An toànCâu 335 / 360
A worker will descend into a deep sewer manhole. What retrieval equipment does Cal/OSHA generally require to aid non-entry rescue?
a.A rope tied loosely around the waist
b.A full-body harness with a retrieval line connected to a mechanical device or tripod at the opening
c.A ladder only, with no harness
d.A cell phone in the worker's pocket
Giải thích
Under Title 8 §5157, each authorized entrant in a permit space must use a full-body harness with a retrieval line attached, and vertical spaces more than 5 feet deep generally require a mechanical retrieval device (such as a tripod and winch) at the entry. This lets the attendant pull the entrant out without entering. A waist rope alone can cause injury and does not allow controlled lifting.
Trích dẫn luật: Cal/OSHA Title 8 §5157Luyện miễn phí toàn bộ 360 câu hỏi — không cần đăng ký.
Câu hỏi liên quan cùng chủ đề
- During a permit-required confined space entry into a sewer, Cal/OSHA requires an attendant. What is the attendant's primary role?
- A plumber notices a rotten-egg smell while opening a sewer cleanout, then the smell fades. What toxic gas is this most likely, and why is the fading smell dangerous?
- The atmosphere in a sewer vault tests as oxygen-deficient. Before any worker enters, what is the required corrective action?
- Cal/OSHA sets a Permissible Exposure Limit (PEL) for hydrogen sulfide, a gas plumbers meet in sewers. Approximately what is the 8-hour PEL for H2S under Title 8?
- A supervisor wants to skip the full permit process for a sewer entry by claiming the space is 'reclassified' as non-permit. Under Cal/OSHA, when is such reclassification allowed?
- The most reliable protection against backflow contaminating drinking water is a physical separation. What is an 'air gap' as defined for cross-connection control?
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