Construction Health and Safety Technician (CHST) Practice Test

Disable ads (and more) with a membership for a one time $2.99 payment

Prepare effectively for the CHST Test. Explore multiple choice questions, each with hints and explanations. Ensure exam success!

Each practice test/flash card set has 50 randomly selected questions from a bank of over 500. You'll get a new set of questions each time!

Practice this question and more.

According to OSHA requirements, which outlets on construction sites must have ground-fault circuit interrupters?

120 volt, 10 amp
120 volt, 15- and 20 amp
240 volt, 15 amp
240 volt, 20 amp

The correct answer is: 120 volt, 15- and 20 amp

The requirement for ground-fault circuit interrupters (GFCIs) on construction sites is specifically aimed at enhancing worker safety by reducing the risk of electrical shock. According to OSHA regulations, all 120-volt, 15- and 20-amp outlets used on construction sites must be equipped with GFCIs. This specification is in place because these outlets are commonly used for power tools and other equipment that are often utilized in outdoor and potentially wet environments, where the risk of electrical hazards is greater. In particular, the 15- and 20-amp configurations are prevalent in residential and light commercial construction work, making them critical points of electrical use where GFCIs can effectively protect workers. Other voltage specifications listed, such as 240-volt outlets, do not have the same GFCI requirement under OSHA for construction settings, reflecting the focus on the most commonly used voltage levels in construction tasks. Therefore, the emphasis on 120-volt, 15- and 20-amp outlets underscores the necessity for using GFCIs to ensure safety in high-risk environments.