Internal Combustion Engines
A hydraulic ram is a device used to

To lift water from deep wells
Store the energy of water
To lift small quantity of water to a greater height when a large quantity of water is available at a smaller height
Increase the pressure of water

ANSWER DOWNLOAD EXAMIANS APP

Internal Combustion Engines
In a typical medium speed 4-stroke cycle diesel engines

Exhaust valve opens at bottom dead center and closes at top dead center
Exhaust valve opens at 35° before bottom dead center and closes at 20° after top dead center
Exhaust valve opens just after bottom dead center and closes just before top dead center
May open and close anywhere

ANSWER DOWNLOAD EXAMIANS APP

Internal Combustion Engines
If V₁ is the jet velocity and V₀ is the vehicle velocity, then the propulsive efficiency of a rocket is given by

V₁/(V₀ + V₁)
[2(V₀/V₁)]/ [1 + (V₀/V₁)²]
(V₀/V₁)/ [1 + (V₀/V₁)²]
V₀/(V₀ + V₁)

ANSWER DOWNLOAD EXAMIANS APP

Internal Combustion Engines
In a four stroke cycle diesel engine, the exhaust valve

Opens at 30° before bottom dead centre and closes at 10° after top dead centre
Opens at bottom dead centre and closes at top dead centre
Opens at 30° after bottom dead centre and closes at 10° before top dead centre
May open and close anywhere

ANSWER DOWNLOAD EXAMIANS APP
MORE MCQ ON Internal Combustion Engines