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Theory of Machine

Theory of Machine
An automobile steering gear is an example of

Higher pair
Sliding pair
Rolling pair
Lower pair

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Theory of Machine
The fundamental equation for correct steering is (where φ and α = Angle through which the axis of the outer wheel and inner wheel turns respectively, c = Distance between the pivots of the front axles, and d = Wheel base)

cotφ - cotα = c/b
tanφ + cotα = b/c
sinφ + sinα = b/c
cosφ - sinα = c/b

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Theory of Machine
Rectilinear motion of piston is converted into rotary by

Gudgeon pin
Slider crank
Cross head
Connecting rod

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

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

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Theory of Machine
Kinematic pairs are those which have two elements that

Are held together
Permit relative motion
Have line contact
Have surface contact

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Theory of Machine
Two systems shall be dynamically equivalent when

G. of two coincides
M.I. of two about an axis through e.g. is equal
The mass of two are same
All of these

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