The motion of a bicycle wheel is a.Curvilinear b.Translatory c.Linear d.Rotary as well as translatory e.Rotary

The motion of a bicycle wheel is a.Curvilinear b.Translatory c.Linear d.Rotary as well as translatory e.Rotary
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d. Rotary as well as translatory
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When a body moves round a fixed axis it will have a.A motion of rotation and translation b.A circular motion c.A rotary motion d.A translatory motion e.A swinging motion

Description : When a body moves round a fixed axis it will have a.A motion of rotation and translation b.A circular motion c.A rotary motion d.A translatory motion e.A swinging motion

Last Answer : b. A circular motion

During planetary motion which of the following remains constant? a.Augular speed b.Linear velocity c.Angular acceleration d.Total angular momentum e.All of the above

Description : During planetary motion which of the following remains constant? a.Augular speed b.Linear velocity c.Angular acceleration d.Total angular momentum e.All of the above

Last Answer : b. Linear velocity

In planetary motion a.The total angular momentum remains constant b.The total linear momentum remains constant c.The total linear momentum is zero d.The total angular momentum is zero e.None of the above

Description : In planetary motion a.The total angular momentum remains constant b.The total linear momentum remains constant c.The total linear momentum is zero d.The total angular momentum is zero e.None of the above

Last Answer : a. The total angular momentum remains constant

Kinetic friction is a.Maximum value of frictional force when a body is about to move b.Friction between two well lubricated bodies c.Friction force acting when the body is in motion d.Driction force which keeps a body in motion e.None of the above

Description : Kinetic friction is a.Maximum value of frictional force when a body is about to move b.Friction between two well lubricated bodies c.Friction force acting when the body is in motion d.Driction force which keeps a body in motion e.None of the above

Last Answer : c. Friction force acting when the body is in motion

A grinding wheel rotates at 3000 rpm. When power supply is cut off the wheel stops in 5 sec. The number of revolutions made by the wheel before coming to rest would be a.500 b.107 dynes c.250 d.3000 e.1000

Description : A grinding wheel rotates at 3000 rpm. When power supply is cut off the wheel stops in 5 sec. The number of revolutions made by the wheel before coming to rest would be a.500 b.107 dynes c.250 d.3000 e.1000

Last Answer : c. 250

Which of the following is not a lever of the first order? a.Pair of Smith's tongs b.Wheel barrow c.Ordinary balance d.Pair of scissors e.107 dynes

Description : Which of the following is not a lever of the first order? a.Pair of Smith's tongs b.Wheel barrow c.Ordinary balance d.Pair of scissors e.107 dynes

Last Answer : b. Wheel barrow

In a single threaded worm and worm wheel the number of teeth on the worm wheel is 60. The diameter of the effort wheel is 12 cm and that of load drum is 8 cm. The velocity ratio will be a.90 b.120 c.60 d.45 e.107 dynes

Description : In a single threaded worm and worm wheel the number of teeth on the worm wheel is 60. The diameter of the effort wheel is 12 cm and that of load drum is 8 cm. The velocity ratio will be a.90 b.120 c.60 d.45 e.107 dynes

Last Answer : a. 90

A grinding wheel rotates at 3000 rpm. When power supply is cut-off the wheel stops in 10 seconds. The number of revolutions made by the wheel before coming to rest would be a.1500 b.3000 c.1000 d.250 e.500

Description : A grinding wheel rotates at 3000 rpm. When power supply is cut-off the wheel stops in 10 seconds. The number of revolutions made by the wheel before coming to rest would be a.1500 b.3000 c.1000 d.250 e.500

Last Answer : d. 250

In a single threaded worm and worm wheel the number of teeth on the worm wheel is 80. The diameter of the effort wheel is 12 cm and that of load drum is 8 cm. The velocity ratio will be a.60 b.45 c.120 d.107 dynes e.90

Description : In a single threaded worm and worm wheel the number of teeth on the worm wheel is 80. The diameter of the effort wheel is 12 cm and that of load drum is 8 cm. The velocity ratio will be a.60 b.45 c.120 d.107 dynes e.90

Last Answer : c. 120

The torque of 50 Nm is applied on the wheel operating a valve. If the wheel is rotated through two revolutions, work done in Newton-metres is given by a.628 b.107 dynes c.314 d.25 e.100

Description : The torque of 50 Nm is applied on the wheel operating a valve. If the wheel is rotated through two revolutions, work done in Newton-metres is given by a.628 b.107 dynes c.314 d.25 e.100

Last Answer : a. 628

A wheel 8 mts in diameter coasts to rest from a speed of 800 rpm in 10 minutes. Its angular deceleration is a.308/min2 b.683 rad/min2 c.502 rad/min2 d.107 dynes e.809 rad/min2

Description : A wheel 8 mts in diameter coasts to rest from a speed of 800 rpm in 10 minutes. Its angular deceleration is a.308/min2 b.683 rad/min2 c.502 rad/min2 d.107 dynes e.809 rad/min2

Last Answer : c. 502 rad/min2

A grinding wheel is rotating at 3000 rpm. When the switch is turned off the wheel stops in 10 seconds. The uniform deceleration of the wheel was a.1 rad/s2 b.31.4 rad/s2 c.4 rad/s2 d.62.8 rad/s2 e.10.4 rad/s2

Description : A grinding wheel is rotating at 3000 rpm. When the switch is turned off the wheel stops in 10 seconds. The uniform deceleration of the wheel was a.1 rad/s2 b.31.4 rad/s2 c.4 rad/s2 d.62.8 rad/s2 e.10.4 rad/s2

Last Answer : b. 31.4 rad/s2

A wheel accelerates from rest with an acceleration of 6 rad/sec2. How many revolutions are experienced in 4 seconds? a.12.36 b.25.6 c.9.82 d.107 dynes e.7.64

Description : A wheel accelerates from rest with an acceleration of 6 rad/sec2. How many revolutions are experienced in 4 seconds? a.12.36 b.25.6 c.9.82 d.107 dynes e.7.64

Last Answer : e. 7.64

Instantaneous centre for a rolling wheel on a straight track will be at a.107 dynes b.A c.B d.C e.D

Description : Instantaneous centre for a rolling wheel on a straight track will be at a.107 dynes b.A c.B d.C e.D

Last Answer : e. D

When a train is rounding a curve to prevent side thrust on the wheel flanges of cars a.Opposite thrust is created to counter balance this thrust b.Guide rail sections are provided to take care of thrust c.Thrust eliminators are provided in the train d.Outside rails are realised e.Rail section is made thick on curvature

Description : When a train is rounding a curve to prevent side thrust on the wheel flanges of cars a.Opposite thrust is created to counter balance this thrust b.Guide rail sections are provided to take care of ... are provided in the train d.Outside rails are realised e.Rail section is made thick on curvature

Last Answer : d. Outside rails are realised

In the impact problems the following conditions must always be satisfied a.The total kinetic energy remains unchanged b.The total linear momentum remains unchanged c.The magnitude of the total linear momentum is multiplied by the coefficient of restitution d.The kinetic energy of the system is reduced by a factor proportional to the coefficient of restitution e.None of the above

Description : In the impact problems the following conditions must always be satisfied a.The total kinetic energy remains unchanged b.The total linear momentum remains unchanged c.The magnitude of the total linear ... is reduced by a factor proportional to the coefficient of restitution e.None of the above

Last Answer : b. The total linear momentum remains unchanged

A jet engine works on the principle of a.Conservation of energy b.Conservation of mass and momentum c.Conservation of linear mementum d.Conservation of energy and momentum e.Conservation of mass

Description : A jet engine works on the principle of a.Conservation of energy b.Conservation of mass and momentum c.Conservation of linear mementum d.Conservation of energy and momentum e.Conservation of mass

Last Answer : c. Conservation of linear mementum

The piston of a steam engine moves in S.H.M. The crank rotates at 180 r.p.m. and the stroke length is 2 metres. The linear velocity of the piston when it is at a distance of 1 metre from the centre is a.8.88 m/sec b.16.32 m/sec c.5.88 m/sec d.8.16 m/sec e.Zero

Description : The piston of a steam engine moves in S.H.M. The crank rotates at 180 r.p.m. and the stroke length is 2 metres. The linear velocity of the piston when it is at a distance of 1 metre from the centre is a.8.88 m/sec b.16.32 m/sec c.5.88 m/sec d.8.16 m/sec e.Zero

Last Answer : e. Zero

The torque acting on a system is zero. Which of the following will be conserved? a.Angular velocity b.Linear momentum c.107 dynes d.Angular momentum e.Moment of inertia

Description : The torque acting on a system is zero. Which of the following will be conserved? a.Angular velocity b.Linear momentum c.107 dynes d.Angular momentum e.Moment of inertia

Last Answer : d. Angular momentum

Which of the following statement is false? a.The potential energy of a particle has the form Ep = k2x. The force acting on the particle is constant (k is a constant) b.The linear velocity of bodies near the earth's equator (due to rotation of earth) is more than the velocities of particles at the pole c.107 dynes d.A cyclist should move along a zig-zag path while ascending a steep hill e.The density of milk decreases when cream is taken out of milk

Description : Which of the following statement is false? a.The potential energy of a particle has the form Ep = k2x. The force acting on the particle is constant (k is a constant) b.The linear velocity of ... zag path while ascending a steep hill e.The density of milk decreases when cream is taken out of milk

Last Answer : e. The density of milk decreases when cream is taken out of milk

A particle starts from rest and moves in a straight line whose equation of motion is given by S = 2t3 - t2 - 1. The acceleration of the particle after one sec will be a.6 m/sec2 b.4 m/sec2 c.12 m/sec2 d.10 m/sec2 e.8 m/sec2

Description : A particle starts from rest and moves in a straight line whose equation of motion is given by S = 2t3 - t2 - 1. The acceleration of the particle after one sec will be a.6 m/sec2 b.4 m/sec2 c.12 m/sec2 d.10 m/sec2 e.8 m/sec2

Last Answer : d. 10 m/sec2

A particle in simple Harmonic Motion while passing through mean position will have a.Maximum kinetic energy and minimum potential energy b.Average kinetic energy and average potential energy c.Minimum kinetic energy and maximum potential energy d.Maximum kinetic energy and maximum e.Minimum kinetic energy and minimum potential energy

Description : A particle in simple Harmonic Motion while passing through mean position will have a.Maximum kinetic energy and minimum potential energy b.Average kinetic energy and average potential energy c. ... energy d.Maximum kinetic energy and maximum e.Minimum kinetic energy and minimum potential energy

Last Answer : a. Maximum kinetic energy and minimum potential energy

If for power transmission a gear train consisting of 8 gears is used, then a.the motion of driver and follower will be in the same direction b.the motion of driver and follower will be in the opposite directions c.either of (A) or (B) above d.None of the above e.107 dynes

Description : If for power transmission a gear train consisting of 8 gears is used, then a.the motion of driver and follower will be in the same direction b.the motion of driver and follower will be in the opposite directions c.either of (A) or (B) above d.None of the above e.107 dynes

Last Answer : b. the motion of driver and follower will be in the opposite directions

The periodic time of a body moving in Simple Harmonic Motion is a.Directly proportional to its angular velocity b.Directly proportional to the weight of the body c.Inversely proportional to the square of angular velocity d.Directly proportional to the momentum of swinging body e.Inversely proportional to the angular velocity

Description : The periodic time of a body moving in Simple Harmonic Motion is a.Directly proportional to its angular velocity b.Directly proportional to the weight of the body c.Inversely proportional to ... d.Directly proportional to the momentum of swinging body e.Inversely proportional to the angular velocity

Last Answer : e. Inversely proportional to the angular velocity

According to Kepler's law of motion the square of the time period T of a planet around the sun is proportional to the a.mean distance b.square of the mean distance of planet from sun c.cube of the mean distance of planet from sun d.107 dynes e.3/2 power of the mean distance

Description : According to Kepler's law of motion the square of the time period T of a planet around the sun is proportional to the a.mean distance b.square of the mean distance of planet from sun c.cube of the mean distance of planet from sun d.107 dynes e.3/2 power of the mean distance

Last Answer : c. cube of the mean distance of planet from sun

If the angle of friction is zero a body will experience a.Infinite friction b.Zero friction c.The force of friction will act normal to the plane d.The force of friction will act in the direction of motion e.None of the above

Description : If the angle of friction is zero a body will experience a.Infinite friction b.Zero friction c.The force of friction will act normal to the plane d.The force of friction will act in the direction of motion e.None of the above

Last Answer : b. Zero friction

The moment of a force a.Occurs about a point b.Measures the capacity to do useful work c.Occurs only when bodies are in motion d.Measures the ability to produce turning or twisting about an axes e.None of the above

Description : The moment of a force a.Occurs about a point b.Measures the capacity to do useful work c.Occurs only when bodies are in motion d.Measures the ability to produce turning or twisting about an axes e.None of the above

Last Answer : d. Measures the ability to produce turning or twisting about an axes

The statement the resultant of the external forces applied to a body (rigid or non-rigid) composed of a system of particles is equivalent to the vector summation of the effective forces acting on all particles-is known as a.Corollary to Newton's laws of motion b.Principle of dynamics c.D' Alembert's principle d.Nowton's law e.Mohr's principle

Description : The statement the resultant of the external forces applied to a body (rigid or non-rigid) composed of a system of particles is equivalent to the vector summation of the effective forces acting on all ... motion b.Principle of dynamics c.D' Alembert's principle d.Nowton's law e.Mohr's principle

Last Answer : c. D' Alembert's principle

Which one of the following is not the law of dry friction? a.If friction is neglected, the reactions are always normal to the surfaces on contact b.Friction always acts to oppose the relative motion of the free body c.If static friction is acting, the value of the friction force may vary from zero to its maximum value d.The force of friction is always normal to the surface e.All of the above

Description : Which one of the following is not the law of dry friction? a.If friction is neglected, the reactions are always normal to the surfaces on contact b.Friction always acts to oppose the relative motion of ... its maximum value d.The force of friction is always normal to the surface e.All of the above

Last Answer : d. The force of friction is always normal to the surface

A body in Simple Harmonic Motion will attain maximum velocity when it passes through a.Point of 0.75 amplitude b.Extreme point of the oscillation of L.H.S. c.Point of half amplitude d.Extreme point of the oscillation at R.H.S. e.Mean position

Description : A body in Simple Harmonic Motion will attain maximum velocity when it passes through a.Point of 0.75 amplitude b.Extreme point of the oscillation of L.H.S. c.Point of half amplitude d.Extreme point of the oscillation at R.H.S. e.Mean position

Last Answer : e. Mean position

Coulomb's law for the force between electric charges most closely resembles a.Newton's laws of motion b.Law of conservation of energy c.Gauss's theorem d.Newton's law of gravitation e.None of the above

Description : Coulomb's law for the force between electric charges most closely resembles a.Newton's laws of motion b.Law of conservation of energy c.Gauss's theorem d.Newton's law of gravitation e.None of the above

Last Answer : d. Newton's law of gravitation

Coulomb friction is a.Friction between solids and liquids b.Friction between electrically charged bodies c.Friction between lubricated surface d.Friction between dry surfaces e.Friction between bodies having relative motion

Description : Coulomb friction is a.Friction between solids and liquids b.Friction between electrically charged bodies c.Friction between lubricated surface d.Friction between dry surfaces e.Friction between bodies having relative motion

Last Answer : d. Friction between dry surfaces

The moving parts of a machine which weigh 1 tonne perform vertical simple harmonic motion with an amplitude of 2.5 cm and a period of 0.5 sec. The base of the machine weighs 3 tonnes and rests on the ground. Maximum reactions on the ground would be a.3.6 tonnes b.2.4 tonnes c.4.0 tonnes d.4.8 tonnes e.4.4 tonnes

Description : The moving parts of a machine which weigh 1 tonne perform vertical simple harmonic motion with an amplitude of 2.5 cm and a period of 0.5 sec. The base of the machine weighs 3 tonnes and rests on the ground. Maximum ... would be a.3.6 tonnes b.2.4 tonnes c.4.0 tonnes d.4.8 tonnes e.4.4 tonnes

Last Answer : e. 4.4 tonnes

A particle is moving in Simple Harmonic Motion in a simple pendulum with some period of oscillation. Now in order to double the period of oscillation a.The length of pendulum should be quadrupled b.The length of pendulum should be doubled c.The mass of the bob should be halved d.The length of pendulum should be reduced to one fourth e.The mass of the bob should be doubled

Description : A particle is moving in Simple Harmonic Motion in a simple pendulum with some period of oscillation. Now in order to double the period of oscillation a.The length of pendulum should be quadrupled b.The ... length of pendulum should be reduced to one fourth e.The mass of the bob should be doubled

Last Answer : a. The length of pendulum should be quadrupled

A body of weight 100 kg is placed on a horizontal plane. A horizontal force of 30 kg is applied and the block is just on the point of motion. The angle of friction is a.About 16? b.30? c.45? d.60? e.None of the above

Description : A body of weight 100 kg is placed on a horizontal plane. A horizontal force of 30 kg is applied and the block is just on the point of motion. The angle of friction is a.About 16? b.30? c.45? d.60? e.None of the above

Last Answer : a. About 16?

A body is executing simple harmonic motion of amplitude 1 cm. Its velocitywhile passing through the central point is 10 mm/sec. Its frequency will be a.2.99 rps b.2.22 rps c.1 rps d.1.59 rps e.1.77 rps

Description : A body is executing simple harmonic motion of amplitude 1 cm. Its velocitywhile passing through the central point is 10 mm/sec. Its frequency will be a.2.99 rps b.2.22 rps c.1 rps d.1.59 rps e.1.77 rps

Last Answer : c. 1 rps

Which of the following statement is incorrect? a.A body can have energy without having momentum b.A body cannot have kinetic energy without having momentum c.A body in motion will always have kinetic energy more than the potential energy d.None of the above e.107 dynes

Description : Which of the following statement is incorrect? a.A body can have energy without having momentum b.A body cannot have kinetic energy without having momentum c.A body in motion will always have kinetic energy more than the potential energy d.None of the above e.107 dynes

Last Answer : c. A body in motion will always have kinetic energy more than the potential energy

The displacement of a particle under going rectilinear motion along the x-axis is given by x = 2t3 + 21t2 + 60t + 6 metres. a.27 m/s2 b.18 m/s2 c.36 m/s2 d.9 m/s2 e.107 dynes

Description : The displacement of a particle under going rectilinear motion along the x-axis is given by x = 2t3 + 21t2 + 60t + 6 metres. a.27 m/s2 b.18 m/s2 c.36 m/s2 d.9 m/s2 e.107 dynes

Last Answer : d. 9 m/s2

A body is vibrating with simple harmonic motion of aplitude 5 cm frequency 10 vibrations per second. The maximum value of velocity in cm/s will be a.3.14 cm/s b.314 cm/s c.3140 cm/s d.31.4 cm/s e.31400 cm/s

Description : A body is vibrating with simple harmonic motion of aplitude 5 cm frequency 10 vibrations per second. The maximum value of velocity in cm/s will be a.3.14 cm/s b.314 cm/s c.3140 cm/s d.31.4 cm/s e.31400 cm/s

Last Answer : b. 314 cm/s

If for power transmission a gear train consisting of 11 gears is used, then a.the motion of driver and follower will be in the same direction b.The motion of driver and follower will be in the opposite direction c.either of (A) or (B) above d.None of the above e.107 dynes

Description : If for power transmission a gear train consisting of 11 gears is used, then a.the motion of driver and follower will be in the same direction b.The motion of driver and follower will be in the opposite direction c.either of (A) or (B) above d.None of the above e.107 dynes

Last Answer : a. the motion of driver and follower will be in the same direction

The coefficient of friction is a.The tangent of the angle between the normal reaction and direction of limiting friction b.The tangent of the angle between the normal reaction and the resultant of the normal reaction and the limiting friction c.The tangent of the angle of the net resultant force with the direction of motion d.The tangent of the angle between the horizontal plane and the resultant force e.The angle between the normal reaction and the resultant of normal reaction and the limiting friction

Description : The coefficient of friction is a.The tangent of the angle between the normal reaction and direction of limiting friction b.The tangent of the angle between the normal reaction and the resultant ... e.The angle between the normal reaction and the resultant of normal reaction and the limiting friction

Last Answer : a. The tangent of the angle between the normal reaction and direction of limiting friction

The limiting force of fiction is a.The friction force acting on a body when it is in motion b.The value of friction force which stops the movement of the body c.The value of friction force which cannot exceed under a situation d.The friction force acting when the body is just about to move e.Double of the normal friction

Description : The limiting force of fiction is a.The friction force acting on a body when it is in motion b.The value of friction force which stops the movement of the body c.The value of friction force which ... d.The friction force acting when the body is just about to move e.Double of the normal friction

Last Answer : d. The friction force acting when the body is just about to move

The moment of a force is a.Equivalent to the algebraic sum of the moments acting on a body b.Equivalent to the sum of horizontal as well as vertical components of the moments on a body c.Equivalent to the sum of the moments acting on a body d.Equivalent to the sum of horizontal components of the moments on a body e.Equivalent to the vertical sum of the moments acting on a body

Description : The moment of a force is a.Equivalent to the algebraic sum of the moments acting on a body b.Equivalent to the sum of horizontal as well as vertical components of the moments on a body c.Equivalent ... of the moments on a body e.Equivalent to the vertical sum of the moments acting on a body

Last Answer : a. Equivalent to the algebraic sum of the moments acting on a body

Minimum horsepower of pump required for filling 50m3 water tank, 20 metres high from ground in 30 minutes by lifting water from a well 5 metres below the ground level is a.5.45 KW b.7.5 KW c.6.81 KW d.Tapered bearing e.66.8 KW

Description : Minimum horsepower of pump required for filling 50m3 water tank, 20 metres high from ground in 30 minutes by lifting water from a well 5 metres below the ground level is a.5.45 KW b.7.5 KW c.6.81 KW d.Tapered bearing e.66.8 KW

Last Answer : c. 6.81 KW

What type of joint at hinges of a door?  1. Translatory Joints  2. Rotary Joints  3. Revaluate Joints

Description : What type of joint at hinges of a door?  1. Translatory Joints  2. Rotary Joints  3. Revaluate Joints

Last Answer : 2

Which of the following is the type of Joints in Robots?  1. Rotary Joints  2. Translatory Joints  3. Revaluate Joints  4. (1) and (2) only

Description : Which of the following is the type of Joints in Robots?  1. Rotary Joints  2. Translatory Joints  3. Revaluate Joints  4. (1) and (2) only

Last Answer : 4

SCARA robot is very suitable in which kind of operations?  1. Single Operation  2. Rotary Operation  3. Assembly Operation  4. Translatory Operation

Description : SCARA robot is very suitable in which kind of operations?  1. Single Operation  2. Rotary Operation  3. Assembly Operation  4. Translatory Operation

Last Answer : 3

Which kind of motion get with the help of prismatic joint in robotics. (A) Rotary motion (B) Linear motion

Description : Which kind of motion get with the help of prismatic joint in robotics. (A) Rotary motion (B) Linear motion

Last Answer : B

Which kind of motion get with the help of revolute joint in robotics. (A) Linear motion (B) Rotary motion

Description : Which kind of motion get with the help of revolute joint in robotics. (A) Linear motion (B) Rotary motion

Last Answer : B

The units of moment of inertia are a.kgm4 b.kg-m2 c.kg/m2 d.kg/m e.m4

Description : The units of moment of inertia are a.kgm4 b.kg-m2 c.kg/m2 d.kg/m e.m4

Last Answer : c. kg/m2