 100 J
- C. 200 J
- D. -200 J
|
| 7 |
Which is an example of irreversible process. |
- A. Explosion
- B. Evaporation
- C. Slow compression
- D. A chemical explosion
|
| 8 |
Pressure 'P' of a gas is defined as |
- A. F/A
- B. FA
- C. F/V
- D. F/D
|
| 9 |
Pascal is the unit of |
- A. Pressure
- B. Force
- C. Tension
- D. Weight
|
| 10 |
In the thermodynamics process , the equation W = -delta U represents. |
- A. Isothermal expension
- B. Isothermal compression
- C. Adiabatic expansion
- D. Adiabatic compression
|
