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ESE ME 2018 Achiever Study Plan: Theory of Machines Quiz 1

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Question 1

Which one of the following statements is correct?
Seismic transducer working in the displacement mode should have

Question 2

A mass m is suspended through a spring of stiffness from a beam of bending stiffness as shown in the figure. If the mass is slightly displaced and left, then the frequency of oscillations in rad/s may be given as:

Question 3

Consider the following profiles of mating gear teeth
1) Involute profiles
2) Cycloidal profiles
3) Conjugate profiles
Which of these satisfy the law of gearing?

Question 4

In a crank and slotted lever quick return motion mechanism, the distance between the fixed centres is 200 mm. The lengths of the driving crank and the slotted bar are 100 mm and 500 mm, respectively. The length of the cutting stroke is

Question 5

Universal or Hook’s joint is used to connect two non-coaxial rotating shafts transmitting power and intersecting at small angle transmitting power. For a constant rotating speed of the driving shaft, the maximum fluctuation of instantaneous speed of the driven shaft:

Question 6

In circular arc cam with a flat faced reciprocating follower, the contact between the follower and the nose of cam is only maintained if:

Question 7

In a locomotive, the ratio of the connecting rod length to the crank radius is kept very large in order to_____.

Question 8

The number of instantaneous centres of rotation in a slider-crank quick return mechanism is

Question 9

The arc of contact and the path of contact are, respectively 27 mm and 25.4 mm, in a pair of involute spur gears. The pressure angle would be

Question 10

What is the direction of the Coriolis component of acceleration in a slotted lever- crank mechanism?

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ESE & GATE ME Theory of Machines & Vibrations

Mar 19ESE & GATE ME