In the shown figure, the tension (T) in the string will be
In the shown figure, the tension (T) in the string will be
The periodic time of a particle with simple harmonic motion is _________ proportional to the angular velocity.
The periodic time of a particle with simple harmonic motion is _________ proportional to the angular velocity.
The time of flight (t) of a projectile on an upward inclined plane is(where u = Velocity of projection, α = Angle of projection, and β = Inclination of the plane with the horizontal.)
The time of flight (t) of a projectile on an upward inclined plane is(where u = Velocity of projection, α = Angle of projection, and β = Inclination of the plane with the horizontal.)
The Cartesian equation of trajectory is (where u = Velocity of projection, α = Angle of projection, and x, y = Co-ordinates of any point on the trajectory after t seconds.)
The Cartesian equation of trajectory is (where u = Velocity of projection, α = Angle of projection, and x, y = Co-ordinates of any point on the trajectory after t seconds.)
If the body falls freely under gravity, then the gravitational acceleration is taken as
If the body falls freely under gravity, then the gravitational acceleration is taken as
A body of mass ‘m’ moving with a constant velocity ‘v’ strikes another body of same mass moving with same velocity but in opposite direction. The common velocity of both the bodies after collision is
A body of mass ‘m’ moving with a constant velocity ‘v’ strikes another body of same mass moving with same velocity but in opposite direction. The common velocity of both the bodies after collision is
The maximum efficiency of a lifting machine is
The maximum efficiency of a lifting machine is
A framed structure is imperfect, if the numbers of members are __________ (2j - 3).
A framed structure is imperfect, if the numbers of members are __________ (2j - 3).
If u₁ and u₂ are the velocities of two moving bodies in the same direction before impact and v₁ and v₂ are their velocities after impact, then coefficient of restitution is given by
If u₁ and u₂ are the velocities of two moving bodies in the same direction before impact and v₁ and v₂ are their velocities after impact, then coefficient of restitution is given by
The algebraic sum of moments of the forces forming couple about any point in their plane is
The algebraic sum of moments of the forces forming couple about any point in their plane is
The point, through which the whole weight of the body acts, irrespective of its position, is known as
The point, through which the whole weight of the body acts, irrespective of its position, is known as
A body moves, from rest with a constant acceleration of 5 m per sec. The distance covered in 5 sec is most nearly
A body moves, from rest with a constant acceleration of 5 m per sec. The distance covered in 5 sec is most nearly
The motion of a wheel of a car is
The motion of a wheel of a car is
The rate of doing work is known as
The rate of doing work is known as
The amplitude is always __________ radius of the circle.
The amplitude is always __________ radius of the circle.
The forces, which meet at one point and their lines of action also lie on the same plane, are known as
The forces, which meet at one point and their lines of action also lie on the same plane, are known as
The horizontal range of a projectile (R) is given by
The horizontal range of a projectile (R) is given by
Mass moment of inertia of a uniform thin rod of mass M and length (l) about its mid-point and perpendicular to its length is
Mass moment of inertia of a uniform thin rod of mass M and length (l) about its mid-point and perpendicular to its length is
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 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
The unit of angular velocity is
The unit of angular velocity is
A pair of smith's tongs is an example of the lever of
A pair of smith's tongs is an example of the lever of
The weight of a body is due to
The weight of a body is due to
The matter contained in a body, is called
The matter contained in a body, is called
Two forces are acting at an angle of 120°. The bigger force is 40 N and the resultant is perpendicular to the smaller one. The smaller force is
Two forces are acting at an angle of 120°. The bigger force is 40 N and the resultant is perpendicular to the smaller one. The smaller force is
The periodic time of one oscillation for a simple pendulum is (where l = Length of the pendulum.)
The periodic time of one oscillation for a simple pendulum is (where l = Length of the pendulum.)
A cable with a uniformly distributed load per horizontal meter run will take the following shape
A cable with a uniformly distributed load per horizontal meter run will take the following shape
Two blocks ‘A’ and ‘B’ of masses 150 kg and 50 kg respectively are connected by means of a string as shown in the below figure. The tension in all the three strings __________ be same.
Two blocks ‘A’ and ‘B’ of masses 150 kg and 50 kg respectively are connected by means of a string as shown in the below figure. The tension in all the three strings __________ be same.
A redundant frame is also called __________ frame.
A redundant frame is also called __________ frame.
One joule means that
One joule means that
The unit of force in S.I. units is
The unit of force in S.I. units is
The wheels of a moving car possess
The wheels of a moving car possess
The friction experienced by a body, when in motion, is known as
The friction experienced by a body, when in motion, is known as
The forces which do not meet at one point and their lines of action do not lie on the same plane are known as
The forces which do not meet at one point and their lines of action do not lie on the same plane are known as
If a body is acted upon by a number of coplanar non-concurrent forces, it may
If a body is acted upon by a number of coplanar non-concurrent forces, it may
A differential pulley block has larger and smaller diameters of 100 mm and 80 mm respectively. Its velocity ratio is
A differential pulley block has larger and smaller diameters of 100 mm and 80 mm respectively. Its velocity ratio is
A sample of metal weighs 219 gms in air, 180 gms in water, 120 gms in an unknown fluid. Then which is correct statement about density of metal
A sample of metal weighs 219 gms in air, 180 gms in water, 120 gms in an unknown fluid. Then which is correct statement about density of metal
The center of gravity of a triangle lies at the point of
The center of gravity of a triangle lies at the point of
The centre of gravity a T-section 100 mm × 150 mm × 50 mm from its bottom is
The centre of gravity a T-section 100 mm × 150 mm × 50 mm from its bottom is
The forces which meet at one point, but their lines of action __________ on the same plane, are Known as non-coplanar concurrent forces.
The forces which meet at one point, but their lines of action __________ on the same plane, are Known as non-coplanar concurrent forces.
The maximum efficiency of a screw jack is
The maximum efficiency of a screw jack is
Which of the following is not the unit of pressure?
Which of the following is not the unit of pressure?
The moment of inertia of a solid cone of mass ‘m’ and base radius ‘r’ about its vertical axis is
The moment of inertia of a solid cone of mass ‘m’ and base radius ‘r’ about its vertical axis is
The center of gravity of a quadrant of a circle lies along its central radius (r) at a distance of
The center of gravity of a quadrant of a circle lies along its central radius (r) at a distance of
The velocity ratio of a differential pulley block with D and d as the diameters of larger and smaller pulley, is
The velocity ratio of a differential pulley block with D and d as the diameters of larger and smaller pulley, is
In ideal machines, mechanical advantage is __________ velocity ratio.
In ideal machines, mechanical advantage is __________ velocity ratio.
The acceleration of a body sliding down an inclined surface is
The acceleration of a body sliding down an inclined surface is
Static friction is always __________ dynamic friction.
Static friction is always __________ dynamic friction.
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 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
If a number of coplanar forces acting at a point be in equilibrium, the sum of clockwise moments must be __________ the sum of anticlockwise moments, about any point.
If a number of coplanar forces acting at a point be in equilibrium, the sum of clockwise moments must be __________ the sum of anticlockwise moments, about any point.
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
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
The acceleration of a particle moving with simple harmonic motion is __________ at the mean position.
The acceleration of a particle moving with simple harmonic motion is __________ at the mean position.
If a rigid body is in equilibrium under the action of three forces, then
If a rigid body is in equilibrium under the action of three forces, then
The velocity of a particle moving with simple harmonic motion is _________ at the mean position.
The velocity of a particle moving with simple harmonic motion is _________ at the mean position.
Coulomb friction is the friction between
Coulomb friction is the friction between
Which of the following is not the unit of distance?
Which of the following is not the unit of distance?
The total motion possessed by a body, is called
The total motion possessed by a body, is called
The moment of inertia of a thin rod of mass 'm' and length 'l', about an axis through its centre of gravity and perpendicular to its length is
The moment of inertia of a thin rod of mass 'm' and length 'l', about an axis through its centre of gravity and perpendicular to its length is
The necessary condition for forces to be in equilibrium is that these should be
The necessary condition for forces to be in equilibrium is that these should be
If the resultant of two equal forces has the same magnitude as either of the forces, then the angle between the two forces is
If the resultant of two equal forces has the same magnitude as either of the forces, then the angle between the two forces is
The moment of inertia of a square of side a about its diagonal is
The moment of inertia of a square of side a about its diagonal is
Varingon's theorem of moments states that if a number of coplanar forces acting on a particle are in equilibrium, then
Varingon's theorem of moments states that if a number of coplanar forces acting on a particle are in equilibrium, then
The units of moment of inertia of an area are
The units of moment of inertia of an area are
Concurrent forces are those forces whose lines of action
Concurrent forces are those forces whose lines of action
The ratio of static friction to dynamic friction is always
The ratio of static friction to dynamic friction is always
A semicircular disc rests on a horizontal surface with its top flat surface horizontal and circular portion touching down. The coefficient of friction between semi circular disc and horizontal surface is µ. This disc is to be pulled by a horizontal force applied at one edge and it always remains horizontal. When the disc is about to start moving, its top horizontal force will
A semicircular disc rests on a horizontal surface with its top flat surface horizontal and circular portion touching down. The coefficient of friction between semi circular disc and horizontal surface is µ. This disc is to be pulled by a horizontal force applied at one edge and it always remains horizontal. When the disc is about to start moving, its top horizontal force will
The slope on the road surface generally provided on the curves is known as
The slope on the road surface generally provided on the curves is known as
Limiting force of friction is the
Limiting force of friction is the
Forces are called concurrent when their lines of action meet in
Forces are called concurrent when their lines of action meet in
The motion of a particle round a fixed axis is
The motion of a particle round a fixed axis is
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. This statement is known as
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. This statement is known as
The centre of gravity of an isosceles triangle with base (p) and sides (q) from its base is
The centre of gravity of an isosceles triangle with base (p) and sides (q) from its base is
The maximum acceleration of a particle moving with simple harmonic motion is
The maximum acceleration of a particle moving with simple harmonic motion is
The impact between two lead spheres is approximately equal to an __________ impact.
The impact between two lead spheres is approximately equal to an __________ impact.
The unit of angular acceleration is
The unit of angular acceleration is
A body moves, from rest with a constant acceleration of 5 m per sec. The distance covered in 5 sec is most nearly
A body moves, from rest with a constant acceleration of 5 m per sec. The distance covered in 5 sec is most nearly
The unit of work in S.I. units is
The unit of work in S.I. units is
The angular velocity (in rad/s) of a body rotating at N revolutions per minute is
The angular velocity (in rad/s) of a body rotating at N revolutions per minute is
One kg force is equal to
One kg force is equal to
The C.G. of a plane lamina will not be at its geometrical centre in the case of a
The C.G. of a plane lamina will not be at its geometrical centre in the case of a
The below figure shows the three coplanar forces P, Q and R acting at a point O. If these forces are in equilibrium, then
The below figure shows the three coplanar forces P, Q and R acting at a point O. If these forces are in equilibrium, then
Tension in the cable supporting a lift is more when the lift is moving __________ with an acceleration.
Tension in the cable supporting a lift is more when the lift is moving __________ with an acceleration.
The velocity ratio of a first system of pulleys with 4 pulleys is
The velocity ratio of a first system of pulleys with 4 pulleys is
The law of motion involved in the recoil of gun is
The law of motion involved in the recoil of gun is
If a number of forces act simultaneously on a particle, it is possible
If a number of forces act simultaneously on a particle, it is possible
The resultant of two forces P and Q (such that P > Q) acting along the same straight line, but in opposite direction, is given by
The resultant of two forces P and Q (such that P > Q) acting along the same straight line, but in opposite direction, is given by
The velocity ratio of a single purchase crab winch can be increased by
The velocity ratio of a single purchase crab winch can be increased by
When a body falls freely under gravitational force, it possesses __________ weight.
When a body falls freely under gravitational force, it possesses __________ weight.
The static friction
The static friction
Which of the following is not the unit of work, energy and heat?
Which of the following is not the unit of work, energy and heat?
The bodies which rebound after impact are called
The bodies which rebound after impact are called
The units of moment of inertia of mass are
The units of moment of inertia of mass are
Which of the following statement is correct in connection with projectiles?
Which of the following statement is correct in connection with projectiles?
Moment of inertia of a hollow rectangular section as shown in the below figure about X-X axis, is
Moment of inertia of a hollow rectangular section as shown in the below figure about X-X axis, is
When a person, on a bicycle, drives round a curve, he has to lean __________ to maintain equilibrium.
When a person, on a bicycle, drives round a curve, he has to lean __________ to maintain equilibrium.
The moment of a force
The moment of a force
The velocity ratio for the first system of pulleys is (where n is the number of pulleys.)
The velocity ratio for the first system of pulleys is (where n is the number of pulleys.)
Two like parallel forces are acting at a distance of 24 mm apart and their resultant is 20 N. It the line of action of the resultant is 6 mm from any given force, the two forces are
Two like parallel forces are acting at a distance of 24 mm apart and their resultant is 20 N. It the line of action of the resultant is 6 mm from any given force, the two forces are
The unit of force in S.I. system of units is
The unit of force in S.I. system of units is
If a suspended body is struck at the center of percussion, then the pressure on die axis passing through the point of suspension will be
If a suspended body is struck at the center of percussion, then the pressure on die axis passing through the point of suspension will be
The term 'Centroid' is
The term 'Centroid' is
The force applied on a body of mass 100 kg to produce an acceleration of 5 m/s2, is
The force applied on a body of mass 100 kg to produce an acceleration of 5 m/s2, is
One joule is equal to
One joule is equal to
The centre of percussion of the homogeneous rod of length ‘L’ suspended at the top will be
The centre of percussion of the homogeneous rod of length ‘L’ suspended at the top will be
The resultant of the two forces ‘P’ and ‘Q’ is ‘R’. If ‘Q’ is doubled, the new resultant is perpendicular to ‘P’. Then
The resultant of the two forces ‘P’ and ‘Q’ is ‘R’. If ‘Q’ is doubled, the new resultant is perpendicular to ‘P’. Then
The angle which an inclined plane makes with the horizontal when a body placed on it is about to move down is known as angle of
The angle which an inclined plane makes with the horizontal when a body placed on it is about to move down is known as angle of
The total energy possessed by a system of moving bodies
The total energy possessed by a system of moving bodies
Moment of inertia is the
Moment of inertia is the
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
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
The magnitude of two forces, which when acting at right angle produce resultant force of VlOkg and when acting at 60° produce resultant of Vl3 kg. These forces are
The magnitude of two forces, which when acting at right angle produce resultant force of VlOkg and when acting at 60° produce resultant of Vl3 kg. These forces are
In order to double the period of simple pendulum, the length of the string should be
In order to double the period of simple pendulum, the length of the string should be
A spherical body is symmetrical about its perpendicular axis. According to Routh's rule, the moment of inertia of a body about an axis passing through its centre of gravity is (where, M = Mass of the body, and S = Sum of the squares of the two semi-axes.)
A spherical body is symmetrical about its perpendicular axis. According to Routh's rule, the moment of inertia of a body about an axis passing through its centre of gravity is (where, M = Mass of the body, and S = Sum of the squares of the two semi-axes.)
The moment of inertia of a thin spherical shell of mass m and radius r, about its diameter is
The moment of inertia of a thin spherical shell of mass m and radius r, about its diameter is
The center of percussion of a solid cylinder of radius ‘r’ resting on a horizontal plane will be
The center of percussion of a solid cylinder of radius ‘r’ resting on a horizontal plane will be
A body of weight 'W' is required to move up on rough inclined plane whose angle of inclination with the horizontal is 'α'. The effort applied parallel to the plane is given by (where μ = tanφ = Coefficient of friction between the plane and the body.)
A body of weight 'W' is required to move up on rough inclined plane whose angle of inclination with the horizontal is 'α'. The effort applied parallel to the plane is given by (where μ = tanφ = Coefficient of friction between the plane and the body.)
The length of a second's pendulum is
The length of a second's pendulum is
According to the law of moments, if a number of coplanar forces acting on a particle are in equilibrium, then
According to the law of moments, if a number of coplanar forces acting on a particle are in equilibrium, then
The moment of the force ‘P’ about ‘O’ as shown in the below figure is
The moment of the force ‘P’ about ‘O’ as shown in the below figure is
Which of the following statement is incorrect?
Which of the following statement is incorrect?
The center of gravity of a trapezium with parallel sides 'a' and 'b' lies at a distance of 'y' from the base 'b', as shown in the below figure. The value of 'y' is
The center of gravity of a trapezium with parallel sides 'a' and 'b' lies at a distance of 'y' from the base 'b', as shown in the below figure. The value of 'y' is
The resultant of two forces P and Q acting at an angle θ is
The resultant of two forces P and Q acting at an angle θ is
