Belt slip may occur due to
A.Heavy load
B.Loose belt
C.Driving pulley too small
D.Any of above
E.None of above
Category: Machine Design Mcqs
Which process will improve the fatigue life of a part?
A.Electroplating
B.Chemical coating
C.Electrocoating
D.Polishing
E.Shot peening
Size of rivet is specified by
A.Shape
B.Diameter of head
C.Shank diameter
D.Weight
E.Volume
Ball bearing type screws are generally used
A.In bench vices
B.In screw jacks
C.In earthmoving machinery
D.Steering mechanisms
E.None of the above
In above problem the cone pitch angle of the pinion will be
A.tan-1 0.5
B.tan-1 2.0
C.sin-1 0.5
D.sin-1 2.0
E.cos-1 0.5
Induction hardening of components in done
A.To increase hardness at the centre
B.To increase the hardness of the core
C.To increase hardness uniformly
D.To increase hardness on the surface only
E.To increase hardness at a spot only
Snap head rivets are used in
A.Structural work
B.Ship building
C.Aircraft body
D.Any of the above
E.None of the above
The value of Young’s modulus of elasticity in ascending order for glass, lead, phosphor bronze, steel and wood is
A.Wood, phosphor bronze, lead glass steel
B.Wood, glass, phosphor bronze, lead steel
C.Wood, glass, lead, phosphor bronze, steel
D.Wood, lead, glass, phosphor bronze, steel
E.Wood, phosphor bronze, glass, lead, steel
In case of a Saddle key
A.The key way is cut in shaft only
B.The key way is cut in both shaft and hub
C.The key is welded to shaft
D.The key ways is cut in hub only
E.The key is made of flexible material
