What are the normal working limits for KM-37 when using air?

The normal working limits for the KM-37 when using air are defined as the parameters within which the equipment is designed to operate safely and effectively. In this case, the correct answer indicates a normal working limit of 190 feet and a maximum limit of 285 feet.

This means that, during operations, divers or equipment utilizing the KM-37 can safely work at depths of up to 190 feet without risk of exceeding operational capabilities. However, the maximum operational depth of 285 feet provides a safety margin for critical or emergency circumstances, acknowledging the stresses that increased depth can place on both the diver and the equipment.

These established limits are based on physiological considerations, the physical characteristics of the diving equipment, and industry safety standards, ensuring that divers maintain proper safety protocols while conducting underwater operations.