Question 1

In a revolving rotor, the centrifugal force remains balanced as long as the centre of the mass of the rotor lies ___________

Accepted Answer

The centrifugal force remains balanced in a revolving rotor as long as the center of the mass of the rotor lies on the axis of the shaft. This ensures that the mass is evenly distributed around the axis, preventing any imbalance during rotation.

Question 2

Often an unbalance of forces is produced in rotary or reciprocating machinery due to the ______

Accepted Answer

Inertia forces are the forces that are produced due to the tendency of an object to resist any change in its state of motion. In rotary or reciprocating machinery, the inertia forces are produced due to the change in the direction of motion of the rotating or reciprocating parts. These forces can cause an unbalance of forces in the machinery, which can lead to vibration and other problems.

Question 3

The mass used to balance the mass defect is known as ______

Accepted Answer

The mass used to balance the mass defect is known as the balancing mass.

Quiz 3: Vibration Analysis and Torsional Vibration in Shaft Systems

In a revolving rotor, the centrifugal force remains balanced as long as the centre of the mass of the rotor lies ___________

Often an unbalance of forces is produced in rotary or reciprocating machinery due to the ______

The mass used to balance the mass defect is known as ______