more
less
✅ The correct answer is option A.
Engineering Mechanics MCQs
2. A spherical body is symmetrical about its perpendicular axis. According to Routh’s rule, the moment of inertia of a body about an axis passing through its centre of gravity is(where, M = Mass of the body, and S = Sum of the squares of the two semi-axes.)
MS/3
MS/4
MS/5
none of these
✅ The correct answer is option C.
3. When a person, on a bicycle, drives round a curve, he has to lean __________ to maintain equilibrium.
inward
outward
✅ The correct answer is option A.
4. Non-coplaner concurrent forces are those forces which
meet at one point, but their lines of action do not lie on the same plane
do not meet at one point and their lines of action do not lie on the same plane
meet at one point and their lines of action also lie on the same plane
do not meet at one poi
✅ The correct answer is option A.
5. The maximum displacement of a body, from its mean position is called amplitude.
Correct
Incorrect
✅ The correct answer is option A.
6. The maximum mechanical advantage of a lifting machine is
1 + m
1 – m
1 / m
m
✅ The correct answer is option C.
7. A lead ball with a certain velocity is made to strike a wall, it falls down, but rubber ball of same mass and with same velocity strikes the same wall, it rebounds. Select the correct reason from the following:
both the balls undergo an equal change in momentum
the change in momentum suffered by rubber ball is more than the lead ball
the change in momentum suffered by rubber ball is less than the lead ball
none of the above
✅ The correct answer is option B.
8. The friction experienced by a body, when at rest, is known as
static friction
dynamic friction
limiting friction
coefficient of frictio
✅ The correct answer is option A.
9. If a body is thrown upwards, then the gravitational acceleration is taken as zero.
Correct
Incorrect
✅ The correct answer is option B.
10. Moment of inertia of a hollow rectangular section as shown in the below figure about X-X axis, is
✅ The correct answer is option A.