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Theory of Machine

Theory of Machine
At the nodal point in a shaft, the amplitude for torsional vibration will be

Infinity
Maximum
Zero
Minimum

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Theory of Machine
The condition for correct steering of a Davis steering gear is (where α = Angle of inclination of the links to the vertical)

cotα = c/2b
sinα = b/c
cosα = c/b
tanα = c/2b

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Theory of Machine
The cam follower generally used in aircraft engines is

Knife edge follower
Spherical faced follower
Roller follower
Flat faced follower

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

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Theory of Machine
In an open pair, the two elements of a pair

Are kept in contact by the action of external forces, when in motion
Have a line or point contact when in motion
Have a surface contact when in motion
Are not held together mechanically

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Theory of Machine
The Hooke's joint consists of:

One fork
Four forks
Two forks
Three forks

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