Installer Technician Conventional
Exam Questions and Answers 100%
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Which orbital shell has a maximum electron capacity of 18 electrons? - ✔✔Third
Why are semiconductor materials not good conductors nor good insulators? -
✔✔Valance shells are only half filled
What best describes a conductor? - ✔✔Elements that have a small number of electrons
in the valence shell.
Which of the following best describes the relationship between an ampere and a
coulomb? - ✔✔The number of amperes is equivalent to the number of coulombs passing
a given point during one second.
How is electric current produced? - ✔✔From the transfer of energy from valence
electron to valence electron because of applied charges.
What prevents the electrons that orbit an atom's nucleus at high speeds from breaking
away from the nucleus due to centrifugal force? - ✔✔The attraction between the
positive nucleus and the negative electron.
Elements without the production or movement of free electrons are considered? -
✔✔Insulators
COPYRIGHT © 2025 BY BRITTIE DONALD, ALL RIGHTS RESERVED 1
,What best describes the type of electron flow called random drift? - ✔✔Electrons
moving randomly because of competing continuous negative/positive charges.
What is the effective speed of electric current? - ✔✔186,000 miles per second.
An atom is__________when an equal number of its electrons are spinning in opposite
directions, causing the cancellation of all the magnetic fields. - ✔✔non-magnetic
When exploring the Earth's magnetism, scientists realized that the geographic and the
magnetic poles in each hemisphere were
________________________________________________. - ✔✔not quite in the same
location.
____________ soon became known as a leading stone or lodestone and was used as the
first compass for navigation. - ✔✔Magnetite
Small groups of magnetic atoms which tend to form tiny permanent magnets. -
✔✔Magnetic Domains
The magnetic fields between two closely spaced ____________ wires conducting current
interact with each other in the same way that fields of _______________ magnets
interact. - ✔✔parallel, permanent
The _____________ of the mmf determines the strength of the field and the number of
lines of flux in the field. - ✔✔megnitude
Electromagnet - ✔✔a temporary magnet that is made by applying a potential difference
to a wire that is wrapped around a core of magnetic material.
Does the magnetic field around a wire that is conducting current become stronger or
weaker as the distance from the wire increases? - ✔✔weaker because the flux lines are
further apart
COPYRIGHT © 2025 BY BRITTIE DONALD, ALL RIGHTS RESERVED 2
, How do the magnetic fields between two closely spaced parallel wires that are
conducting current interact with each other if the current flow in both wires is in the
same direction? - ✔✔They will add together because the flux lines will go in the same
direction, forming loops around the wires. The flux lines will attract one another,
causing the wires to draw together.
Why is the overall magnetic field created by forming loops of wire stronger - ✔✔flux
lines are concentrated in the center or core of the loops.
Loudspeaker - ✔✔The first magnetic field on this device is a strong, nonmoving
magnetic field generated by a permanent magnet. The second magnetic field results
from the application of current generated by a sound wave to a small coil of wire,
known as the voice coil.
Analog Meter - ✔✔This device uses electromagnetic effects to measure the amount of
current in a wire or circuit.
Reed Relay - ✔✔Under normal conditions the contacts on these devices are in an open
position, not touching each other. But in the presence of a magnetic field the contacts
close, thus functioning as a switch.
The amount and direction of rotation of the needle pointer in a D'Arsonval meter
movement are _______________ to the amount and direction of the applied current. -
✔✔proportional
What is another way to create an electromagnet besides stroking a piece of magnetic
metal, such as a piece of iron with another magnet? - ✔✔Wrap a coil of insulated wire
around an iron bar and pass an electric current through the wire.
What is true about magnetism? - ✔✔Magnetism was discovered when the Greeks
noticed that certain stones attract iron.
COPYRIGHT © 2025 BY BRITTIE DONALD, ALL RIGHTS RESERVED 3
Exam Questions and Answers 100%
Pass
Which orbital shell has a maximum electron capacity of 18 electrons? - ✔✔Third
Why are semiconductor materials not good conductors nor good insulators? -
✔✔Valance shells are only half filled
What best describes a conductor? - ✔✔Elements that have a small number of electrons
in the valence shell.
Which of the following best describes the relationship between an ampere and a
coulomb? - ✔✔The number of amperes is equivalent to the number of coulombs passing
a given point during one second.
How is electric current produced? - ✔✔From the transfer of energy from valence
electron to valence electron because of applied charges.
What prevents the electrons that orbit an atom's nucleus at high speeds from breaking
away from the nucleus due to centrifugal force? - ✔✔The attraction between the
positive nucleus and the negative electron.
Elements without the production or movement of free electrons are considered? -
✔✔Insulators
COPYRIGHT © 2025 BY BRITTIE DONALD, ALL RIGHTS RESERVED 1
,What best describes the type of electron flow called random drift? - ✔✔Electrons
moving randomly because of competing continuous negative/positive charges.
What is the effective speed of electric current? - ✔✔186,000 miles per second.
An atom is__________when an equal number of its electrons are spinning in opposite
directions, causing the cancellation of all the magnetic fields. - ✔✔non-magnetic
When exploring the Earth's magnetism, scientists realized that the geographic and the
magnetic poles in each hemisphere were
________________________________________________. - ✔✔not quite in the same
location.
____________ soon became known as a leading stone or lodestone and was used as the
first compass for navigation. - ✔✔Magnetite
Small groups of magnetic atoms which tend to form tiny permanent magnets. -
✔✔Magnetic Domains
The magnetic fields between two closely spaced ____________ wires conducting current
interact with each other in the same way that fields of _______________ magnets
interact. - ✔✔parallel, permanent
The _____________ of the mmf determines the strength of the field and the number of
lines of flux in the field. - ✔✔megnitude
Electromagnet - ✔✔a temporary magnet that is made by applying a potential difference
to a wire that is wrapped around a core of magnetic material.
Does the magnetic field around a wire that is conducting current become stronger or
weaker as the distance from the wire increases? - ✔✔weaker because the flux lines are
further apart
COPYRIGHT © 2025 BY BRITTIE DONALD, ALL RIGHTS RESERVED 2
, How do the magnetic fields between two closely spaced parallel wires that are
conducting current interact with each other if the current flow in both wires is in the
same direction? - ✔✔They will add together because the flux lines will go in the same
direction, forming loops around the wires. The flux lines will attract one another,
causing the wires to draw together.
Why is the overall magnetic field created by forming loops of wire stronger - ✔✔flux
lines are concentrated in the center or core of the loops.
Loudspeaker - ✔✔The first magnetic field on this device is a strong, nonmoving
magnetic field generated by a permanent magnet. The second magnetic field results
from the application of current generated by a sound wave to a small coil of wire,
known as the voice coil.
Analog Meter - ✔✔This device uses electromagnetic effects to measure the amount of
current in a wire or circuit.
Reed Relay - ✔✔Under normal conditions the contacts on these devices are in an open
position, not touching each other. But in the presence of a magnetic field the contacts
close, thus functioning as a switch.
The amount and direction of rotation of the needle pointer in a D'Arsonval meter
movement are _______________ to the amount and direction of the applied current. -
✔✔proportional
What is another way to create an electromagnet besides stroking a piece of magnetic
metal, such as a piece of iron with another magnet? - ✔✔Wrap a coil of insulated wire
around an iron bar and pass an electric current through the wire.
What is true about magnetism? - ✔✔Magnetism was discovered when the Greeks
noticed that certain stones attract iron.
COPYRIGHT © 2025 BY BRITTIE DONALD, ALL RIGHTS RESERVED 3
