I.C. Engines

The part load efficiency of a carburettor is,___________________? A. Maximum B. OptimumC. Poor D. Constant

Deposition of carbon in petrol engine cylinder would result in increase of__________________? A. clearance volume B. swept volumeC. compression ratio D. volumetric efficiency E. mean effective pressure…

If petrol is used in a diesel engine, then______________? A. higher knocking will occur B. efficiency will be low C. low power will be produced D. black smoke will be produced E. lot of fuel will remain unburnt…

In turbulence chamber in diesel engine__________________? A. the shape and layout of the piston crown, the inlet port, and the valve produce the turbulent effect of fuel mixtureB. fuel is injected into an auxiliary chamber that is…

Scavenging air is supplied to a two-stroke engine at a density greater than that of atmosphere. This means the engine is__________________? A. SuperchargedB. Not supercharged C. Charged D. Supercharged provided its speed is low…

A two stroke crank compressed engine has following ports in the cylinder_______________? A. suction port and exhaust port B. transfer port only C. suction port and transfer port D. transfer port and exhaust portE. suction port,…

A two stroke engine is usually identified by__________________? A. size of flywheel B. weight of engine C. type of lubrication systemD. absence of valves E. location of fuel tank

In the case of compression ignition engine, the %age of CO in exhaust gases is________________? A. Zero B. 5-10% C. Depends on load D. Considerable percent

The thermal efficiency of a semi-diesel cycle having fixed compression ratio and fixed quantity of heat, with increase in pressure ratio will_______________? A. increase B. decrease C. remain unaffected D. increase/decrease…

In precombustion chamber in diesel engine________________? A. The shape and layout of the pistion crown, the inlet port, and the valve produce the turbulent effect of fuel mixture B. Fuel is injected into an auxiliary chamber that…