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Theory of Machine

Theory of Machine
The amplitude of vibration is always __________ the radius of the circle.

Equal to
None of these
Less than
Greater than

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Theory of Machine
Ackermann steering gear consists of

Turning pairs
Sliding pairs
Rolling pairs
Higher pairs

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Theory of Machine
When the primary direct crank of a reciprocating engine makes an angle of 'θ' with the line of stroke, then the secondary direct crank will make an angle of _________ with the line of stroke.

θ
2θ
4θ
θ/2

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Theory of Machine
In vibration isolation system, if ω/ωn < 2, then for all values of damping factor, the transmissibility will be (where ω = Angular speed of the system, ωn = Natural frequency of vibration of the system)

Zero
Greater than unity
Less than unity
Equal to unity

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Theory of Machine
A mechanism _________ for transmitting or transforming motion.

Unpredictable
Can be used
Can not be used
None of these

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Theory of Machine
A disturbing mass m₁ attached to the rotating shaft may be balanced by a single mass m₂ attached in the same plane of rotation as that of m₁, such that (where r₁ and r₂ are the radii of rotation of m₁ and m₂ respectively)

None of these
m₁ r₁ = m₂ r₂
m₁ m₂ = r₁ r₂
m₁ r₂ = m₂ r₁

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