Which of the following material has the best conductivity?
A.Copper
B.Aluminium
C.Cadmium copper
D.ACSR
Category: Energy Conversion Mcqs
The protection against lightning is provided by
A.Earthing screen
B.Overhead ground wires
C.Lightning arresters
D.Surge diverters
E.Any of the above
Steam pressure of super-thermal power plant is
A.15 kg/cm2
B.50 kg/cm2
C.100 kg/cm2
D.170 kg/cm2
E.200 kg/cm2
Which of the following is the advantage of de transmission?
A.Absence of line inductance and capacitance problems
B.No skin effects
C.For the same working voltage the potential stress on the insulation is less
D.No stability problems
E.All of the above
The string efficiency in an ac system is
A.Zero
B.25%
C.50%
D.70.70%
E.100%
The compressor used in gas turbine is usually
A.Single stage reciprocating compressor
B.Multistage reciprocating compressor
C.Screw compressor
D.Lobe type compressor
E.Multistage axial flow compressor
First aid for an electric shock victim is
A.Bandage
B.Massage
C.Pouring water on body
D.Rubbing the skin
E.Artificial respiration
Which of the following gives nearly monochromatic light?
A.Sodium vapour lamp
B.GLS lamp
C.Fluurescent tube
D.Mercury vapour lamp
E.None of the above
Diesel engine fuels are rated by
A.Octane number
B.HUCR
C.Cetane number
D.CFR number
E.Calorific value
The chemical composition of coal is given by
A.Proximate analysis
B.Ultimate analysis
C.Orsat analysis
D.All of the above
E.None of the above
