silicon carbide
aluminium oxide
sand stone
diamond
✅ The correct answer is option B.
Mechanical Engineering MCQs
A steel alloy containing 36% nickel is called
stainless steel
high speed steel
invar
heat resisting steel
✅ The correct answer is option C.
Strain is equal to (where l = Original length, and δl = Change in length)
l/δl
δl/l
l.δl
l + δl
✅ The correct answer is option B.
Free pedal play in car clutches is about
15 mm
25 mm
40mm
60 mm
✅ The correct answer is option B.
The most efficient section of a channel is
triangular
rectangular
square
trapezoidal
✅ The correct answer is option D.
In electric resistance welding, pressure is applied just after the completion of current.
TRUE
FALSE
✅ The correct answer is option A.
The main purpose of a boring operation, as compared to drilling, is to
drill a hole
finish the drilled hole
correct the hole
enlarge the existing h
✅ The correct answer is option D.
Cold working requires much higher pressure that hot working.
Correct
Incorrect
✅ The correct answer is option A.
In vibration isolation system, if ω/ωn < 2, then for all values of damping factor, the trans-missibility will be (where ω = Angular speed of the system, ωn = Natural frequency of vibration of the system)
less than unity
equal to unity
greater than unity
zero
✅ The correct answer is option C.
Due to slip of belt, the velocity ratio of the belt drive increases.
Yes
No
✅ The correct answer is option B.