equal to
one-half
twice
four times
✅ The correct answer is option C.
Mechanical Engineering MCQs
Moment of inertia of a circular section about an axis perpendicular to the section is
πd3/16
πd3/32
πd4/32
πd4/64
✅ The correct answer is option C.
When the cutting edge of the tool is dull, then during machining
continuous chips are formed
discontinuous chips are formed
continuous chips with built-up edge are formed
no chips are formed
✅ The correct answer is option C.
A-B-C analysis is used in
CPM
PERT
inventory control
all of these
✅ The correct answer is option C.
The rake angle required to machine brass by high speed steel tool is
0°
10°
20°
-10°
✅ The correct answer is option A.
A clutch is usually designed to transmit maximum torque which is
equal to the maximum engine torque
80 per cent of the maximum engine torque
150 per cent of the maximum engine torque
none of these
✅ The correct answer is option C.
A ship with jet propulsion draws water through inlet orifices at right angles to the direction of its motion. The propelling force of the jet is (where a = Area of the jet, Vr = Relative velocity of the jet and ship = V + v, v = Velocity of the ship, and V = Velocity of the jet issuing from the ship)
✅ The correct answer is option B.
Closed packed hexagonal space lattice is found in
zinc, magnesium, cobalt, cadmium, antimony and bismuth
gamma-iron, aluminium, copper, lead, silver and nickel
alpha-iron, tungsten, chromium and molybdenum
none of the above
✅ The correct answer is option A.
In open combustion chamber in diesel engines, the shape and layout of the piston crown, the inlet port and the valve produce the turbulent effect of fuel mixture.
TRUE
FALSE
✅ The correct answer is option A.
The function of a safety valve is
to blow off steam when the pressure of steam inside the boiler exceeds the working pressure
to indicate the water level inside the boiler to an observer
to measure pressure of steam inside the steam boiler
none of the above
✅ The correct answer is option A.