the main cause of power loss in a transmission line is
A.Resistance
B.capacitance is negligible
C.Inductance
D.Both inductance and capacitance
E.None of the above
Category: Mechanical Engineering Mcqs
In reaction turbine the draft tube is used
A.To transport water to downstream without eddies
B.To reconvert kinetic energy to flow energy by a gradual expansion of the flow cross-section
C.To increase the effective head
D.To prevent air from entering
E.To run the turbine full
The distance between the rails of a metre gauge railway line is
A.4 ft, 6
B.3 ft, 9
C.One metre
D.0.692 metre
Least value of specific heat
A.Water
B.Ice
C.Stream
D.Air
E.Alcohol
In any transmission line, the dimensions of constants B and C are
A.ohm and ohm
B.ohm and mho
C.mho and ohm
D.mho and mho
E.None of the above
The main advantage of line organisation is
A.Well defined responsibilities at all levels
B.Effective command and control
C.Rigid discipline
D.Quick decision making at all levels
E.All of the above
If a centrifugal pump takes too much power, the cause may be
A.Low speed
B.Air in water
C.Air leakage
D.Foot valve too small
E.Heavy liquid.
Which of the following item can be conveyed using pneumatic conveyors?
A.soda ash
B.salt cake
C.carbon black
D.all of the above
The silver point temperature is
A.500?C
B.760?C
C.960.5?C
D.1100.5?C
E.1500.5?C
The ratio of maximum shear stress to average shear stress in case of a circular beam transmitting power is equal to
A.3?4
B.4?5
C.5?4
D.4?3
E.2?5
