Yes
No
✅ The correct answer is option B.
Mechanical Engineering MCQs
The centre of gravity of a quadrant of a circle lies along its central radius (r) at a distance of
0.5r
0.6r
0.7r
0.8r
✅ The correct answer is option B.
V-block is used to
check the trueness of flat surfaces
locate centres of round rods
check the surface roughness
none of these
✅ The correct answer is option D.
A process used for making thin phosphate coating on steel is called parkerising.
Correct
Incorrect
✅ The correct answer is option A.
In high speed steels, manganese is used to tougher the metal and to increase its
yield point
critical temperature
melting point
hardness
✅ The correct answer is option B.
According to Indian standard specifications, a plain carbon steel designated by 40C8 contains carbon
0.20 to 0.40%
0.35 to 0.45%
0.40 to 0.60%
none of these
✅ The correct answer is option B.
The mechanism forms a structure, when the number of degrees of freedom (n) is equal to
0
1
2
-1
✅ The correct answer is option A.
During sensible heating of air __________ decreases.
wet bulb temperature
relative humidity
dry bulb temperature
specific humidity
✅ The correct answer is option B.
The radial distance of a tooth from the pitch circle to the top of the tooth is called
dedendum
addendum
clearance
working depth
✅ The correct answer is option B.
The endurance limit for a mirror polished material will be __________ as compared to unpolished material.
same
less
more
✅ The correct answer is option C.