281. A resultant force is a single force which produces the same effect as produced by all the given forces acting on a body.
TRUE
FALSE
✅ The correct answer is option A.
Engineering Mechanics MCQs
282. Moment of inertia of a hollow circular section, as shown in the below figure about X-axis, is
✅ The correct answer is option D.
283. The distance, between the point of projection and the point where the projectile strikes the ground, is known as range.
Correct
Incorrect
✅ The correct answer is option A.
284. In the shown figure, if the angle of inclination of the plane is increased, then acceleration of the system will
increase
decrease
remain the same
✅ The correct answer is option B.
285. One watt is equal to
0.1 joule/s
1 joule/s
10 joules/s
100 joules/s
✅ The correct answer is option B.
286. A smooth cylinder lying on its convex surface remains in __________ equilibrium.
stable
unstable
neutral
✅ The correct answer is option B.
287. The unit of angular acceleration is
[A]. N-m
[B]. m/s
[C]. m/s2
[D]. rad/s2
✅ The correct answer is option D.
288. If two bodies having masses m1 and m2 (m1>m2) have equal kinetic energies, the momentum of body having mass m1 is __________ the momentum of body having mass m2.
[A]. equal to
[B]. less than
[C]. greater than
null
✅ The correct answer is option C.
289. The centre of gravity of an equilateral triangle with each side a, is __________ from any of the three sides.
[A]. 3a/2
[B]. 23a
[C]. a/23
[D]. 32a
✅ The correct answer is option C.
290. two like parallel forces are acting at a distance of 24 mm apart and their resultant is 20 N. It the line of action of the resultant is 6 mm from any given force, the two forces are
[A]. 15 N and 5 N
[B]. 20 N and 5 N
[C]. 15 N and 15 N
[D]. none of these
✅ The correct answer is option A.