A. 92%
B. 68%
C. 52%
D. 34%
E. 25%.
The thermal efficiency of a diesel engine is of the order of_________________? Read More »
I.C. Engines A. 6 to 12 volts
B. 240 volts
C. 1000 volts
D. 20,000 volts
E. 80,000 volts
The ignition coil in diesel engines produces voltage of the order of________________? Read More »
I.C. Engines A. increase the knocking tendency
B. decrease the knocking tendency
C. not affect the knocking tendncy
D. increase or decrease knocking tendency depending on strenght and time of spark
E. unpredictable
In petrol engines, advancing the spark timing will_______________? Read More »
I.C. Engines A. ignition coil
B. ignition coil and distributor
C. ignition coil and condenser
D. ignition coil and contact breaker
E. ignition coil, contact breaker and con-denser
A. lean mixture
B. theoretically correct mixture
C. rich mixture
D. any type of mixture
E. lean/rich mixture depending upon capacity of engine
A. governor
B. crank shaft
C. gear box
D. flywheel
E. timing spark properly
Power impulses from an I.C. engine are somoothed out by__________________? Read More »
I.C. Engines A. same level
B. slightly higher level
C. slightly lower level
D. may be anywhere
E. varies from situation to situation
A. 0.85
B. 1
C. 1.1 to 1.3
D. 1.2 to 1.5
A. increase the knocking tendency
B. decrease the knocking tendecny
C. not affect the knocking tendency
D. increase or decrease knocking tendency depedning on strength and time of spark
E. unpredictable
In petrol engine, increase of cooling water temperature will_________________? Read More »
I.C. Engines A. lower than the coldest atmospheric temperature at which oil is to be pumped
B. higher than above
C. has no such relation
D. more than 100°C
E. none of the above
The pour point of diesel oil must be_________________? Read More »
I.C. Engines