17. Electrical plans show the items to be installed, their approximate location, and the circuits to which they are
connected. Looking at the electrical plan of figure 3-33, how many lines make up the incoming service? (para
3-23,a) (fig 3-33)
18. By adding up the individual power requirements for the items connected to any one circuit, you can determine
the total load for that circuit What is the total load, expressed in watts, connected to circuit A4 of figure 3-33?
(para 3-23,a) (fig 3-33)
19. Notice that two circuit breaker panels are shown in figure 3-33. The circuit breakers are installed as protective
devices against overload or short-circuit conditions. How many circuits are connected to circuit breaker panel
"A"? (para 3-23,a) (fig 3-33)
20. Referring again to figure 3-33, note the double arrowhead marked "B1, B2." How many connections are made
between this point and the circuit breaker connection? (para 3-27,a) (fig 3-31, 3-33)
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