Question

Balancing of a rigid rotor can be achieved by appropriately balancing masses in:

• A. Single plane
• B. Two planes
• C. Three planes
• D. Four planes

Hint:

Balancing a rotor is crucial to prevent vibrations that could damage bearings and other components in a machine. Using two planes for balancing is standard in many industrial applications, especially for high-speed rotating machinery.

Answer 1

The Correct Option is B

For balancing a rigid rotor, balancing masses in two planes is the most common method. When there are two planes, balancing ensures that the rotor remains in equilibrium, preventing excessive vibration and wear. Balancing in a single plane is not enough for a rigid rotor that rotates about multiple axes. Similarly, balancing in three or more planes is not generally required for most applications. Therefore, the correct option is two planes.