CBO BC Training Quiz 17

161. A minor garage that is 800 square feet and has 800 CFM ventilation taken within 12” of the floor shall have what classification?

Unclassified Class 1 Class 2 Class 1 Division 1

162. A receptacle in a wall 10’ away that is 12” off the ground is in what classification?

Class 1 Division 2 Class 2 Division 2 Class 1 Division 1 Class 1 Division 3

163. Receptacles in a dentist’s office have to be?

GFCI protected At least 16" off the ground At least 1 within 2 feet of each interior door 20 amp

164. Life safety systems need to have power restored automatically within how many seconds of interruption?

90 seconds 10 seconds 60 seconds 12 seconds

165. Exit signs need to have?

Two independent sources of power Be illuminated only during the day Use standby power Required to energize within 60 seconds of loss of power

166. What is the minimum service rating for a mobile home?

200 amps 50 amps 100 amps 75 amps

167. Shore power for boats shall be provided by single receptacles rated not less than how many amps?

30 20 15 10

168. What is the minimum size of copper conductor required to ground a pool motor?

12 AWG 10 AWG 14 AWG 15 AWG

169. A 150 V overhead wire is 3’ horizontal from a pool, and 12’ above. Is this acceptable and why?

No, too low. Needs to be 22.5' It is acceptable as it is more than 10' away Yes, it is accepable at more than 2' horizontally away No, it is too low, as it needs to be 12' above or more

170. What type of wire is required at a minimum to bond pool equipment?

Solid 8 AWG 12 AWG 4/0 250 kcmil

CBO BC Training NEC Quiz 17

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