A single ply leather belt running at a belt velocity of 300 ft/min is likely to transmit per inch of width
A.1.5 HP
B.3.0 HP
C.4.0 HP
D.5.0 HP
E.6.0 HP
Category: Mechanical Engineering Mcqs
Multistage centrifugal pumps are used
A.To produce high heads
B.To give high discharge
C.A and B above together
D.To pump viscous liquids
E.None of the above
The ratio of water vapour to the mass of dry air in a given mixture is known as
A.Humidity ratio
B.Relative humidity
C.Degree of saturation
D.Any of the above
E.None of the above
Buoyant force is
A.The resultant force on a body due to the fluid surrounding it
B.The resultant force acting on a floating body
C.The force necessary to maintain equilibrium of a submerged body
D.A non-vertical force on symmetrical bodies
E.Equal to the volume of liquid displaced
The level of oil in engine cylinder should be checked when the engine is
A.Not running
B.Running
C.During starting
D.During cranking
E.None of the above
In any practical refrigeration system the maintenance of low temperature and the discharge of this heat at
A.higher temperature
B.lower temperature
C.same temperature
D.none of the above
Most of the mopeds in India have capacity of
A.10 c.c.
B.50 c.c.
C.150 c.c.
D.174 c.c.
E.250 c.c.
Reduced pressure is
A.always less than atmospheric pressure
B.always unity
C.an index of molecular position of gas
D.dimensionless
The index of performance of a refrigerating system is called
A.efficiency
B.effectiveness
C.coefficient of performance
D.drop in temperature
