According to the NEC, allowance for the future expansion of installations is A. an exception. B. in everyone's best interest. C. defined. D. a requirement

20.a. What's the primary disadvantage of using copper conductors?A. DurabilityB. CostC. AvailabilityD. Weight20.b. The NEC requires that each service-disconnecting means be suitable forA. hazardous locations.B. disconnecting the meter.C. wet conditions.D. the prevailing conditions 20.c. As a general rule, each building or structure is limited to a single service. What's an automatic exceptionto this rule?A. A second service deemed suitable for useB. A second service having the proper markingsC. Emergency systems or fire pumpsD. Higher building occupancy

5. Electrical apprentices must take _______ core hours of training to satisfy the Michigan academic program requirement. A. 650 B. 550 C. 250 D. 450

16. Flexible metal conduit will be installed between a raceway and a transformer in a system. If it's to serve as an equipment grounding conductor, the flexible conduit and its fittings must be less than _______ feet. A. 2 B. 6 C. 10 D. 4 17. In which of the following situations can an equipment ground conductor be run separately from the circuit conductors? A. When you install a GFCI and are connecting additional receptaclesB. When the connection is to be made to a nearby water pipeC. When you're replacing an ungrounded two-wire receptacle with a grounded receptacle D. When there are no spare conductors in the cable 18. A 400-amp circuit breaker protects a feeder that's installed in a nonmetallic raceway that requires an equipment grounding conductor. Which of the following is the minimum size of aluminum equipment grounding conductor that should be used in this situation? A. No. 4B. No. 1C. No. 6 D. No. 2 19. Which of the following is bonded to the grounding electrode system…