MCQOPTIONS
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MCQOPTIONS
This section includes 8 Mcqs, each offering curated multiple-choice questions to sharpen your Power Plant knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
A four stroke diesel engine has |
| A. | One valve |
| B. | Two valves |
| C. | Three valves |
| D. | Four valves |
| Answer» C. Three valves | |
| 2. |
A diesel car is powered by 1.4 litre diesel engine. What does 1.4 litre represent? |
| A. | Horse power |
| B. | Engine torque |
| C. | Engine cubic capacity |
| D. | Bore diameter |
| Answer» D. Bore diameter | |
| 3. |
In a 4-storke IC engine cam shaft speed is _______ the crankshaft speed |
| A. | double |
| B. | Half |
| C. | can be any multiple |
| D. | equal |
| Answer» C. can be any multiple | |
| 4. |
A diesel engine has compression ratio from ______. |
| A. | 6 to 10 |
| B. | 10 to 15 |
| C. | 15 to 25 |
| D. | 25 to 40 |
| Answer» D. 25 to 40 | |
| 5. |
The injector nozzle of a compression ignition engine is required to inject fuel at a sufficiently high pressure in order to |
| A. | inject fuel at a high velocity to facilitate atomisation |
| B. | inject fuel in a chamber of high pressure at the end of compression stroke |
| C. | ensure that penetration is not high |
| D. | all of the mentioned |
| Answer» E. | |
| 6. |
A diesel engine is __________ as compared to petrol engine, both running at rated load. |
| A. | equally efficient |
| B. | more efficient |
| C. | less efficient |
| D. | all of the mentioned |
| Answer» C. less efficient | |
| 7. |
In compression ignition engines, swirl denotes a |
| A. | Haphazard motion of the gases in the chamber |
| B. | Rotary motion of the gases in the chamber |
| C. | Radial motion of the gases in the chamber |
| D. | None of the mentioned |
| Answer» C. Radial motion of the gases in the chamber | |
| 8. |
In petrol engines, the delay period is of the order of |
| A. | 0.001 sec |
| B. | 0.002 sec |
| C. | 0.003 sec |
| D. | 0.004 sec |
| Answer» C. 0.003 sec | |