to stop the watch
to run the watch
to change the time
all of these
✅ The correct answer is option B.
Mechanical Engineering MCQs
The maximum efficiency of a square threaded screw is
✅ The correct answer is option A.
A flow is called hyper-sonic, if the Mach number is
less than unity
unity
between 1 and 6
none of these
✅ The correct answer is option D.
Select the correct statement
Weber’s number is the ratio of inertia force to elastic force.
Weber’s number is the ratio of gravity force to surface tension force.
Weber’s number is the ratio of viscous force to pressure force.
Weber’s number is the
✅ The correct answer is option D.
The area under the temperature-entropy curve (T – s curve) of any thermodynamic process represents
heat absorbed
heat rejected
either (a) or (b)
none of these
✅ The correct answer is option C.
A pitot tube is used to measure the
velocity of flow at the required point in a pipe
pressure difference between two points in a pipe
total pressure of liquid flowing in a pipe
discharge through a pi
✅ The correct answer is option A.
Crater wear leads to
increase in cutting temperature
weakening of tool
friction and cutting forces
all of these
✅ The correct answer is option D.
The width of the bucket for a Pelton wheel is generally __________ the diameter of jet.
double
three times
four times
five times
✅ The correct answer is option D.
In a steam engine, the link constitutes a
piston, piston rod and crosshead
connecting rod with big and small end brasses, caps and bolts
crank pin, crankshaft and flywheel
all of the above
✅ The correct answer is option D.
A mortise gauge is a
striking tool
planing tool
boring tool
marking tool
✅ The correct answer is option D.