In order to prevent knock in the S.I. engines, the charge away from the spark plug should have___________________?

Related Mcqs:

Scavenging is usually done to increase__________________?

A. thermal efficiency B. speed C. power output D. fuel consumption E. all of the above...

Does the supply of scavenging air at a density greater than that of atmosphere mean engine is supercharged ?

A. yes B. no C. to some extent D. unpredictable E. depends on other factors...

Supercharging is essential in_____________?

A. diesel engines B. gas turbines C. petrol engines D. aircraft engines E. marine engines...

Ethyl fluid is used_______________________?

A. to increase the octane rating of the fuel B. to increase the cetane rating of the fuel C. as a defrosting agent D. as a superior type of fluid compared to others E. to improve lubricating quality of fuel...

Leakage past the piston rings and valve seats in I.C. engines with increase in speed_______________?

A. increases. B. decreases C. remains same D. unpredictable E. none of the above...