Category: I.C. Engines

A. the ratio of volumes of air in cylinder before compression stroke and after compression stroke
B. volume displaced by piston per stroke and clearance volume in cylinder
C. ratio of pressure after compression and before compression
D. swept volume/cylinder volume
E. cylinder volume/swept volume

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

A. Diesel cycle
B. Otto cycle
C. Dual combustion cycle
D. Special type of air cycle
E. Carnot cycle

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

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 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
B. lower
C. remain unaffected
D. unpredictable
E. none of the above

A. 1 m3
B. 5 m3
C. 5-6 m3
D. 9-10 m3
E. 15-18 m3

A. supplying the intake of an engine with air at a density greater than the density of the surrounding atmosphere
B. providing forced cooling air
C. injecting excess fuel for raising more load
D. supplying compressed air to remove combustion products fully
E. raising exhaust pressure

A. 0.2 to 1.0 liter per minute per h.p.
B. 1 to 3 liters per minute per h.p.
C. 5 to 10 liters per minute per h.p
D. 10 to 20 liters per minute per h.p.
E. 20-30 liters per minute per h.p

A. 0.15 kg
B. 0.2 kg
C. 0.25 kg
D. 0.3kg
E. 0.35 kg