Q.1
Pick up the incorrect statement from the following. In a simple harmonic motion
Q.2
Pick up the incorrect statement from the following. In case of suspension bridge due to rise in temperature,
Q.3
When a body in equilibrium undergoes an infinitely small displacement, work imagined to be done, is known as
Q.4
A ball which is thrown upwards, returns to the ground describing a parabolic path during its flight
Q.5
If two forces P and Q (P > Q) act on the same straight line but in opposite direction, their resultant, is
Q.6
At a given instant ship ‘A’ is travelling at 6 km/h due east and ship ‘B’ is travelling at 8 km/h due north. The velocity of ‘B’ relative to ‘A’ is
Q.7
If the angle of projection is double the angle of inclination (α) of the plane on which particle is projected, the ratio of times of flight up the inclined plane and down the inclined plane, will be
Q.8
One end of an elastic string of natural length / and modulus X is kept fixed while to the other end is attached a particle of mass m which is hanging freely under gravity. The particle is pulled down vertically through a distance x, held at rest and then released. The motion is
Q.9
Impulse can be obtained from a
Q.10
The angle of friction is:
Q.11
M.I. of a thin ring (external diameter D, internal diameter d) about an axis perpendicular to the plane of the ring, is
Q.12
A cylinder will slip on an inclined plane of inclination 0 if the coefficient of static friction between plane and cylinder is
Q.13
The following factor affects the orbit of a satellite up to an altitude of 720 km from the earth's surface
Q.14
The torque produced by a force depends on
(i) The magnitude of the force
(ii) The direction of the force
(iii) The point of application of the force relative to origin
Q.15
If the kinetic energy and potential energy of a simple harmonic oscillator of amplitude A are both equal to half the total energy, then the displacement is equal to
Q.16
Rate of change of angular momentum is equal to
Q.17
A rod AB carries three loads of 30 N, 70 N and 100 N at distances of 20 mm, 90 mm and 150 mm respectively from A. Neglecting the weight of the rod, the point at which the rod will balance is
Q.18
The member forces in a statically in determinate truss
Q.19
If ‘v’ and ‘ω’ are linear and angular velocities, the centripetal acceleration of a moving body along the circular path of radius ‘r’, will be
Q.20
The torque produced by a force depends on
i. the magnitude of the force
ii. the direction of the force
iii. the point of application of the force relative to origin
The correct answer is
Q.21
Select the correct statement
Q.22
The characteristic of a couple is:
Q.23
A system of coplanar forces acting on a rigid body can be reduced to
Q.24
To attain the synchronous orbit, the launch of a satellite, is done from a place
Q.25
The rotational velocity of a satellite is increased by 450 m per second if its launch is done from equator
Q.26
The resultant of two forces P and Q is R. If Q is doubled, the new resultant is perpendicular to P. Then,
Q.27
Power developed by a torque, is
Q.28
For a non-concurrent force system to be in equilibrium
Q.29
A quantity whose dimensions are M2L2T3 could be the product of
Q.30
The phenomenon of collision of two elastic bodies takes place because bodies
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