Neutral point - ANSWER The common point on a wye-connection in a polyphase system
or midpoint on a single phase, 3-wire system, or midpoint of a single phase portion of a 3-
phase delta system, or a midpoint of a 3-wire, direct current system
In the NEC the words ___________indicate a mandatory requirement - ANSWER Shall or
shall not
On a four wire Delta connected system with a midpoint of one phase winding is grounded,
only the conductor or bus bar having a higher phase voltage the ground shall be durably and
permanently marked by an outer finish that is _______ in color or by other effective means.
Such Identification shall be placed at each point on the system where connection is made if
the grounded conductor is also present. - ANSWER Orange
The required working space for access to live parts operating at 300 V to ground, where
there are exposed live parts on one side and grounded parts on the other side is
____________. - ANSWER 3 feet 6 inches
The dimensions of working space for access to live parts operating at 300 V, nominal to
ground, where there are expose live parts on both sides of the workspace
is________________. - ANSWER 4 feet
110.26 A1- Dead front assemblies working space - ANSWER 30" for non-electrical parts
36" for electrical parts
The working space in front of the electrical equipment shall not be less than _______wide,
or of the width of the equipment, whichever is greater. - ANSWER 30"
1
,Large equipment - ANSWER 1200 A or greater and over 6 feet wide
Large equipment means of egress - ANSWER Two means of egress 24" wide by 6.5 feet
tall unless the following condutions are met
1) unobstructed egress
2) Double the workspace
Headroom shall not be less than _______. - ANSWER 6.5 feet or the height of the equip-
ment
Live parts of electrical equipment operating at ______volts or more she'll be guarded against
accidental contact or approved enclosures or by any of the following means - ANSWER 50
volts
4) by elevation of 8 feet or more above the floor or other working surface
A fence shall not be less than ______feet in height - ANSWER 8 feet
One entrance to enclosures for electrical installations as described in 110.31 not less than
_______wide and _________high shall be provided to give access to the working space
around the electrical equipment - ANSWER 30 inches and 6.5 feet
Network compartments shall have at least ________means of access. Each door she'll have
an access that leads to a legal exit. - ANSWER Two
Where rear access is required to work on deenergized parts on the back of enclosed equip-
ment a minimum working space of __________horizontally shall be provided - ANSWER
30 inches
2
,All non-current carrying metal parts of electrical equipment and all metal raceways and ca-
ble shall be solidly grounded and bonded to all metal pipes in rails at the portal and the in-
tervals not exceeding _____________throughout the tunnel. - ANSWER 1000 feet
Manhole workspace for cabling-A clear workspace not less than _______wide shall be pro-
vided were cables are located on both sides and not less than _______were cables are only
on one side. - ANSWER 3 feet
2-1/2 feet
Access to manhole dimensions. Rectangular access openings shall not be less than _______.
Round access openings in a manhole shall be not less than ______inches in diameter - AN-
SWER 26" x 22"
26"
Manhole openings for personnel shall be located where they are not directly above electrical
equipment or conductors in the enclosure. Where this is not practiceable either a
________or a _______shall be provided. - ANSWER Protective barrier of fixed ladder
And insulated grounded conductor of _____or smaller shall be identified by a continuous
white or gray outer finish or by three continuous white stripes on other than green insula-
tion along its entire length. - ANSWER 6 awg
Manhole covers shall be over ______pounds or otherwise designated to require the use of
tools to open. - ANSWER 100 pounds
The grounded conductors of other systems shall have a different outer covering conforming
to 200.6A or 200.6B or by an outer covering of ______or _______with a readily distinguisha-
ble colored stripe other than green running along the insulation - ANSWER White or gray
Where conductors of different systems are installed in the same race way, one system she'll
have a neutral having an outer covering of white or natural gray and each other system
3
, having a neutral shall have an another covering of - ANSWER White with colored Stripe
other than green or distinguish by other suitable approved means
For screw shell devices with attach leads the conductor attached to the screw shell shall
have a _______or ________finish. - ANSWER White or gray
In addition to the number of branch circuits required by other parts of the section
_______or more 20 A small appliance branch circuits shall be provided for all receptacle out-
lets specified by 210.52B. - ANSWER Two
An individual branch circuit shall be provided for each _________receptacle required by
210.52 I. - ANSWER Air-Conditioning
Branch circuits required in a dwelling unit. - ANSWER 1) small appliance branch circuit
2) laundry branch circuit
3) bathroom branch circuits
4) Air-Conditioning (NYC AMEND)
The maximum voltage drop on branch circuit conductors is _________percent. - ANSWER
3%
Overall 5%
The maximum voltage drop on feeder circuits is ________. - ANSWER 2%
Overall 5%
Dwelling unit circuits running through another dwelling unit in common areas. What per-
centage of change will require it to be brought up to current code? - ANSWER 50%
Receptacle outlets in floors shall not be counted as part of the required number of recepta-
cle outlets unless located within _________of the wall. - ANSWER 18"
4
or midpoint on a single phase, 3-wire system, or midpoint of a single phase portion of a 3-
phase delta system, or a midpoint of a 3-wire, direct current system
In the NEC the words ___________indicate a mandatory requirement - ANSWER Shall or
shall not
On a four wire Delta connected system with a midpoint of one phase winding is grounded,
only the conductor or bus bar having a higher phase voltage the ground shall be durably and
permanently marked by an outer finish that is _______ in color or by other effective means.
Such Identification shall be placed at each point on the system where connection is made if
the grounded conductor is also present. - ANSWER Orange
The required working space for access to live parts operating at 300 V to ground, where
there are exposed live parts on one side and grounded parts on the other side is
____________. - ANSWER 3 feet 6 inches
The dimensions of working space for access to live parts operating at 300 V, nominal to
ground, where there are expose live parts on both sides of the workspace
is________________. - ANSWER 4 feet
110.26 A1- Dead front assemblies working space - ANSWER 30" for non-electrical parts
36" for electrical parts
The working space in front of the electrical equipment shall not be less than _______wide,
or of the width of the equipment, whichever is greater. - ANSWER 30"
1
,Large equipment - ANSWER 1200 A or greater and over 6 feet wide
Large equipment means of egress - ANSWER Two means of egress 24" wide by 6.5 feet
tall unless the following condutions are met
1) unobstructed egress
2) Double the workspace
Headroom shall not be less than _______. - ANSWER 6.5 feet or the height of the equip-
ment
Live parts of electrical equipment operating at ______volts or more she'll be guarded against
accidental contact or approved enclosures or by any of the following means - ANSWER 50
volts
4) by elevation of 8 feet or more above the floor or other working surface
A fence shall not be less than ______feet in height - ANSWER 8 feet
One entrance to enclosures for electrical installations as described in 110.31 not less than
_______wide and _________high shall be provided to give access to the working space
around the electrical equipment - ANSWER 30 inches and 6.5 feet
Network compartments shall have at least ________means of access. Each door she'll have
an access that leads to a legal exit. - ANSWER Two
Where rear access is required to work on deenergized parts on the back of enclosed equip-
ment a minimum working space of __________horizontally shall be provided - ANSWER
30 inches
2
,All non-current carrying metal parts of electrical equipment and all metal raceways and ca-
ble shall be solidly grounded and bonded to all metal pipes in rails at the portal and the in-
tervals not exceeding _____________throughout the tunnel. - ANSWER 1000 feet
Manhole workspace for cabling-A clear workspace not less than _______wide shall be pro-
vided were cables are located on both sides and not less than _______were cables are only
on one side. - ANSWER 3 feet
2-1/2 feet
Access to manhole dimensions. Rectangular access openings shall not be less than _______.
Round access openings in a manhole shall be not less than ______inches in diameter - AN-
SWER 26" x 22"
26"
Manhole openings for personnel shall be located where they are not directly above electrical
equipment or conductors in the enclosure. Where this is not practiceable either a
________or a _______shall be provided. - ANSWER Protective barrier of fixed ladder
And insulated grounded conductor of _____or smaller shall be identified by a continuous
white or gray outer finish or by three continuous white stripes on other than green insula-
tion along its entire length. - ANSWER 6 awg
Manhole covers shall be over ______pounds or otherwise designated to require the use of
tools to open. - ANSWER 100 pounds
The grounded conductors of other systems shall have a different outer covering conforming
to 200.6A or 200.6B or by an outer covering of ______or _______with a readily distinguisha-
ble colored stripe other than green running along the insulation - ANSWER White or gray
Where conductors of different systems are installed in the same race way, one system she'll
have a neutral having an outer covering of white or natural gray and each other system
3
, having a neutral shall have an another covering of - ANSWER White with colored Stripe
other than green or distinguish by other suitable approved means
For screw shell devices with attach leads the conductor attached to the screw shell shall
have a _______or ________finish. - ANSWER White or gray
In addition to the number of branch circuits required by other parts of the section
_______or more 20 A small appliance branch circuits shall be provided for all receptacle out-
lets specified by 210.52B. - ANSWER Two
An individual branch circuit shall be provided for each _________receptacle required by
210.52 I. - ANSWER Air-Conditioning
Branch circuits required in a dwelling unit. - ANSWER 1) small appliance branch circuit
2) laundry branch circuit
3) bathroom branch circuits
4) Air-Conditioning (NYC AMEND)
The maximum voltage drop on branch circuit conductors is _________percent. - ANSWER
3%
Overall 5%
The maximum voltage drop on feeder circuits is ________. - ANSWER 2%
Overall 5%
Dwelling unit circuits running through another dwelling unit in common areas. What per-
centage of change will require it to be brought up to current code? - ANSWER 50%
Receptacle outlets in floors shall not be counted as part of the required number of recepta-
cle outlets unless located within _________of the wall. - ANSWER 18"
4
