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.Management Sciences
Category: I.C. Engines
In the opposed piston diesel engine, the combustion chamber is located________________?
A. above the piston (/;) below the piston
C. between the pistons
D. any when
E. there is no such criterion
A 5 BHP engine running at full load would consume diesel of the order of_________________?
A. 0.3 kg/hr
B. 1 kg/hr
C. 3 kg/hr
D. 5 kg/hr
E. 10 kg/hr
Which of the following is the lightest and most volatile liquid fuel________________?
A. diesel
B. kerosene
C. fuel oil
D. gasoline
E. lub oil
Ignition timing of a multicylider petrol engine can be adjusted by_________________?
A. rotating the crank
B. adjusting the spark plug gap
C. adjusting ignition coil position
D. rotating the distributor
E. delaying the spark by increasing capacitor in ignition circuit
Power impulses from an I.C. engine are somoothed out by__________________?
A. governor
B. crank shaft
C. gear box
D. flywheel
E. timing spark properly
The function of a fuel pump in a petrol pump is to______________________?
A. inject fuel in cylinder
B. supply fuel when carburettor fails
C. pump fuel so that it reaches carburettor (to improve thermal efficiency)
D. does not exist
The specific fuel consumption per BHP hour for diesel engine is approximately___________________?
A. 0.15 kg
B. 0.2 kg
C. 0.25 kg
D. 0.3 kg
E. 0.35 kg
The ignition coil in diesel engines produces voltage of the order of________________?
A. 6 to 12 volts
B. 240 volts
C. 1000 volts
D. 20,000 volts
E. 80,000 volts
The pressure and temperature at the end of compression stroke in a petrol engine are of the order of___________________?
A. 4 – 6 kg/cm2 and 200 – 250°C
B. 6 – 12 kg/cm2 and 250 – 350°C
C. 12 – 20 kg/cm2 and 350 – 450°C
D. 20 – 30 kg/cm2 and 450 – 500°C
E. 30 – 40 kg/cm2 and 500 – 700°C
High carbon content in diesel oil used for diesel engine leads to_________________?
A. production of highly corrosive gases corroding the cylinder walls and exhaust system
B. excessive engine wear
C. damaging of both the storage tank and the engine
D. deposition on engine parts
E. none of the above.
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