NEC Questions and Answers 100% Solved
Conduit syatems passing from an enclosure or room that is unclasssified as a result of
pressurization into a _______________ location shall not require a seal at the boundary.
501.15 (2) Correct Answ_Class I - Division 2
In a completed seral, the minimum thickness of the sealing shall in no case be less than
__________ inch.
501.15 (c)(3) Correct Answ_5/8
Cable passing from an enclosure or room that is unclassified as a result of type z pressurization
into a ____________ shall not require a seal at the boundary.
501.17 (e) Correct Answ_Class I - Division 2
Elecctrically heated utilization equipment shall not exceed _________ percent of the ignition
temperature in degree of the gas or vapor.
501.135 Correct Answ_80
,In industrial establishments with limited public access, where the conditins of maintance and
supervision ensure that only qualified persons service the installation of type ________ cable
shall be permitted.
501.10 (3) Correct Answ_MC
An electrical component that does not generate more than 1.5 volts, 100 milliamps, and 25 mill-
watts is a _____________.
504.2 Correct Answ_simple apparatus
________________ apparatus, as described on the control drawing, shall not be required to be
listed.
504.4 Correct Answ_simple
In class I Division 2 location where the enforcing agency determines that there is mechanical
ventilation providing a minimum of ______________ air change per hour.
511.3 (c)(1) Correct Answ_4
Any pit or pedression below floor level shall be considered to be a ____________ location.
511.3 (c)(3) Correct Answ_Class I - Division 1
,Arc equipment that is less _________ feet above the floor level and that may produce arcs,
sparks, or particles of hot metal.
511.7 (b)(1)(a) Correct Answ_12
Lamps and lamp-holder for fixed lighting that is located over lanes through which vehicles are
commonly driven shall not be less than ________ feet above the floor level.
511.7(b)(1)(b) Correct Answ_12
Where electrical diagnostic equipment are to be used it shall have _____________ protection for
personal.
511.12 Correct Answ_GFI
Areas not cut off for ventilation from aircraft hanger, shallbe classified as a _________________
or zone 2 location up to a level of 18 inches above the ground.
513.3(b) Correct Answ_Class I - Division 2
In Class I - Division 2 at motor fuel dispensing facilities or commercial garages the distance shall
have least _______ feet of ant edge, extending in any direction.
, 514.3 (B)(2) Correct Answ_5
Emergency control shall be installed at a location acceptable by the authority having jurisdiction,
by the control shall be more than ________ feet from the dispensers and emergency controls
shall shut off all power to all dispensing equipment.
514.11 (C) Correct Answ_20
Underground wiring shall be installed in threaded rigid metal conduit or threaded stell
intermediate metal conduit or, where buried under not less than _______ feet.
515.8 Correct Answ_2
For spraying operations confined to an enclosed spray booth or room, the space within
_________ feet in any direction from any opening shall be considered Class 1 or Class 2
516.3 (4) Correct Answ_3
A subsystem of the emergency system consisting of feeders and branch circuits is a
_____________.
517.2 Correct Answ_life safely branch
Conduit syatems passing from an enclosure or room that is unclasssified as a result of
pressurization into a _______________ location shall not require a seal at the boundary.
501.15 (2) Correct Answ_Class I - Division 2
In a completed seral, the minimum thickness of the sealing shall in no case be less than
__________ inch.
501.15 (c)(3) Correct Answ_5/8
Cable passing from an enclosure or room that is unclassified as a result of type z pressurization
into a ____________ shall not require a seal at the boundary.
501.17 (e) Correct Answ_Class I - Division 2
Elecctrically heated utilization equipment shall not exceed _________ percent of the ignition
temperature in degree of the gas or vapor.
501.135 Correct Answ_80
,In industrial establishments with limited public access, where the conditins of maintance and
supervision ensure that only qualified persons service the installation of type ________ cable
shall be permitted.
501.10 (3) Correct Answ_MC
An electrical component that does not generate more than 1.5 volts, 100 milliamps, and 25 mill-
watts is a _____________.
504.2 Correct Answ_simple apparatus
________________ apparatus, as described on the control drawing, shall not be required to be
listed.
504.4 Correct Answ_simple
In class I Division 2 location where the enforcing agency determines that there is mechanical
ventilation providing a minimum of ______________ air change per hour.
511.3 (c)(1) Correct Answ_4
Any pit or pedression below floor level shall be considered to be a ____________ location.
511.3 (c)(3) Correct Answ_Class I - Division 1
,Arc equipment that is less _________ feet above the floor level and that may produce arcs,
sparks, or particles of hot metal.
511.7 (b)(1)(a) Correct Answ_12
Lamps and lamp-holder for fixed lighting that is located over lanes through which vehicles are
commonly driven shall not be less than ________ feet above the floor level.
511.7(b)(1)(b) Correct Answ_12
Where electrical diagnostic equipment are to be used it shall have _____________ protection for
personal.
511.12 Correct Answ_GFI
Areas not cut off for ventilation from aircraft hanger, shallbe classified as a _________________
or zone 2 location up to a level of 18 inches above the ground.
513.3(b) Correct Answ_Class I - Division 2
In Class I - Division 2 at motor fuel dispensing facilities or commercial garages the distance shall
have least _______ feet of ant edge, extending in any direction.
, 514.3 (B)(2) Correct Answ_5
Emergency control shall be installed at a location acceptable by the authority having jurisdiction,
by the control shall be more than ________ feet from the dispensers and emergency controls
shall shut off all power to all dispensing equipment.
514.11 (C) Correct Answ_20
Underground wiring shall be installed in threaded rigid metal conduit or threaded stell
intermediate metal conduit or, where buried under not less than _______ feet.
515.8 Correct Answ_2
For spraying operations confined to an enclosed spray booth or room, the space within
_________ feet in any direction from any opening shall be considered Class 1 or Class 2
516.3 (4) Correct Answ_3
A subsystem of the emergency system consisting of feeders and branch circuits is a
_____________.
517.2 Correct Answ_life safely branch
