d + 17 mm
2 d + 13 mm
2 d + 20 mm
3.5 d
✅ The correct answer is option D.
Machine Design MCQs
In a butt welded joint, the size of weld is __________ the throat of weld.
0.5 times
equal to
2 times
double
✅ The correct answer is option B.
The material used for brake lining should have __________ coefficient of friction.
low
high
✅ The correct answer is option B.
The velocity factor for ordinary cut gears operating at velocities upto 12.5 m/s is equal to
✅ The correct answer is option B.
In a journal bearing, the load on the bearing is __________ to the axis of the journal.
parallel
perpendicular
✅ The correct answer is option B.
Idler pulley is used for
increasing velocity ratio
for applying tension
changing the direction of motion of belt
all of these
✅ The correct answer is option B.
In the levers of first type, the mechanical advantage is __________ one.
less than
equal to
more than
✅ The correct answer is option C.
A cotter joint is used to transmit
axial tensile load only
axial compressive load only
combined axial and twisting loads
axial tensile or compr
✅ The correct answer is option D.
Lewis form factor for composite and full depth involute system is (where T = Number of teeth)
none of these
✅ The correct answer is option A.
A hollow shaft will transmit a __________ torque than a solid shaft of the same mass and same material.
smaller
greater
✅ The correct answer is option B.