Section 0 and 2
Class A GFCI devices are designed to trip at 6mA or more
What is Yes - Definitions - page 63
What is the smallest copper AWG conductor size than can be used for branch circuit?
What is #14 AWG - Rule 4-002
What is the minimum wire size allowed by the code for consumer service conductors?
What is #10 Copper and #8 Aluminum - Rule 6-302-4
A single family dwelling has a main service of 100 amps. What is the minimum space requirement for the branch circuit breakers (or fuses) in the panelboard?
What is "as required plus 4 free spaces, with room for 1 two-pole breaker" Rule 8-108 (1)
Is it required by the code to ground the neutral conductor of a three-wire, AC system?
What is Yes
Rule 10-208 (1) (b)
What is the minimum wire size of power conductors that may be run in parallel?
What is #1/0 AWG
Rule 12-108-1
Overload relay heaters may be connected ahead of the power contacts in a magnetic starter.
What is False (No)
Rule 14-404
What must be done when a firewall is pierced by an electrical cable or raceway?
What is Sealed - 2-128-2
A cable or raceway contains 3 of #6 R90 copper branch circuit conductors. What is the maximum current each can carry according to the code? Equipment is rated for 75 degree temperature terminations
What is 65 Amps - Rule 4-004 (1) (b) and Table 2
What is the definition of a "Service Box"?
What is an "assembly consisting of an enclosure that can be locked or sealed, containing either fuses and a switch or a circuit breaker, and of such design that it is possible to operate the switch of circuit breaker to an open position by manual means when the box is closed
Rule - definitions page 69
What is the voltage divisor, according to the code, for a three-wire 120/208 volt system consisting of two ungrounded lines and the neutral, for the purpose of calculating current demands from wattages or volt-amperes?
What is 208V Rule 8-100
Are bonding jumpers required on expansion joints for rigid steel conduit to assure a continuous electrical bond?
What is Yes
Rule 10-608 or 12-1012-2
How far away must N.M.S.C. be installed from outer edges or surface of studs, joist, or similar wooded members through which it may run?
What is 32mm
Rule 12-516-1
Standard fuses may be used for protection of Hot Water tanks
What is No
Rule 14-610
What is the maximum branch circuit voltage-to-ground for a single dwelling?
What is 150V to Ground - Rule 2-110
According to the code, is it mandatory that lamp holders, receptacles, etc. are connected in such a way so as not to interrupt the identified conductor of the circuit if these devices were to be replaced?
What is Yes - Rule 4-030-4
What is the minimum length that service conductors must extend beyond the supply end of the consumer service head? (Drip loops)
What is 750 mm - Rule 6-302-3
How would you determine the feeder conductor’s ampacity which supply loads of a cyclic nature? The various loads cycle in such a way that the maximum load will never be supplied by the feeder conductors at any time.
What is The maximum at any one-time Rule 8-106 (4)
Is an extra bonding conductor required when rigid metal conduit is buried underground?
What is Yes
Rule 10-610-1-a-iii
A three-conductor 600 volt TECK cable is to be direct buried in a trench dug across a narrow street, to be used as feeder conductor for an expanding tailor shop. Give the minimum depth requirements for the trench and the installation of the cable according to the code.
600 mm with no mechanical protection
450 mm with mechanical protection
(sand above and below)
warning tape half way from cable to the surface
12-012 (1) (4) (11) and Table 53
A 15 amp receptacle may be connected to a 20 amp breaker provided the conductor ampacity is 20 amp minimum.
What is NO
Rule 14-600
What kind of enclosure would you choose for an installation in a car wash where the electrical equipment may be subject to direct streams of water?
What is Type 4 - Rule 2-400 (1) (d)
Eight aluminum branch circuit conductors are installed in a single raceway, 3 of which are neutral conductors (carrying only the unbalanced current). What is the ampacity correction factor of each conductor?
What is 80% - Rule 4-004 (2) (c) and (3) and Tables 5C and 4
Can a meter be installed in a 200 amp, 480 Volt service without a disconnect preceding it?
What is NO (limited to 300V line to line) - Rule 6-402 (2) (b)
You use your voltmeter to find that the voltage at the load is 112.8V, the source voltage measured at on the utility side of the service is 120V. Does this meet the requirement of the CEC?
What is No (this is a 7.2% voltage drop, we are only allowed 5% from the utility side of the service to the load)
Rule 8-102 (1) (b)
A six metres run of service conduit is installed in such a way that it cannot be reached from the ground nor is it in contact with any conductive surface. Must this conduit be bonded to ground?
What is Yes, it is a service so bonding is required
Rule 10-604 (1)
How many #14AWG conductors can be installed in a 3 x 2 x 1 1/2 Device Box
What is 5
Rule 12-3034 and Table 23
A 250 amp fuse may be used to protect a feeder to an installation with a demand load of 228 amps (non continuous.)
What is Yes
Rule 14-104 (a) and Table 13
In an apartment building what are the requirements in order to install a 347V fixed mounted heater (with a 120V thermostat) in a dwelling unit?
NEED ALL REQUIREMENTS
What are: Calculated service demand is greater than 250 KVA, and there is a qualified electrical maintenance worker available
Rule 2-110 (a)
What is the current carrying capacity of a #4 R90 single copper conductor when the ambient temperature is 80° C, using free air rating?
What is 140 x .41 = 57.4 amps - Rule 4-004 (7)(b)(i) and Tables 1 and 5A
Are #8 RW90 XLPE copper conductors allowed as service conductors when installed in an underground conduit?
What is Yes - Rule 6-300 (1) (a) and 12-102 (3) and Table 19
An electric range in a residential occupancy has a rating of 11 kW at 120/240 Volts. What is the minimum copper wire size required by the code if N.M.S.C. (Lumex) type NMD90 is to be used. What is the largest size two-pole breaker that is permitted by the code for this installation? 75 degree Equipment Termination Temperature Ratings
What is #8 AWG and 40A 2-pole breaker
Rule 8-300 (1)(a) and Table 2
You are using Teck Cable as a service cable. Is a bonding bushing required at the point of entry into the panel?
What is Yes (bond conductor is NOT in continuous contact with the armour in Teck cable)
Rule 10-604 (2)
What is the maximum number of #12 T-90 nylon conductors according to the code, which may be pulled into a #27 (1”) trade size PVC conduit?
What is 23
Rule 12-910-5 and Tables 8, 6K, 9G
Generally, 3 #2 XLPE RW75 conductors are considered protected by a 125 amp circuit breaker.
What is True (Yes)
14-104-1-a and Table 13