✅ The correct answer is option C.
Mechanical Engineering MCQs
The force induced in the string AB due to the load W, as shown in the below figure is
W sin θ
W cos θ
W sec θ
W cosec θ
✅ The correct answer is option D.
The rotor of a ship rotates in clockwise direction when viewed from stern and the ship takes a left turn. The effect of gyroscopic couple acting on it will be
to raise the bow and stern
to lower the bow and stern
to raise the bow and lower the stern
to raise the stern and
✅ The correct answer is option C.
A spring controlled governor is said to be isochronous when the controlling force
increases as the radius of rotation decreases
increases as the radius of rotation increases
decreases as the radius of rotation increases
remains constant for a
✅ The correct answer is option D.
The actual vacuum in a condenser is equal to
barometric pressure + actual pressure
barometric pressure – actual pressure
gauge pressure + atmospheric pressure
gauge pressure – atmos
✅ The correct answer is option B.
In drilling operation, the metal is removed by
shearing
extrusion
shearing and extrusion
shearing and compressi
✅ The correct answer is option C.
When the gas is heated at constant pressure, the heat supplied
increases the internal energy of the gas
increases the temperature of the gas
does some external work during expansion
Both (B) and (C)
✅ The correct answer is option D.
The number of water level indicators in a boiler are generally __________ in number.
one
two
three
four
✅ The correct answer is option B.
The combustion process in a Diesel engine is a
constant volume process
constant pressure process
constant temperature process
adiabatic process
✅ The correct answer is option B.
If the damping factor for a vibrating system is unity, then the system will be
over damped
under damped
critically damped
without vibrations
✅ The correct answer is option C.