Q.1
Which of the following is a vector quantity
Q.2
Which of the following is not a vector quantity
Q.3
Which of the following is not the unit of energy
Q.4
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
Q.5
If a rigid body is in equilibrium under the action of three forces, then
Q.6
If n = number of members andy = number of joints, then for a perfect frame, n =
Q.7
Angle of friction is the
Q.8
Which of the following is not the unit of power ?
Q.9
If a number of forces act simultaneously on a particle, it is possible
Q.10
A body moves, from rest with a constant acceleration of 5 m per sec. The distance covered in 5 sec is most nearly
Q.11
Effect of a force on a body depends upon
Q.12
Kinetic friction is the
Q.13
The C.G. of a solid hemisphere lies on the central radius 3r
Q.14
D Alembert’s principle is used for
Q.15
Tangent of angle of friction is equal to
Q.16
Frictional force encountered after commencement of motion is called
Q.17
The resultant of the following three couples 20 kg force, 0.5 m arm, + ve sense 30 kg force, 1 m arm, – ve sense 40 kg force, 0.25 m arm, + ve sense having arm of 0.5 m will be
Q.18
Center of percussion is
Q.19
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
Q.20
If three forces acting in different planes can be represented by a triangle, these will be in
Q.21
If three forces acting in one plane upon a rigid body, keep it in equilibrium, then they must either
Q.22
Limiting force of friction is the
Q.23
The unit of force in S.I. units is
Q.24
The unit of work or energy in S.I. units is
Q.25
The unit of power in S.I. units is
Q.26
The weight of a body is due to
Q.27
The product of either force of couple with the arm of the couple is called
Q.28
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
Q.29
According to principle of transmissibility of forces, the effect of a force upon a body is
Q.30
A force is completely defined when we specify
0 h : 0 m : 1 s