Related Questions
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The ideal angle of banking provided on the curves on roads depends upon
B. (Velocity)2 of the vehicle
C. Nature of the road surface
D. Coefficient of friction between the road and vehicle contact point
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4
Which of the following are vector quantities?
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In a screw jack, the effort required to lower the load is __________ the effort required to raise the same load.
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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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Which of the following is the locus of a point that moves in such a manner that its distance from a fixed point is equal to its distance from a fixed line multiplied by a constant greater than one
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4
The coefficient of restitution for inelastic bodies is
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4
A ladder is resting on a rough ground and leaning against a smooth vertical wall. The force of friction will act
A. Downward at its upper end
B. Upward at its upper end
D. Perpendicular to the wall at its upper end
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4
In a framed structure, as shown in the below figure, the force in the member BC is
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If three forces acting in different planes can be represented by a triangle, these will be in
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The resultant of two forces P and Q (such that P > Q) acting along the same straight line, but in opposite direction, is given by
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In a framed structure, as shown in the below figure, the force in the member AB is __________ the force in member AC.
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Which of the following is a vector quantity?
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Efficiency of a screw jack is given by (where α = Helix angle, and φ = Angle of friction.)
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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
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The horizontal range of a projectile (R) is given by
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Which of the following is not the unit of energy?
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If three forces acting in one plane upon a rigid body, keep it in equilibrium, then they must either
C. At least two of them must meet
D. All the above are correct
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A spherical body is symmetrical about its perpendicular axis. According to Routh's rule, the moment of inertia of a body about an axis passing through its centre of gravity is (where, M = Mass of the body, and S = Sum of the squares of the two semi-axes.)
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4
The maximum efficiency of a lifting machine is
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4
The time of flight of a projectile on downward inclined plane depends upon
B. Angle of inclination of the plane
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The C.G. of a right circular solid cone of height h lies at the following distance from the base
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Moment of inertia of a triangular section of base (b) and height (h) about an axis through its base, is
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The coefficient of friction depends on
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According to law of triangle of forces
A. Three forces acting at a point will be in equilibrium
B. Three forces acting at a point can be represented by a triangle, each side being proportional to force
C. If three forces acting upon a particle are represented in magnitude and direction by the sides of a triangle, taken in order, they will be in equilibrium
D. If three forces acting at a point are in equilibrium, each force is proportional to the sine of the angle between the other two
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Which of the following is a scalar quantity?
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The coefficient of friction depends upon
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The moment of inertia of a square of side (a) about an axis through its centre of gravity is
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4
Two coplanar couples having equal and opposite moments
B. Produce a couple and an unbalanced force
D. Cannot balance each other
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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.
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The centre of gravity a T-section 100 mm × 150 mm × 50 mm from its bottom is