Correct
Incorrect
✅ The correct answer is option B.
Mechanical Engineering MCQs
The material in which the atoms are arranged chaotically, is called
amorphous material
mesomorphous material
crystalline material
none of these
✅ The correct answer is option A.
The tangential velocity of the water element having a free vortex is
directly proportional to its distance from the centre
inversely proportional to its distance from the centre
directly proportional to its (distance)2 from the centre
inversely proportional
✅ The correct answer is option B.
If the coefficient of discharge is 0.6, then the discharge over a right angled notch is
0.417 H5/2
1.417 H5/2
4.171 H5/2
7.141 H5/2
✅ The correct answer is option B.
The intercooler pressure, for minimum work required, for a two stage reciprocating air compressor, is given by (where p1 = Intake pressure of air, p2 = Intercooler pressure, and p3 = Delivery pressure of air)
p2 = p1 x p3
p2 = p1/p3
p2 = p1 x p3
p2 = p3/p1
✅ The correct answer is option C.
Slack represents the difference between the
earliest completion time and latest allowable time
latest allowable time and earliest completion time
earliest completion time and normal expected time
latest allowable time
✅ The correct answer is option A.
The centre of gravity of a semi-circle lies at a distance of __________ from its base measured along the vertical radius.
3r/ 8
4r/ 3π
8r/3
3r/4π
✅ The correct answer is option B.
For unsaturated air, the dew point temperature is __________ wet bulb temperature.
equal to
less than
more than
✅ The correct answer is option B.
In a __________ , two or more operations are performed simultaneously at the single stroke of the ram.
simple die
progressive die
combination die
compound die
✅ The correct answer is option B.
For air conditioning the operation theatre in a hospital, the percentage of outside air in the air supplied is
zero
20
50
100
✅ The correct answer is option D.