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Theory of Machine

Theory of Machine
The number of links and instantaneous centers in a reciprocating engine mechanism are

5, 4
4, 6
4, 5
4, 4

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Theory of Machine
The primary unbalanced force is maximum _________ in one revolution of the crank.

Four times
Sixteen times
Eight times
Twice

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Theory of Machine
In a locomotive, the maximum magnitude of the unbalanced force along the perpendicular to the line of stroke, is known as

None of these
Swaying couple
Hammer blow
Tractive force

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Theory of Machine
A torsional system with discs of moment of inertia I₁ and I₂ as shown in the below figure, is gear driven such that the ratio of speed of shaft B to shaft A is 'G'. Neglecting the inertia of gears, the equivalent inertia of disc on shaft B at the speed of shaft A is equal to

G.I₂
G².I₂
I₂/G²
I₂/G

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Theory of Machine
When two links are connected by a pin joint, their instantaneous center lies

At the center of circle
At the pin joint
On their point of contact
At the center of curvature

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Theory of Machine
A circular bar moving in a round hole is an example of

Incompletely constrained motion
Partially constrained motion
Completely constrained motion
Successfully constrained motion

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