MCQOPTIONS
Saved Bookmarks
MCQOPTIONS
This section includes 20 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. |
In thermo-syphon system, the radiator should be kept well above the engine, to provide a height for natural circulation. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 2. |
What is the outlet cooling water temperature for small engines? |
| A. | about 50ºC |
| B. | 60 to 65ºC |
| C. | 80ºC |
| D. | none of the mentioned |
| Answer» D. none of the mentioned | |
| 3. |
What is the outlet cooling water temperature for medium engines? |
| A. | about 50ºC |
| B. | 60 to 65ºC |
| C. | 80ºC |
| D. | none of the mentioned |
| Answer» C. 80ºC | |
| 4. |
What is the outlet cooling water temperature for large engines? |
| A. | about 50ºC |
| B. | 60 to 65ºC |
| C. | 80ºC |
| D. | none of the mentioned |
| Answer» B. 60 to 65ºC | |
| 5. |
The heat flow to water jackets, on average, is about ____________ for small engines. |
| A. | 500-6200 kJ/kW-h |
| B. | 400-4200 kJ/kW-h |
| C. | 500-5700 kJ/kW-h |
| D. | none of the mentioned |
| Answer» D. none of the mentioned | |
| 6. |
By which force the water pump, pumps water to the engine block? |
| A. | Centripetal |
| B. | Centrifugal |
| C. | Pressurized |
| D. | Compressor |
| Answer» C. Pressurized | |
| 7. |
Aircraft engines use ____ for cooling engines. |
| A. | a forced cooling system |
| B. | a water-cooled system |
| C. | a thermo-syphon cooling system |
| D. | an air-cooled system |
| Answer» E. | |
| 8. |
Bellows type of thermostat consists of a metal bag, which is partially filled with a liquid having low boiling temperature. What is this liquid? |
| A. | Electrolyte |
| B. | Ethyl |
| C. | Gasoline |
| D. | Coolant |
| Answer» C. Gasoline | |
| 9. |
In which type of radiator core water passes through the tubes? |
| A. | Tubular core |
| B. | Cellular core |
| C. | Pipe core |
| D. | Split core |
| Answer» B. Cellular core | |
| 10. |
Air cooling is mostly preferred for ______. |
| A. | Heavy trucks |
| B. | Buses |
| C. | Multi-utility vehicles |
| D. | Motorcyles |
| Answer» E. | |
| 11. |
Name the given figure |
| A. | Water coolant temperature |
| B. | Engine oil temperature |
| C. | Transmission oil temperature |
| D. | Exhaust gas temperature |
| Answer» B. Engine oil temperature | |
| 12. |
If thermostat valve remains struck in enclosed position, which of the following will happen? |
| A. | Rough idling speed |
| B. | Engine will warm up slowly |
| C. | Starting will be difficult |
| D. | Engine will overheat |
| Answer» E. | |
| 13. |
Radiator of which of the engine is small in size- |
| A. | Petrol Engine |
| B. | Diesel Engine |
| C. | Both (a) and (b) |
| D. | None of these |
| Answer» B. Diesel Engine | |
| 14. |
“Heat exchange cooling system” used in ________ |
| A. | Industrial engine |
| B. | Vehicle engine |
| C. | Marine engine |
| D. | Agricultural engine |
| Answer» C. Marine engine | |
| 15. |
As the rating of the pressure cap increases in the radiator, the boiling point of the coolant |
| A. | decreases |
| B. | remains the same |
| C. | increases |
| D. | initially increases and later decreases |
| Answer» D. initially increases and later decreases | |
| 16. |
In thermo-syphon system, the radiator should be kept well above the engine, to provide a height for natural circulation? |
| A. | True |
| B. | False |
| Answer» B. False | |
| 17. |
The outlet cooling water temperature for large engines is |
| A. | about 50ºC |
| B. | 60 to 65ºC |
| C. | 80ºC |
| D. | none of the mentioned |
| Answer» B. 60 to 65¬¨¬®‚Äö√†¬¥C | |
| 18. |
The heat flow to water jackets, on an average, is about ____________ for large engines. |
| A. | 500 kJ/kW-h |
| B. | 4200 kJ/kW-h |
| C. | 5700 kJ/kW-h |
| D. | none of the mentioned |
| Answer» C. 5700 kJ/kW-h | |
| 19. |
The turbocharged diesel engine requires ____________ cooling air than naturally aspired diesel engines. |
| A. | less |
| B. | more |
| C. | equal |
| D. | none of the mentioned |
| Answer» B. more | |
| 20. |
The gasoline engine requires much ____________ air than a diesel engine. |
| A. | less |
| B. | more |
| C. | equal |
| D. | none of the mentioned |
| Answer» C. equal | |