A starting motor should have capacity to generate power equal to
A.IHP
B.BHP
C.IHP-BHP
D.Friction horse power
E.Friction horse power at cranking r.p.m
Category: Heat Engines Mcqs
A regenerator in a gas turbine
A.Reduces heat loss in exhaust
B.permits use of higher compression ratio
C.Improves thermal efficiency
D.Permits use of fuels of inferior quality
E.None of the above
For dry saturated steam the value of adiabatic index n is taken as
A.1.68
B.1.41
C.1.35
D.1.135
The efficiency of jet engine is higher at
A.Lower altitudes
B.Higher altitude
C.Low speeds
D.High speeds
E.None of the above
In multistages turbines by introducting reheating
A.Thermal efficiency improves
B.The output of turbine increases
C.Work done by compressor reduces
D.The ratio compressor compressor work/turbine output decreases
E.None of the above
In a Diesel engine the duration between the time of injection and time of ignition is called
A.Period of ignition
B.Explosion period
C.Pre-ignition period
D.Delay period
E.Burning period
In multistage compression, perfect intercooling means
A.Temperature of air at inlet to subsequent stages is equal to initial temperature
B.Temperature of air at inlet to subsequent stages is less than initial temperature
C.Temperature of air at inlet to subsequent stages should be zero
D.Temperature of inlet to subsequent stages should be equal to the final temperature
E.None of the above
Crankcase explosion occurs in
A.Four stroke Cl engines
B.Two stroke Cl engines
C.Four stroke SI engines
D.Two stroke SI engines
E.Gas engines
Prony brake is used for testing of
A.Small engines
B.Large engines
C.Engines having small flywheel
D.Slow speed engines
E.High speed engines
A run-of-river hydro-electric station is one which is
A.Located on a small river
B.Located on a river which does not flow throughout the year
C.Located on a steam flow without water storage
D.Locted on a steam flow with large water storage
E.None of the above
