Year 2 Final

what size copper grounding electrode conductor is required for a service that uses aluminum 800 kcmil conductors for the phases A. 1/0 B. 2/0 C. 3/0 D. 4/0

1/0 table 250.66

OSHA requires workers to stay the minimum distance of _____ ft from electrical lines A. 6 B. 8 C. 10 D. 12

10 ft

to qualify as an electrode a water pipe must be in contact with the earth for at least ____ feet A. 12ft B.10ft C.4ft D.8ft

10ft article 250.52 A 1

what size copper grounding electrode conductor is required for a service that uses copper 650 kcmil conductors for the phases A. 1/0 B. 2/0 C. 3/0 D. 4/0

2/0 table 250.66

a sheet metal gutter shall not exceed ____ of the cross sectional area for conductor fill A. 10% B. 15% C. 20% D. 30%

20% article 366.22 a

rod or pipe electrodes must be supplemented by another electrode unless the resistance to ground is not over ____ ohms A.15 B. 10 C. 45 D. 25

25 article 250.53 2 exception

non-metallic auxiliary gutters shall be supported at intervals not exceeding____ and at every end or joint A. 10 B. 7 C. 5 D. 3

3 article 366.30 b

where rock bottom is encountered when driving a ground rod at an angle up to 45 degrees the electrode can be buried in a trench at least ____ deep A. 18in B. 30in C. 4ft D. 8ft

30in article 250.53 G

an extension ladder must extend a minimum of _____ ft over the landing to be safe A. 3 B. 4 C. 5 D. 6

3ft

no matter what the service size the largest copper grounding electrode conductor ever required to a concrete encased electrode is ______ A. 2 B. 4 C. 6 D. 8

4 article 250.66 b

a busway shall be supported no more than ______ ft intervals A. 3 B. 4 C. 5 D. 6

5ft 368.30

when using a water pipe as an electrode you must connect to it within ______ feet of where the water pipe enters the building A. 2 B. 3 C. 4 D. 5

5ft article 250.68 c

no matter what the service size the largest copper grounding electrode conductor ever required to a driven ground rod pipe or plate electrode is ______ A.2 B. 4 C. 6 D. 8

6 article 250.66 a

if a ground rod is supplemented by another ground rod you must space them apart at least _____ feet apart A. 1 B. 4 C. 6 D. 10

6ft article 250.53 3

lighting busway and trolley busway should not be installed less than____ above the floor or working platform A. 6ft B. 10ft C. 8ft D. 12ft

8ft article 368.12 E

when threading EMT threads should be no more than .002in deep A. True B. False

False No article

when bending EMT you must A. no more than 45 degree bends are made B. ID of tube stays true to size C. markings are visible after bend D. bender is listed

ID of tube stays true to size article 358.24

one good way to prevent materials handling hazards is to_____ A. refuse to allow personnel to ride equipment without a seat and seatbelt B. report all damaged equipment immediately C. operate within manufacturers specifications D. all of these

all of the above no article

employers must satisfy all of the following requirements except A. provide ppe necessary to protect employees who are operating hand and power tools and are exposed to hazards B. comply with OSHA training and inspection standards related to hand and power tools C. determine which manufacturers requirements and recommendations for a tool shall be followed or ignored D. do not issue or permit the use of unsafe hand tools

do not issue or permit the use of unsafe hand tools

which of the following are OSHAS focus 4 hazards A. electrocution falls struck by and ladders B. electrocution falls struck by and caught in C. electrocution struck by falls and power tools D. electrocution struck by falls and ppe

electrocution falls struck by and caught in

who trains employees that work on scaffolds A. employees do not need training B. employees are responsible for their own training C. fellow employees who have experience D. employer designated competent person

employer designated competent person

which of the following is the leading cause of injury and death on the work site today A. chemical poisoning B. electrocution C. falls D. incompetence

falls

which of the following is considered approved eye protection A. sunglasses B. prescription glasses C. reading glasses D. glasses meeting ANSI standard 287

glasses meeting ANSI standard 287

which of the following is a permitted use of EMT A. in concrete B. underwater C. below roadways D. none of the above

in concrete article 358.10 1

all EMT and fitting shall be A. made of steel B. waterproof C. listed D. approved by ahj

listed article 358.6

which of the following actions may expose workers to electrical shock hazards and should be avoided A. removing the grounding pin on a 3 prong plug B. using double insulated tools C. using a grounded adaptor to accommodate a 2 prong receptacle D. removing damaged tools from service and tagging them do not use

removing the grounding pin on a 3 prong plug

OSHA classifies struck by hazards as all of the following except A. falling object B. thrown object C. rolling object D. swinging object

rolling object

who is responsible for providing ppe A. the employer B. the employee C. OSHA D. workers compensation

the employer no article

what is the mission of OSHA A. to assure safe and healthy working sites for men and women B. to assure safe and healthy workings zones for men and women C. to assure safe and healthy working areas for men and women D. to assure safe and healthy working conditions for men and women

to assure safe and healthy working conditions

fastening of EMT at intervals of 5ft from an outlet box is permitted under certain conditions A. True B. False

true article 358.30 exception no. 1

which of the following is an example of an unsafe practice regarding the use of tools A. keeping cutting tools sharp B. wearing eye and face protection while operating a grinder C. using a screwdriver to carve or cut wood D. following manufacturers instructions when using a tool

using a screwdriver to carve or cut wood

the only electrode that must always be supplemented_______ electrode A. water pipe B. ground bar C. structure rebar D. service enclosure

water pipe article 250.53 D 2

a busway cannot be located in _____ areas A. Dusty B. Oily C. Wet D. Industrial

wet article 368.12 D

the need for hearing protection is triggered at which decibel level A. when it exceeds 80 decibels B. when it exceeds 90 decibels C. when it exceeds 100 decibels D. when it exceeds 110 decibels

when it exceeds 90 decibels

on a work site the first person responsible for safety is? A. foreman B. boss C. safety monitor D. you

you