Two heavy rotating masses are connected by shafts of lengths l₁, l₂ and l₃ and the corresponding diameters are d₁, d₂ and d₃. This system is reduced to a torsionally equivalent system having uniform diameter d = d₁ of the shaft. The equivalent length of the shaft is

Theory of Machine
Two heavy rotating masses are connected by shafts of lengths l₁, l₂ and l₃ and the corresponding diameters are d₁, d₂ and d₃. This system is reduced to a torsionally equivalent system having uniform diameter d = d₁ of the shaft. The equivalent length of the shaft is

l = l₁ + l₂.(d₁/d₂)⁴ + l₃.(d₁/d₃)⁴

l₁ + l₂ + l₃

l = l₁ + l₂.(d₁/d₂)³ + l₂.(d₁/d₃)³

(l₁ + l₂ + l₃)/3

l = l₁ + l₂.(d₁/d₂)⁴ + l₃.(d₁/d₃)⁴

l₁ + l₂ + l₃

l = l₁ + l₂.(d₁/d₂)³ + l₂.(d₁/d₃)³

(l₁ + l₂ + l₃)/3

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Theory of Machine
The effort of a Porter governor is equal to (where c = Percentage increase in speed, m = Mass of ball, and M = Mass on the sleeve)

c (m + M) g

c/(m + M) g

c/(m - M) g

c (m - M) g

c (m + M) g

c/(m + M) g

c/(m - M) g

c (m - M) g

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Theory of Machine
A rotary internal combustion engine has __________ cylinders.

Six

Seven

Five

Four

Six

Seven

Five

Four

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Theory of Machine
The natural frequency of free longitudinal vibrations is equal to (where m = Mass of the body, s = Stiffness of the body, and δ = Static deflection of the body)

1/2π × √(s/m)

0.4985/√δ

1/2π × √(g/δ)

Any one of the listed here

1/2π × √(s/m)

0.4985/√δ

1/2π × √(g/δ)

Any one of the listed here

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Theory of Machine
In a mechanism, usually one link is fixed. If the fixed link is changed in a kinematic chain, then relative motion of other links

Will not occur

Will change

Could change or remain unaltered depending on which link is fixed

Will remain same

Will not occur

Will change

Could change or remain unaltered depending on which link is fixed

Will remain same

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Theory of Machine
When the sleeve of a Porter governor moves downwards, the governor speed

Remain unaffected

First increases and then decreases

Decreases

Increases

Remain unaffected

First increases and then decreases

Decreases

Increases

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Theory of Machine

Theory of Machine Two heavy rotating masses are connected by shafts of lengths l₁, l₂ and l₃ and the corresponding diameters are d₁, d₂ and d₃. This system is reduced to a torsionally equivalent system having uniform diameter d = d₁ of the shaft. The equivalent length of the shaft is

Theory of Machine The effort of a Porter governor is equal to (where c = Percentage increase in speed, m = Mass of ball, and M = Mass on the sleeve)

Theory of Machine A rotary internal combustion engine has __________ cylinders.

Theory of Machine The natural frequency of free longitudinal vibrations is equal to (where m = Mass of the body, s = Stiffness of the body, and δ = Static deflection of the body)

Theory of Machine In a mechanism, usually one link is fixed. If the fixed link is changed in a kinematic chain, then relative motion of other links

Theory of Machine When the sleeve of a Porter governor moves downwards, the governor speed

Theory of Machine
Two heavy rotating masses are connected by shafts of lengths l₁, l₂ and l₃ and the corresponding diameters are d₁, d₂ and d₃. This system is reduced to a torsionally equivalent system having uniform diameter d = d₁ of the shaft. The equivalent length of the shaft is

Theory of Machine
The effort of a Porter governor is equal to (where c = Percentage increase in speed, m = Mass of ball, and M = Mass on the sleeve)

Theory of Machine
A rotary internal combustion engine has __________ cylinders.

Theory of Machine
The natural frequency of free longitudinal vibrations is equal to (where m = Mass of the body, s = Stiffness of the body, and δ = Static deflection of the body)

Theory of Machine
In a mechanism, usually one link is fixed. If the fixed link is changed in a kinematic chain, then relative motion of other links

Theory of Machine
When the sleeve of a Porter governor moves downwards, the governor speed