Applied Mechanics MCQs

Question 1

A particle moving with a simple harmonic motion, attains its maximum velocity when it passes

Accepted Answer

through the mean position

Answer

the extreme point of the oscillation

Answer

( c) through a point at half amplitude

Answer

none of these.

Question 2

Pick up the incorrect statement from the following. In a simple harmonic motion

Accepted Answer

acceleration is minimum at the end of the stroke

Answer

velocity is maximum at its mean position

Answer

velocity is minimum at the end of the storke

Answer

acceleration is zero at the mean position.

Question 3

The acceleration of a particle moving along the circumference of a circle with a uniform speed, is directed

Accepted Answer

tangentially at that point

Answer

radially

Answer

away from the centre

Answer

towards the centre.

Question 4

In simple harmonic motion, acceleration of a particle is proportional to

Accepted Answer

(c) velocity

Answer

rate of change of velocity (b) displacement

Answer

direction

Answer

none of these.

Question 5

The linear velocity (u) of a moving particle along the circumference of a circle of radius r, with a uniform angular velocity w radians/sec2 will be given by

Accepted Answer

v = rw

Answer

v = rw2

Answer

v = rw2

Answer

v = wir

Question 6

A particle executes a simple harmonic motion. While passing through the mean position, the particle possesses

Accepted Answer

maximum kinetic energy & minimum potential energy

Answer

maximum kinetic energy & maximum potential energy

Answer

minimum kinetic energy & maximum potential energy

Answer

minimum kinetic energy & minimum potential energy

Question 7

For a simple pendulum, the period of one oscillation is

Accepted Answer

27p11/g

Answer

2r01 / 2g

Answer

27t-q2g//

Answer

271 vg /21

Question 8

For a simple pendulum, time period for a beat, is

Accepted Answer

mil/ g

Answer

TcA121/ g

Answer

rcvg /21

Answer

atN11 / 2g

Question 9

Which one of the following laws is not applicable to a simple pendulum ?

Accepted Answer

The time period is proportional to its length 1

Answer

The time period does not depend on its magnitude

Answer

The time period is proportional to 4T where 1 is length

Answer

The time period is inversely proportional to Arg- where g is the acceleration due to gravity.