A boom angle indicator does not display which parameter?

A boom angle indicator does not display which parameter?

• A. Boom deflection
• B. Boom height
• C. Boom angle
• D. Boom length

Answer: (A)

Boom angle indicators are designed to show the angle of the boom relative to the ground, which helps the operator read the configuration for safe operation and correct load calculations. This instrument may also show related physical dimensions like how high the tip is or how extended the boom is, since those values feed into capacity charts. However, it does not measure or display how much the boom deflects or bends under load. Deflection is a structural response that depends on forces, load, and dynamics and typically requires a separate deflection or load-moment monitoring system rather than the basic angle readout. So the parameter not displayed by a boom angle indicator is the boom deflection.

Boom angle indicators are designed to show the angle of the boom relative to the ground, which helps the operator read the configuration for safe operation and correct load calculations. This instrument may also show related physical dimensions like how high the tip is or how extended the boom is, since those values feed into capacity charts. However, it does not measure or display how much the boom deflects or bends under load. Deflection is a structural response that depends on forces, load, and dynamics and typically requires a separate deflection or load-moment monitoring system rather than the basic angle readout. So the parameter not displayed by a boom angle indicator is the boom deflection.