Which type of conductors are used for transmitting bulk of power at high voltage?
A.ACSR
B.Copper
C.Cadmium copper
D.Galvanised steel
E.Any of the above
Category: Mechanical Engineering Mcqs
Which of the following can be used for starting a 1000 H.P. diesel engine?
A.Battery
B.Shunt motor
C.Small petrol engine
D.Compressed air
E.Any of the above
The thicker sections of casting will have a tendency to have
A.grains coarser than thinner sections
B.grains finer than thinner sections
C.grains of sme size as rest of the casting
D.none of the above
The resultant of coplaner parallel forces is found by load line diagram, while the position is found by
A.link polygen
B.funicular polygon
C.string polygon
D.any of the above
For zenith angles from 0? to 70? at sea level air mass m is given by where ?z is zenith angle
A.m = cos ?z
B.m = 1/cos ?z
C.m = sin ?z
D.m = 1/sin ?z
Malleable castings are used for
A.boilers
B.Automobiles
C.Elevators
D.all of the above
In a refrigeration system, if the compressor short cycles, the probable cause could be
A.Intermittent contact in electric control circuit
B.Dirty or iced evaporator
C.Lack of refrigerant
D.Overchange of refrigerant
E.Any of the above
In a nozzle, once the critical conditions are achieved at the throat, than which of the following remains constant:
A.Density of fluid
B.Velocity of fluid
C.Flow rate
D.All of the above
Solubility of a gas in a liquid at small concentration is represented in
A.Henry’s law
B.Clausius Clapeyron equation
C.Raoult’s law
D.Dalton’s law
E.None of the above
Any process of heating and cooling steel that produces a rounded or globular from of carbide is known as
A.Nomalizing
B.Ultra hardening
C.Drawing
D.Nitriding
E.Spheroidizing
