Engineering Mechanics

Question: In collision of elastic bodies, the coefficient of restitution is the ratio of the relative velocity after impact to the relative velocity before impact.
[A].

True

[B].

False

Answer: Option A

Explanation:

No answer description available for this question.

Question: The bodies which rebound after impact are called
[A].

inelastic bodies

[B].

elastic bodies

[C].

neither elastic nor inelastic bodies

[D].

none of these

Answer: Option B

Explanation:

No answer description available for this question.

Question: The amount by which the outer edge of the rail is raised, is known as super-elevation.
[A].

Agree

[B].

Disagree

Answer: Option A

Explanation:

No answer description available for this question.

Question: The angle of inclination with the vertical is __________ if the cyclist is running at a faster speed than that when he is running at a slower speed.
[A].

more

[B].

less

Answer: Option A

Explanation:

No answer description available for this question.

Question: The angle of inclination of a vehicle when moving along a circular path __________ upon its mass.
[A].

depends

[B].

does not depend

Answer: Option B

Explanation:

No answer description available for this question.

Question: If a pendulum is taken 1 km below the earth surface in a mine, it will __________ in time.
[A].

gain

[B].

loose

Answer: Option A

Explanation:

No answer description available for this question.

Question: A pendulum which executes one beat per second is known as
[A].

simple pendulum

[B].

compound pendulum

[C].

torsional pendulum

[D].

second’s pendulum

Answer: Option D

Explanation:

No answer description available for this question.

Question: If the resultant of a number of forces acting on a body is zero, then the body will not be in equilibrium.
[A].

Yes

[B].

No

Answer: Option B

Explanation:

No answer description available for this question.

Question: In order to double the period of simple pendulum, the length of the string should be
[A].

halved

[B].

doubled

[C].

quadrupled

Answer: Option C

Explanation:

No answer description available for this question.

Question: One end of a helical spring is fixed while the other end carries the load W which moves with simple harmonic motion. The frequency of motion is given by(where δ = Deflection of the spring.)
[A].

[B].

[C].

[D].

Answer: Option B

Explanation:

No answer description available for this question.