-
A
Power Plant Equipment
-
B
Personal Protective Equipment — safety gear worn to protect against hazards
-
C
Portable Power Engine
-
D
Precision Production Engineering
Why this is the answer
PPE = Personal Protective Equipment — any worn equipment designed to protect the worker from physical hazards. In a workshop context: safety glasses/goggles (eye protection from flying debris); hearing protection (ear muffs/plugs for loud tools); respirators or dust masks (for dust or fumes); hard hat (falling objects); gloves (hand protection); steel-toed boots (foot protection). Selecting correct PPE for each task is a fundamental shop safety responsibility.
Source: ASVAB SI, Workshop Safety