Piston rings are plated with chromium,cadmium or phosphate in order to__________________?

Related Mcqs:

All heat engines utilize_____________________?

A. low heat value of oil B. high heat value of oil C. net claorific value of oil D. calorific value of fuel E. all of the above...

In diesel engine the diesel fuel injected into cylinder would burn instantly at about compressed air temperature of____________________?

A. 250°C B. 500°C C. 1000°C D. 150CPC E. 2000°C...

Engine pistons ‘are usually made of aluminium alloy because it_________________?

A. is lighter B. wears less C. absorbs shocks D. is stronger E. does not react with fuel and lub oil...

The self-ignition temperature of diesel oil compared to petrol is_________________?

A. higher B. lower C. same D. depends on quality of fuel E. unpredictable...

The specific fuel consumption for a petrol engine first decreases with increase in fuel air ratio and then increases with further increase in fuel air ratio. The minimum value occurs in the range of__________________?

A. lean mixture B. chemically correct mixture C. rich mixture D. unpredictable E. none of the above...