stainless steel
aluminium
copper
brass
✅ The correct answer is option C.
Mechanical Engineering MCQs
Which of the following statement is correct?
The expansion of steam in a nozzle follows Rankine cycle.
The friction in the nozzle increases the dryness fraction of steam.
The pressure of steam at throat is called critical pressure.
all of the above
✅ The correct answer is option D.
The increase in pressure in a vane blower takes place first due to compression and then due to back flow of air.
Correct
Incorrect
✅ The correct answer is option A.
The velocity of sliding __________ the distance of the point of contact from the pitch point.
is directly proportional to
is inversely proportional to
is equal to cos φ multiplied by
does not depend upon
✅ The correct answer is option A.
De-Laval turbine is a
single rotor impulse turbine
multi-rotor impulse turbine
impulse reaction turbine
none of these
✅ The correct answer is option A.
In radial tyres
one ply layer runs diagonally one way and another layer runs diagonally the other way
all plies run parallel to one another and vertical to tyre bead
inner tubes are always used
none of these
✅ The correct answer is option B.
Tungsten when added to steel __________ the critical temperature.
does not effect
lowers
raises
✅ The correct answer is option C.
The fire tubes in a Scotch marine boiler are
horizontal
vertical
inclined
✅ The correct answer is option A.
In up milling, the thickness of chip is
minimum at the beginning of the cut and maximum at the end of the cut
maximum at the beginning of the cut and minimum at the end of the cut
uniform throughout the cut
none of these
✅ The correct answer is option A.
The acceleration of the particle moving with simple harmonic motion is inversely proportional to the displacement of the particle from the mean position.
Yes
No
✅ The correct answer is option B.