NCCER STUDY GUIDE EXAM
QUESTIONS AND ANSWERS
When is nonmetallic-steathed cable used - Answer-In a residential wiring system
Phases of residential electrical wiring include - Answer-Rough in, Trim out, Testing and
Troubleshooting
What two groups are industrial electricians split into - Answer-Installers and
maintenance personal
How many hours of on job learning are required for an apprenticeship program each
year - Answer-2,000 hours
AC Voltage Tag Colors Class 00 - Answer-Beige tag 500 volts
AC Voltage Tag Colors Class 0 - Answer-Red tag 1,000 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
Replacing fuses is an important use of - Answer-A hot stick
Asbestos banned in 1978, you need to assume any building constructed before 1980
has - Answer-Asbestos in it
How many watts does one Horsepower have - Answer-746 watts
An electrical circuit at minimum contains a - Answer-Source, load, and switch
Proton is the type of sub-atom particle with a - Answer-Positive charge
EMF is another term used for - Answer-Voltage
Electric charge is measured in - Answer-Coulombs
I=E/R (current) = (voltage) / (resistance) - Answer-the current in a circuit equals the
voltage difference divided by the resistance
, R=E/I (resistance) = (voltage) / (current) - Answer-The resistance of a circuit is equal to
the voltage applied to the circuit divided by the current in a circuit
E=IxR=IR (voltage)= (current)x(resistance) - Answer-The applied voltage to a circuit is
equal to the product of the current and the resistance of the circuit
The fourth band on a resistor represents - Answer-Tolerance
Clamp-on amp meter is used to - Answer-Measure electrical current
Current measured in amperes - Answer-Is the flow of electrons in a circuit
One volt is the potential difference between two points for which one coulomb of
electricity will do one _______ of work. - Answer-Joule
Voltage is measured with a - Answer-voltmeter
One volt applied across one ohm of resistance causes a current flow of one _______. -
Answer-ampere
Ewald is the force required to produce a current of one ampere through a resistance of -
Answer-1 ohm
What do Coulombs measure? - Answer-electric charge
Electrons is the driving force that makes current flow in a - Answer-Circuit
Watts is the basic unit of measurement for - Answer-Electrical power
The proton is the smallest particle of an element that will still retain the - Answer-
Properties of that element
The nucleus is the center of an - Answer-Atom
What are protons and neutrons - Answer-Electrically positive and neutral particles
What is an electron? - Answer-Negatively charged particle that orbits the nucleus of an
atom
Matter is any substance that has mass and - Answer-occupies space
1 kilowatt (kw) is the suffix for - Answer-1,000 watts
One megawatt (mw) is the suffix for - Answer-1 million watts
QUESTIONS AND ANSWERS
When is nonmetallic-steathed cable used - Answer-In a residential wiring system
Phases of residential electrical wiring include - Answer-Rough in, Trim out, Testing and
Troubleshooting
What two groups are industrial electricians split into - Answer-Installers and
maintenance personal
How many hours of on job learning are required for an apprenticeship program each
year - Answer-2,000 hours
AC Voltage Tag Colors Class 00 - Answer-Beige tag 500 volts
AC Voltage Tag Colors Class 0 - Answer-Red tag 1,000 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
Replacing fuses is an important use of - Answer-A hot stick
Asbestos banned in 1978, you need to assume any building constructed before 1980
has - Answer-Asbestos in it
How many watts does one Horsepower have - Answer-746 watts
An electrical circuit at minimum contains a - Answer-Source, load, and switch
Proton is the type of sub-atom particle with a - Answer-Positive charge
EMF is another term used for - Answer-Voltage
Electric charge is measured in - Answer-Coulombs
I=E/R (current) = (voltage) / (resistance) - Answer-the current in a circuit equals the
voltage difference divided by the resistance
, R=E/I (resistance) = (voltage) / (current) - Answer-The resistance of a circuit is equal to
the voltage applied to the circuit divided by the current in a circuit
E=IxR=IR (voltage)= (current)x(resistance) - Answer-The applied voltage to a circuit is
equal to the product of the current and the resistance of the circuit
The fourth band on a resistor represents - Answer-Tolerance
Clamp-on amp meter is used to - Answer-Measure electrical current
Current measured in amperes - Answer-Is the flow of electrons in a circuit
One volt is the potential difference between two points for which one coulomb of
electricity will do one _______ of work. - Answer-Joule
Voltage is measured with a - Answer-voltmeter
One volt applied across one ohm of resistance causes a current flow of one _______. -
Answer-ampere
Ewald is the force required to produce a current of one ampere through a resistance of -
Answer-1 ohm
What do Coulombs measure? - Answer-electric charge
Electrons is the driving force that makes current flow in a - Answer-Circuit
Watts is the basic unit of measurement for - Answer-Electrical power
The proton is the smallest particle of an element that will still retain the - Answer-
Properties of that element
The nucleus is the center of an - Answer-Atom
What are protons and neutrons - Answer-Electrically positive and neutral particles
What is an electron? - Answer-Negatively charged particle that orbits the nucleus of an
atom
Matter is any substance that has mass and - Answer-occupies space
1 kilowatt (kw) is the suffix for - Answer-1,000 watts
One megawatt (mw) is the suffix for - Answer-1 million watts
