The condition of refrigerant before and after compression in vapour compression cycle is
A.Wet vapour, cry saturated vapour
B.Liquid, wet vapour
C.Dry saturated vapour, superheated vapour
D.Dry saturated vapour, liquid
E.Wet vapour, wet vapour
Category: Mechanical Engineering Mcqs
For a beam of uniform strength if its depth is maintained constant, then its width will vary in proportion to
A.Bending Moment, BM
B.(BM)2
C.(BM)
D.(BM)3
E.None of the above
The amount of machining allowance on castings depends on
A.size and shape of the casting
B.casting orientation
C.characteristics of the metal
D.all of the above
Which of the following key is not used in railway tracks?
A.Stuart key
B.Morgan key
C.Cotter key
D.Woodruff key
Dissociation is
A.Same is combustion
B.Process of heat liberation in which no flame exist
C.Slow combustion
D.Smokeless combustion
E.Combustion without heat
A satellite orbits around the earth due to
A.Celestial force
B.Gravitational force
C.Centrifugal force
D.Centripetal force
E.All of the above
The cross-section of a sprue
A.square
B.circular
C.rectangular
D.any of the above
Which conduit entrance is expected to have least loss coeffieient?
A.Inward projecting entrances
B.Square bell mouth entrances
C.Circular bell mouth entrances
D.Slightly rounded entrance
E.Square cornered entrance
The weakness section of a diamond riveting is the section which passes through
A.The first row
B.Row with maximum rivets
C.Middle row
D.End row with one rivet only
E.All rows have same strength
If performance of SI engines of different manufacture having different capacities, sizes and systems are to be compared the common parameter would be
A.Engine cylinder diameter
B.B.H.P.
C.Speed
D.Mean effective pressure
E.Weight of engine
