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Theory of Machine

Theory of Machine
The radial distance of a tooth from the pitch circle to the bottom of the tooth is called

Clearance
Working depth
Dedendum
Addendum

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Theory of Machine
The total number of instantaneous centers for a mechanism consisting of n links are

n/2
n
n - 1
n(n - 1)/2

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Theory of Machine
In a Hartnell governor, the lift of the sleeve is given by (where r₁ and r₂ = Max. and min. radii of rotation, x = Length of ball arm of the lever, and y = Length of sleeve arm of the lever)

(r₁ - r₂) (y/x)
(r₁ + r₂) (x/y)
(r₁ - r₂) (x/y)
(r₁ + r₂) (y/x)

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Theory of Machine
Which of the following is an inversion of a single slider crank chain?

Rotary internal combustion engine
Pendulum pump
Oscillating cylinder engine
All of these

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Theory of Machine
An engine operates between temperatures of 900°Kandr2 and another engine between T2 and 400°K For both to do equal work, value of T2 will be

600°K
650°K
625°K
700°K

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Theory of Machine
In a multiple V-belt drive, if one of the belts is broken, then we should replace

The broken belt and the belts on either side of it
The broken belt only
All the belts
None of these

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