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Safety Procedures & Regulations Flashcards

7 cards from real CARO practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

Read the first 7 Safety Procedures & Regulations flashcards as text

  1. Under OSHA's Process Safety Management standard (29 CFR 1910.119), at what quantity of anhydrous ammonia does a refrigeration system become covered?

    Answer: 10,000 pounds

    OSHA PSM applies to processes containing 10,000 pounds or more of anhydrous ammonia.

  2. What is the OSHA permissible exposure limit (PEL) for ammonia as an 8-hour time-weighted average?

    Answer: 50 ppm

    OSHA sets the ammonia PEL at 50 ppm as an 8-hour TWA.

  3. What ammonia concentration does NIOSH list as Immediately Dangerous to Life or Health (IDLH)?

    Answer: 300 ppm

    NIOSH lists 300 ppm as the IDLH concentration for ammonia.

  4. Under PSM, how often must a Process Hazard Analysis (PHA) be updated and revalidated?

    Answer: Every 5 years

    PSM requires PHAs to be updated and revalidated at least every five years.

  5. Before an operator works on a compressor motor, which OSHA standard governs isolating its energy sources?

    Answer: 29 CFR 1910.147 Control of Hazardous Energy

    Lockout/tagout is governed by 29 CFR 1910.147, the control of hazardous energy standard.

  6. Ammonia is classified by ASHRAE Standard 34 as which safety group?

    Answer: B2L

    Ammonia (R-717) is B2L: higher toxicity and lower flammability with a low burning velocity.

  7. An emergency eyewash station meeting ANSI Z358.1 must deliver flushing fluid for at least how long?

    Answer: 15 minutes

    ANSI Z358.1 requires eyewash units to provide a continuous flush for at least 15 minutes.