A. 30 MN/m2
B. 50 MN/m2
C. 100 MN/m2
D. 200 MN/m2
E. 300 MN/m2
A. equal to the hoop stress
B. twice the hoop stress
C. half of the hoop stress
D. one-fourth of hoop stress
E. four times the hoop stress
Longitudinal stress in a thin cylinder is__________________? Read More »
Strength of Materials A. maximum torque it can transmit
B. number of cycles it undergoes before failure
C. elastic limit up to which it resists torsion, shear and bending stresses
D. torque required to produce a twist of one radian per unit length of shaft
E. maximum power it can transmit at highest possible-speed
The torsional rigidity of a shaft is expressed by the_______________? Read More »
Strength of Materials A. bearing stresses
B. fatigue stresses
C. crushing stresses
D. resultant stresses
E. none of the above
A. maximum at periphery and zero at center
B. maximum at center
C. uniform throughout
D. average value in center
E. none of the above
Shear stress induced in a shaft subjected to tension will be__________________? Read More »
Strength of Materials A. 0°
B. 30°
C. 45°
D. 60°
E. 90°.
A. bodies having relative motion
B. two dry surfaces
C. two lubricated surfaces
D. solids and liquids
E. electrically charged particles
Coulomb friction is the friction between_____________________? Read More »
Strength of Materials A. r/2
B. r/A
C. r/%
D. 0.134 r
E. 3r/8
A. balance each other
B. cannot balance each other
C. produce moment of a couple
D. are equivalent
E. none of the above
A single force and a couple acting in the same plane upon a rigid body_________________? Read More »
Strength of Materials A. limiting friction
B. sliding friction
C. rolling friction
D. kinematic friction
E. dynamic friction
