MCQOPTIONS
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MCQOPTIONS
This section includes 10 Mcqs, each offering curated multiple-choice questions to sharpen your Ic Engine knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
A_CYCLIC_HEAT_ENGINE_DOES_50KJ_OF_WORK_PER_CYCLE._IF_EFFICIENCY_OF_ENGINE_IS_75%,_THE_HEAT_REJECTED_PER_CYCLE_WILL_BE?$ |
| A. | 60.6kJ |
| B. | 16.6kJ |
| C. | 66.6kJ |
| D. | 200kJ |
| Answer» C. 66.6kJ | |
| 2. |
A_carnot_cycle_refrigerator_operates_between_250ºK_and_300ºK._What_is_the_value_of_COP?$# |
| A. | 10 |
| B. | 20 |
| C. | 25 |
| D. | 5 |
| Answer» E. | |
| 3. |
A carnot cycle is to be designed to attain efficiency of 0.75. if temperature of high temperature reservoir is 727ºC, then low temperature reservoir will have to be maintained a?# |
| A. | 23ºC |
| B. | 181ºC |
| C. | -23ºC |
| D. | -181ºC |
| Answer» D. -181¬¨¬®‚Äö√†¬¥C | |
| 4. |
A carnot heat pump is used to heat a house. The outside temperature is -3ºC and the indoor temperature is 27ºC. If the heat loss from the house is 40kW, the power required to operate the heat pump is$ |
| A. | 1kW |
| B. | 2kW |
| C. | 3kW |
| D. | 4kW |
| Answer» E. | |
| 5. |
For a given temperature T1, as the difference between T1 and T2 increases, the COP of a carnot heat pump |
| A. | increases |
| B. | decreases |
| C. | first increases, then decreases |
| D. | none of the mentioned |
| Answer» C. first increases, then decreases | |
| 6. |
The adiabatic process of a carnot cycle needs very __________ motion to complete the adiabatic process. |
| A. | slow |
| B. | fast |
| C. | medium |
| D. | none of the mentioned |
| Answer» C. medium | |
| 7. |
The isothermal process of a carnot cycle needs very __________ motion of the piston to maintain constant temperature. |
| A. | slow |
| B. | fast |
| C. | medium |
| D. | none of the mentioned |
| Answer» B. fast | |
| 8. |
In a carnot cycle, the working fluid is |
| A. | a real gas |
| B. | an ideal gas |
| C. | a natural gas |
| D. | none of the mentioned |
| Answer» C. a natural gas | |
| 9. |
In a carnot cycle, the working medium rejects heat at a ____________ temperature. |
| A. | lower |
| B. | higher |
| C. | constant |
| D. | none of the mentioned |
| Answer» B. higher | |
| 10. |
In a carnot cycle, the working medium receives heat at a _____________ temperature. |
| A. | lower |
| B. | higher |
| C. | constant |
| D. | none of the mentioned |
| Answer» C. constant | |