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Theory of Machine

Theory of Machine
Davis steering gear consists of

Sliding pairs
Higher pairs
Turning pairs
Rolling pairs

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Theory of Machine
The partial balancing of reciprocating parts in locomotives produces

Variation in tractive force along the line of stroke
Hammer blow
All of these
Swaying couple

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Theory of Machine
In a pantograph, all the pairs are

Self-closed pairs
Turning pairs
Sliding pairs
Spherical pairs

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Theory of Machine
The height of a Watt's governor (in meters) is equal to (where N = Speed of the arm and ball about the spindle axis)

895/N²
8950/N²
8.95/N²
89.5/N²

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Theory of Machine
The main disadvantage of the sliding pair is that it is

Bulky
Both (A) and (B) above
Difficult to manufacture
Wears rapidly

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Theory of Machine
Which of the following is an open pair?

Cam and follower
Lead screw and nut
Journal bearing
Ball and socket joint

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