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Theory of Machine

Theory of Machine
If the opposite links of a four bar linkage are equal, the links will always form a

Parallelogram
Rectangle
Triangle
Pentagon

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Theory of Machine
The mechanism in which two are turning pairs and two are sliding pairs, is called a

Elliptical trammel
All of these
Scotch yoke mechanism
Double slider crank chain

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Theory of Machine
A torsional system with discs of moment of inertia I₁ and I₂ as shown in the below figure, is gear driven such that the ratio of speed of shaft B to shaft A is 'G'. Neglecting the inertia of gears, the equivalent inertia of disc on shaft B at the speed of shaft A is equal to

I₂/G
I₂/G²
G².I₂
G.I₂

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Theory of Machine
If there are L number of links in a mechanism, then number of possible inversions is equal to

L
L + 1
L + 2
L - 1

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Theory of Machine
In a locomotive, the resultant unbalanced force due to the two cylinders along the line of stroke, is known as

Hammer blow
None of these
Swaying couple
Tractive force

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Theory of Machine
A point B on a rigid link AB moves with respect to A with angular velocity ω rad/s. The radial component of the acceleration of B with respect to A, is (where vBA = Linear velocity of B with respect to A)

vBA /AB
vBA × AB
v²BA /AB
v²BA

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