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GATE ME: Theory of Machines & Vibrations Champion Quiz 2

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Question 1

The number of degrees of freedom of the planetary gear train shown in the figure is
$Description: D:\GradeStack Courses\GATE Tests (Sent by Ravi)\GATE ME 18-Mar\GATE-ME-2015-P2_files\image018.jpg$

Question 2

Tooth interference in an external involute spur gear pair can be reduced by

Question 3

Which is correct in case of flywheel?

Question 4

The mechanism used in a shaping machine is

Question 5

Consider the following statements :
Cam followers are generally classified according to
1) The nature of its motion
2) The nature of its surface in contact with the cam
3) The speed of the cam
Which of these statements are correct?

Question 6

Which among the following is not a rotating cam-translating follower?

Question 7

A compound gear train with gears P, Q, R and S has number of teeth 20, 40, 15 and 20, respectively. Gears Q and R are mounted on the same shaft as shown the figure below. The diameter of the gear Q is twice that of the gear R. If the module of the gear R is 2 mm, the center distance in mm between gears P and S is

Question 8

A pair of spur gears with module 5 mm and a center distance of 450 mm is used for a speed reduction of 5:1. The number of teeth on pinion is ______

Question 9

The torque (in N-m) exerted on the crank shaft of a two stroke engine can be described as T = 10000 + 1000sin2θ - 1200 cos 2θ, where θ is the crank angle as measured from inner dead center Position. Assuming the resisting torque to be constant, the Power (in kW) developed by the engine at 100 rpm is ________

Question 10

Consider a flywheel whose mass M is distributed almost equally between a heavy, ring-like rim of radius R and a concentric disk-like feature of radius R/2. Other parts of the flywheel, such as spokes, etc. have negligible mass. The best approximation for $Description: D:\GradeStack Courses\GATE Tests (Sent by Ravi)\GATE-ME-2014-Set-2_files\image132.png$ , if the moment of inertia of the flywheel about its axis of rotation is expressed as $Description: D:\GradeStack Courses\GATE Tests (Sent by Ravi)\GATE-ME-2014-Set-2_files\image133.png$ . is_____________

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ESE & GATE ME Theory of Machines & Vibrations

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