Related Questions
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4
When a rigid body is suspended vertically, and it oscillates with a small amplitude under the action of the force of gravity, the body is known as
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4
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
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4
The unit of moment of inertia of an area is
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4
Pick up wrong statement about friction force for dry surfaces. Friction force is
A. Proportional to normal load between the surfaces
B. Dependent on the materials of contact surface
C. Proportional to velocity of sliding
D. Independent of the area of contact surfaces
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4
One kg force is equal to
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4
Which of the following is a scalar quantity?
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4
The velocity ratio for the first system of pulleys is (where n is the number of pulleys.)
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4
The forces, whose lines of action are parallel to each other and act in the same directions, are known as
A. Coplanar concurrent forces
B. Coplanar non-concurrent forces
D. Unlike parallel forces
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4
The moment of inertia of a thin spherical shell of mass m and radius r, about its diameter is
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4
The centre of gravity a T-section 100 mm × 150 mm × 50 mm from its bottom is
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4
Which of the following is not a scalar quantity?
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The centre of percussion is below the centre of gravity of the body and is at a distance equal to
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4
In order to double the period of simple pendulum, the length of the string should be
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4
The resultant of two equal forces P making an angle θ, is given by
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4
The algebraic sum of moments of the forces forming couple about any point in their plane is
A. Equal to the moment of the couple
C. Both of above are correct
D. Both of above are wrong
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4
A smooth cylinder lying on its convex surface remains in __________ equilibrium.
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4
Which of the following is not the unit of work, energy and heat?
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If the masses of both the bodies, as shown in the below figure, are doubled, then the acceleration in the string will be
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4
The forces which do not meet at one point and their lines of action do not lie on the same plane are known as
A. Coplanar concurrent forces
B. Coplanar non-concurrent forces
C. Non-coplanar concurrent forces
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4
The velocity ratio of a first system of pulleys with 4 pulleys is
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4
A redundant frame is also called __________ frame.
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4
Which of the following is not a vector quantity?
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4
If a rigid body is in equilibrium under the action of three forces, then
A. These forces are equal
B. The lines of action of these forces meet in a point
C. The lines of action of these forces are parallel
D. Both (B) and (C) above
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4
The centre of gravity of a semi-circle lies at a distance of __________ from its base measured along the vertical radius.
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When a person, on a bicycle, drives round a curve, he has to lean __________ to maintain equilibrium.
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4
Pick up the incorrect statement from the following:
A. The C.G. of a circle is at its centre
B. The C.G. of a triangle is at the intersection of its medians
C. The C.G. of a rectangle is at the intersection of its diagonals
D. The C.G. of a semicircle is at a distance of r/2 from the centre
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4
The velocity ratio in case of an inclined plane inclined at angle θ to the horizontal and weight being pulled up the inclined plane by vertical effort is
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4
The bellow figure shows the two equal forces at right angles acting at a point. The value of force R acting along their bisector and in opposite direction is
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4
Non-coplanar concurrent forces are those forces which
A. Meet at one point, but their lines of action do not lie on the same plane
B. Do not meet at one point and their lines of action do not lie on the same plane
C. Meet at one point and their lines of action also lie on the same plane
D. Do not meet at one point, but their lines of action lie on the same plane
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4
During elastic impact, the relative velocity of the two bodies after impact is __________ the relative velocity of the two bodies before impact.