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Theory of Machine

Theory of Machine
In Meyer's expansion valve, the main valve is driven by an eccentric having an angle of advance from

10°-15°
15°-25°
30°-40°
25°-30°

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Theory of Machine
The brake commonly used in railway trains is

Band and block brake
Shoe brake
Internal expanding brake
Band brake

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Theory of Machine
The essential condition of placing the two masses, so that the system becomes dynamically equivalent, is (where l₁ and l₂ = Distance of two masses from the centre of gravity of the body, and kG = Radius of gyration of the body)

l₂ = kG
l₁l₂ = kG
l₁l₂ = kG²
l₁ = kG

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Theory of Machine
Klein's construction gives a graphic construction for

Velocity polygon
Acceleration polygon
Four bar chain mechanism
Slider-crank mechanism

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Theory of Machine
Which of the following is an inversion of a single slider crank chain?

Rotary internal combustion engine
All of these
Pendulum pump
Oscillating cylinder engine

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Theory of Machine
The Coriolis component of acceleration leads the sliding velocity by

135°
180°
45°
90°

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