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Theory of Machine

Theory of Machine
In a coupling rod of a locomotive, each of the four pairs is a ________ pair.

Rolling
Sliding
Screw
Turning

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Theory of Machine
The rotor of a ship rotates in clockwise direction when viewed from stern and the ship takes a left turn. The effect of gyroscopic couple acting on it will be

To lower the bow and stern
To raise the bow and lower the stern
To raise the bow and stern
To raise the stern and lower the bow

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Theory of Machine
In a locomotive, the resultant unbalanced force due to the two cylinders along the line of stroke, is known as

Swaying couple
None of these
Hammer blow
Tractive force

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Theory of Machine
In the below figure, PC is the connecting rod and OC is the crank making an angle θ with the line of stroke PO and rotates with uniform angular velocity at ω rad/s. The Klien's acceleration diagram for determining the acceleration of the piston P is shown by quadrilateral CQNO. The acceleration of the piston P with respect to the crank-pin C is given by

ω² × NO
ω² × CO
ω² × CN
ω² × QN

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Theory of Machine
A completely constrained motion can be transmitted with.

3 links with pin joints
2 links with pin joints
1 link with pin joints
4 links with pin joints

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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)

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

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