NCATT AET ACTUAL EXAM PAPER 2026
QUESTIONS WITH ANSWERS GRADED A+
◉ Battery. Answer: • 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. Answer: • 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. Answer: • Common building block of electrical circuits
that easily permits the movement of 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. Answer: • Basic unit of electrical quantity.
,• A coulomb is equal to 6.28 billion - billion electrons (6.28 x 10 to the
18th)
◉ Current. Answer: • The flow of electrons through a conductor is
known as current flow.
• The rate of current flow is measured in amperes.
◉ Direct Current (DC). Answer: • 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. Answer: • 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.
◉ EMF (electromotive force). Answer: • 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. Answer: • Basic unit of capacitance
,• One farad holds one coulomb under a pressure of one volt.
◉ Henry (H). Answer: • 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. Answer: • Coil or other device used to introduce inductance
into a circuit.
• An inductor is a winding, or coiling, of multiple turns of wire
◉ Insulator. Answer: • Material or device used to prevent the passage of
heat, electricity, or sound from one medium to another.
◉ Left hand rule. Answer: • Refers to electrical
• This rule is for determining the direction of movement of a current -
carrying conductor in a magnetic field
◉ Magnetic Permeability. Answer: • Measure of ease that lines of flux
travel through a material
◉ Magnetism. Answer: • 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. Answer: • Measurements relating or using the metric
system of measurement
◉ Neutron. Answer: • Neutral subatomic particles that exist within the
nucleus of all atoms
• Neutrons are not involved in the conduction of electricity
◉ Ohm. Answer: • Unit of electrical opposition to the flow of current
• A circuit has one ohm of resistance when it limits the flow of current to
one amp under a voltage pressure of one volt
◉ Ohm's Law. Answer: • Ohm's Law states "the amount of current
flowing in a circuit is directly proportional to the circuit voltage and
inversely proportional to the circuit resistance"
• A plain language statement for Ohm's Law is; One volt causes one
ampere to flow through a resistance of one ohm.
◉ Proton. Answer: • Positively charged subatomic particles that exist
within the nucleus of all atoms
• Protons are not involved in the conduction of electricity
◉ Resistance (R). Answer: • Electrical characteristic of a conductor
QUESTIONS WITH ANSWERS GRADED A+
◉ Battery. Answer: • 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. Answer: • 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. Answer: • Common building block of electrical circuits
that easily permits the movement of 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. Answer: • Basic unit of electrical quantity.
,• A coulomb is equal to 6.28 billion - billion electrons (6.28 x 10 to the
18th)
◉ Current. Answer: • The flow of electrons through a conductor is
known as current flow.
• The rate of current flow is measured in amperes.
◉ Direct Current (DC). Answer: • 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. Answer: • 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.
◉ EMF (electromotive force). Answer: • 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. Answer: • Basic unit of capacitance
,• One farad holds one coulomb under a pressure of one volt.
◉ Henry (H). Answer: • 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. Answer: • Coil or other device used to introduce inductance
into a circuit.
• An inductor is a winding, or coiling, of multiple turns of wire
◉ Insulator. Answer: • Material or device used to prevent the passage of
heat, electricity, or sound from one medium to another.
◉ Left hand rule. Answer: • Refers to electrical
• This rule is for determining the direction of movement of a current -
carrying conductor in a magnetic field
◉ Magnetic Permeability. Answer: • Measure of ease that lines of flux
travel through a material
◉ Magnetism. Answer: • 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. Answer: • Measurements relating or using the metric
system of measurement
◉ Neutron. Answer: • Neutral subatomic particles that exist within the
nucleus of all atoms
• Neutrons are not involved in the conduction of electricity
◉ Ohm. Answer: • Unit of electrical opposition to the flow of current
• A circuit has one ohm of resistance when it limits the flow of current to
one amp under a voltage pressure of one volt
◉ Ohm's Law. Answer: • Ohm's Law states "the amount of current
flowing in a circuit is directly proportional to the circuit voltage and
inversely proportional to the circuit resistance"
• A plain language statement for Ohm's Law is; One volt causes one
ampere to flow through a resistance of one ohm.
◉ Proton. Answer: • Positively charged subatomic particles that exist
within the nucleus of all atoms
• Protons are not involved in the conduction of electricity
◉ Resistance (R). Answer: • Electrical characteristic of a conductor
