Theory-of-machines Questions Set 15:
The number of inversions for a slider crank mechanism is
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Bevel gears are equivalent to rolling
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Which of these is not a type of clutch?
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A mass of 2 kg is attached to the end of a spring with a stiffness of 900 N/m. What is the critical damping coefficient of this system?
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Which type of dynamometer has a pinion meshing with two gears?
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The partial balancing of reciprocating parts in locomotives produces:
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In a single plate clutch, the pressure is uniformly distributed. If the outer radius is 100 mm and the inner radius is 70 mm, what is the value of R?
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In a multi-plate clutch, the torque, T, is 180 N-m, the number of plates, n, is 3, the coefficient of friction, μ, is 0.4, and the radius of the clutch, R, is 0.15 m. Find the axial thrust (W).
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When the motion between a pair is limited to a definite direction irrespective of the direction of force applied, then the motion is called
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A shaft has an attached disc at the center of its length. The disc has its center of gravity located at a distance of 5 mm from the axis of the shaft. When the shaft is allowed to vibrate in its natural bow-shaped mode, it has a frequency of vibration of 20 rad/s. When the shaft is rotated at 300 rpm, what will be the radius (in mm) of the whirling motion?
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