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Theory of Machine

Theory of Machine
For an involute gear, the ratio of base circle radius and pitch circle radius is equal to

sinφ
cosecφ
cosφ
secφ

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Theory of Machine
Typewriter constitutes

Inversion
Structure
Mechanism
Machine

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Theory of Machine
The maximum or minimum value of the swaying couple is

± c.m.ω².r
± 2a (1 - c) m.ω².r
± a (1 - c) m.ω².r
± (a/√2) (1 - c) m.ω².r

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Theory of Machine
The Coriolis component of acceleration leads the sliding velocity by

135°
90°
45°
180°

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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)²
ω × AB
ω² × AB

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Theory of Machine
The pitching of a ship produces forces on the bearings which act __________ to the motion of the ship.

Horizontally and parallel
Vertically and parallel
Vertically and perpendicular
Horizontally and perpendicular

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