A V-belt having B section is generally used when the power to be transmitted is in the range
A.3-25 HP
B.25-35 HP
C.35-50 HP
D.50-75 HP
E.75-100 HP
Category: Machine Design Mcqs
The ratio of maximum shear stress to average shear stress for a circular section is
A.2
B.4
C.4?3
D.3?4
E.1?4
Which of the following key transmits power through frictional resistance only
A.Saddle key
B.Kennedy key
C.Woodruff key
D.Sunk key
E.Tangent key
In case of automobile body work the type of welding generally used is
A.Gas welding
B.Arc welding
C.Spot welding
D.Seam welding
E.Submerged are welding
In case of ductile materials the theory of elastic failure generally applied is
A.Maximum principal stress theory
B.Maximum shear stress theory
C.Maximum strain theory
D.Maximum total strain energy theory
E.Distortion energy theory
The holding power of sunk key is due to resistance which it offers in
A.Shear
B.Crushing
C.Shear and crushing
D.Tension
E.(C) and (D) above
The loading on a pinion gear is usually
A.Compression
B.Tension
C.Shear
D.Cyclic loading
E.None of the above
The maximum efficiency of a scres jack provided with square threads and angle of friction 30? will be
A.25%
B.33%
C.41%
D.47%
E.55.50%
The holding power of a saddle key is due to
A.Tensile force
B.Compressive force
C.Torsion
D.Shear force
E.Friction force
Screw parts with a right hand thread must only be stressed
A.In the direction of screwing in
B.In the direction of screwing out
C.In the direction normal to the screw axis
D.In the plane of principal axis
E.In the shear plane
