tensile strength
compressive strength
bending strength
shear strength
✅ The correct answer is option A.
Machine Design MCQs
Which of the following is an antifriction bearing?
journal bearing
pedestal bearing
collar bearing
needle bearing
✅ The correct answer is option D.
The expansion joint is mostly used for pipes which carry steam at __________ pressures.
low
high
✅ The correct answer is option B.
A shaft is designed on the basis of rigidity and stiffness.
Correct
Incorrect
✅ The correct answer is option A.
In a boundary lubricated bearing, there is a __________ of lubricant between the journal and the bearing.
thick film
thin film
✅ The correct answer is option B.
In a flat belt drive, if the slip between the driver and belt is 1 %, between the belt and follower is 3% and driver and follower pulley diameters are equal, then velocity ratio of the drive will be
0.96
0.97
0.98
0.99
✅ The correct answer is option A.
When a shaft is subjected to combined twisting moment (T) and bending moment (M), then the equivalent bending moment is equal to
✅ The correct answer is option C.
If the helix angle of a helical gear is increased, the load carrying capacity of the tooth increases.
Correct
Incorrect
✅ The correct answer is option B.
When an open coiled helical compression spring is subjected to an axial compressive load, the maximum shear stress induced in the wire is (where D = Mean diameter of the spring coil, d = Diameter of the spring wire, K = Wahl’s stress factor, and W = Axial compressive load on the spring)
✅ The correct answer is option D.
The metal suitable for bearings subjected to heavy loads is
silicon bronze
white metal
monel metal
phosphor bronze
✅ The correct answer is option B.