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Theory of Machine

Theory of Machine
The lead screw of a lathe with nut forms a

Turning pair
Sliding pair
Screw pair
Rolling pair

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

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Theory of Machine
The motion between a pair when limited to a definite direction, irrespective of the direction of force applied, is known as

Successfully constrained motion
None of these
Completely constrained motion
Incompletely constrained motion

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Theory of Machine
Angular acceleration of a link can be determined by dividing the

Resultant acceleration with length of link
Centripetal component of acceleration with length of link
All of these
Tangential component of acceleration with length of link

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Theory of Machine
The minimum force required to slide a body of weight W on a rough horizontal plane is

W cosecθ
W sinθ
W cosθ
W tanθ

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Theory of Machine
There are six gears A, B, C, D, E and F in a compound train. The numbers of teeth in the gears are 20, 60, 30, 80, 25 and 75 respectively. The ratio of angular speeds of the driven (F) to the driver (A) of the drive is

1/8
1/24
4/15
12

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