NCTI Installer Technician Exam
20 milliamperes is the same as ________. (Remember, 1 0.02 amperes
milliampere = 0.001 ampere.)
The orbital shell that has a maximum electron capacity of Third
18 electrons is the ___________ shell.
A semiconductor material Has four valence electrons.
The major factor for determining whether a particular The number of electrons in the valence shell.
element is a conductor, a semiconductor, or an insulator is
Elements that are called conductors Have very few valence electrons.
The term voltage normally refers to The measurement of the difference in potential between two charges.
The ampere Indicates how many coulombs pass a given point during 1 second.
Electric current is actually produced by The transfer of energy from valence electron to valence electron as a result of
applied charges.
What prevents the electrons that orbit an atom's nucleus at The attraction between the positive nucleus and the negative electron.
high speeds from breaking away from the nucleus due to
centrifugal force?
5 kilovolts is the same as 5 kV.
To create an electromagnet, Wrap a coil of insulated wire around an iron bar and pass an electric current through
the wire.
Magnetism Was discovered when the Greeks noticed that magnetite always aligned itself in a
north and south direction.
In a magnetic material, Where only some of the magnetic domains are pointing in the same direction, the
magnetic field is weaker.
The strength of an electromagnetic field is Determined by the magnitude of the magnetomotive force (mmf).
The magnetic field Created by a straight piece of wire is weaker than that created by forming loops of
wire.
, NCTI Installer Technician Exam
Flux lines Always curve around through the body of the magnet to form complete loops.
Magnetic poles that are ___________ will ____________ Alike, repel
each other when those poles are near each other.
A permanent-magnet loudspeaker Has a cone that moves back and forth in relation to the varying current of the
original sound.
The left-hand rule for electromagnetism in a wire states If you wrap the fingers of your left hand around the wire with your thumb pointing in
that the direction of the current flow, your fingers will be wrapped in the direction of the
magnetic field.
The recording head of a tape recorder is actually a(an) Electromagnet.
(-25) + (42) + (-62) + (20) = -25
(-17) - (-34) = 17
(17) x (-19) = -323
-49/-7 = 7
(20) / (-4) + (-2) x (-10) - (-2) x (7) = 29
3 6/9 + 6 1/3 + 9 5/9 = 19 5/9
4/7 x 9 4/11 = 5 27/77
7 3/8 divided by 7 1/4 = 1 1/58
13 X 0.123 = 0.99999
0.5349 divided by 0.1420 = 3.7669014
20 milliamperes is the same as ________. (Remember, 1 0.02 amperes
milliampere = 0.001 ampere.)
The orbital shell that has a maximum electron capacity of Third
18 electrons is the ___________ shell.
A semiconductor material Has four valence electrons.
The major factor for determining whether a particular The number of electrons in the valence shell.
element is a conductor, a semiconductor, or an insulator is
Elements that are called conductors Have very few valence electrons.
The term voltage normally refers to The measurement of the difference in potential between two charges.
The ampere Indicates how many coulombs pass a given point during 1 second.
Electric current is actually produced by The transfer of energy from valence electron to valence electron as a result of
applied charges.
What prevents the electrons that orbit an atom's nucleus at The attraction between the positive nucleus and the negative electron.
high speeds from breaking away from the nucleus due to
centrifugal force?
5 kilovolts is the same as 5 kV.
To create an electromagnet, Wrap a coil of insulated wire around an iron bar and pass an electric current through
the wire.
Magnetism Was discovered when the Greeks noticed that magnetite always aligned itself in a
north and south direction.
In a magnetic material, Where only some of the magnetic domains are pointing in the same direction, the
magnetic field is weaker.
The strength of an electromagnetic field is Determined by the magnitude of the magnetomotive force (mmf).
The magnetic field Created by a straight piece of wire is weaker than that created by forming loops of
wire.
, NCTI Installer Technician Exam
Flux lines Always curve around through the body of the magnet to form complete loops.
Magnetic poles that are ___________ will ____________ Alike, repel
each other when those poles are near each other.
A permanent-magnet loudspeaker Has a cone that moves back and forth in relation to the varying current of the
original sound.
The left-hand rule for electromagnetism in a wire states If you wrap the fingers of your left hand around the wire with your thumb pointing in
that the direction of the current flow, your fingers will be wrapped in the direction of the
magnetic field.
The recording head of a tape recorder is actually a(an) Electromagnet.
(-25) + (42) + (-62) + (20) = -25
(-17) - (-34) = 17
(17) x (-19) = -323
-49/-7 = 7
(20) / (-4) + (-2) x (-10) - (-2) x (7) = 29
3 6/9 + 6 1/3 + 9 5/9 = 19 5/9
4/7 x 9 4/11 = 5 27/77
7 3/8 divided by 7 1/4 = 1 1/58
13 X 0.123 = 0.99999
0.5349 divided by 0.1420 = 3.7669014
