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Theory of Machine

Theory of Machine
A mechanism is an assemblage of

Four or more than four links
Two links
All of these
Three links

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

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Theory of Machine
When the axes of the first and last wheels are coaxial, then the train is known as

Epicyclic gear train
Reverted gear train
Compound train of wheels
Simple train of wheels

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Theory of Machine
Which one of the following is an exact straight line mechanism using lower pairs?

Peaucellier’s mechanism
Robert’s mechanism
Grasshopper mechanism
Watt’s mechanism

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Theory of Machine
The following is the inversion of slider crank chain mechanism

Hand pump
All of these
Oscillating cylinder engine
Whitworth quick return mechanism

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Theory of Machine
To obviate axial thrust, following gear drive is used

Single helical gear in which one of the teeth of helix angle a is more
Mutter gears
Double helical gears having identical teeth
Double helical gears having opposite teeth

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