same
double
half
one-fourth
✅ The correct answer is option B.
Mechanical Engineering MCQs
A compound steam engine in which piston rods of high pressure and low pressure cylinders are attached to two different cranks set at 90° to each other, is called
receiver type compound engine
Tandem type compound engine
Woolf type compound engine
both (a) and (b)
✅ The correct answer is option A.
The carbide tools operating at very low cutting speeds (below 30 m/min)
reduces tool life
increases tool life
have no effect on tool life
spoils the work piece
✅ The correct answer is option A.
The vacuum pressure is always the negative gauge pressure.
Yes
No
✅ The correct answer is option A.
In designing a connecting rod, it is considered like __________ for buckling about Y-axis.
both ends hinged
both ends fixed
one end fixed and the other end hinged
one end fixed and the
✅ The correct answer is option B.
The factional resistance of a pipe varies approximately with __________ of the liquid.
pressure
velocity
square of velocity
cube of velocity
✅ The correct answer is option C.
A screw jack used for lifting the loads is
a reversible machine
a non-reversible machine
an ideal machine
none of these
✅ The correct answer is option B.
Which type of the pump is different from others in the same group?
Screw pump
Gear pump
Cam and piston pump
Plunger pump
✅ The correct answer is option D.
In a La-mont boiler, there is a __________ circulation of water and steam.
forced
natural
✅ The correct answer is option A.