Q. The coefficient of fluctuation of energy is the ratio of maximum energy to the minimum energy.

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Q. When the nature of contact between the elements of a pair is such that it can only slide relative to the other, the pair is known as a

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Q. The velocity of a particle moving with simple harmonic motion, at any instant is given by (where ω = Displacement of the particle from mean position)

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Q. The velocity of piston in a reciprocating steam engine is given by (where ω = Angular velocity of crank, r = Radius of crank pin circle, θ = Angle turned by crank from inner dead centre, and n = Ratio of length of connecting rod to the radius of crank)

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Q. Which of the following is a higher pair?

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Q. When the belt is stationary, it is subjected to some tension known as initial tension. The value of this tension is equal to the

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Q. In a force-closed pair, the two elements of a pair are not held together mechanically.

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Q. Maximum fluctuation of energy in a flywheel is equal to (where I = Mass moment of inertia of the flywheel, E = Maximum fluctuation of energy, CS = Coefficient of fluctuation of speed, and ω = Mean angular speed = )

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Q. The coriolis component of acceleration acts

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Q. The primary unbalanced force is maximum __________ in one revolution of the crank.

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Q. The instantaneous centres which vary with the configuration of mechanism, are called

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Q. The displacement of the reciprocating roller follower, when it has contact with the straight flanks of the tangent cam, is given by (where r1 = Minimum radius of the cam, r2 = Radius of the roller follower, and θ = Angle turned by the cam from the beginning of the follower displacement)

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Q. In considering friction of a V-thread, the virtual coefficient of friction (μ1) is given by

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Q. The wear of bearing is proportional to velocity and pressure.

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Q. The maximum or minimum value of the swaying couple is

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Q. For an involute gear, the ratio of base circle radius and pitch circle radius is equal to

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Q. A chain consisting of four links and four joints is called a kinematic chain.

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Q. Which of the following is an open pair?

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Q. The frictional torque transmitted in a flat pivot bearing with assumption of uniform pressure is __________ as compared to uniform wear.

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Q. In a shaper mechanism, the coriolis component of acceleration does not exist.

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