# Engineering-Mechanical Engineering Engineering MCQS -Mechanics Section/1 Sample Test,Sample questions

1.30Â°

2.60Â°

3.90Â°

4.120Â°

1. equal to

2. less than

3.greater than

4.none of these

1.equal to

2.less than

3.greater than

4.None of these

1.Ï€d3/16

2.Ï€d3/32

3.Ï€d4/32

4.Ï€d4/64

1.N-m

2.m/s

3. m/s2

## Question: ``` When a rigid body is suspended vertically, and it oscillates with a small amplitude under the action of the force of gravity, the body is known as```

1.simple pendulum

2. compound pendulum

3.torsional pendulum

4.second's pendulum

## Question: `A body of weight W is required to move up on rough inclined plane whose angle of inclination with the horizontal is Î±. The effort applied parallel to the plane is given by(where Î¼ = tanÏ† = Coefficient of friction between the plane and the body.)`

1.P = W tanÎ±

2. P = W tan(Î± + Ï†)

3.P = W (sinÎ± + Î¼cosÎ±)

4.P = W (cosÎ± + Î¼sinÎ±)

1.perfect

2.imperfect

3.deficient

4. none of these

1.stable

2.unstable

3.neutral

4.None of these

## Question: `During elastic impact, the relative velocity of the two bodies after impact is __________ the relative velocity of the two bodies before impact.`

1.equal to

2.equal and opposite to

3.less than

4.. greater than

1. bh3/4

2.bh3/8

3.bh3/12

4.bh3/36

1.0.1 joule/s

2.1 joule/s

3. 10 joules/s

4.100 joules/s

1.equal to

2.less than

3.greater than

4.None of these

## Question: `The algebraic sum of the resolved parts of a number of forces in a given direction is equal to the resolved part of their resultant in the same direction. This is known as`

1.principle of independence of forces

2.principle of resolution of forces

3.principle of transmissibility of forces

4. none of these

1. 0Â° and 180Â°

2.180Â° and 0Â°

3.90Â° and 180Â°

4. 90Â° and 0Â°

## Question: `The bodies which rebound after impact are called`

1.inelastic bodies

2.elastic bodies

3.neither elastic nor inelastic bodies

4. none of these

## Question: `The friction experienced by a body, when in motion, is known as`

1. rolling friction

2.dynamic friction

3. limiting friction

4.static friction

## Question: `The maximum frictional force, which comes into play, when a body just begins to slide over the surface of the other body, is known as`

1.static friction

2.dynamic friction

3.limiting friction

4.coefficient of friction

## Question: `The mechanical advantage of a lifting machine is the ratio of`

1.distance moved by effort to the distance moved by load

2. load lifted to the effort applied

3.output to the input

4.all of the above

1.30Â°

2.45Â°

3.60Â°

4.90Â°

1. sin Î¸

2.cos Î¸

3.tan Î¸

4.cosec Î¸

1.v

2.v/2

3.v/4

4.v/8

1.15 N and 5 N

2. 20 N and 5 N

3. 15 N and 15 N

4.none of these

## Question: `Which of the following is an equation of linear motion?(where, u and v = Initial and final velocity of the body, a = Acceleration of the body, and s = Displacement of the body in time t seconds.)`

1.v = u + a.t

2. s = u.t + 1/2 a.t2

3.v2 = u2+2a.s

4.all of these

## Question: `Work done is said to be zero, when`

1. some force acts on a body, but displacement is zero

2.no force acts on a body but some displacement takes place

3.either (a) or (b)

4.none of the above

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