1) Two inductors are connected in parallel to a 120-V, 60-Hz supply. The values of the inductors are 1.5 H and 2.5 H. The total inductive reactance is a) 565.5 Ω b) 533.49 Ω c) 942.5 Ω d) 1508 Ω 2) Two inductors are connected in parallel to a 120-V, 60-Hz supply. The values of the inductors are 0.15 H and 0.225 H. The total inductive reactance is a) 3.067 A b) 3.54 A c) 2.12 A d) 1.41 A 3) Two inductors are connected in series to a 120-V, 60-Hz supply. The values of the inductors are 1.5 H and 2.5 H. The total inductive reactance is a) 3.067 A b) 0.74 A c) 1.25 A d) 1.82 A 4) An inductor is connected to a 120-V, 60-Hz supply. The current in the circuit is 2.4 A. What is the inductive reactance? a) 157.08 Ω b) 288 Ω c) 904.8 Ω d) 50 Ω 5) A three-branch parallel circuit has resistances of 22 kΩ, 68 Ω, and 33 Ω connected to a 300 V source. What is the total power of the circuit? a) 4a b) 4kw c) 4.09 W d) 2.73 W 6) A 270 Ω, a 150 Ω, and a 220 Ω resistor are connected in parallel. The applied voltage is 480 V. What is the current total of the 270 Ω and the 150 Ω resistors? a) 3.2 A b) 4.98 A c) 1.78 A d) 2.18 A 7) A parallel circuit composed of a 10 Ω and a 22 Ω resistor. It has a supply voltage of 60 V. What is the current in the 10 Ω resistor? a) 1.88 A b) 2.73 A c) 5 A d) 6 A 8) A dedicated PV system circuit breaker, suitable for backfeed and positioned at the opposite end of the bus from the __________, is a requirement of NEC 705.12(B). a) panelboard b) disconnecting means c) modules d) main circuit breaker 9) A PLC assumes inputs to be _______ when a program is loaded into memory. a) high b) set c) off d) low 10) The simplest way to convert a ladder diagram into a________ is to make the changes in stages. a) terminal diagram b) logic circuit c) schematic d) coil diagram

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