10 free CHST practice questions in the real exam format, covering the official content areas, with an explanation for every answer.
CHST Practice Test 8Tutor mode
Question 1 of 10
Hazard and Risk Identification and Control
An electrician must splice new fixtures into an existing 277-V lighting circuit during a tenant renovation. The foreman suggests doing the work hot to avoid turning off lights in occupied areas. Which control should the technician require FIRST?