Fuel which detonates easily is
A.Toulene
B.Benzene
C.Iso-octane
D.n-Heptane
E.Alcohol
Category: Heat Engines Mcqs
An exciter is a
A.D.C. motor
B.D.C.generator
C.A.C.generator
D.Synchronous motor
E.None of the above
An average percentage of Carbon and Hydrogen in Petrol may be roughly given as
A.50% C, 50% H2
B.85% C, 150% H2
C.15% C, 85% H2
D.70% C, 70% H2
E.60% C, 40% H2
Three states of matter are distinguished with repect to molecules by
A.The number
B.The atoms in molecules
C.The orientation of molecules
D.Characteristics of the motion of molecules
E.Energy of molecules
The function of a receiver in compressor installations is
A.To collect compressed air
B.To dempen pulsations or pressure waves incompressor discharge
C.To reduce temperature of compressed air
D.To reduce moisture content of compressed air
E.None of the above
The enthalpy of vaporisation is minimum at
A.0?C
B.100?C
C.Critical temperature
D.Absolute zero
The work done on a compressor will be least when air is taken from
A.Atmosphere
B.Source of low temperature air
C.Source of high temperature air
D.As and where available
E.A source at 0?C
The compression ratio in case of a gas turbine is of the order of
A.5
B.7
C.12
D.20
E.24
Which fuel will have least air consumption during combustion
A.Gasoline
B.Benzol
C.Spirit
D.Diesel fuel oil
E.Lubricating oil
In a Bomb calorimeter the fuel to be tested is burnt
A.At constant volume
B.At constant pressure
C.There is no consideration of volume or pressure
D.In open atmosphere
E.At constant temperature
