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GATE Prev Year : Theory of Machines Test-8
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Question 1
Which of the following statements is INCORRECT?
Question 2
In a flywheel, Cf represents coefficient of speed fluctuation, then which among the following expression will show ratio of ωmax / ωmin:
Question 3
Maximum fluctuation of kinetic energy in an engine has been calculated to be 2600 J. Assuming that the engine runs at an average speed of 200 rpm, the polar mass moment of inertia (in kg.
) of a fly wheel to keep the speed fluctuation within ±0.5% of the average speed is _________
) of a fly wheel to keep the speed fluctuation within ±0.5% of the average speed is _________ Question 4
A spur pinion of pitch diameter 50 mm rotates at 200 rad/s and transmits 3 kW power. The pressure angle of the tooth of the pinion is 20 °. Assuming that only one pair of the teeth is in contact, the total force (in newton) exerted by a tooth of the pinion on the tooth on a mating gear is ________
Question 5
A uniform slender rod (8 in length and 3 kg mass) rotates in a vertical plane about a horizontal axis 1 m from its end as shown in the figure. The magnitude of the angular acceleration (in rad/s2) of the rod at the position shown is
Question 6
Consider a rotating disk cam and a translating roller follower with zero offset. Which one of the following pitch curves, parameterized by t, lying in the interval 0 to 2 π, is associated with the maximum translation of the follower during one full rotation of the cam rotating about the center at (x,y) = (0,0)?
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