NCATT (AET) Exam Questions and
Answers (Most Recent Version, Complete
Study Material)
Ampere ( A, amp, amperage) - Correct Answers ✅• Unit of
measurement used to express the flow of electrons (electrical
current)
• One ampere is a rate of flow of one coulomb (6.28 billion -
billion electrons) passing a given point in an electrical circuit
per second
• In mathematical problems amperage is expressed by the
letter "I"
Battery - Correct Answers ✅• A device consisting of a
number of primary voltaic cells (cells that cannot be
recharged) or secondary cells (cells that can be recharged)
connected in series to obtain a desired DC voltage
• A battery stores chemical energy and converts the energy
into electrical form
• Aircraft storage batteries are generally rated at 12 or 24
volts
Capacitor - Correct Answers ✅• Electrical device used to
store charge and energy in the form of an electrostatic field
• A capacitor is a device made of two parallel conductors
separated by an insulator
Conductor - Correct Answers ✅• Common building block of
electrical circuits that easily permits the movement of
,NCATT (AET) Exam Questions and
Answers (Most Recent Version, Complete
Study Material)
electrons from an electrical source to a load and back to the
electrical source with a minimum of resistance.
• A conductor's resistance depends on such factors as cross
sectional area, length, temperature, and conductor material.
Coulomb - Correct Answers ✅• Basic unit of electrical
quantity.
• A coulomb is equal to 6.28 billion - billion electrons (6.28 x
10 to the 18th)
Current - Correct Answers ✅• The flow of electrons
through a conductor is known as current flow.
• The rate of current flow is measured in amperes.
Direct Current (DC) - Correct Answers ✅• A flow of
electrons in one direction throughout an electric circuit with
constant voltage and current.
• Direct current is caused by a constant difference of
potential, both negative and positive.
Electron - Correct Answers ✅• Negatively charged
subatomic particles that are located and travel around (orbit)
the nucleus in an imaginary sphere or shell at the speed of
light (186,000 miles/second)
• Electrons are involved in the conduction of electricity.
,NCATT (AET) Exam Questions and
Answers (Most Recent Version, Complete
Study Material)
EMF (electromotive force) - Correct Answers ✅• The force
that causes electrons to flow through a conductor.
• This force is abbreviated e.m.f.
• The unit of measurement for eletromotive force is the volt.
• In mathematical problems voltage is expressed by the letter
"E".
Farad - Correct Answers ✅• Basic unit of capacitance
• One farad holds one coulomb under a pressure of one volt.
Henry (H) - Correct Answers ✅• Basic unit of measurement
for inductance of an electrical coil
• One (1) henry is the inductance of a coil when a change of
current of one (1) ampere per second induces an e.m.f. of one
(1) volt
• In mathematical problems inductance is expressed by the
symbol "L".
Inductor - Correct Answers ✅• Coil or other device used to
introduce inductance into a circuit.
• An inductor is a winding, or coiling, of multiple turns of wire
, NCATT (AET) Exam Questions and
Answers (Most Recent Version, Complete
Study Material)
Insulator - Correct Answers ✅• Material or device used to
prevent the passage of heat, electricity, or sound from one
medium to another.
Left hand rule - Correct Answers ✅• Refers to electrical
• This rule is for determining the direction of movement of a
current - carrying conductor in a magnetic field
Magnetic Permeability - Correct Answers ✅• Measure of
ease that lines of flux travel through a material
Magnetism - Correct Answers ✅• Ability of a magnet to
attract certain materials containing iron and to influence
electrons
• Magnetism is the principle way to effectively produce AC
electricity
Metric Prefixes - Correct Answers ✅• Measurements
relating or using the metric system of measurement
Neutron - Correct Answers ✅• Neutral subatomic particles
that exist within the nucleus of all atoms
• Neutrons are not involved in the conduction of electricity
Answers (Most Recent Version, Complete
Study Material)
Ampere ( A, amp, amperage) - Correct Answers ✅• Unit of
measurement used to express the flow of electrons (electrical
current)
• One ampere is a rate of flow of one coulomb (6.28 billion -
billion electrons) passing a given point in an electrical circuit
per second
• In mathematical problems amperage is expressed by the
letter "I"
Battery - Correct Answers ✅• A device consisting of a
number of primary voltaic cells (cells that cannot be
recharged) or secondary cells (cells that can be recharged)
connected in series to obtain a desired DC voltage
• A battery stores chemical energy and converts the energy
into electrical form
• Aircraft storage batteries are generally rated at 12 or 24
volts
Capacitor - Correct Answers ✅• Electrical device used to
store charge and energy in the form of an electrostatic field
• A capacitor is a device made of two parallel conductors
separated by an insulator
Conductor - Correct Answers ✅• Common building block of
electrical circuits that easily permits the movement of
,NCATT (AET) Exam Questions and
Answers (Most Recent Version, Complete
Study Material)
electrons from an electrical source to a load and back to the
electrical source with a minimum of resistance.
• A conductor's resistance depends on such factors as cross
sectional area, length, temperature, and conductor material.
Coulomb - Correct Answers ✅• Basic unit of electrical
quantity.
• A coulomb is equal to 6.28 billion - billion electrons (6.28 x
10 to the 18th)
Current - Correct Answers ✅• The flow of electrons
through a conductor is known as current flow.
• The rate of current flow is measured in amperes.
Direct Current (DC) - Correct Answers ✅• A flow of
electrons in one direction throughout an electric circuit with
constant voltage and current.
• Direct current is caused by a constant difference of
potential, both negative and positive.
Electron - Correct Answers ✅• Negatively charged
subatomic particles that are located and travel around (orbit)
the nucleus in an imaginary sphere or shell at the speed of
light (186,000 miles/second)
• Electrons are involved in the conduction of electricity.
,NCATT (AET) Exam Questions and
Answers (Most Recent Version, Complete
Study Material)
EMF (electromotive force) - Correct Answers ✅• The force
that causes electrons to flow through a conductor.
• This force is abbreviated e.m.f.
• The unit of measurement for eletromotive force is the volt.
• In mathematical problems voltage is expressed by the letter
"E".
Farad - Correct Answers ✅• Basic unit of capacitance
• One farad holds one coulomb under a pressure of one volt.
Henry (H) - Correct Answers ✅• Basic unit of measurement
for inductance of an electrical coil
• One (1) henry is the inductance of a coil when a change of
current of one (1) ampere per second induces an e.m.f. of one
(1) volt
• In mathematical problems inductance is expressed by the
symbol "L".
Inductor - Correct Answers ✅• Coil or other device used to
introduce inductance into a circuit.
• An inductor is a winding, or coiling, of multiple turns of wire
, NCATT (AET) Exam Questions and
Answers (Most Recent Version, Complete
Study Material)
Insulator - Correct Answers ✅• Material or device used to
prevent the passage of heat, electricity, or sound from one
medium to another.
Left hand rule - Correct Answers ✅• Refers to electrical
• This rule is for determining the direction of movement of a
current - carrying conductor in a magnetic field
Magnetic Permeability - Correct Answers ✅• Measure of
ease that lines of flux travel through a material
Magnetism - Correct Answers ✅• Ability of a magnet to
attract certain materials containing iron and to influence
electrons
• Magnetism is the principle way to effectively produce AC
electricity
Metric Prefixes - Correct Answers ✅• Measurements
relating or using the metric system of measurement
Neutron - Correct Answers ✅• Neutral subatomic particles
that exist within the nucleus of all atoms
• Neutrons are not involved in the conduction of electricity
