For a closed system, the difference between the heat added to the system and the work done by the system is equal to the change in
A.enthalpy
B.entropy
C.temperature
D.internal energy
Category: Mechanical Engineering Mcqs
In V-belt drive the belt touches
A.At bottom
B.At sides only
C.Both at bottom as well as sides
D.Anywhere
E.None of the above
The depth of oil having specific gravity 0.6 to produce a pressure of 3.6 kg/cm2 will be
A.40 m of oil
B.36 m of oil
C.50 m of oil
D.60 m of oil
E.120 m of oil
Brinell and Vickers hardness values are practically identical upto a hardness of
A.10
B.30
C.100
D.300
E.600
A starting motor should have capacity to generate power equal to
A.IHP
B.BHP
C.IHP-BHP
D.Friction horse power
E.Friction horse power at cranking r.p.m
A point on a link connecting double slider crank chain, traces a
A.Straight line path
B.Circular path
C.Parabolic path
D.Hoperbolic path
E.Elliptical path
A regenerator in a gas turbine
A.Reduces heat loss in exhaust
B.permits use of higher compression ratio
C.Improves thermal efficiency
D.Permits use of fuels of inferior quality
E.None of the above
Equilibrium exists between
A.Buyers and sellers
B.Supply and demand
C.Price and quality
D.Quantity and quantity
E.All of the above
Loam moulds are
A.Used for very small articles
B.Used for symmetrical castings
C.Used in centrifugal castings
D.Used for large castings
E.Made out of wet sand and then skin dried
The limiting values of Poisson’s ratio are
A.0 and 1
B.?1 and +1
C.?0.5 and +0.5
D.?1 and +0.5
