Engineering Mechanics

Engineering Mechanics | Mechanical Engineering

Coplaner non-concurrent forces are those forces which __________ at one point, but their lines of action lie on the same plane.

Question: Coplaner non-concurrent forces are those forces which __________ at one point, but their lines of action lie on the same plane.
[A].
meet
[B].
do not meet

Answer: Option B

Explanation:

No answer description available for this question.

Read More Coplaner non-concurrent forces are those forces which __________ at one point, but their lines of action lie on the same plane.
Engineering Mechanics | Mechanical Engineering

In order to determine the effects of a force, acting on a body, we must know

Question: In order to determine the effects of a force, acting on a body, we must know
[A].
magnitude of the force
[B].
line of action of the force
[C].
nature of the force i,e. whether the force is push or pull
[D].
all of the above

Answer: Option D

Explanation:

No answer description available for this question.

Read More In order to determine the effects of a force, acting on a body, we must know
Engineering Mechanics | Mechanical Engineering

One watt is equal to

Question: One watt is equal to
[A].
0.1 joule/s
[B].
1 joule/s
[C].
10 joules/s
[D].
100 joules/s

Answer: Option B

Explanation:

No answer description available for this question.

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Engineering Mechanics | Mechanical Engineering

Joule is the unit of

Question: Joule is the unit of
[A].
force
[B].
work
[C].
power
[D].
velocity

Answer: Option B

Explanation:

No answer description available for this question.

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Engineering Mechanics | Mechanical Engineering

One joule means that

Question: One joule means that
[A].
work is done by a force of 1 N when it displaces a body through 1m
[B].
work is done by a force of 1 kg when it displaces a body through 1 m
[C].
work is done by a force of 1 dyne when it displaces a body through 1 cm
[D].
work is done by a force of 1 g when it displaces a body through 1 cm

Answer: Option A

Explanation:

No answer description available for this question.

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Engineering Mechanics | Mechanical Engineering

Onejoule is equal to

Question: Onejoule is equal to
[A].
0.1 N-m
[B].
1 N-m
[C].
10 N-m
[D].
100 N-m

Answer: Option B

Explanation:

No answer description available for this question.

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Engineering Mechanics | Mechanical Engineering

A rubber ball is dropped from a height of 2 m. If there is no loss of velocity after rebounding, the ball will rise to a height of

Question: A rubber ball is dropped from a height of 2 m. If there is no loss of velocity after rebounding, the ball will rise to a height of
[A].
1m
[B].
2m
[C].
3m
[D].
4m

Answer: Option B

Explanation:

No answer description available for this question.

Read More A rubber ball is dropped from a height of 2 m. If there is no loss of velocity after rebounding, the ball will rise to a height of
Engineering Mechanics | Mechanical Engineering

A body of mass m moving with a constant velocity v strikes another body of same mass m moving with same velocity but in opposite direction. The common velocity of both the bodies after collision is

Question: A body of mass m moving with a constant velocity v strikes another body of same mass m moving with same velocity but in opposite direction. The common velocity of both the bodies after collision is
[A].
v
[B].
2v
[C].
4v
[D].
8v

Answer: Option B

Explanation:

No answer description available for this question.

Read More A body of mass m moving with a constant velocity v strikes another body of same mass m moving with same velocity but in opposite direction. The common velocity of both the bodies after collision is
Engineering Mechanics | Mechanical Engineering

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:

Question: 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:
[A].
both the balls undergo an equal change in momentum
[B].
the change in momentum suffered by rubber ball is more than the lead ball
[C].
the change in momentum suffered by rubber ball is less than the lead ball
[D].
none of the above

Answer: Option B

Explanation:

No answer description available for this question.

Read More 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:
Engineering Mechanics | Mechanical Engineering

During elastic impact, the relative velocity of the two bodies after impact is __________ the relative velocity of the two bodies before impact.

Question: During elastic impact, the relative velocity of the two bodies after impact is __________ the relative velocity of the two bodies before impact.
[A].
equal to
[B].
equal and opposite to
[C].
less than
[D].
greater than

Answer: Option B

Explanation:

No answer description available for this question.

Read More During elastic impact, the relative velocity of the two bodies after impact is __________ the relative velocity of the two bodies before impact.