Theory of Machine
Inertia force acts

None of the listed here
Along the direction of acceleration force
Perpendicular to the acceleration force
Opposite to the direction of acceleration force

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Theory of Machine
In a cone pulley, if the sum of radii of the pulleys on the driving and driven shafts is constant, then

Both open belt drive and crossed belt drive is recommended
The drive is recommended depending upon the torque transmitted
Open belt drive is recommended
Crossed belt drive is recommended

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Theory of Machine
The velocity of piston in a reciprocating steam engine is given by (where ω = Angular velocity of crank, r = Radius of crank pin circle, θ = Angle turned by crank from inner dead center, and n = Ratio of length of connecting rod to the radius of crank)

ωr [cos θ + (cos 2θ/n)]
ω²r [cos θ + (cos 2θ/n)]
ωr [sin θ + (sin 2θ/n)]
ω²r [sin θ + (sin 2θ/n)]

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Theory of Machine
When the belt is stationary, it is subjected to some tension known as initial tension. The value of this tension is equal to the

Tension in the slack side of the belt
Average tension of the tight side and slack side of the belt
Sum of the tensions on the tight side and slack side of the belt
Tension in the tight side of the belt

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