Dynamics Of Machinery Important Questions – DM Imp Qusts

Dynamics Of Machinery Important Questions Pdf file – DM Imp Qusts

Please find the attached pdf file of Dynamics Of Machinery Important Questions Bank – DM Imp Qusts

Link – DM Question Bank

UNIT-I

1. What is the gyroscopic effect on a ship when it turns towardsleft and the propeller rotates counterclockwise when viewedfrom stern.
2. What is the effect of gyroscopic couple on the stability of atwo wheeler taking a turn?
3. Explain the gyroscopic effect on an aero plane.

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UNIT – II

1. Explain the terms friction axis, friction couple and frictioncircle.
2. Derive expression for the mean torque transmitted for a bodymoving down an inclined plane.
3. Distinguish between brakes and dynamometers.

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UNIT – III

1. Define the terms coefficient of fluctuation of energy andcoefficient of fluctuation of speed.
2. What is a fly wheel? What is its function?
3. Describe the turning moment diagram for a single cylinderdouble acting steam engine.

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UNIT – IV

1. What is the necessity of balancing for rotors of high speedengines?
2. What is meant by static and dynamic unbalance inmachinery?
3. What is primary and secondary balancing in reciprocatingengines?

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UNIT – V

1. Describe Dunkerley’s method to find the natural frequencyof a shaft carrying several loads.
2. Distinguish between longitudinal, transverse and torsionalvibrations.
3. What is critical or whirling speed of shaft?

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