| 1 |
For working of heat engine, there must be |
- A. A source
- B. A sink
- C. Ether of these
- D. Both of them
|
| 2 |
Heat is form of. |
- A. Power
- B. Momentum
- C. Energy
- D. Torque
|
| 3 |
In the thermodynamics process , the equation W = -delta U represents. |
- A. Isothermal expension
- B. Isothermal compression
- C. Adiabatic expansion
- D. Adiabatic compression
|
| 4 |
An ideal reversible heat engine has |
- A. 100% efficiency
- B. Highest efficiency
- C. 80%
- D. 90%
|
| 5 |
The efficiency of diesel engine is about |
- A. 25% to 30%
- B. 35% to 40%
- C. 40% to 50%
- D. 50% to 60%
|
| 6 |
Which is the process in which temperature of the system remains constant. |
- A. Adiabatic process
- B. Isochoric process
- C. Isothermal process
- D. Isobaric process
|
| 7 |
Value of triple point of water is given as. |
- A. Zero K
- B. 100 K
- C. 273.16 K
- D. 373.16 K
|
| 8 |
The entropy of the universe with passage of time is. |
- A. Increases
- B. Decreases
- C. Remain constant
- D. Increases and decreases
|
| 9 |
The Carnot cycle can be shown by which graph |
- A. P - T graph
- B. P - V Graph
- C. V- T graph
- D. PV -T graph
|
| 10 |
The measure of hotness or coldness of a substance is. |
- A. Temperature
- B. Heat
- C. Internal energy
- D. Energy
|
