1. The shear modulus of resilience is proportional to
shear stress
(shear stress)2
(shear stress)3
(shear stress)4
✅ The correct answer is option B.
Machine Design MCQs
2. The longitudinal stress is __________ of the circumferential stress.
one-half
two-third
three-fourth
double
✅ The correct answer is option A.
3. The Lewis equation for gear tooth with involute profile predicts the static load capacity of cantilever beam of uniform strength.
TRUE
FALSE
✅ The correct answer is option A.
4. Which of the following spring is used in mechanical wrist watch?
Helical compression spring
Spiral spring
Torsion spring
Bellevile spring
✅ The correct answer is option C.
5. In a multiple V-belt drive, if one of the belts break, then
only the broken belt is replaced
the entire set of belts is replaced
the broken belt and the belt on either side of it, is replaced
the broken belt need n
✅ The correct answer is option B.
6. In thrust bearings, the load acts
along the axis of rotation
parallel to the axis of rotation
perpendicular to the axis of rotation
in any direction
✅ The correct answer is option A.
7. When carbon in the cast iron is principally in the form of graphite, the cast iron will be of
grey colour
white colour
yellow colour
brown colour
✅ The correct answer is option A.
8. A connecting rod is designed as a
long column
short column
strut
all of these
✅ The correct answer is option C.
9. A leaf spring in automobiles is used
to apply forces
to measure forces
to absorb shocks
to store strain energy
✅ The correct answer is option C.
10. When a shaft is subjected to combined twisting moment (T) and bending moment (M), then the equivalent twisting moment is equal to
✅ The correct answer is option B.