MCQOPTIONS
Saved Bookmarks
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. |
In a four stroke cycle diesel engine, the inlet valve __________ |
| A. | opens at 20 before top dead center and closes at 40 after bottom dead center |
| B. | opens at 20 after top dead center and closes at 20 before bottom dead center |
| C. | opens at top dead center and closes at bottom dead center |
| D. | may open or close anywhere |
| Answer» B. opens at 20 after top dead center and closes at 20 before bottom dead center | |
| 2. |
In a four stroke cycle the minimum temperature inside the engine cylinder occurs at the __________ |
| A. | beginning of suction stroke |
| B. | end of suction stroke |
| C. | beginning of exhaust stroke |
| D. | end of exhaust stroke |
| Answer» B. end of suction stroke | |
| 3. |
The inlet valve of a four stroke cycle internal combustion engine remains open for __________ |
| A. | 130 |
| B. | 180 |
| C. | 230 |
| D. | 270 |
| Answer» D. 270 | |
| 4. |
The exhaust valve in a four stroke cycle petrol engine __________ |
| A. | opens at 50 before bottom dead center and closes at 15 after top dead center |
| B. | opens at bottom dead center and closes at top dead center |
| C. | opens at 50 after bottom dead center and closes at 15 before top dead center |
| D. | may open or close anywhere |
| Answer» B. opens at bottom dead center and closes at top dead center | |
| 5. |
In a four stroke cycle petrol engine, the expansion __________ |
| A. | starts at top dead center and ends at bottom dead center |
| B. | starts at 30 before top dead center and ends at 50 before bottom dead center |
| C. | starts at 30 after top dead center and ends at 50 after bottom dead center |
| D. | may start and end anywhere |
| Answer» C. starts at 30 after top dead center and ends at 50 after bottom dead center | |
| 6. |
In a four stroke cycle petrol engine, the charge is ignited at __________ |
| A. | 30 before top dead center |
| B. | 30 after top dead center |
| C. | 30 before bottom dead center |
| D. | 30 after bottom dead center |
| Answer» B. 30 after top dead center | |
| 7. |
In a four stroke cycle petrol engine, the compression __________ |
| A. | starts at 40 after bottom dead center and ends at 30 before top dead center |
| B. | starts at 40 before bottom dead center and ends at 30 after top dead center |
| C. | starts at bottom dead center and ends at top dead center |
| D. | may start and end anywhere |
| Answer» B. starts at 40 before bottom dead center and ends at 30 after top dead center | |
| 8. |
In a four stroke cycle petrol engine, the inlet valve __________ |
| A. | opens at top dead center and closes at bottom dead center |
| B. | opens at 20 before top dead center and closes at 40 after bottom dead center |
| C. | opens at 20 after top dead center and closes at 20 before bottom dead center |
| D. | may open or close anywhere |
| Answer» C. opens at 20 after top dead center and closes at 20 before bottom dead center | |
| 9. |
In a four stroke cycle engine, the sequence of operation is __________ |
| A. | suction, compression, expansion and exhaust |
| B. | suction, expansion, compression and exhaust |
| C. | expansion, compression, suction and exhaust |
| D. | compression, expansion, suction and exhaust |
| Answer» B. suction, expansion, compression and exhaust | |
| 10. |
In a four stroke engine, the working cycle is completed in __________ |
| A. | one revolution of the crankshaft |
| B. | two revolution of the crankshaft |
| C. | three revolution of the crankshaft |
| D. | four revolution of the crankshaft |
| Answer» C. three revolution of the crankshaft | |