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Theory of Machine

Theory of Machine
Davis steering gear consists of

Turning pairs
Rolling pairs
Sliding pairs
Higher pairs

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

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Theory of Machine
In a shaper mechanism, the Coriolis component of acceleration will

Exist
Not exist
Depend on position of crank
None of these

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Theory of Machine
In vibration isolation system, if ω/ωn > 1, then the phase difference between the transmitted force and the disturbing force is

180°
0°
270°
90°

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Theory of Machine
A Hartnell governor is a

Dead weight governor
Spring loaded governor
Inertia governor
Pendulum type governor

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Theory of Machine
When two pulleys are connected by means of a cross belt drive, then both the pulleys will rotate in _________ directions.

None of these
Perpendicular
Opposite
Same

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