Chapter 7: Signal Management Systems

Question 1

Which of the following is NOT a primary category of signals in AV systems?

Answer 1

c) Mechanical

Question 2

What is the primary function of insulation in a cable?

Answer 2

b) To prevent short circuits and signal interference

Question 3

A single conductor encased in protective insulation is best described as a:

Answer 3

b) Wire

Question 4

Which type of conductor offers greater flexibility?

Answer 4

b) Stranded conductor

Question 5

What type of shielding provides the highest level of protection against EMI?

Answer 5

c) Combination shielding (foil and braid)

Question 6

Which material is known for its flexibility and heat resistance, making it suitable for high-temperature environments?

Answer 6

c) Silicone

Question 7

The outer layer of a cable that protects against physical damage is called:

Answer 7

c) Jacketing

Question 8

Which cable type is commonly used for video signals?

Answer 8

c) Coaxial cable

Question 9

Which connector type is frequently used in audio devices for signal transport?

Answer 9

b) 6.5mm (1/4-inch) phone

Question 10

Which connector is typically used for serial communication?

Answer 10

b) DB9

Question 11

What connector is used for connecting amplifiers to loudspeakers in professional audio?

Answer 11

c) Speakon (NL4)

Question 12

Which connector carries high-definition video and audio signals?

Answer 12

c) HDMI

Question 13

Which connector is used for networking and data communication?

Answer 13

c) RJ-45

Question 14

What does EMI stand for?

Answer 14

a) Electromagnetic Interference

Question 15

What is the standard width of an AV rack?

Answer 15

c) 19 inches

Question 16

What unit is used to measure equipment height in an AV rack?

Answer 16

d) Rack Units (RU)

Question 17

What is the primary function of a distribution amplifier?

Answer 17

b) To boost a signal for distribution to multiple outputs

Question 18

A matrix switcher allows for:

Answer 18

b) Simultaneous connection of multiple inputs to multiple outputs

Question 19

What is signal integrity?

Answer 19

b) The quality and reliability of a transmitted signal

Question 20

What is a major factor influencing the reliable distance a signal can travel?

Answer 20

b) Cable loss

Question 21

Which cable type is ideal for high-speed data transmission with minimal signal loss?

Answer 21

c) Fiber-optic cable

Question 22

Twisted-pair cables are commonly used for:

Answer 22

c) Data networking and audio

Question 23

The F-type connector is commonly found in:

Answer 23

c) Televisions and antennas

Question 24

RCA connectors are used for:

Answer 24

c) Unbalanced video and audio signals

Question 25

What is a critical consideration when building an AV rack?

Answer 25

b) Heat dissipation

Question 26

What type of connector is also known as a Euroblock or Phoenix connector?

Answer 26

c) Captive screw

Question 27

Which connector is used for digital and analog video signals?

Answer 27

c) DVI

Question 28

HD15 (VGA) connectors are used for:

Answer 28

b) Analog video connections

Question 29

What does PTFE (Teflon) offer as an insulation material?

Answer 29

c) High dielectric strength and chemical resistance

Question 30

Which type of shielding uses woven strands of wire?

Answer 30

b) Braided shielding

Question 31

What is a key advantage of combination shielding?

Answer 31

b) Enhanced flexibility and protection

Question 32

Why are UV-resistant jackets necessary for certain cables?

Answer 32

c) To withstand sunlight exposure

Question 33

Which aspect of cable jacketing contributes to meeting electrical safety codes?

Answer 33

c) Flammability and emissions

Question 34

What is the primary purpose of effective cable management?

Answer 34

b) To minimize interference and improve signal integrity.

Question 35

What is a key difference between a switcher and a distribution amplifier?

Answer 35

b) Switchers route signals, while distribution amplifiers amplify signals.