501. A lap joint is always in single shear.
Yes
No
✅ The correct answer is option A.
Machine Design MCQs
502. A bolt of M 24 x 2 means that
the pitch of the thread is 24 mm and depth is 2 mm
cross-sectional area of the threads is 24 mm2
the nominal diameter of bolt is 24 mm and pitch is 2 mm
the effective diameter
✅ The correct answer is option C.
503. A material is stressed within elastic limit and its linear strain is double as compared to lateral strain. The ratio of its Bulk modulus to Young’s modulus will be equal to one.
Correct
Incorrect
✅ The correct answer is option B.
504. The load placed at the top of the screw in a mechanical screw jack is prevented from rotation by providing a swivelling mechanism.
Correct
Incorrect
✅ The correct answer is option A.
505. Two shafts will have equal strength, if
diameter of both the shafts is same
angle of twist of both the shafts is same
material of both the shafts is same
twisting moment of bot
✅ The correct answer is option D.
506. In order to ensure self locking in a screw jack, it is essential that helix angle is __________ friction angle.
larger than
smaller than
equal to
✅ The correct answer is option B.
507. The coefficient of friction between the belt and pulley depends upon the
material of belt and pulley
slip of belt
speed of belt
all of these
✅ The correct answer is option D.
508. The difference between the tooth space and the tooth thickness as measured on the pitch circle, is called
working depth
clearance
face width
backlash
✅ The correct answer is option D.
509. The taper on key is given on
bottom side only
top side only
on both sides
any side
✅ The correct answer is option B.
510. The material generally used for air-craft components is
mild steel
high speed steel
stainless steel
aluminium
✅ The correct answer is option D.