(tensile) and 2W (compressive)
2W(tensile) and (compressive)
(tensile) and (compressive)
none of the above
✅ The correct answer is option A.
Engineering Mechanics MCQs
In actual machines, mechanical advantage is __________ velocity ratio.
equal to
less than
greater than
✅ The correct answer is option B.
The power developed by a body acted upon by a torque T newton metre (N – m) and revolving at ω radian/s is given by
T.ω (in watts)
T.ω/60 (in watts)
T.ω/75 (in kilowatts)
T.ω/4500 (in kilowatts
✅ The correct answer is option A.
The moment of inertia of a sphere of mass m and radius r, about an axis tangential to it, is
2mr2/3
2mr2/5
7mr2/3
7mr2/5
✅ The correct answer is option D.
The time taken by a particle for one complete oscillation is known as periodic time.
Agree
Disagree
✅ The correct answer is option A.
The negative acceleration is called retardation.
TRUE
FALSE
✅ The correct answer is option A.
Mass moment of inertia of a thin rod about its one end is __________ the mass moment of inertia of the same rod about its mid-point
same as
twice
thrice
four times
✅ The correct answer is option D.
When a body of mass m attains a velocity v from rest in time t, then the kinetic energy of translation is
mv2
mgv2
0.5 mv2
0.5 mgv2
✅ The correct answer is option C.
The velocity ratio of a differential pulley block with D and d as the diameters of larger and smaller pulley, is
✅ The correct answer is option C.
The centre of gravity of a quadrant of a circle lies along its central radius (r) at a distance of
0.5r
0.6r
0.7r
0.8r
✅ The correct answer is option B.