leadrebel - Smart Answers. Smarter Community. Logo

Questions in engineering

📝 Answered - At a minimum, how long should a fire watch remain in place after work is done to ensure no fire begins? A. 15 minutes B. 30 minutes C. 45 minutes D. 60 minutes

📝 Answered - A RTK repeater should be used to extend the range of the RTK radio's signal. A. True B. False

📝 Answered - An electric device delivers a current of [tex]$15.0 A$[/tex] for 30 seconds. How many electrons flow through it?

📝 Answered - To avoid the risk of an arc igniting gases or vapors, where must an arcing device be installed? A. All Exterior Locations B. All Ceiling Locations C. Special Enclosure D. All Interior Locations

📝 Answered - An enclosure that houses conduit, boxes, and fittings in an electrical system is called a A. electrical service B. occupational safety and health administration (OSHA) C. on-the-job learning (OJL) D. rough-in E. trim-out F. raceway system G. substation

📝 Answered - Interruption of a three-phase rectifier can only be accomplished by: A. Connecting the current interrupter across the rectifier's fine taps B. Interrupting the AC voltage as it comes out of the rectifier's transformer C. Interrupting the DC output of the rectifier D. Connecting the current interrupter in parallel with the rectifier's shunt

📝 Answered - How often should the air quality be monitored in an excavation site? A. Once a day B. Once a week C. Once a month D. Continuously

📝 Answered - An enclosure that includes transformers, circuit breakers, buses, and other components involved in the transmission and distribution of electricity is known as a A. raceway system B. on-the-job learning (OJL) C. trim-out D. rough-in E. electrical service F. substation G. occupational safety and health administration (OSHA)

📝 Answered - One who has demonstrated the skills and knowledge related to the construction and operation of the electrical equipment and installations and has received safety training to identify and avoid the hazards involved is known as a: A. Polychlorinated biphenyls (PCBs) B. Error precursors C. Grounded tool D. Double-insulated/ungrounded tools E. Qualified person F. Fibrillation G. Ground fault circuit interrupter (GFCI)

📝 Answered - Which of these should you ask yourself while you’re identifying a problem?