If the intake air temperature of I.C. engine increases, its efficiency will_________________?
A. increase
B. decrease
C. remain same
D. unpredictable
E. depend on other factors
A. increase
B. decrease
C. remain same
D. unpredictable
E. depend on other factors
A. net efficiency
B. efficiency ratio
C. relative efficiency
D. overall efficiency
E. cycle efficiency
A. spark
B. injected fuel
C. heat resulting from compressing air that is supplied for combustion
D. ignition
E. combustion chamber
In a diesel engine, the fuel is ignited by___________________? Read More »
I.C. Engines A. same
B. less
C. more
D. more or less depending on power rating
E. unpredictable
A. yes
B. no
C. to some extent
D. unpredictable
E. depends on other factors
A. air used for combustion sent under pres-sure
B. forced air for cooling cylinder
C. burnt air containing products of combustion
D. air used for forcing burnt gases out of engine’s cylinder during the exhaust period
E. air fuel mixture
Scavenging air in diesel engine means___________________? Read More »
I.C. Engines A. 1/2
B. 1
C. 2
D. 4
E. 8
A. instantaneous and rapid burning of the first part of the charge
B. instantaneous atuo iginition of last part of charge
C. delayed burning of the first part of the charge
D. reduction of delay period
E. all ot the above
The knock in diesel engine occurs due to____________________? Read More »
I.C. Engines A. 1 valve
B. 2 valves
C. 3 valves
D. 4 valves
E. no valve
A diesel engine has_________________? Read More »
I.C. Engines A. it is properly designed
B. best quality fuel is used
C. can not work as it is impossible
D. flywheel size is proper
E. engine cooling is stopped