Mechanical Engineering MCQs

A. Feed petrol into cylinder
B. Govern the engine
C. Break up and mix the petrol with air
D. Heat up the charge to cylinder

A. Concentric type
B. Eccentric type
C. Horizontal type
D. Vertical type

A. high compression ratio
B. low compression ratio
C. low volumetric efficiency
D. minimum turbulence

A. Clearance volume
B. Swept volume
C. Compression ratio
D. Volumetric efficiency

A. Maximum
B. Optimum
C. Poor
D. Constant

A. The shape and layout of the piston crown, the inlet port, and the valve produce the turbulent effect of fuel mixture
B. Fuel is injected into an auxiliary chamber that is separated from the cylinder by an orifice or throat
C. Only a part of air charge is contained in an auxiliary chamber in which the fuel starts to burn with insufficient air which due to explosion tendency mixes thoroughly into main cylinder charge
D. There are no valves

A. Higher knocking will occur
B. Efficiency will be low
C. Low power will be produced
D. Black smoke will be produced

A. suction port and exhaust port
B. transfer port only
C. suction port and transfer port
D. transfer port and exhaust port

A. Supercharged
B. Not supercharged
C. Charged
D. Supercharged provided its speed is low

A. Size of flywheel
B. Weight of engine
C. Type of lubrication system
D. Absence of valves