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Theory of Machine

Theory of Machine
A rotary internal combustion engine has __________ cylinders.

Six
Four
Seven
Five

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Theory of Machine
A shaft carrying two rotors at its ends will have

No node
Two nodes
Three nodes
One node

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

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

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

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Theory of Machine
The velocity of any point in mechanism relative to any other point on the mechanism on velocity polygon is represented by the line

At 45° to line as per (A)
Joining the corresponding points
Not possible to determine with these data
Perpendicular to line as per (A)

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Theory of Machine
The magnitude of linear velocity of a point B on a link AB relative to point A is, (Where ω = Angular velocity of the link AB)

(ω × AB)²
ω × AB
ω² × AB
ω × (AB)²

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