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. |
In a four stroke cycle diesel engine, the exhaust valve __________ |
| A. | opens at 30º before bottom dead center and closes at 10º after top dead center |
| B. | opens at bottom dead center and closes at top dead center |
| C. | opens at 30º after bottom dead center and closes at 10º before top dead center |
| D. | may open or close anywhere |
| Answer» B. opens at bottom dead center and closes at top dead center | |
| 2. |
In a four stroke cycle diesel engine, compression __________ |
| A. | starts at 40º after bottom dead center and ends at 10º before top dead center |
| B. | starts at 40º before top dead center and ends at 40º after bottom dead center |
| C. | starts at top dead center and ends at 40º before bottom dead center |
| D. | may start and end anywhere |
| Answer» B. starts at 40º before top dead center and ends at 40º after bottom dead center | |
| 3. |
In a four stroke cycle diesel engine, the exhaust valv? |
| A. | opens at 30º before bottom dead center and closes at 10º after top dead center |
| B. | opens at bottom dead center and closes at top dead center |
| C. | opens at 30º after bottom dead center and closes at 10º before top dead center |
| D. | may open or close anywhere |
| Answer» B. opens at bottom dead center and closes at top dead center | |
| 4. |
In a four stroke cycle diesel engine, compression |
| A. | starts at 40º after bottom dead center and ends at 10º before top dead center |
| B. | starts at 40º before top dead center and ends at 40º after bottom dead center |
| C. | starts at top dead center and ends at 40º before bottom dead center |
| D. | may start and end anywhere |
| Answer» B. starts at 40¬¨¬®‚Äö√†¬¥ before top dead center and ends at 40¬¨¬®‚Äö√†¬¥ after bottom dead center | |
| 5. |
In case of two stroke engines because of scavenging, burnt gases remain in the clearance space as in case of four stroke engines. |
| A. | True |
| B. | False |
| Answer» C. | |
| 6. |
The construction of a two stroke cycle engine is ____________ because it has ports instead of valves. |
| A. | complex |
| B. | simple |
| C. | unpredictable |
| D. | none of the mentioned |
| Answer» C. unpredictable | |
| 7. |
For the same output, two stroke engines occupy ___________ space. |
| A. | greater |
| B. | lesser |
| C. | same |
| D. | none of the mentioned |
| Answer» C. same | |
| 8. |
Two stroke engines are __________ than four stroke engines for the same power output and speed. |
| A. | heavier |
| B. | slower |
| C. | lighter |
| D. | none of the mentioned |
| Answer» D. none of the mentioned | |
| 9. |
As there is a working stroke in every revolution, a more uniform turning moment is obtained on the crankshaft and therefore, a __________ flywheel is required. |
| A. | heavier |
| B. | slower |
| C. | lighter |
| D. | none of the mentioned |
| Answer» D. none of the mentioned | |
| 10. |
The work required to overcome the friction of the exhaust and suction strokes is saved. |
| A. | True |
| B. | False |
| Answer» B. False | |