# Civil Engineering/Applied Mechanics MCQ Sample Test,Sample questions

## Question: A jet engine works on the principle of

1.Conservation of energy

2.Conservation of linear momentum

3.Conservation of mass

4. Conservation of mass and momentum

1. kg. m / sec

2.kg. m2 / sec

3.kg. m / sec 2

4.kg2. m / sec

## Question: A particle in simple harmonic motion while passing through mean position will have

1. Maximum kinetic energy and maximum potential energy

2.Maximum kinetic energy and minimum potential energy

3. Minimum kinetic energy and maximum potential energy

4.Minimum kinetic energy and minimum potential energy

1. Oscillation

2.Amplitude

3.Periodic time

4.Frequency

1.Virtual work

2.Imaginary work

3.Zero work

4. Negative work

## Question: If the gravitational acceleration at any place is doubled, the weight of a body will

1.Be reduced to half

2.Be doubled

3.Not be affected

4. None of these

1. b3/4

2. b4/12

3.b44/3

4.b4/8

1.Period time

2.Oscillation

3.Beat

4.Amplitude

1.h / 2

2.h / 3

3.h / 4

4.h / 5

1.Mr4/2

2.Mr2

3.2/3 Mr2

4.2/5 Mr2

## Question: The motion of a particle moving with simple harmonic motion, from an extremity to the other, constitutes

1.Half an oscillation

2.One an oscillation

3.Two oscillations

4.None of the above

1.Circular

2.Parabolic

3.Elliptical

4.Catenary

1.kg/m

2.kg/m2

3. kg-m2

4. m3

## Question: The velocity of a moving body is

1.A vector quantity

2.A scalar quantity

3. A constant quantity

4.None of these

1. Straight line

2.Involute

3.Centroid

4.Spiral

## Question: A number of forces acting simultaneously on a particle of a body

1.may be replace by a couple

2.may be replaced by a single force through C.G. of the body

3. may be replaced by a single fore

4.may not be replaced by a single force

## Question: A particle moving with a simple harmonic motion attains its maximum velocity when it passes

1. through point at half amplitude

2.the extreme point of the oscillation

3.through the mean position

4.none of these

1.0o

2.30o

3.45o

4.60o

## Question: A rigid body suspended vertically at a point and oscillating with a small amplitude under the action of the force of gravity is called

1.second's pendulum

2. simple pendulum

3.compounder pendulum

4.None of these

## Question: A smooth cylinder lying on its convex surface remains

1. In stable equilibrium

2.In unstable equilibrium

3. In neutral equilibrium

4.Out of equilibrium

## Question: A stone is whirled in a vertical circle, the tension in the string is maximum

1.when the string is horizontal

2.when the stone is at the lowest position

3.when the stone is at the highest position

4.at all the positions

## Question: According to Kennedy's theorem, if three bodies have plane motion, their instantaneous centres lie on

1. a triangle

2. two straight lines

3.a straight line

4.a point

## Question: Centre of gravity of a thin hollow cone lies on the axis of symmetry at a height of

1.one half of the total height above base

2.one fourth of the total height above base

3.one third of the total height above base

4.none of these

## Question: Centrifugal force acting on a body, moving along a circular path, will be

1. equal and opposite to centripetal force

2. equal and similar to centripetal force

3. inversely proportional to centripetal force

4.proportional to centripetal force

## Question: Engineer's units of force, is

1.Newton and dyne in absolute units

2.Dyne in absolute units

3.Newton in absolute units

4.All the above

1. 30o

2.45o

3.60o

4. none of these

## Question: If rain falls in the opposite direction of the movement of a pedestrian, he has to hold his umbrella

1.more inclined when moving

2.less inclined when moving

3.less inclined when standing

4.more inclined when standing

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

1.Rate of change of velocity

2.Displacement

3.Velocity

4.Direction

## Question: Kinetic friction is

1.Maximum value of frictional force when a body is about to move

2. Friction between two well lubricated bodies

3.Friction force acting when the body is in motion

4.Friction force which keeps a body in motion

## Question: Newton's Law of Motion is

1. to every action, there is always an equal and opposite

2.the rate of change of momentum is directly proportional to the impressed force, and takes place in the same direction, in which the force acts

3.everybody continues in its state of rest or of uniform motion, in a straight line, unless it is acted upon by some external force

4.all the above

## Question: Newton's law of motion of rotation which states, Everybody continues in its state of rest or uniform motion of rotation about an axis unless it is acted upon by some external torque is

1.first law of motion

2.second law of motion

3. third law of motion

4. fourth law of motion

1.103 dynes

2.104 dynes

3.105 dynes

4.106 dynes

## Question: Periodic time of body moving with simple harmonic motion is

1. inversely proportional to its angular velocity

2. inversely proportional to the square of its angular velocity

3.directly proportional to the square of its angular velocity

4.directly proportional to its angular velocity

## Question: Polar moment of inertia is

1.Same as moment of inertia

2. Applicable to masses whereas moment of inertia is applicable to area only

3.The moment of inertia for an area relative to a linear or axis perpendicular to the plane of the area

4.The moment of inertia for an area relative to a line or axis parallel to the centroidal axis

## Question: The angle which an inclined surface makes with the horizontal when a body placed on its is on the point of moving down, is called

1.angle of inclination

2.angle of friction

3.angle of repose

4.None of these

## Question: The angle which an inclined surface makes with the horizontal when a body placed on the point of moving down, is called

1.Angle of repose

2. Angle of friction

3.Angle of inclination

4.None of the above

## Question: The centre of gravity of a homogeneous body is the point at which the whole

1.Volume of the body is assumed to be concentrated

2.Area of the surface of the body is assumed to be concentrated

3. Weight of the body is assumed to be concentrated

4.All of the above

## Question: The centre of gravity of a plane laminate will not be at its geometrical centre if it is a

1.Circle

2.Equilateral triangle

3.Rectangle

4.Right angled triangle

1.0.2 R

2.0.3 R

3.0.4 R

4.0.6 R

1. to be maximum

2.to be minimum

3.to be zero

4.None of these

1. Joule

2.Dyne

3.Newton

4.Energy

## Question: The frequency of oscillation on moon as compare to that on earth, will be

1.2.44 times more

2.2.44 times less

3. 3 times less

4.3 times more

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

1. limiting friction

2. rolling friction

3. sliding friction

4.none of these

## Question: The motion of a particle moving with S.H.M. from an extremely to the other, constitutes

1.one full oscillation

2.two oscillations

3.half an oscillation

4.None of these

## Question: The necessary condition of equilibrium of a body is

1.algebraic sum of the moments of the forces about a point must be zero

2.algebraic sum of vertical components of all the forces must be zero

3.algebraic sum of horizontal components of all the forces must be zero

4. all a, b and c

1.parabolic

2.elliptical

3.straight line

4.circular

## Question: The periodic time of a body moving in simple harmonic motion is

1.Directly proportional to its angular velocity

2. Directly proportional to the weight of the body

3.Directly proportional to the momentum of swinging body

4.Inversely proportional to the angular velocity

1.impulse

2.power

3.moment

4.momentum

1.catenary

2.circular

3.elliptical

4.parabolic

## Question: The total time of collision and restitution of two bodies is called

1.period of collision

2. period of impact

3. time of collision

4.all the above

1. kg

2.dyne

3.newton

4.all the above

1. kg/m

2.kg/m2

3.m4

4.m3

1. kg-m

2. kg / m2

3.kg /sec2

4.kg /sec

1.kg/m

2.kg/m2

3.kg-m2

4.m4

## Question: The vehicle moving on a level circular path will exert pressure such that reaction on

1.inner wheels will be more

2.outer wheels will be more

3.inner as well as outer wheels will be equal

4.none of these

## Question: The velocity of a moving body is

1. a constant quantity

2.a scalar quantity

3.a vector quantity

4.none of these

1.2u sin Î±/ g

2.2u cos Î±/ g

3.2u tan Î±/ g

4. 2u cot Î±/ g

1.10 kg

2. 20 kg

3. 25 kg

4.35 kg

## Question: when a body in equilibrium undergoes an infinitely small displacement work imagined to be done, is known as

1. Imaginary work

2.Negative work

3.Virtual work

4.None of these

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

1.The time period is inversely proportional to âˆšg where g is the acceleration due to gravity

2.The time period is proportional to âˆšl where l is length

3.The time period does not depend on its magnitude

4.The time period is proportional to its length l

## More MCQS

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