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Theory of Machine

Theory of Machine
When a ship travels in a sea, which of the effect is more dangerous

Pitching
All of these
Steering
Rolling

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Theory of Machine
The Bifilar suspension method is used to determine

Centripetal acceleration
Position of balancing weights
Natural frequency of vibration
Moment of inertia

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Theory of Machine
Which of the following is an example of a higher pair?

Belt and rope drive
Toothed gearing
All of the listed here
Ball and roller bearing

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Theory of Machine
The pressure angle of a cam depends upon

Angle of ascent
Offset between center lines of cam and follower
Lift of follower
All of these

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Theory of Machine
The rotating shafts tend to vibrate violently at whirling speeds because

Bearing centre line coincides with the axis
The system is unbalanced
Resonance is caused due to the heavy mass of the rotor
The shafts are rotating at very high speeds

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Theory of Machine
The height of a Watt's governor is

Directly proportional to speed
Inversely proportional to (speed)²
Directly proportional to (speed)²
Inversely proportional to speed

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