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Theory of Machine

Theory of Machine
Module of a gear is

D/T
2T/D
T/D
2D/T

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Theory of Machine
When two pulleys of different diameters are connected by means of an open belt, the angle of contact at the ________ pulley must be taken into consideration.

Smaller OR Larger
Smaller
None of the listed here
Larger

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Theory of Machine
Efficiency of a screw jack is given by

tanα/tan (α +φ)
tanα/tan (α - φ)
tan (α + φ)/tanα
tan (α - φ)/tanα

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Theory of Machine
Elements of pairs held together mechanically is known as

Closed pair
Rolling pair
Mechanical pair
Open pair

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Theory of Machine
The size of cam depends upon

Pitch circle
Prime circle
Base circle
Pitch curve

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Theory of Machine
The equation of motion for a single degree of freedom system with viscous damping is 4(dx²/dt²) + 9(dx/dt) + 16x. The damping ratio of the system is

44082
44090
9/128
30195

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