10 free CHST practice questions in the real exam format, covering the official content areas, with an explanation for every answer.
CHST Practice Test 1Tutor mode
Question 1 of 10
Hazard and Risk Identification and Control
A pipefitter must braze a copper line inside a metal stud wall. On the other side of the drywall partition is a tenant storage room stacked with cardboard boxes. The work area on the pipefitter's side has been cleared and an extinguisher is in place. What additional precaution is required?