Safety Procedures & PPE Flashcards
7 cards from real AM 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 & PPE flashcards as text
When working in a confined space on an aircraft, what is the minimum requirement before entry?
Answer: Atmospheric testing for oxygen, flammable, and toxic gases
Confined space entry requires atmospheric testing to confirm oxygen levels (19.5–23.5%) and absence of hazardous gases before anyone enters.
Which class of fire extinguisher is appropriate for an electrical fire in an avionics bay?
Answer: Class C
Class C extinguishers use non-conductive agents and are rated for fires involving energized electrical equipment.
What does the term 'lockout/tagout' (LOTO) specifically prevent during aircraft maintenance?
Answer: Unexpected energization or release of stored energy
LOTO procedures isolate energy sources—electrical, hydraulic, pneumatic, or mechanical—to prevent accidental startup or energy release while personnel work on equipment.
A technician must sand composite panels for an extended period. Which respiratory protection is most appropriate?
Answer: A half-face air-purifying respirator with P100 particulate filters
Composite dust contains hazardous fibers; a half-face APR with P100 filters provides the highest particulate filtration needed for prolonged exposure.
What is the primary purpose of grounding an aircraft before refueling?
Answer: To equalize static charge between the aircraft and fuel vehicle, preventing spark ignition
Bonding and grounding dissipate static electricity accumulated during fueling, eliminating ignition sources near flammable vapors.
Eye protection marked 'Z87.1' meets which standard?
Answer: ANSI/ISEA standard for occupational and educational eye and face protection
ANSI/ISEA Z87.1 is the U.S. standard specifying impact, optical, and coverage requirements for safety eyewear in occupational settings.
During a high-pressure hydraulic leak test, what is the safest way to check for leaks?
Answer: Use a piece of cardboard or approved detector fluid, never bare skin
High-pressure hydraulic fluid injected through skin (injection injury) can cause tissue necrosis; cardboard or detector fluid identifies leaks without contact risk.