On the ladder resting on the ground and leaning against a smooth vertical wall, the force of friction will be
On the ladder resting on the ground and leaning against a smooth vertical wall, the force of friction will be
Centre of gravity of a solid cone lies on the axis at the height
Centre of gravity of a solid cone lies on the axis at the height
Two coplanar couples having equal and opposite moments
Two coplanar couples having equal and opposite moments
Moment of inertia of a triangular section of base (b) and height (h) about an axis through its base, is
Moment of inertia of a triangular section of base (b) and height (h) about an axis through its base, is
In order to determine the effects of a force, acting on a body, we must know
In order to determine the effects of a force, acting on a body, we must know
The angle of inclination of the plane at which the body begins to move down the plane, is called
The angle of inclination of the plane at which the body begins to move down the plane, is called
A flywheel on a motor goes from rest to 1000 rpm in 6 sec. The number of revolutions made is nearly equal to
A flywheel on a motor goes from rest to 1000 rpm in 6 sec. The number of revolutions made is nearly equal to
The process of finding out the resultant force is called __________ of forces.
The process of finding out the resultant force is called __________ of forces.
A framed structure is perfect if it contains members equal to (Where, n = number of joints in a frame)
A framed structure is perfect if it contains members equal to (Where, n = number of joints in a frame)
In a screw jack, the effort required to lift the load is given by (where W = Load lifted, α = Helix angle, and φ = Angle of friction.)
In a screw jack, the effort required to lift the load is given by (where W = Load lifted, α = Helix angle, and φ = Angle of friction.)
The unit of moment of inertia of an area is
The unit of moment of inertia of an area is
Forces are called coplanar when all of them acting on body lie in
Forces are called coplanar when all of them acting on body lie in
In a framed structure, as shown in the below figure, the force in the member BC is
In a framed structure, as shown in the below figure, the force in the member BC is
In actual machines
In actual machines
Dynamic friction as compared to static friction is
Dynamic friction as compared to static friction is
The acceleration of a particle moving with simple harmonic motion, at any instant is given by
The acceleration of a particle moving with simple harmonic motion, at any instant is given by
In actual machines, mechanical advantage is _________ velocity ratio.
In actual machines, mechanical advantage is _________ velocity ratio.
The loss of kinetic energy during inelastic impact, is given by (where m1 = Mass of the first body,m2 = Mass of the second body, and u1 and u2 = Velocities of the first and second bodies respectively.)
The loss of kinetic energy during inelastic impact, is given by (where m1 = Mass of the first body,m2 = Mass of the second body, and u1 and u2 = Velocities of the first and second bodies respectively.)
The force, by which the body is attracted, towards the center of the earth, is called
The force, by which the body is attracted, towards the center of the earth, is called
Coplanar concurrent forces are those forces which
Coplanar concurrent forces are those forces which
The centre of gravity of a uniform lamina lies at
The centre of gravity of a uniform lamina lies at
The moment of inertia of a solid cylinder of mass 'm', radius 'r' and length 'l' about the longitudinal axis or polar axis is
The moment of inertia of a solid cylinder of mass 'm', radius 'r' and length 'l' about the longitudinal axis or polar axis is
Moment of inertia of a hollow circular section, as shown in the below figure about an axis perpendicular to the section, is ________ than that about X-X axis.
Moment of inertia of a hollow circular section, as shown in the below figure about an axis perpendicular to the section, is ________ than that about X-X axis.
If the gravitational acceleration at any place is doubled, then the weight of a body will be
If the gravitational acceleration at any place is doubled, then the weight of a body will be
A lead ball with a certain velocity is made to strike a wall, it falls down, but rubber ball of same mass and with same velocity strikes the same wall, it rebounds. Select the correct reason from the following:
A lead ball with a certain velocity is made to strike a wall, it falls down, but rubber ball of same mass and with same velocity strikes the same wall, it rebounds. Select the correct reason from the following:
Lami's theorem states that
Lami's theorem states that
Which of the following is the locus of a point that moves in such a manner that its distance from a fixed point is equal to its distance from a fixed line multiplied by a constant greater than one
Which of the following is the locus of a point that moves in such a manner that its distance from a fixed point is equal to its distance from a fixed line multiplied by a constant greater than one
Coplanar non-concurrent forces are those forces which __________ at one point, but their lines of action lie on the same plane.
Coplanar non-concurrent forces are those forces which __________ at one point, but their lines of action lie on the same plane.
The C.G. of a solid hemisphere lies on the central radius 3r
The C.G. of a solid hemisphere lies on the central radius 3r
Effect of a force on a body depends upon
Effect of a force on a body depends upon
In order to completely specify angular displacement by a vector, it must fix
In order to completely specify angular displacement by a vector, it must fix
From a circular plate of diameter 6 cm is cut out a circle whose diameter is a radius of the plate. Find the e.g. of the remainder from the centre of circular plate
From a circular plate of diameter 6 cm is cut out a circle whose diameter is a radius of the plate. Find the e.g. of the remainder from the centre of circular plate
Which of the following is a scalar quantity?
Which of the following is a scalar quantity?
The ideal angle of banking provided on the curves on roads depends upon
The ideal angle of banking provided on the curves on roads depends upon
A machine having an efficiency less than 50%, is known as
A machine having an efficiency less than 50%, is known as
The coefficient of friction depends on
The coefficient of friction depends on
A machine having an efficiency greater than 50%, is known as
A machine having an efficiency greater than 50%, is known as
If rain is falling in the opposite direction of the movement of a pedestrian, he has to hold his umbrella
If rain is falling in the opposite direction of the movement of a pedestrian, he has to hold his umbrella
A body will begin to move down an inclined plane if the angle of inclination of the plane is _________ the angle of friction.
A body will begin to move down an inclined plane if the angle of inclination of the plane is _________ the angle of friction.
Whenever a force acts on a body and the body undergoes a displacement, then
Whenever a force acts on a body and the body undergoes a displacement, then
The possible loading in various members of framed structures are
The possible loading in various members of framed structures are
The centre of gravity of a right circular solid cone is at a distance of _________ from its base, measured along the vertical axis.(where h = Height of a right circular solid cone.)
The centre of gravity of a right circular solid cone is at a distance of _________ from its base, measured along the vertical axis.(where h = Height of a right circular solid cone.)
Efficiency of a screw jack is given by (where α = Helix angle, and φ = Angle of friction.)
Efficiency of a screw jack is given by (where α = Helix angle, and φ = Angle of friction.)
A framed structure, as shown in the below figure, is a
A framed structure, as shown in the below figure, is a
In a framed structure, as shown in the below figure, the forces in the members AB and BC are respectively
In a framed structure, as shown in the below figure, the forces in the members AB and BC are respectively
The velocity ratio for the third system of pulleys is
The velocity ratio for the third system of pulleys is
The law of the machine is (where P = Effort applied to lift the load, m = A constant which is equal to the slope of the line, W = Load lifted, and C = Another constant which represents the machine friction.)
The law of the machine is (where P = Effort applied to lift the load, m = A constant which is equal to the slope of the line, W = Load lifted, and C = Another constant which represents the machine friction.)
The range of projectile (R) on an upward inclined plane is
The range of projectile (R) on an upward inclined plane is
Moment of inertia of a triangular section of base (b) and height (h) about an axis passing through its C.G. and parallel to the base, is
Moment of inertia of a triangular section of base (b) and height (h) about an axis passing through its C.G. and parallel to the base, is
Which of the following statement is correct?
Which of the following statement is correct?
The coefficient of restitution for inelastic bodies is
The coefficient of restitution for inelastic bodies is
In ideal machines
In ideal machines
The velocity ratio of a simple wheel and axle with D and d as the diameters of effort wheel and load axle, is
The velocity ratio of a simple wheel and axle with D and d as the diameters of effort wheel and load axle, is
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.
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.
In the lever of third order, load ‘W’, effort ‘P’ and fulcrum ‘F’ are oriented as follows
In the lever of third order, load ‘W’, effort ‘P’ and fulcrum ‘F’ are oriented as follows
In a framed structure, as shown in the below figure, the force in the member AB is __________ the force in member AC.
In a framed structure, as shown in the below figure, the force in the member AB is __________ the force in member AC.
The rate of change of displacement of a body is called
The rate of change of displacement of a body is called
The periodic time (T) is given by (where, ω = Angular velocity of particle in rad/s.)
The periodic time (T) is given by (where, ω = Angular velocity of particle in rad/s.)
The velocity ratio of a differential wheel and axle with 'D' as the diameter of effort wheel and d1 and d2 as the diameters of larger and smaller axles respectively, is
The velocity ratio of a differential wheel and axle with 'D' as the diameter of effort wheel and d1 and d2 as the diameters of larger and smaller axles respectively, is
The principle of transmissibility of forces states that, when a force acts upon a body, its effect is
The principle of transmissibility of forces states that, when a force acts upon a body, its effect is
Frictional force encountered after commencement of motion is called
Frictional force encountered after commencement of motion is called
Kinetic friction is the
Kinetic friction is the
If n = number of members and y = number of joints, then for a perfect frame, n = ?
If n = number of members and y = number of joints, then for a perfect frame, n = ?
If three forces acting in different planes can be represented by a triangle, these will be in
If three forces acting in different planes can be represented by a triangle, these will be in
The overturning of a vehicle on a level circular path can be avoided if the velocity of vehicle is __________ √(gra/h)
The overturning of a vehicle on a level circular path can be avoided if the velocity of vehicle is __________ √(gra/h)
Pick up wrong statement about friction force for dry surfaces. Friction force is
Pick up wrong statement about friction force for dry surfaces. Friction force is
Which of the following statement is correct?
Which of the following statement is correct?
The force induced in the string BC due to the load 'W' as shown in the below figure is
The force induced in the string BC due to the load 'W' as shown in the below figure is
When a body of mass moment of inertia 'I' (about a given axis) is rotated about that axis with an angular velocity to, then the kinetic energy of rotation is
When a body of mass moment of inertia 'I' (about a given axis) is rotated about that axis with an angular velocity to, then the kinetic energy of rotation is
Joule is the unit of
Joule is the unit of
Non-coplanar non-concurrent forces are those forces which
Non-coplanar non-concurrent forces are those forces which
The range of a projectile is maximum, when the angle of projection is
The range of a projectile is maximum, when the angle of projection is
The center of gravity of a semi-circle lies at a distance of __________ from its base measured along the vertical radius.
The center of gravity of a semi-circle lies at a distance of __________ from its base measured along the vertical radius.
The three forces of 100 N, 200 N and 300 N have their lines of action parallel to each other but act in the opposite directions. These forces are known as
The three forces of 100 N, 200 N and 300 N have their lines of action parallel to each other but act in the opposite directions. These forces are known as
According to Newton's first law of motion,
According to Newton's first law of motion,
Which is the correct statement about law of polygon of forces?
Which is the correct statement about law of polygon of forces?
A circular hole of 50 mm diameter is cut out from a circular disc of 100 mm diameter as shown in the below figure. The center of gravity of the section will lie
A circular hole of 50 mm diameter is cut out from a circular disc of 100 mm diameter as shown in the below figure. The center of gravity of the section will lie
The centre of percussion is below the centre of gravity of the body and is at a distance equal to
The centre of percussion is below the centre of gravity of the body and is at a distance equal to
The time of flight (t) of a projectile on a horizontal plane is given by
The time of flight (t) of a projectile on a horizontal plane is given by
A force is completely defined when we specify
A force is completely defined when we specify
A single force and a couple acting in the same plane upon a rigid body
A single force and a couple acting in the same plane upon a rigid body
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 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
Non-coplanar concurrent forces are those forces which
Non-coplanar concurrent forces are those forces which
The unit of work or energy in S.I. units is
The unit of work or energy in S.I. units is
The forces, which meet at one point, but their lines of action do not lie in a plane, are called
The forces, which meet at one point, but their lines of action do not lie in a plane, are called
If the masses of both the bodies, as shown in the below figure, are doubled, then the acceleration in the string will be
If the masses of both the bodies, as shown in the below figure, are doubled, then the acceleration in the string will be
A pendulum which executes one beat per second is known as
A pendulum which executes one beat per second is known as
If three forces acting in one plane upon a rigid body, keep it in equilibrium, then they must either
If three forces acting in one plane upon a rigid body, keep it in equilibrium, then they must either
The moment of inertia of a thin disc of mass ‘m’ and radius ‘r’, about an axis through its center of gravity and perpendicular to the plane of the disc is
The moment of inertia of a thin disc of mass ‘m’ and radius ‘r’, about an axis through its center of gravity and perpendicular to the plane of the disc is
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.)
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.)
In determining stresses in frames by methods of sections, the frame is divided into two parts by an imaginary section drawn in such a way as not to cut more than
In determining stresses in frames by methods of sections, the frame is divided into two parts by an imaginary section drawn in such a way as not to cut more than
The efficiency of a screw jack is maximum, when (where α = Helix angle, and φ = Angle of friction.)
The efficiency of a screw jack is maximum, when (where α = Helix angle, and φ = Angle of friction.)
The minimum force required to slide a body of weight 'W' on a rough horizontal plane is
The minimum force required to slide a body of weight 'W' on a rough horizontal plane is
If a number of forces are acting at a point, their resultant will be inclined at an angle 'θ' with the horizontal, such that
If a number of forces are acting at a point, their resultant will be inclined at an angle 'θ' with the horizontal, such that
A screw jack used for lifting the loads is
A screw jack used for lifting the loads is
D' Alembert's principle is used for
D' Alembert's principle is used for
Which of the following statement is correct?
Which of the following statement is correct?
When trying to turn a key into a lock, following is applied
When trying to turn a key into a lock, following is applied
Which of the following is not the unit of power?
Which of the following is not the unit of power?
Two non-collinear parallel equal forces acting in opposite direction
Two non-collinear parallel equal forces acting in opposite direction
Two balls of equal mass and of perfectly elastic material are lying on the floor. One of the balls with velocity ‘v’ is made to strike the second ball. Both the balls after impact will move with a velocity
Two balls of equal mass and of perfectly elastic material are lying on the floor. One of the balls with velocity ‘v’ is made to strike the second ball. Both the balls after impact will move with a velocity
The maximum velocity of a particle moving with simple harmonic motion is
The maximum velocity of a particle moving with simple harmonic motion is
Which of the following is a vector quantity?
Which of the following is a vector quantity?
Tangent of angle of friction is equal to
Tangent of angle of friction is equal to
Which of the following do not have identical dimensions?
Which of the following do not have identical dimensions?
In a screw jack, the effort required to lower the load is __________ the effort required to raise the same load.
In a screw jack, the effort required to lower the load is __________ the effort required to raise the same load.
On a ladder resting on smooth ground and leaning against vertical wall, the force of friction will be
On a ladder resting on smooth ground and leaning against vertical wall, the force of friction will be
Which of the following is not a vector quantity?
Which of the following is not a vector quantity?
If the number of pulleys in a system is equal to its velocity ratio, then it is a __________ system of pulleys.
If the number of pulleys in a system is equal to its velocity ratio, then it is a __________ system of pulleys.
Which of the following is not a scalar quantity?
Which of the following is not a scalar quantity?
If ‘P’ is the force acting on the body, ‘m’ is the mass of the body and ‘a’ is the acceleration of the body, then according to Newton's second law of motion,
If ‘P’ is the force acting on the body, ‘m’ is the mass of the body and ‘a’ is the acceleration of the body, then according to Newton's second law of motion,
A particle inside a hollow sphere of radius r, having coefficient of friction µ can rest up to height of
A particle inside a hollow sphere of radius r, having coefficient of friction µ can rest up to height of
The power developed by a body acted upon by a torque 'T' Newton meter (N - m) and revolving at ω radian/s is given by
The power developed by a body acted upon by a torque 'T' Newton meter (N - m) and revolving at ω radian/s is given by
Moment of inertia of a circular section about its diameter (d) is
Moment of inertia of a circular section about its diameter (d) is
The range of projectile on a downward inclined plane is ________ the range on upward inclined plane for the same velocity of projection and angle of projection.
The range of projectile on a downward inclined plane is ________ the range on upward inclined plane for the same velocity of projection and angle of projection.
