Year 1 Rocks!
34. If the resistance is raised in a simple circuit, what will the current do?
a. Remain the same
b. Go up
c. Fluctuate
d. Go down
What is go down?
(d.)
17. A 1,000 watt heating element will draw ____ amps at 120 volts. The element is rated to operate at 120 volts.
a. 6.67
b. 10.41
c. 14.4
d. 8.33
What is 14.4 amps?
(d.)
11. Grounding is covered in Article ____ in the NEC.
a. 110
b. 250
c. 210
d. 200
What is Article 250?
(b.) NEC 250.1
39. If three 2" x 3" sectional boxes are fastened together properly, what is the resulting combination called?
a. 3-way box
b. 3-switch box
c. 3-gang box
d. 3- position box
What is 3-gang box?
(c.)
21. If you use 25% of the conduit from the storage rack, how many feet of conduit will you have remaining on the rack? You started with 580 sticks of pipe that are each 10 feet long.
a. 435
b. 1450
c. 232
d. 4350
e. 2320
What is 4350 feet?
(d.)
580 X 10 = 5800
5800 x (100%-25%) = 4350 ft.
42. What does the "Sp" symbol represent?
a. switch with pilot lamp
b. power switch
c. perimeter switch
d. pull chain switch
What is a switch with pilot lamp?
(a.)
66. To feed a 240-volt resistive heating load that draws 10 amps, 400' of raceway is installed. You pulled in 12 AWG THHN copper conductors. Where K=12, what is the voltage drop on the wire?
a. 29.4
b. 9.25
c. 8.49
d. 14.7
e. 7.35
What is 14.7?
(d.)
57. What is the ampacity of 10 AWG THWN/THHN copper wire in a 63oC environment?
a. 26 A
b. 30 A
c. 11.55 A
d. 40 A
e. 35 A
What is 26 A?
(a.)
Table 310.15(B)(16)/310.15(B)(2)
47. To get a 40-inch long 90o stub-up in 1 1/4-inch EMT, you will place the bender arrow at ____ inches from the measured end of the conduit.
a. 32
b. 31
c. 30
d. 29
e. none of these
What is 29 inches?
(d.)
36. A duct heater has a nameplate rating of 6.32KW @ 250 volts. This duct heater will draw ___ amperes, when operated at 230 volts.
a. 25.28
b. 27.48
c. 9.89
d. 23.26
e. 29.87
What is 23.26?
(d.)
52. In a dry location, the maximum operating temperature of a conductor with Type THHN insulation is ____ oC.
a. 60
b. 75
c. 90
d. 105
What is 90oC?
(c.)
119. A room is to be illuminated with track lighting. Twenty track heads (fixtures) will be installed in the track. A 75 W PAR38 lamp will be installed in each head. The lighting is to be controlled by a dimmer. The smallest dimmer that can be installed has a rating of ___ watts.
a. 600
b. 1,000
c. 1,500
d. 2,000
What is 1,500 watts?
(c.)
20 x 75W = 1,500 W
71. The Code section that addresses sensor (automatic) control of lighting in a restaurant bathroom is ___. Select N/A (not applicable) if there is NOT a Code reference for this.
a. 210.20(A)(1) Exc 2
b. 210.8(A)(1)
c. 210.8(B)(1)
d. 210.70(A)(2)
e. N/A
What is N/A?
NEC 210.70(A)(1) Exc 2
102. Luminaire is a term that refers to ________.
a. incandescent lighting fixtures
b. fluorescent lighting fixtures
c. outdoor pole-mounted fixtures
d. either a or b
e. either a, or b, or c
What is either a, or b, or c?
(e.)
144. What is the minimum size EMT required for a new installation where six 1/0 AWG and nine 3/0 AWG THHN/THWN copper conductors are to be installed?
a. 2
b. 2 1/2
c. 3
d. 3 1/2
e. none of these
What is 3?
(c.)
[6 x .1855] + [9 x .2679] = 3.5241 in2 = 3" EMT
74. SPDT switches are commonly called "___-___" switches.
a. three-way
b. single-pole
c. double-pole
d. four-way
What is three-way switches?
(a.)
145. What minimum size Schedule 80 PVC conduit is required where four 600 kcmil and one 1/0 AWG conductors are to be installed? All conductors are THHN/THWN.
a. 2 1/2
b. 5
c. 6
d. 4
e. 2
What is 4?
(d.)
4(.8676) + 1(.1855) = 3.6559 in2 = 4" PVC
84. For branch circuits rated 120 volts, 20 ampere and supplying two or more receptacles, the receptacles are permitted to be rated _____.
I. 15 amperes
II. 20 amperes
a. I only
b. II only
c. either I or II
d. neither I or II
What is either 15 amperes or 20 amperes?
(c.) either I or II
NEC 210.21(B)(3)
62. NM cable is permitted to be installed in normally ___ locations.
a. wet
b. dry
c. damp
d. any of these
What is dry locations?
(b.)
26. How many complete sections of Wiremold can be cut from a 5-foot-long piece that you remove from the shipping box? Each section will need to be cut so that it is 1'-2 3/8" long.
a. 3
b. 4
c. 5
d. 6
e. 7
What is 4 sections?
(b.)
88. NEC Section ____ requires that all 125-volt, single-phase 15- and 20-ampere receptacles used for temporary construction power be GFCI protected.
a. 250.138(A) Exception
b. 215.9
c. 210.8(B)
d. 590.6(A)
e. 590.4(D)
What is 590.6(A)?
(d.)
35. What is the current drawn by a garage door opener motor if the nameplate supplies the following information and it is operated at 130 volts:
13.8 amps 115 amps
a. 8.3333
b. 9.4203
c. 8.6956
d. 13.8
e. 15.6
What is 15.6?
(e.)
122. As measured along the floor line, make sure tht a receptacle is not more than _____ feet from the next receptacle when laying out the wall receptacle locations in a bedroom in a house.
a. 4
b. 6
c. 12
d. 9
e. 2
What is 12 feet?
(c.)
NEC 210.52(B)(2)
129. In a dwelling, 12-volt thermostat wiring is generally considered to be ____ wiring.
a. Class 2
b. Class 3
c. Class 1
What is Class 2 wiring?
(a.)
48. For a single-family dwelling with a total of 3500 square feet of occupied area, the minimum number of 15-ampere lighting branch circuits is ____.
a. 8
b. 5
c. 7
d. 6
What is 6 circuits?
(d.)