70°
100°
118°
130°
✅ The correct answer is option C.
Mechanical Engineering MCQs
The propulsive power of the rocket is (where v1 = Jet velocity, and v2 = Air-craft velocity)
✅ The correct answer is option A.
In down milling, the thickness of chip is
minimum at the beginning of the cut and maximum at the end of the cut
maximum at the beginning of the cut and minimum at the end of the cut
uniform throughout the cut
none of these
✅ The correct answer is option B.
With an increase in size of tube, the rise or depression of liquid in the tube due to surface tension will
decrease
increase
remain unchanged
depend upon the charac
✅ The correct answer is option A.
A flow in which __________ force is dominating over the viscosity is called turbulent flow.
elastic
surface tension
viscous
inertia
✅ The correct answer is option D.
The vertical and uniformly spaced lines on a psychrometric chart indicates
dry bulb temperature
wet bulb temperature
dew point temperature
specific humidity
✅ The correct answer is option A.
In a reciprocating pump, air vessels are used to
smoothen the flow
reduce suction head
increase delivery head
reduce acceleration he
✅ The correct answer is option D.
The shear force of a simply supported beam carrying a central point load changes sign at its midpoint.
Correct
Incorrect
✅ The correct answer is option A.
Modular ratio of the two materials is the ratio of
linear stress to linear strain
shear stress to shear strain
their modulus of elasticities
their modulus of rigid
✅ The correct answer is option C.
A better machinable metal is one which gives
lower chip-tool contact area and larger shear angle
higher chip-tool contact area and smaller shear angle
lower chip-tool contact area and smaller shear angle
higher chip-tool conta
✅ The correct answer is option A.