Which of the following are vector quantities?

Question

Which of the following are vector quantities?

A. Angular displacement

B. Angular velocity

C. Angular acceleration

D. All of these

Share this question with your friends

Show all Engineering Mechanics MCQ

Comment

A pair of smith's tongs is an example of the lever of

A. Zeroth order

B. First order

C. Second order

D. Third order

Discuss this answer

The forces, whose lines of action are parallel to each other and act in the same directions, are known as

A. Coplanar concurrent forces

B. Coplanar non-concurrent forces

C. Like parallel forces

D. Unlike parallel forces

Discuss this answer

The force induced in the string BC due to the load W as shown in the below figure is

A. W sinθ

B. W cosθ

C. W tanθ

D. W cotθ

Discuss this answer

In the shown figure, the tension (T) in the string will be

A. m₁. m₂. g/(m₁ + m₂)

B. 2m₁. m₂. g/(m₁ + m₂)

C. (m₁ + m₂)/ m₁. m₂. g

D. (m₁ + m₂)/2m₁. m₂. g

Discuss this answer

The time of flight of a projectile on downward inclined plane depends upon

A. Angle of projection

B. Angle of inclination of the plane

C. Both (A) and (B)

D. None of these

Discuss this answer

Work done is said to be zero, when

A. Some force acts on a body, but displacement is zero

B. No force acts on a body but some displacement takes place

C. Either (A) or (B)

D. None of the above

Discuss this answer

Moment of inertia of a triangular section of base (b) and height (h) about an axis passing through its vertex and parallel to the base, is __________ than that passing through its C.G. and parallel to the base.

A. Nine times

B. Six times

C. Four times

D. Two times

Discuss this answer

Which of the following is not the unit of power?

A. kW (kilowatt)

B. hp (horse power)

C. kcal/sec

D. kcal/kg sec

Discuss this answer

The time of flight (t) of a projectile on a horizontal plane is given by

A. t = 2u. sinα/g

B. t = 2u. cosα/g

C. t = 2u. tanα/g

D. t = 2u/g.sinα

Discuss this answer

If two bodies having masses m₁ and m₂ (m₁>m₂) have equal kinetic energies, the momentum of body having mass m₁ is _________ the momentum of body having mass m₂.

A. Equal to

B. Less than

C. Greater than

D. None of these

Discuss this answer

The angular velocity (in rad/s) of a body rotating at N revolutions per minute is

A. πN/60

B. πN/180

C. 2πN/60

D. 2πN/180

Discuss this answer

Forces are called concurrent when their lines of action meet in

A. One point

B. Two points

C. Plane

D. Perpendicular planes

Discuss this answer

The motion of a particle round a fixed axis is

A. Translatory

B. Rotary

C. Circular

D. Translatory as well as rotary

Discuss this answer

The total momentum of a system of masses (i. e. moving bodies) in any one direction remains constant, unless acted upon by an external force in that direction. This statement is called

A. Newton's first law of motion

B. Newton's second law of motion

C. Principle of conservation of energy

D. Principle of conservation of momentum

Discuss this answer

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

A. Static friction

B. Dynamic friction

C. Limiting friction

D. Coefficient of friction

Discuss this answer

A particle moves along a straight line such that distance (x) traversed in t seconds is given by x = t² (t - 4), the acceleration of the particle will be given by the equation

A. 6t² - 8t

B. 3t² + 2t

C. 6f - 8

D. 6f - 4

Discuss this answer

The ratio of limiting friction and normal reaction is known as

A. Coefficient of friction

B. Angle of friction

C. Angle of repose

D. Sliding friction

Discuss this answer

A force while acting on a body may

A. Change its motion

B. Balance the forces, already acting on it

C. Give rise to the internal stresses in it

D. All of these

Discuss this answer

The power developed by a body acted upon by a torque T Newton metre (N - m) and revolving at ω radian/s is given by

A. T.ω (in watts)

B. T.ω/60 (in watts)

C. T.ω/75 (in kilowatts)

D. T.ω/4500 (in kilowatts)

Discuss this answer

The velocity ratio of a single purchase crab winch can be increased by

A. Increasing the length of the handle

B. Increasing the radius of the load drum

C. Increasing the number of teeth of the pinion

D. All of the above

Discuss this answer

A trolley wire weighs 1.2 kg per meter length. The ends of the wire are attached to two poles 20 meters apart. If the horizontal tension is 1500 kg find the dip in the middle of the span

A. 2.5 cm

B. 3.0 cm

C. 4.0 cm

D. 5.0 cm

Discuss this answer

Which of the following statement is incorrect?

A. A force acting in the opposite direction to the motion of the body is called force of friction

B. The ratio of the limiting friction to the normal reaction is called coefficient of friction

C. A machine whose efficiency is 100% is known as an ideal machine

D. The velocity ratio of a machine is the ratio of load lifted to the effort applied

Discuss this answer

The efficiency of a lifting machine is the ratio of

A. Output to the input

B. Work done by the machine to the work done on the machine

C. Mechanical advantage to the velocity ratio

D. All of the above

Discuss this answer

Coplanar 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

C. Either A or B

D. None of these

Discuss this answer

A body moves, from rest with a constant acceleration of 5 m per sec. The distance covered in 5 sec is most nearly

A. 38 m

B. 62.5 m

C. 96 m

D. 124 m

Discuss this answer

Which of the following statement is correct in connection with projectiles?

A. A path, traced by a projectile in the space, is known as trajectory.

B. The velocity, with which a projectile is projected, is known as the velocity of projection.

C. The angle, with the horizontal, at which a projectile is projected, is known as angle of projection.

D. All of the above

Discuss this answer

Pick up wrong statement about friction force for dry surfaces. Friction force is

A. Proportional to normal load between the surfaces

B. Dependent on the materials of contact surface

C. Proportional to velocity of sliding

D. Independent of the area of contact surfaces

Discuss this answer

The friction experienced by a body, when in motion, is known as

A. Rolling friction

B. Dynamic friction

C. Limiting friction

D. Static friction

Discuss this answer

The velocity ratio in case of an inclined plane inclined at angle θ to the horizontal and weight being pulled up the inclined plane by vertical effort is

A. sinθ

B. cosθ

C. tanθ

D. cosecθ

Discuss this answer

The forces, which meet at one point, but their lines of action do not lie in a plane, are called

A. Coplanar non-concurrent forces

B. Non-coplanar concurrent forces

C. Non-coplanar non-concurrent forces

D. Intersecting forces

Discuss this answer

Accepted Answer

D. All of these

Which of the following are vector quantities?

Correct Answer :

Show all Engineering Mechanics MCQ

Related Questions

A pair of smith's tongs is an example of the lever of

The forces, whose lines of action are parallel to each other and act in the same directions, are known as

The force induced in the string BC due to the load W as shown in the below figure is

In the shown figure, the tension (T) in the string will be

The time of flight of a projectile on downward inclined plane depends upon

Work done is said to be zero, when

Moment of inertia of a triangular section of base (b) and height (h) about an axis passing through its vertex and parallel to the base, is __________ than that passing through its C.G. and parallel to the base.

Which of the following is not the unit of power?

The time of flight (t) of a projectile on a horizontal plane is given by

If two bodies having masses m₁ and m₂ (m₁>m₂) have equal kinetic energies, the momentum of body having mass m₁ is _________ the momentum of body having mass m₂.

The angular velocity (in rad/s) of a body rotating at N revolutions per minute is

Forces are called concurrent when their lines of action meet in

The motion of a particle round a fixed axis is

The total momentum of a system of masses (i. e. moving bodies) in any one direction remains constant, unless acted upon by an external force in that direction. This statement is called

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

A particle moves along a straight line such that distance (x) traversed in t seconds is given by x = t² (t - 4), the acceleration of the particle will be given by the equation

The ratio of limiting friction and normal reaction is known as

A force while acting on a body may

The power developed by a body acted upon by a torque T Newton metre (N - m) and revolving at ω radian/s is given by

The velocity ratio of a single purchase crab winch can be increased by

A trolley wire weighs 1.2 kg per meter length. The ends of the wire are attached to two poles 20 meters apart. If the horizontal tension is 1500 kg find the dip in the middle of the span

Which of the following statement is incorrect?

The efficiency of a lifting machine is the ratio of

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

A body moves, from rest with a constant acceleration of 5 m per sec. The distance covered in 5 sec is most nearly

Which of the following statement is correct in connection with projectiles?

Pick up wrong statement about friction force for dry surfaces. Friction force is

The friction experienced by a body, when in motion, is known as

The velocity ratio in case of an inclined plane inclined at angle θ to the horizontal and weight being pulled up the inclined plane by vertical effort is

The forces, which meet at one point, but their lines of action do not lie in a plane, are called

Also checkout

Which of the following are vector quantities?

Correct Answer :

Show all Engineering Mechanics MCQ

Related Questions

A pair of smith's tongs is an example of the lever of

The forces, whose lines of action are parallel to each other and act in the same directions, are known as

The force induced in the string BC due to the load W as shown in the below figure is

In the shown figure, the tension (T) in the string will be

The time of flight of a projectile on downward inclined plane depends upon

Work done is said to be zero, when

Moment of inertia of a triangular section of base (b) and height (h) about an axis passing through its vertex and parallel to the base, is __________ than that passing through its C.G. and parallel to the base.

Which of the following is not the unit of power?

The time of flight (t) of a projectile on a horizontal plane is given by

If two bodies having masses m1 and m2 (m1>m2) have equal kinetic energies, the momentum of body having mass m1 is _________ the momentum of body having mass m2.

The angular velocity (in rad/s) of a body rotating at N revolutions per minute is

Forces are called concurrent when their lines of action meet in

The motion of a particle round a fixed axis is

The total momentum of a system of masses (i. e. moving bodies) in any one direction remains constant, unless acted upon by an external force in that direction. This statement is called

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

A particle moves along a straight line such that distance (x) traversed in t seconds is given by x = t² (t - 4), the acceleration of the particle will be given by the equation

The ratio of limiting friction and normal reaction is known as

A force while acting on a body may

The power developed by a body acted upon by a torque T Newton metre (N - m) and revolving at ω radian/s is given by

The velocity ratio of a single purchase crab winch can be increased by

A trolley wire weighs 1.2 kg per meter length. The ends of the wire are attached to two poles 20 meters apart. If the horizontal tension is 1500 kg find the dip in the middle of the span

Which of the following statement is incorrect?

The efficiency of a lifting machine is the ratio of

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

A body moves, from rest with a constant acceleration of 5 m per sec. The distance covered in 5 sec is most nearly

Which of the following statement is correct in connection with projectiles?

Pick up wrong statement about friction force for dry surfaces. Friction force is

The friction experienced by a body, when in motion, is known as

The velocity ratio in case of an inclined plane inclined at angle θ to the horizontal and weight being pulled up the inclined plane by vertical effort is

The forces, which meet at one point, but their lines of action do not lie in a plane, are called

Also checkout

If two bodies having masses m₁ and m₂ (m₁>m₂) have equal kinetic energies, the momentum of body having mass m₁ is _________ the momentum of body having mass m₂.