Q. In a band and block brake, the ratio of tensions on tight side and slack side of the band is (where μ = Coefficient of friction between the blocks and the drum, θ = Semi-angle of each block subtending at the centre of drum, and n = Number of blocks)

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Q. When there is a reduction in amplitude over every cycle of vibration, then the body is said to have

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Q. In full depth involute system, the smallest number of teeth in a pinion which meshes with rack without interference is

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Q. A system in dynamic balance implies that

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Q. The example of completely constrained motion is a

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Q. In involute gears, the pressure angle is

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Q. A shaft carrying three rotors will have

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Q. Which of the following is used to control the speed variations of the engine caused by the fluctuations of the engine turning moment?

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Q. The ratio of driving tensions for rope drive is same as that of V-belt drive.

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Q. A Hartnell governor is a

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Q. Frequency of vibrations is usually expressed in

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Q. The relation between number of pairs (p) forming a kinematic chain and the number of links (l) is

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Q. The ratio of the number of teeth to the pitch circle diameter in millimetres, is called

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Q. The ratio of the pitch circle diameter in millimetres to the number of teeth, is called circular pitch.

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Q. The rotating shafts tend to vibrate violently at whirling speeds because

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Q. Which of the following is an inversion of a double slider crank chain?

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Q. The unbalanced force due to revolving masses

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Q. Which of the following statement is correct for gears ?

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Q. In a screw jack, the effort required to lift the load W is given by (where α = Helix angle, and φ = Angle of friction)

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Q. In order to facilitate starting of locomotive in any position, the cranks of a locomotive with two cylinders, are placed at

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