AVIXA AV Infrastructure: Essentials Exam Questions with Correct Solutions|
Latest Update Graded A+
a single center conductor; video signal connections Coaxial cables have _____ and are
primarily used for _____.
transparent glass conductors; light and energy transmissions
twisted wires; video signal connections
a single center conductor; video signal connections
a single center conductor; light and energy transmissions
prevent physical contact between multiple conductors One of the primary purposes of
insulation is to _____.
store electrical charges
regulate the temperature of the conductors
protect against bursts of voltage through the conductors
prevent physical contact between multiple conductors
can connect any of 4 inputs to any or both of 2 outputs A 4X2 matrix switcher _____.
can connect any of 4 inputs to any or both of 2 outputs
has effectively 8 outputs
must only have one output connected at any given time
can connect any of 2 inputs to any or both of 4 outputs
the signal management system Effective transfer of a signal is the purpose of _____.
the AV system
signal flow
the signal management system
cable and wire control
,19 inches, 21 to 25 inches The inside of a typical AV rack is _____ wide, while the outside
varies from _____.
25 inches, 19 to 21 inches
19 inches, 21 to 25 inches
1 foot, 2 to 7 feet
21 inches, 19 to 25 inches
foil and braided shielding Combination shielding uses _____.
a ground wire
foil shielding only
foil and braided shielding
multiconductors
allow the user to select one input from a number of inputs Switchers _____.
connect multiple inputs simultaneously to one output
must have power to operate
allow the user to select one input from a number of inputs
mix different inputs to a signal output
noise The purpose of shielding is to prevent _____ from mixing with the signal.
insulation
jackets
noise
conductors
analog Unless amplified, digital signals generally do not travel as far as _____ signals.
wireless
, analog
cable
fiber
PVC Wire insulation is typically made of materials such as _____.
PVC
PPM
Titanium
Copper
protects and organizes An AV rack is a housing unit that _____ electronic equipment.
protects and organizes
elevates
identifies
cools
calculate phase differences between signals in order to avoid cancellation The main function
of a diversity receiver is to _____.
calculate phase differences between signals in order to avoid cancellation
find incident and reflected signals that arrive in phase
amplify echoes so that the main signal is strengthened
eliminate multi-path signals that come from the transmitter
a modulator, a combiner, and a splitter Which of the following lists contains commonly
found RF video system components?
a tap, a splitter, and an antenna
line amplifiers, demodulators, and coaxial cables
a modulator, a tap, and a redistributor
Latest Update Graded A+
a single center conductor; video signal connections Coaxial cables have _____ and are
primarily used for _____.
transparent glass conductors; light and energy transmissions
twisted wires; video signal connections
a single center conductor; video signal connections
a single center conductor; light and energy transmissions
prevent physical contact between multiple conductors One of the primary purposes of
insulation is to _____.
store electrical charges
regulate the temperature of the conductors
protect against bursts of voltage through the conductors
prevent physical contact between multiple conductors
can connect any of 4 inputs to any or both of 2 outputs A 4X2 matrix switcher _____.
can connect any of 4 inputs to any or both of 2 outputs
has effectively 8 outputs
must only have one output connected at any given time
can connect any of 2 inputs to any or both of 4 outputs
the signal management system Effective transfer of a signal is the purpose of _____.
the AV system
signal flow
the signal management system
cable and wire control
,19 inches, 21 to 25 inches The inside of a typical AV rack is _____ wide, while the outside
varies from _____.
25 inches, 19 to 21 inches
19 inches, 21 to 25 inches
1 foot, 2 to 7 feet
21 inches, 19 to 25 inches
foil and braided shielding Combination shielding uses _____.
a ground wire
foil shielding only
foil and braided shielding
multiconductors
allow the user to select one input from a number of inputs Switchers _____.
connect multiple inputs simultaneously to one output
must have power to operate
allow the user to select one input from a number of inputs
mix different inputs to a signal output
noise The purpose of shielding is to prevent _____ from mixing with the signal.
insulation
jackets
noise
conductors
analog Unless amplified, digital signals generally do not travel as far as _____ signals.
wireless
, analog
cable
fiber
PVC Wire insulation is typically made of materials such as _____.
PVC
PPM
Titanium
Copper
protects and organizes An AV rack is a housing unit that _____ electronic equipment.
protects and organizes
elevates
identifies
cools
calculate phase differences between signals in order to avoid cancellation The main function
of a diversity receiver is to _____.
calculate phase differences between signals in order to avoid cancellation
find incident and reflected signals that arrive in phase
amplify echoes so that the main signal is strengthened
eliminate multi-path signals that come from the transmitter
a modulator, a combiner, and a splitter Which of the following lists contains commonly
found RF video system components?
a tap, a splitter, and an antenna
line amplifiers, demodulators, and coaxial cables
a modulator, a tap, and a redistributor
