Section 300: Electrical Test No. 4
Practice test questions for the PA Mine Officials' Exam

Progress Indicator:
Question 1 of 15

1.  In no case shall the potential used in the trolley system be higher than __________.

  1. 480 volts
  2. 600 volts
  3. 1,000 volts
  4. 24 volts

See more about these products

See the BioPak 240R on the web  External Link Icon Download the BioPak 240R Brochure