Which of the following is the correct range for the governor brake's maximum lowering speed after adjustment?

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Multiple Choice

Which of the following is the correct range for the governor brake's maximum lowering speed after adjustment?

The key idea is that the governor brake controls how fast a load can be lowered, so after adjustment you set a maximum speed that keeps descent under control while still being practical. Not more than 180 feet per minute gives a descent rate of about 0.9 meters per second, which is slow enough to allow the operator to react to any snag, wind, or surge and to protect the rope, brake, and equipment from excessive stress. Setting a faster rate, like 240 feet per minute, could cause a sudden jerk, potential overloading of the brake, and increased risk to personnel. Slower rates, such as 60 or 120 feet per minute, are safer but unnecessarily conservative for typical operations. So the best maximum after adjustment is 180 feet per minute.

The key idea is that the governor brake controls how fast a load can be lowered, so after adjustment you set a maximum speed that keeps descent under control while still being practical. Not more than 180 feet per minute gives a descent rate of about 0.9 meters per second, which is slow enough to allow the operator to react to any snag, wind, or surge and to protect the rope, brake, and equipment from excessive stress. Setting a faster rate, like 240 feet per minute, could cause a sudden jerk, potential overloading of the brake, and increased risk to personnel. Slower rates, such as 60 or 120 feet per minute, are safer but unnecessarily conservative for typical operations. So the best maximum after adjustment is 180 feet per minute.

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