NCCER EXAMS AND STUDY GUIDE
QUESTIONS WITH CORRECT ANSWERS
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"A Group" - Answer -Represents the most hazardous location
1 kilowatt (kw) is the suffix for - Answer -1,000 watts
15 amperes is the maximum standard over current device rating used to? - Answer -Protect
instrument circuits in a panel board
4/0 to 14 AWG is the most common conductors used for? - Answer -Light and power installations
87 1/2 is the minimum percentage rated voltage that a storage battery should? - Answer -Supply
the emergency load
A 90° angle pull box should be? - Answer -Six times the biggest conduit
A battery source consist of two or more cells and - Answer -Convert chemical energy into electrical
energy
A bonding jumper is required for equipment installed in ________ location? - Answer -Class I
A bus bar is not a type of? - Answer -Service disconnect
A conductor has three or less - Answer -Valence electrons
A continuous load is? - Answer -Load where the maximum current is expected to continue for
three hours or more
A fuse should be rated higher than the highest rated component in a? - Answer -Panelboard to be
protected
A magnetic field is generated around the coils when? - Answer -AC flows through a transformer
coil
A pole equipped with both N.C and N.O contacts is designated as a? - Answer -Double throw pole
A pull box for a straight pull must be? - Answer -8x the trade size of conduit
A pull box for conduit entering at right angles must be - Answer -6x the trade size of conduit
A relay designated as a 3PDT-SB relay has? - Answer -N.O & 3 N.C contacts
A relay is an electromechanical component used as a - Answer -Switching device
, A resistor is a component that normally - Answer -Opposes current flow in a DC circuit
A run of conduit must not have more than - Answer -4 quarter bends between fittings and outlets
(180 degrees)
A schematic is a drawing in which - Answer -Symbols are used to represent the components in a
system
A Series circuit has only one route of - Answer -Current flow
A straight pull box should be? - Answer -Eight times the biggest conduit
A wood joist cannot be? - Answer -Drilled and less approved by the manufacture
AC Voltage Tag Colors Class 0 - Answer -Red tag 1,000 volts
AC Voltage Tag Colors Class 00 - Answer -Beige tag 500 volts
AC Voltage Tag Colors Class 1 - Answer -White tag 7,500 volts
AC Voltage Tag Colors Class 2 - Answer -Yellow tag 17,000 volts
AC Voltage Tag Colors Class 3 - Answer -Green tag 26,500 volts
AC Voltage Tag Colors Class 4 - Answer -Orange tag 36,000 volts
All 15/20-amp Receptacle outlets installed in bathroom of dwelling units should always? - Answer -
Require ground fault circuit interceptor
All conductors of a circuit must be installed in the same raceway to? - Answer -Minimize induction
heating
Alternating current changes directions at? - Answer -60Hz
Aluminum conduit should not be? - Answer -Buried in soil or concrete containing calcium chloride
Aluminum should not be used as? - Answer -Grounding electrodes
An acceptable method of identifying grounded conductors larger than NO. 6 AWG is by? - Answer -
Tagging or making them white
An electrical circuit at minimum contains a - Answer -Source, load, and switch
An electrical circuit is a complete path for - Answer -Current flow
An open circuit occurs in a wiring system when? - Answer -A conductor is broken or separated
Asbestos banned in 1978, you need to assume any building constructed before 1980 has -
Answer -Asbestos in it
Because the wall thickness of IMC is less than that of rigid conduit it is? - Answer -Often referred to
as a thin wall conduit
QUESTIONS WITH CORRECT ANSWERS
DOWNLOAD
"A Group" - Answer -Represents the most hazardous location
1 kilowatt (kw) is the suffix for - Answer -1,000 watts
15 amperes is the maximum standard over current device rating used to? - Answer -Protect
instrument circuits in a panel board
4/0 to 14 AWG is the most common conductors used for? - Answer -Light and power installations
87 1/2 is the minimum percentage rated voltage that a storage battery should? - Answer -Supply
the emergency load
A 90° angle pull box should be? - Answer -Six times the biggest conduit
A battery source consist of two or more cells and - Answer -Convert chemical energy into electrical
energy
A bonding jumper is required for equipment installed in ________ location? - Answer -Class I
A bus bar is not a type of? - Answer -Service disconnect
A conductor has three or less - Answer -Valence electrons
A continuous load is? - Answer -Load where the maximum current is expected to continue for
three hours or more
A fuse should be rated higher than the highest rated component in a? - Answer -Panelboard to be
protected
A magnetic field is generated around the coils when? - Answer -AC flows through a transformer
coil
A pole equipped with both N.C and N.O contacts is designated as a? - Answer -Double throw pole
A pull box for a straight pull must be? - Answer -8x the trade size of conduit
A pull box for conduit entering at right angles must be - Answer -6x the trade size of conduit
A relay designated as a 3PDT-SB relay has? - Answer -N.O & 3 N.C contacts
A relay is an electromechanical component used as a - Answer -Switching device
, A resistor is a component that normally - Answer -Opposes current flow in a DC circuit
A run of conduit must not have more than - Answer -4 quarter bends between fittings and outlets
(180 degrees)
A schematic is a drawing in which - Answer -Symbols are used to represent the components in a
system
A Series circuit has only one route of - Answer -Current flow
A straight pull box should be? - Answer -Eight times the biggest conduit
A wood joist cannot be? - Answer -Drilled and less approved by the manufacture
AC Voltage Tag Colors Class 0 - Answer -Red tag 1,000 volts
AC Voltage Tag Colors Class 00 - Answer -Beige tag 500 volts
AC Voltage Tag Colors Class 1 - Answer -White tag 7,500 volts
AC Voltage Tag Colors Class 2 - Answer -Yellow tag 17,000 volts
AC Voltage Tag Colors Class 3 - Answer -Green tag 26,500 volts
AC Voltage Tag Colors Class 4 - Answer -Orange tag 36,000 volts
All 15/20-amp Receptacle outlets installed in bathroom of dwelling units should always? - Answer -
Require ground fault circuit interceptor
All conductors of a circuit must be installed in the same raceway to? - Answer -Minimize induction
heating
Alternating current changes directions at? - Answer -60Hz
Aluminum conduit should not be? - Answer -Buried in soil or concrete containing calcium chloride
Aluminum should not be used as? - Answer -Grounding electrodes
An acceptable method of identifying grounded conductors larger than NO. 6 AWG is by? - Answer -
Tagging or making them white
An electrical circuit at minimum contains a - Answer -Source, load, and switch
An electrical circuit is a complete path for - Answer -Current flow
An open circuit occurs in a wiring system when? - Answer -A conductor is broken or separated
Asbestos banned in 1978, you need to assume any building constructed before 1980 has -
Answer -Asbestos in it
Because the wall thickness of IMC is less than that of rigid conduit it is? - Answer -Often referred to
as a thin wall conduit
