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Theory of Machine

Theory of Machine
Davis steering gear consists of

Rolling pairs
Turning pairs
Sliding pairs
Higher pairs

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Theory of Machine
The velocity of a body moving with simple harmonic motion is __________ at the mean position.

Maximum
Minimum
None of these
Zero

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Theory of Machine
The working depth of a gear is the radial distance from the

Addendum circle to the clearance circle
Pitch circle to the bottom of a tooth
Pitch circle to the top of a tooth
Top of a tooth to the bottom of a tooth

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Theory of Machine
In a four-bar chain it is required to give an oscillatory motion to the follower for a continuous rotation of the crank. For the lengths of 50 mm of crank and 70 mm of the follower, determine theoretical maximum length of coupler. The minimum length of the coupler will be

45 mm
Slightly more than 45 mm
Slightly less than 45 mm
95 mm

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Theory of Machine
A body having moment of inertia o:m2 is rotating at 210 RPM and r with another body at rest having I 40 kg m2. The resultant speed after ing will be

100 RPM
90 RPM
80 RPM
data are insufficient

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Theory of Machine
With usual notations for different parameters involved, the maximum fluctuations of energy for a flywheel is given by

2ECS²
2E²CS
2ECS
EC S/2

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