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This section includes 17 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. |
If the engine is overcooled some of the heat which could be used to expand the gases will be lost. |
A. | True |
B. | False |
Answer» B. False | |
2. |
A hot-spot outside the combustion chamber may be sufficient to cause pre-ignition. |
A. | True |
B. | False |
Answer» C. | |
3. |
Inadequate lubrication of the engine, due to oil not being warm enough to flow freely, results in greater frictional losses. |
A. | True |
B. | False |
Answer» B. False | |
4. |
As the cool mixture is inducted into the engine cylinder the temperature rises rapidly. |
A. | True |
B. | False |
Answer» C. | |
5. |
At the end of the induction stroke the temperature is that of clearance gases. |
A. | True |
B. | False |
Answer» C. | |
6. |
Most of the heat is carried away by the cooling system while some are lost by direct radiation from the engine surfaces. |
A. | True |
B. | False |
Answer» B. False | |
7. |
The hot gases give part of their heat to ____________ |
A. | cylinder liner |
B. | piston and piston rings |
C. | cylinder head |
D. | all of the mentioned |
Answer» E. | |
8. |
IF_THE_ENGINE_IS_OVERCOOLED_SOME_OF_THE_HEAT_WHICH_COULD_BE_USED_TO_EXPAND_THE_GASES_WILL_BE_LOST.?$ |
A. | True |
B. | False |
Answer» B. False | |
9. |
A hot-spot outside the combustion chamber may be sufficient to cause pre-ignition? |
A. | True |
B. | False |
Answer» C. | |
10. |
Inadequate lubrication of the engine, due to oil not being warm enough to flow freely, results in greater frictional losses? |
A. | True |
B. | False |
Answer» B. False | |
11. |
During the expansion process the temperature ____________ and then drops very rapidly during the release process. |
A. | decreases |
B. | increases |
C. | remains same |
D. | none of the mentioned |
Answer» B. increases | |
12. |
During compression process the temperature ____________ and attains its maximum value at the end of combustion process. |
A. | decreases |
B. | increases |
C. | remains same |
D. | none of the mentioned |
Answer» C. remains same | |
13. |
As the cool mixture is inducted in the engine cylinder the temperature rises rapidly. |
A. | True |
B. | False |
Answer» C. | |
14. |
At the end of induction stroke the temperature is that of clearance gases. |
A. | True |
B. | False |
Answer» C. | |
15. |
Most of the heat is carried away by the cooling system while some is lost by direct radiation from the engine surfaces. |
A. | True |
B. | False |
Answer» B. False | |
16. |
The hot gases give part of their heat to |
A. | cylinder liner |
B. | piston and piston rings |
C. | cylinder head |
D. | all of the mentioned |
Answer» E. | |
17. |
The transfer of heat takes place due to difference in temperature and from higher temperature to lower temperature. |
A. | True |
B. | False |
Answer» B. False | |