m/min
rad/s
revolutions/min
both (B) and (C)
✅ The correct answer is option D.
Mechanical Engineering MCQs
When a helical compression spring is cut into halves, the stiffness of the resulting spring will be
same
double
one-half
one-fourth
✅ The correct answer is option B.
The work ratio of simple gas turbine cycle depends upon
maximum cycle temperature
minimum cycle temperature
pressure ratio
all of these
✅ The correct answer is option D.
The evaporator used in house-hold refrigerators is
frosting evaporator
non-frosting evaporator
defrosting evaporator
none of these
✅ The correct answer is option A.
When a steel containing __________ 0.8% carbon is cooled slowly below the lower critical point, it consists of ferrite and pearlite.
equal to
less than
more than
✅ The correct answer is option B.
In a thick cylindrical shell subjected to an internal pressure (p), the radial stress across the thickness of the cylinder is
maximum at the outer surface and minimum at the inner surface
maximum at the inner surface and minimum at the outer surface
maximum at the outer surface and zero at the inner surface
maximum at the inner s
✅ The correct answer is option D.
When a cylindrical vessel containing liquid is revolved, the surface of the liquid takes the shape of
a triangle
a paraboloid
an ellipse
none of these
✅ The correct answer is option B.
The ratio of the discharge pressure to the inlet pressure of air is called
compression ratio
expansion ratio
compressor efficiency
volumetric efficiency
✅ The correct answer is option A.
In twist fluted drills, chips do not move out automatically.
Correct
Incorrect
✅ The correct answer is option B.
The ratio of the largest load in a test to the original cross-sectional area of the test piece is called
elastic limit
yield stress
ultimate stress
breaking stress
✅ The correct answer is option C.