all the forces are equally inclined
sum of all the forces is zero
sumof resolved parts in the vertical direction is zero (i.e. ∑V = 0)
none of these
✅ The correct answer is option C.
Engineering Mechanics MCQs
The maximum acceleration of a particle moving with simple harmonic motion is
ω
ωr
ω2r
ω/r
✅ The correct answer is option C.
The efficiency of a lifting machine is the ratio of
output to the input
work done by the machine to the work done on the machine
mechanical advantage to the velocity ratio
all of the above
✅ The correct answer is option D.
Coplaner non-concurrent forces are those forces which __________ at one point, but their lines of action lie on the same plane.
meet
do not meet
✅ The correct answer is option B.
The rate of doing work is known as
potential energy
kinetic energy
power
none of these
✅ The correct answer is option C.
If three coplaner forces acting on a point are in equilibrium, then each force is proportional to the sine, of the angle between the other two.
Correct
Incorrect
✅ The correct answer is option A.
The moment of inertia of a solid sphere of mass m and radius r is
2mr2/3
2mr2/5
mr2
mr2/2
✅ The correct answer is option B.
The forces, whose lines of action are parallel to each other and act in the same directions, are known as
coplaner concurrent forces
coplaner non-concurrent forces
like parallel forces
unlike parallel forces
✅ The correct answer is option C.
The unit of power in S.I. units is
horsepower
joule
watt
kg-m
✅ The correct answer is option C.