Theory of Machine
When the radius of rotation of balls __________ as the equilibrium speed increases, the governor is said to be unstable.

Remains constant
None of these
Increases
Decreases

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Theory of Machine
A body in motion will be subjected to Coriolis acceleration when that body is

In plane translation with variable velocity
In plane rotation with variable velocity
Restrained to rotate while sliding over another body
In plane motion which is a resultant of plane translation and rotation

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Theory of Machine
In a band and block brake, the ratio of tensions on tight side and slack side of the band is (where μ = Coefficient of friction between the blocks and the drum, θ = Semi-angle of each block subtending at the center of drum, and n = Number of blocks)

T₁/T₂ = [(1 - μ tanθ)/(1 + μ tanθ)]n
T₁/T₂ = (μ θ)n
T₁/T₂ = μ. θ. n
T₁/T₂ = [(1 + μ tanθ)/(1 - μ tanθ)]n

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