10-2 m2/s
10-3 m2/s
10-4 m2/s
10-6 m2/s
✅ The correct answer is option C.
Mechanical Engineering MCQs
In grinding irregular, curved, tapered, convex and concave surfaces, the grinder used is
cylindrical grinder
internal grinder
surface grinder
tool and cutter grinde
✅ The correct answer is option C.
A mandrel is used to hold
an eccentric work
a heavy work
a thin work
none of these
✅ The correct answer is option D.
The best fuels for compression ignition engines are
straight chain paraffins
aromatics
branched chain paraffins
napthalenes
✅ The correct answer is option D.
Clearance ratio is the ratio of
clearance volume to the swept volume
clearance volume to the volume at cut-off
volume at cut-off to the swept volume
swept volume to the cl
✅ The correct answer is option A.
In case of non-condensing steam engines, the pressure of steam in the cylinder during exhaust stroke is __________ the condenser pressure.
equal to
lower than
higher than
✅ The correct answer is option C.
The ratio of the inertia force to the __________ is called Euler’s number.
pressure force
elastic force
surface tension force
viscous force
✅ The correct answer is option A.
In actual machines, mechanical advantage is __________ velocity ratio.
equal to
less than
greater than
✅ The correct answer is option B.
The interchangeability can be achieved by
standardisation
better process planning
bonus plan
better product plannin
✅ The correct answer is option A.
The compression ratio for the compressor is always __________ unity.
equal to
less than
more than
✅ The correct answer is option C.