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Theory of Machine

Theory of Machine
A slider crank chain consists of following numbers of turning and sliding pairs

2, 2
4, 0
3, 1
1, 3

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Theory of Machine
The pair is known as a higher pair, when the relative motion between the elements of a pair is

Partly turning and partly sliding
Turning only
Rolling only
Sliding only

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Theory of Machine
In considering friction of a V-thread, the virtual coefficient of friction (μ₁) is given by

μ₁ = μ cos β
μ₁ = μ/sin β
μ₁ = μ/cos β
μ₁ = μ sin β

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Theory of Machine
The equation of motion for a vibrating system with viscous damping is (d²x/dt²) + (c/m).(dx/dt) + (s/m).x = 0, if the roots of the equation are __________ then the system will be under damped.

None of these
Equal
Real
Complex conjugate

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Theory of Machine
According to Kennedy's theorem, if three bodies move relatively to each other, their instantaneous centers will lie on a

Triangle
Parabolic curve
Rectangle
Straight line

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Theory of Machine
In a locomotive, the maximum magnitude of the unbalanced force along the perpendicular to the line of stroke, is known as

Swaying couple
None of these
Hammer blow
Tractive force

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