Coefficient of friction is the
Coefficient of friction is the
A semi-circular disc rests on a horizontal surface with its top flat surface horizontal and circular portion touching down. The coefficient of friction between semi-cricular disc and horizontal surface is i. 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 semi-circular disc rests on a horizontal surface with its top flat surface horizontal and circular portion touching down. The coefficient of friction between semi-cricular disc and horizontal surface is i. 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
Kinetic friction is the
Kinetic friction is the
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
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
D Alembert’s principle is used for
D Alembert’s principle is used for
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
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 center of gravity of a triangle lies at the point of
The center of gravity of a triangle lies at the point of
Angle of friction is the
Angle of friction is the
A body of weight W on inclined plane of a being pulled up by a horizontal force P will be on the point of motion up the plane when P is equal to
A body of weight W on inclined plane of a being pulled up by a horizontal force P will be on the point of motion up the plane when P is equal to
According to principle of moments
According to principle of moments
The M.I. of hollow circular section about a central axis perpendicular to section as compared to its M.I. about horizontal axis is
The M.I. of hollow circular section about a central axis perpendicular to section as compared to its M.I. about horizontal axis is
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
According to Lami's theorem
According to Lami's theorem
The co-efficient of friction depends upon
The co-efficient of friction depends upon
When trying to turn a key into a lock, following is applied
When trying to turn a key into a lock, following is applied
Center of gravity of a solid cone lies on the axis at the height
Center of gravity of a solid cone lies on the axis at the height
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
If n = number of members andy = number of joints, then for a perfect frame, n =
If n = number of members andy = number of joints, then for a perfect frame, n =
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
Which of the following is not the unit of distance ?
Which of the following is not the unit of distance ?
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
Which of the following is not a vector quantity
Which of the following is not a vector quantity
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
Two non-collinear parallel equal forces acting in opposite direction
Two non-collinear parallel equal forces acting in opposite direction
A force is completely defined when we specify
A force is completely defined when we specify
Which one of the following statements is not correct
Which one of the following statements is not correct
The centre of percussion of a solid cylinder of radius r resting on a horizontal plane will be
The centre of percussion of a solid cylinder of radius r resting on a horizontal plane will be
Which of the following is the example of lever of first order?
Which of the following is the example of lever of first order?
The center of percussion of the homogeneous rod of length L suspended at the top will be
The center of percussion of the homogeneous rod of length L suspended at the top will be
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)
Effect of a force on a body depends upon
Effect of a force on a body depends upon
A cable with a uniformly distributed load per horizontal metre run will take the following shape
A cable with a uniformly distributed load per horizontal metre run will take the following shape
If a suspended body is struck at the centre of percussion, then the pressure on die axis passing through the point of suspension will be
If a suspended body is struck at the centre of percussion, then the pressure on die axis passing through the point of suspension will be
Which of the following is a vector quantity
Which of the following is a vector quantity
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
In the equation of virtual work, following force is neglected
In the equation of virtual work, following force is neglected
Which is the correct statement about law of polygon of forces ?
Which is the correct statement about law of polygon of forces ?
The coefficient of friction depends on
The coefficient of friction depends on
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 center 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 center of circular plate
Which of the following is not the unit of power ?
Which of the following is not the unit of power ?
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
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 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
Which of the following do not have identical dimensions?
Which of the following do not have identical dimensions?
The C.G. of a right circular solid cone of height h lies at the following distance from the base
The C.G. of a right circular solid cone of height h lies at the following distance from the base
A number of forces acting at a point will be in equilibrium if
A number of forces acting at a point will be in equilibrium if
A heavy ladder resting on floor and against a vertical wall may not be in equilibrium, if
A heavy ladder resting on floor and against a vertical wall may not be in equilibrium, if
A heavy string attached at two ends at same horizontal level and when central dip is very small approaches the following curve
A heavy string attached at two ends at same horizontal level and when central dip is very small approaches the following curve
Tangent of angle of friction is equal to
Tangent of angle of friction is equal to
Which of the following is not the unit of pressure ?
Which of the following is not the unit of pressure ?
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 ?
Forces are called concurrent when their lines of action meet in
Forces are called concurrent when their lines of action meet in
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
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 possible loading in various members of framed structures are
The possible loading in various members of framed structures are
In ideal machines
In ideal machines
Which of the following is not the unit of energy
Which of the following is not the unit of energy
In actual machines
In actual machines
The center of gravity of a uniform lamina lies at
The center of gravity of a uniform lamina lies at
The algebraic sum of the resolved parts of a number of forces in a given direction is equal to the resolved part of their resultant in the same direction. This is as per the principle of
The algebraic sum of the resolved parts of a number of forces in a given direction is equal to the resolved part of their resultant in the same direction. This is as per the principle of
A force acting on a body may
A force acting on a body may
Limiting force of friction is the
Limiting force of friction is the
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 effort required to lift a load W on a screw jack with helix angle a and angle of friction
Answer & Solution
Answer: Option A
57.
In actual machines
Answer & Solution
Answer: Option C
58.
A heavy ladder resting on floor and against a vertical wall may not be in equilibrium, if
Answer & Solution
Answer: Option C
59.
The C.G. of a right circular solid cone of height h lies at the following distance from the base
Answer & Solution
Answer: Option D
60.
According to principle of moments
Answer & Solution
Answer: Option B
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The effort required to lift a load W on a screw jack with helix angle a and angle of friction
Answer & Solution
Answer: Option A
57.
In actual machines
Answer & Solution
Answer: Option C
58.
A heavy ladder resting on floor and against a vertical wall may not be in equilibrium, if
Answer & Solution
Answer: Option C
59.
The C.G. of a right circular solid cone of height h lies at the following distance from the base
Answer & Solution
Answer: Option D
60.
According to principle of moments
Answer & Solution
Answer: Option B
Read More Section(Strength Of Materials)
Each Section contains maximum 70 questions. To get more questions visit other sections.
A particle inside a hollow sphere of radius r, having coefficient of friction -rr can rest upto height of
A particle inside a hollow sphere of radius r, having coefficient of friction -rr can rest upto height of
According to principle of transmissibility of forces, the effect of a force upon a body is
According to principle of transmissibility of forces, the effect of a force upon a body is
Dynamic friction as compared to static friction is
Dynamic friction as compared to static friction 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
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
Which of the following is not a scalar quantity
Which of the following is not a scalar quantity
