Question

po Red BR 200-watt tungsten FIGURE 17-15 Switch control 8. Determine what type and rated switch is required to control seven 200 wa filament lamps that are connected in parallel to a 120-volt source. For problems 9 through 11, select the best answer to complete the statement, and write letter of your answer in the space provided. 9. If a light is to be controlled from three different locations, the following switches must be used: a. two 3-way and one 4-way. b. two 4-way and one 3-way. c. three 3-way. d. two double-pole. e. three single-pole. 10. A three-way switch is similar to a a. four-way switch b. double-pole, double-throw switch. c. single-pole, single-throw switch. d. single-pole, double-throw switch. e. double-pole, single-throw switch. 11. When a tungsten filament lamp is turned on, the current through the switch is initially a. low but builds up. b. very high. c. moderate. d. dependent on the switch resistance. e. steady.

Answer 1

8)so switch of rating 12 A and type single pole single throw will be suitable to operate the bulbs in parallel

120V switch Je tu Yes I 200w o Loow " in | Ca sk Ik = I, 2q = Iz z Sy a Is a 36 zly z boron . Voltage Iz 7 X IR 2 7X 200 2 11.667 (Iz 11.667 Amps z 2006 120 V

9)option A

Two 3 way one 4 way

10)option D

Single pole double throw switch or SPDT switch

11)option E

Current through switch is steady so that bulb do not flickers