3-9.
Maximum transfer of energy from
the source to the transmission
line takes place when what
impedance relationship exists
between the source and the
transmission line?
1.
When the load impedance
equals the source impedance
2.
When the load impedance is
twice the source impedance
3.
When the load impedance is
half the source impedance
4.
When the load impedance is
one-fourth the source
impedance
3-10.
Which of the following sets of
terms represents a type of loss
in a transmission line?
1.
I2R and induction only
2.
Induction and dielectric
only
3.
Dielectric and radiation
only
4. I2R ,
induction, and
dielectric
3-11.
Skin effect is classified as
which of the following types of
loss?
1.
Copper
2.
Voltage
3.
Induction
4.
Dielectric
3-12.
What transmission-line loss is
caused by magnetic lines of
force not returning to the
conductor?
1.
Copper
2.
Radiation
3.
Induction
4.
Dielectric
3-13.
When a dc voltage is applied to
a transmission line and the
load absorbs all the energy,
what is the resulting
relationship between current
and voltage?
1.
They are in phase with each
other
2.
They are equal to ZO of the
line
3.
They are out of phase with
each other
4.
They are evenly distributed
along the line
3-14.
The initial waves that travel
from the generator to the load
of a transmission line are
referred to as what type of
waves?
1.
Incident
2.
Refracted
3.
Reflected
4.
Diffracted
3-15.
Waves that travel from the
output end to the input end of
a transmission line are
referred to as what type of
waves?
1.
Incident
2.
Refracted
3.
Reflected
4.
Diffracted
3-16.
The ratio of maximum voltage to
minimum voltage on a
transmission line is referred
to as the
1.
rswr
2.
pswr
3.
vswr
4.
iswr
3-17.
Which of the following ratios
samples the magnetic field
along a line?
1.
Vswr
2.
Pswr
3.
Iswr
4.
Rswr
3-18.
Which of the following lines is
NOT a transmission medium?
1.
Load line
2.
Coaxial line
3.
Two-wire open line
4.
Twisted-pair line
3-19.
Electrical power lines are most
often made of which of the
following types of transmission
lines?
1.
Twin-lead line
2.
Shielded-pair line
3.
Two–wire open line
4.
Two–wire ribbon line
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