171. The property of a material which enables it to resist fracture due to high impact loads, is called toughness.
TRUE
FALSE
✅ The correct answer is option A.
Machine Design MCQs
172. The average shear stress in the hollow shaft is smaller than the average shear stress in the solid shaft.
TRUE
FALSE
✅ The correct answer is option A.
173. The malleable material should be plastic but is not essential to be so strong.
Agree
Disagree
✅ The correct answer is option A.
174. A connecting rod should be
strong in buckling about X-axis
strong in buckling about Y-axis
equally strong in buckling about X-axis and Y-axis
any one of the above
✅ The correct answer is option C.
175. The parallel fillet welded joints are designed for compressive strength.
Agree
Disagree
✅ The correct answer is option B.
176. When the length of the journal is equal to the diameter of the journal, then the bearing is said to be a
short bearing
long bearing
medium bearing
square bearing
✅ The correct answer is option D.
177. The diameter of washer is generally taken bigger than the nut size.
TRUE
FALSE
✅ The correct answer is option A.
178. The stress in the threaded part of the bolt will be __________ as compared to the shank.
same
higher
lower
✅ The correct answer is option B.
179. A parallel sunk key, made of steel, is equally strong in shearing and crushing.
Yes
No
✅ The correct answer is option B.
180. Cast iron pipes are mainly used
for conveying steam
in water and sewage systems
in pressure lubrication systems on prime movers
all of the above
✅ The correct answer is option B.