A 20 in. conduit nipple placed between 2 panel boards may be
filled to a maximum of Correct Answers 60% Ch 9 tables
A health care facility is required to have an essential electrical
system. Which of the following must be connected to the critical
branch of the essential electrical system? Correct Answers
Nurse call system NEC 517.33
A lighting fixture installed under a covered porch protected from
rainfall must be listed for use in a _________ location Correct
Answers Damp NEC 410.10
A load with a resistance of 16 ohms placed on a 240 volt circuit
will have a current draw of __________ amps Correct Answers
15 240/16
A restaurant is supplied by 500KCMIL copper service entrance
conductors. What is the minimum size copper grounding
electrode conductor allowed to be used to connect to the metal
water piping system? Correct Answers 1/0 AWG table 250.66
pg 116
A switch used to control a transformer for outline lighting must
have a rating of not less than ______ times the current rating of
the transformer. Correct Answers 2.00 600.6 NEC
A television antenna installed on a residence must be connected
to a copper grounding electrode conductor not smaller than
________ Correct Answers 10 AWG 810.21
, An AC Circuit with a resistance of 10 ohms and a current of 10
amps would have what total wattage? Correct Answers 1000
watts 100(10)=
Appliances rated over_____________ shall be permitted to use
the branch circuit breaker as the disconnecting means where the
circuit breaker is within sight of the appliance Correct Answers
300 VA 422.31 NEC
Cable Trays shall include fittings or other suitable means for
Correct Answers Changes in Direction
Class 1 Circuit conductors and supply conductors may occupy
the same raceway Correct Answers when functionally
associated
Expansion fittings and telescoping sections of metal raceways
shall be made electrically continuous by Correct Answers
Equipment bonding jumpers
Flexible metal conduit must be secured at intervals not to exceed
Correct Answers 4.5 ft NEC 348.30
How many 1 Awg, XHHW compact aluminum conductors are
permitted in a 2 in. rigid metal conduit 42 ft long? Correct
Answers 10 pg 765
How many 12 AWG THHN conductors are permitted in a 4 in.
x 1.5 in. square box? Correct Answers 9 Table 314.16