STS Practice Test 1

10 free STS practice questions in the real exam format, covering the official content areas, with an explanation for every answer.

STS Practice Test 1Tutor mode

Question 1 of 10

Life Critical Activities

A maintenance crew must raise a scissor lift beside a 13.8-kV overhead distribution line in a warehouse yard. No one on the crew is a qualified electrical worker, and the line cannot be de-energized. What is the MINIMUM distance the crew must keep between the lift, any conductive object they handle and the line?