Q. A system of masses rotating in different parallel planes is in dynamic balance if the

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Q. The radial distance from the top of a tooth to the bottom of a tooth in a meshing gear, is called

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Q. A simple spring-mass vibrating system has a natural frequency of fn. If the spring stiffness is halved and the mass is doubled, then the natural frequency will become

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Q. The frictional torque transmitted in a truncated conical pivot bearing, considering uniform pressure, is

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Q. In a Hartnell governor, the stiffness of the spring is given by (where S1 and S2 = Spring forces exerted on the sleeve at max. and min. radii of rotation, and h = Compression of the spring)

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Q. The relation between the controlling force (Fc) and radius of rotation (r) for a stable spring controlled governor is

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Q. A rotary internal combustion engine has __________ cylinders.

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Q. The power transmitted by a belt is maximum when the maximum tension in the belt is __________ of centrifugal tension.

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Q. A slider moves at a velocity v on a link revolving at ω rad/s. The coriolis component of acceleration is

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Q. The effort of a Porter governor is equal to (where c = Percentage increase in speed, m = Mass of ball, and M = Mass on the sleeve)

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Q. In a reciprocating steam engine, which of the following forms a kinematic link?

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Q. The frictional torque transmitted in a truncated conical pivot bearing, considering uniform wear, is

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Q. A spring controlled governor is said to be isochronous when the controlling force

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Q. In a steam engine, one method of obtaining the earlier cut-off with a simple slide valve is by increasing the angle of advance of the eccentric while the throw of the eccentric, steam lap and exhaust lap are kept constant. This method will

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Q. The equation of motion for a vibrating system with viscous damping is , if the roots of the equation are complex conjugate, then the system will be critically damped.

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Q. The dedendum circle diameter is equal to (where φ = Pressure angle)

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Q. The ratio of the maximum displacement of the forced vibration to the deflection due to the static force, is known as

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Q. The tractive force is maximum or minimum when the angle of inclination of crank with the line of stroke (θ) is equal to

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Q. A point on a connecting link (excluding end points) of a double slider crank mechanism traces a

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Q. The coefficient of friction is the ratio of the limiting friction to the normal reaction between the two bodies.

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