I.C. Engines

A. chemically correct mixture
B. lean mixture
C. rich mixture for idling
D. rich mixture for over loads
E. the ratio used at full rated parameters

A. SEA 30
B. SAE 4£
C. SAE 50
D. SAE 70
E. SAE 80

A. controlling valve opening/closing
B. governing
C. injection
D. carburettion
E. scavenging and supercharging

A. minimum temperature to which oil is heated in order to give off inflammable vapours in sufficient quantity to ignite momentarily when brought in contact with a flame
B. temperature at which it solidifies or congeals
C. it catches fire without external aid
D. indicated by 90% distillation temperature i.e., when 90% of sample oil has distilled off
E. temperature at which it flows easily

A. 9 : 1
B. 12 : 1
C. 15 : 1
D. 18 : 1
E. 20: 1

A. 1 : 1
B. 5 : 1
C. 10:1
D. 15 : 1
E. 20 : 1

A. diesel
B. kerosene
C. fuel oil
D. gasoline
E. lub oil

A. upto 25%
B. upto 35%
C. upto 50%
D. upto 75%
E. upto 100%.

A. maximum pressure developed
B. minimum pressure
C. instantaneous pressure at any instant
D. exhaust pressure
E. average pressure

A. exhaust valve opens at 35° before bot-tom dead center and closes at 20° after top dead center
B. exhaust valve opens at bottom ‘dead center and closes at top dead center
C. exhaust valve opens just after bottom dead center and closes just before top dead center
D. may open and close anywhere
E. none of the above is true