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Theory of Machine

Theory of Machine
Cross head and guides form a

Sliding pair
Turning pair
Lower pair
Higher pair

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Theory of Machine
The Klein's diagram is used when

Crank has nonuniform angular velocity
Crank has nonuniform angular acceleration
Crank has uniform angular velocity
Crank has uniform angular acceleration

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Theory of Machine
A fixed gear having 200 teeth is in mesh with another gear having 50 teeth. The two gears are connected by an arm. The number of turns made by the smaller gear for one revolution of arm about the centre of bigger gear is

5
3
2
4

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Theory of Machine
In a Hartnell governor, the stiffness of the spring is given by (where S1 and S2 = Spring forces exerted on the sleeve at max. and min. radii of rotation, and h = Compression of the spring)

(S₁ - S₂) / 2h
(S₁ - S₂) / h
(S₁ + S₂) / h
(S₁ + S₂) / 2h

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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

I₂/G²
G.I₂
G².I₂
I₂/G

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Theory of Machine
When the pitching of a ship is upward, the effect of gyroscopic couple acting on it will be

To move the ship towards starboard
To raise the bow and lower the stern
To raise the stern and lower the bow
To move the ship towards port side

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MORE MCQ ON Theory of Machine

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