I.C. Engines

A. 1500 rpm
B. 750 rpm
C. 3000 rpm
D. any value independent of engine speed
E. none of the above

A. 2-stroke cycle engines
B. 4-stroke cycle engines
C. aeroplane engines
D. diesel engines
E. high efficiency engines

A. the friction is high
B. the friction is unpredictable
C. the small difference in cooling water temperature or in internal friction has a disproportionate effect
D. the engine is rarely operated
E. none of the above

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

A. increase linearly
B. decrease linearly
C. increase parabolically
D. decrease parabolically
E. first decrease linearly and then increase parabolically

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

A. fuelinjection starts at 10° before to dead center and ends at 20° after tor dead center
B. fuel injection starts at top dead center and ends at 20° after top dead center
C. fuel injection starts at just before top dead center and ends just after top deac center
D. may start and end anywhere
E. none of the above

A. air aione
B. air and fuel
C. air and lub oil
D. fuel alone
E. air, fuel and lub oil

A. peak pressure
B. rate of rise of pressure
C. rate of rise of temperature
D. peak temperature
E. rate of rise of horse-power

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