A. increase key length
B. increase key depth
C. increase key width
D. double all the dimensions
E. none of the above
Related Mcqs:
- If the radius of wire stretched by a load is doubled, then its Young’s modulus will be_______________?
A. doubled
B. halved
C. become four times
D. become one-fourth
E. remain unaffected - For steel, the ultimate strength in shear as compared to in tension is nearly _________________?
A. same
B. half
C. one-third
D. two-third
E. one-fourth - Shear stress induced in a shaft subjected to tension will be__________________?
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 - The change in the unit volume of a material under tension with increase in its Poisson’s ratio will ________________?
A. increase
B. decrease
C. remain same
D. increase initially and then decrease
E. unpredictable - A key is subjected to side pressure as well at shearing forces. These pressures are called_________________?
A. bearing stresses
B. fatigue stresses
C. crushing stresses
D. resultant stresses
E. none of the above - A boiler shell 200 cm diameter and plate thickness 1.5 cm is subjected to internal pressure of 1.5 MN/m , then the hoop stress will be_________________?
A. 30 MN/m2
B. 50 MN/m2
C. 100 MN/m2
D. 200 MN/m2
E. 300 MN/m2 - The effort required to lift a load W on a screw jack with helix angle a and angle of friction <j) is equal to__________________?
A. Wtan(a + )
B. Wtan(a-)
C. Wcos(a + )
D. Wsin(a + )
E. W (sin a + cos ). - In the lever of third order, load W, effort P and fulcrum F are oriented as follows_________________?
A. W between P and F
B. F between W and P
C. P between W and F
D. W, P and F all on one side
E. none of the above - A riveted joint in which the number otrivets decrease from innermost to outer most row is called__________________?
A. chain riveted joint
B. diamond riveted joint
C. criss-cross riveted joint
D. zig-zag riveted joint
E. none of the above - Which of the following has no unit __________________?
A. kinematic viscosity
B. surface tension
C. bulk modulus
D. strain
E. elasticity
