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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

cosφ
sinφ
cosecφ
secφ

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Theory of Machine
The method of direct and reverse cranks is used in engines for

The control of speed fluctuations
Kinematic analysis
Balancing of forces and couples
Vibration analysis

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Theory of Machine
For S.H.M. cam, the acceleration of the follower at the ends of the stroke and aimed stroke respectively, is

Minimum and maximum
Zero and minimum
Zero and maximum
Maximum and zero

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Theory of Machine
TJIE horse power transmitted by a belt is dependent upon

Tension on slack side of belt
Radius of pulley
All of these
Tension on tight side of belt

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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
625°K
700°K
650°K

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Theory of Machine
The radial distance from the top of a tooth to the bottom of a tooth in a meshing gear, is called

Clearance
Dedendum
Working depth
Addendum

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