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Q. |
By which process does the knocking starts in diesel engine? |
A. | due to sudden spontaneous combustion of last portion of fuel |
B. | due to delay in spontaneous combustion of last portion of fuel |
C. | due to the rise in temperature of diesel engine |
D. | due to the parts of diesel engine |
Answer» B. due to delay in spontaneous combustion of last portion of fuel | |
Explanation: due to the presence of impurities in diesel, its spontaneous combustion of the last portion of fuel takes some time. due to this their produces an uneven sound in the engine which is called knocking. |
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