Q.1
In order to completely specify angular displacement by a vector, it must fix
Q.2
The force, by which the body is attracted, towards the center of the earth, is called
Q.3
In actual machines, mechanical advantage is _________ velocity ratio.
Q.4
Whenever a force acts on a body and the body undergoes a displacement, then
Q.5
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
Q.6
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
Q.7
If rain is falling in the opposite direction of the movement of a pedestrian, he has to hold his umbrella
Q.8
According to Newton's first law of motion,
Q.9
A pendulum which executes one beat per second is known as
Q.10
D' Alembert's principle is used for
Q.11
Centre of gravity of a solid cone lies on the axis at the height
Q.12
In the lever of third order, load ‘W’, effort ‘P’ and fulcrum ‘F’ are oriented as follows
Q.13
The ideal angle of banking provided on the curves on roads depends upon
Q.14
The ratio of limiting friction and normal reaction is known as
Q.15
Least force required to draw a body up the inclined plane is W sin (plane inclination + friction angle) applied in the direction
Q.16
Non-coplanar concurrent forces are those forces which
Q.17
Coplanar concurrent forces are those forces which
Q.18
Non-coplanar non-concurrent forces are those forces which
Q.19
During elastic impact, the relative velocity of the two bodies after impact is __________ the relative velocity of the two bodies before impact.
Q.20
For a self locking machine, the efficiency must be
Q.21
Coefficient of friction depends upon
Q.22
Coefficient of friction is the
Q.23
Pick up the incorrect statement from the following:
Q.24
The bodies which rebound after impact are called
Q.25
The maximum mechanical advantage of a lifting machine is
Q.26
According to law of triangle of forces
Q.27
A smooth cylinder lying on its convex surface remains in __________ equilibrium.
Q.28
Center of percussion is
Q.29
The linear velocity of a body rotating at ω rad/s along a circular path of radius r is given by
Q.30
A particle moves along a straight line such that distance (x) traversed in 't' seconds is given by x = t² (t - 4), the acceleration of the particle will be given by the equation
Q.31
When two elastic bodies collide with each other,
Q.32
A number of forces acting at a point will be in equilibrium, if
Q.33
The moment of inertia of a square of side (a) about an axis through its center of gravity is
Q.34
The velocity of a body on reaching the ground from a height h, is
Q.35
An ideal machine is one whose efficiency is
Q.36
A heavy ladder resting on floor and against a vertical wall may not be in equilibrium, if
Q.37
In the equation of virtual work, following force is neglected
Q.38
The equivalent length of a simple pendulum which gives the same frequency as compound pendulum is
Q.39
When the lift is moving upwards with some acceleration, the pressure exerted by a man is __________ to its acceleration.
Q.40
The force required to move the body up the plane will be minimum if it makes an angle with the inclined plane __________ the angle of friction.
Q.41
Angle of friction is the
Q.42
If tension in the cable supporting a lift moving downwards is half the tension when it is moving upwards, the acceleration of the lift is
Q.43
Moment of inertia of a rectangular section having width (b) and depth (d) about an axis passing through its C.G. and parallel to the depth (d), is
Q.44
Moment of inertia of a rectangular section having width (b) and depth (d) about an axis passing through its C.G. and parallel to the width (b), is
Q.45
A smooth cylinder lying on a __________ is in neutral equilibrium.
Q.46
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.47
A couple produces
Q.48
A force acting on a body may
Q.49
A force while acting on a body may
Q.50
Mass moment of inertia of a thin rod about its one end is ___________ the mass moment of inertia of the same rod about its mid-point
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