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Theory of Machine

Theory of Machine
With single Hooke's joint it is possible to connect two shafts, the axes of which have an angular misalignment up to

20°
10°
30°
40°

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Theory of Machine
Which of the following is a pendulum type governor?

None of these
Hartnell governor
Watt governor
Porter governor

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Theory of Machine
A Hartnell governor has its controlling force (Fc) given by Fc = ar + b, where r is the radius of rotation and a and b are constants. The governor becomes isochronous when

a is +ve and b = 0
a is +ve and b is -ve
a = 0 and b is +ve
a is +ve and b is also +ve

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Theory of Machine
A single degree of freedom system is given by, m × (d²x/dt²) + c × (dx/dt) + sx = F.cosω.t with usual notations. It represents

Free vibration without damping
Free vibration with damping
Forced vibration without damping
Forced vibration with damping

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Theory of Machine
The equation of motion for a vibrating system with viscous damping is (d²x/dt²) + (c/m).(dx/dt) + (s/m).x = 0, if the roots of the equation are __________ then the system will be under damped.

Real
None of these
Complex conjugate
Equal

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Theory of Machine
Scotch yoke mechanism is used to generate

Logarithms
Square roots
Sine functions
Inversions

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