Master Electrician License Test Flashcards
- Multi-wire branch circuits are permitted to supply ______.
a. line to neutral loads
b. any load connected to a grounded circuit.
C. both single and three phase loads
d. all of these
conductor
Line to Neutral Loads
Devices are equipment that carrry current, but do not
a. control power
b. utilize electric energy
C. provide overcurrent protection
d. serve a grounding function
utilize electrical energy
- Branch circuit conductors at outlet boxes are required to have at least ____ inches of free lenght for making
splices and connections.
a. 4
b. 6
C. 8
d. 12
6 inches
300.14
Ceiling suspended (paddle) fans are required to be installed on _____
a. metallic boxes only
b. boxes listed for supporting fixtures weighing fifty pounds or more
C. boxes marked “acceptable for fan support”
d. boxes secured directly to a ceiling joust
or other structural element
boxes marked “acceptable for fan support”
314.27 D
Alternating current, general use snap switches are UL listed to control motors rated up to _____ Horsepower.
a. 1/2
b. 3/4
C. 2
d. none of the above
2 horsepower
430.83 C1
Convenience receptacles connected to 20 ampere branch circuits are permitted to be rated ____.
a. 15 ampere, 125 volt
b. 20 ampere, 125 volt
C. 25 ampere, 125 volt
d. both a and b
15 ampere, 125 volt or
20 ampere, 125 volt
The minimum depth for a 120 volt, 15 ampere, GFCI protected circuit to an outdoor pole light run under a paved driveway is
a. 6 inches (150 mm)
b. 12 inches (300 mm)
C. 18 inches (450 mm)
d. 24 inches (600 mm
24 inches (600 mm
table 300.5
15 amps is not mention
. The best way to increase the D.C. voltage of a rotary converter is to:
a. add resistance to the field
b. remove resistance from the field
C. increase the A/C voltage
d. decrease the A/C voltage
increase the A/C voltage
ohms laws
According to the NYC electrical code, an IT equipment room must have a disconnectig switch at the main
entrance to disconnect:
a. all lights and power to the room
b. all power to electronic equipment
C. all power to the A/C, system and power to electronic equipment
d. all power to the A/C, electronic
equipment and the U.P.S. system
all power to the A/C, electronic
equipment and the U.P.S. system
645.10
645.11
According to the NYC code a 500 watt incandescent bulb requires an:
a. edison base socket
b. Mogul base socket
c. Bi-pin base socket
d. Candelabra base socket
Mogul base socket
410.103
An electric closet with a transformer must be provided with mechanical ventilation when at the air
temperature reaches:
a. 104 celsius
b. 40 fahrenheit
C. 104 fahrenheit
d. 80 celsius
104 fahrenheit
450.9 amendment
A light fixture hung form a lighting outlet box shall have a maximum weight of:
a. 40 lbs
b. 25 lbs
C. 50 lbs
d. 35 lbs
50 lbs
314.27 B
The wiring method not permitted to be used under a raised computer room floor is :
a. A/C
b. N.M.C.
C. M.C.
d. D.P.
M.C.
???
A A/C inductive motor circuit controlled by standard general use snap switch shall have the ability to handle:
a. 80% of the load
b. 100% of the load
C. 50% of the load
d. none of these
50% of the load
404.14 B2 a/c and d/c inductive load
404.14 A3. Resistive and inductive
???Recptacles installed within six feet of a wet bar and serve the countertop are required
a. to have GFCI protection
b. to not be installed face up in countertops
C. to be installed at least six inches above the countertop
d. or work surfaces
to have GFCI protection
