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Theory of Machine

Theory of Machine
The periodic time is given by (where ω = Angular velocity of the particle in rad/s)

π/ω
ω × 2π
ω/2π
2π/ω

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Theory of Machine
The Grubler's criterion for determining the degrees of freedom (n) of a mechanism having plane motion is (where l = Number of links, and j = Number of binary joints)

n = 3(l - 1) - 2j
n = 4(l - 1) - 3j
n = (l -1) - j
n = 2(l - 1) - 2j

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Theory of Machine
The method of obtaining different mechanisms by fixing in turn different links in a kinematic chain, is known as

Compound mechanism
Machine
Inversion
Structure

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Theory of Machine
Which of the following is an example of a higher pair?

All of the listed here
Ball and roller bearing
Toothed gearing
Belt and rope drive

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Theory of Machine
Which of the following is used to control the speed variations of the engine caused by the fluctuations of the engine turning moment?

Governor
D-slide valve
Flywheel
Meyer's expansion valve

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Theory of Machine
A Hartnell governor is a

Spring loaded governor
Dead weight governor
Inertia governor
Pendulum type governor

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