Exam (elaborations)
NCTI INSTALLER PART 1 QUESTIONS WITH VERIFIED ANSWERS ALREADY GRADED A+
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NCTI INSTALLER PART 1 QUESTIONS WITH VERIFIED ANSWERS ALREADY GRADED A+
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gin
rs
nu
The orbital shell that has a
maximum capacity of 18
valence electrons is the
C
________ shell.
A First
B Second
C Third
D Fourth
A semiconductor material D
has ___ valence
electron(s)
A1
B2
C3
D4
The major factor in A
determining whether a
particular element is a
conductor, semiconductor,
or insulator is
A The number of electrons
in the valence shell
B The number of neutrons
in the nucleus
C The number of positrons
in the nucleus
D The number of electron
shells filled
Elements that are called B
conductors have
A No valence electrons
B Very few valence
electrons
, g
in
rs
C Half of the maximum
nu
capacity of valence
electrons
D Completely full valence
electrons
The term voltage usually D
refers to
A Indicates how many
coulombs pass a given
point during the 1 second
B The measurement of
electrical resistance
C The measurement of
electromotive force
D The measurement of the
difference in potential
between two charges
The ampere A
A Indicates how many
coulombs pass a given
point during the 1 second
B The measurement of
electrical resistance
C The measurement of
electromotive force
D The measurement of the
difference in potential
between two charges
Electrical current is actually B
produced by
A The transfer of energy
from positrons to valence
electrons as a result of
applied charges
B The transfer of energy
from valence electron to
valence electron as a result
of applied charges
C The transfer of energy
from positrons to positrons
as a result of withdrawn
charges
D The transfer of energy
from valence electron to
valence electron as a result
of withdrawn charges
What prevents the D
electrons that orbit an
atom's nucleus at high
speeds from breaking
away from the nucleus due
to centrifugal force?
A The repulsion between
the positive nucleus and
the negative electrons
B The repulsion between
, g
in
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the neutral nucleus and the
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negative electrons
C The attraction between
the neutral nucleus and the
negative electrons
D The attraction between
the positive nucleus and
the negative electrons
5 kilovolts is the same as B
A 50 kV
B 5 kV
C 0.5 mV
D 5 MV
To create an electromagnet D
A Wrap a coil of
uninsulated wire around an
iron bar and pass an
electric current through the
wire
B Wrap a coil of insulated
wire around a copper bar
and pass an electric
current through the wire
C Wrap a coil of
uninsulated wire around an
iron bar and pass an
electric current through the
wire
D Wrap a coil of insulated
wire around an iron bar
and pass an electric
current through the wire
Magnetism B
A Was discovered when
the Greeks noticed that
magnetite always aligned
itself in a west and east
direction
B Was discovered when
the Greeks noticed that
magnetite always aligned
itself in a north and south
direction
C Was discovered when
the Romans noticed that
magnetite always aligned
itself in a north and south
direction
D Was discovered when
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