Piston rings are usually made of___________________?

Related Mcqs:

Pick up the false statement ?

A. Thermal efficiency of diesel engine i about 34% B. Theoretically correct mixture of air am petrol is approximately 15 : 1 C. High speed compression engines operate on dual combustion cycle D. Diesel engines are compression ignition engines E. S.I. engines are quality-governed engines...

The delay period in petrol engine is of the order of__________________?

A. 0.001 sec B. 0.002 see C. 0.01 sec D. 0.05 sec E. 0.1 sec...

Detonation can be controlled by_____________________?

A. varying compression ratio B. using lian mixture C. retarding the spark timing D. reducing the r.p.m. E. increasing inlet pressure...

Auto-ignition reaction time for petrol engine first decreases with increase in fuel air ratio, reaches a minimum value and then increases with subsequent increase in fuel air ratio. The minimum value occurs in the region of________________?

A. Lean mixture B. Chemically correct fuel air ratio C. Rich mixture D. Unpredictable...

A two stroke engine is usually identified by__________________?

A. size of flywheel B. weight of engine C. type of lubrication system D. absence of valves E. location of fuel tank...