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Total 150 questions
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Certified Technology Specialist – Design Questions and Answers

Question 1

What does a “signal-to-noise ratio” measure in an audio system?

Options:

A.

The power output of an amplifier

B.

The difference between desired audio signal and background noise

C.

The total cable length allowed

D.

The speaker impedance

Question 2

What is the main function of an audio crossover in speaker systems?

Options:

A.

To amplify signals

B.

To split audio signals into frequency bands for different drivers

C.

To connect microphones to mixers

D.

To convert digital audio to analog

Question 3

Which wireless frequency band is commonly used for AV equipment communication?

Options:

A.

2.4 GHz

B.

5 MHz

C.

10 GHz

D.

1 GHz

Question 4

What is the purpose of a “kick-off” meeting in an AV project?

Options:

A.

To finalize equipment installation

B.

To start project planning and align stakeholders

C.

To conduct system testing

D.

To train end users

Question 5

What is “PoE” in AV system design?

Options:

A.

Power over Ethernet, supplying power and data over a single cable

B.

Protocol over Ethernet

C.

Power only Ethernet

D.

Professional output equipment

Question 6

Which of the following is a benefit of using PoE (Power over Ethernet) for AV devices?

Options:

A.

Higher data rates

B.

Reduces the need for separate power supplies

C.

Improves audio quality

D.

Increases cable length

Question 7

Which cable type is best suited for transmitting high-definition video over long distances?

Options:

A.

HDMI

B.

Fiber optic

C.

RCA

D.

Cat5e

Question 8

Which of the following best describes “latency” in AV signal processing?

Options:

A.

The delay between input and output of a signal

B.

The signal strength

C.

The cable length

D.

The power consumption

Question 9

Which of the following best describes “project scope”?

Options:

A.

The total work required to complete a project

B.

The project budget only

C.

The schedule only

D.

The list of equipment brands

Question 10

What is a common method to reduce electrical noise in AV systems?

Options:

A.

Ground loops

B.

Proper grounding and shielding

C.

Increasing cable length

D.

Using unshielded cables

Question 11

What does the term “commissioning” mean in AV system projects?

Options:

A.

System testing, verification, and adjustment before handover

B.

Installation of cables

C.

Writing user manuals

D.

User training

Question 12

Which of the following is a primary function of a DSP in an AV system?

Options:

A.

Signal amplification

B.

Signal processing including filtering, mixing, and delay

C.

Power supply regulation

D.

Signal distribution

Question 13

What is the key difference between HDMI and DisplayPort?

Options:

A.

HDMI supports audio, DisplayPort does not

B.

DisplayPort generally supports higher resolutions and refresh rates

C.

HDMI is used only for audio

D.

DisplayPort is wireless

Question 14

What is the role of “project management” in AV system design?

Options:

A.

Purchasing equipment

B.

Planning, organizing, and managing resources to complete the project on time and within budget

C.

Installing cables

D.

Training end users

Question 15

Which type of signal transmission is least susceptible to electromagnetic interference?

Options:

A.

Analog audio over unshielded cable

B.

Digital video over fiber optic cable

C.

Analog video over coaxial cable

D.

Balanced audio over shielded cable

Question 16

What is the term for the space above a suspended ceiling used for air circulation and cable routing?

Options:

A.

Plenum

B.

Crawl space

C.

Attic

D.

Ductwork

Question 17

Which of the following best describes “signal latency”?

Options:

A.

Delay between input and output in AV systems

B.

Signal strength

C.

Cable length

D.

Frequency response

Question 18

What is the primary purpose of an AV system design document?

Options:

A.

To outline the physical installation process

B.

To specify the budget and timeline only

C.

To communicate system requirements and specifications to all stakeholders

D.

To provide user training instructions

Question 19

Which wireless frequency band is commonly used for video transmission in AV systems?

Options:

A.

900 MHz

B.

2.4 GHz and 5 GHz

C.

60 MHz

D.

700 MHz

Question 20

What does the acronym “DSP” stand for in AV systems?

Options:

A.

Digital Signal Processor

B.

Direct Sound Projection

C.

Digital Speaker Power

D.

Dynamic Signal Path

Question 21

Which of the following best describes “gain structure” in audio system design?

Options:

A.

The ratio of input to output voltage throughout the signal chain to avoid distortion

B.

The physical size of an amplifier

C.

The number of microphones in a system

D.

The type of speakers used

Question 22

Which wiring method is recommended for avoiding electromagnetic interference in AV installations?

Options:

A.

Running audio cables parallel to power cables

B.

Using shielded twisted pair cables and maintaining separation from power lines

C.

Using unshielded cables only

D.

Increasing cable length

Question 23

Which document outlines the detailed responsibilities, schedule, and deliverables in an AV project?

Options:

A.

Project management plan

B.

User manual

C.

Equipment datasheet

D.

Installation guide

Question 24

What is the primary purpose of a “block diagram” in AV design?

Options:

A.

To show high-level signal flow and system components

B.

To detail cable terminations

C.

To specify budget details

D.

To define user roles

Question 25

Which of the following best describes “balanced audio”?

Options:

A.

Audio transmitted using two conductors and a shield to reduce noise

B.

Audio transmitted using a single conductor

C.

Audio transmitted over wireless only

D.

Audio without volume control

Question 26

Which of the following best describes an “amplifier” in an audio system?

Options:

A.

Device that converts analog signals to digital

B.

Device that increases the power of audio signals to drive speakers

C.

Device that mixes audio signals

D.

Device that switches video signals

Question 27

Which standard specifies the color coding for balanced audio connectors?

Options:

A.

AES3

B.

RS-232

C.

XLR pinout standards

D.

HDMI

Question 28

What is the primary role of a “mixer” in an audio system?

Options:

A.

To amplify signals

B.

To combine multiple audio inputs into one or more outputs

C.

To convert audio to digital format

D.

To route video signals

Question 29

Which of the following is an example of an AV industry trade organization?

Options:

A.

AVIXA

B.

IEEE

C.

OSHA

D.

FCC

Question 30

When specifying loudspeakers for a large auditorium, which characteristic is most important?

Options:

A.

Color of the speaker enclosure

B.

Power handling and dispersion pattern

C.

Weight of the speaker

D.

Brand name

Question 31

What is the primary advantage of using HDMI over VGA for video signals?

Options:

A.

HDMI supports digital signals and audio transmission, VGA does not

B.

VGA supports higher resolutions

C.

HDMI is cheaper

D.

VGA supports digital audio

Question 32

What is a common method to reduce audio feedback?

Options:

A.

Increasing microphone gain

B.

Using equalization to notch out feedback frequencies

C.

Placing microphones closer to speakers

D.

Adding more amplifiers

Question 33

Which type of projector placement is best for minimizing shadows on the screen?

Options:

A.

Rear projection

B.

Ceiling-mounted front projection

C.

Tabletop front projection

D.

Floor projection

Question 34

Which of the following best defines “gain before feedback”?

Options:

A.

The amplification level before unwanted feedback occurs in an audio system

B.

The maximum power output of a speaker

C.

The signal delay in a system

D.

The resolution of a video display

Question 35

Which of the following is a key consideration when designing a room for video conferencing?

Options:

A.

The type of ceiling tiles used

B.

Ambient lighting and acoustics

C.

The color of furniture

D.

Number of electrical outlets in the server room

Question 36

Which technology is commonly used for transmitting uncompressed digital video over long distances?

Options:

A.

HDMI

B.

HDBaseT

C.

VGA

D.

Composite video

Question 37

Which of the following is an example of an AV control protocol?

Options:

A.

RS-232

B.

HTTP

C.

FTP

D.

SMTP

Question 38

What is the main advantage of using fiber optic cables for AV signal transmission?

Options:

A.

Lower cost

B.

High bandwidth and immunity to electromagnetic interference

C.

Easier termination

D.

Smaller connectors

Question 39

Which of the following best describes a “DSP” device?

Options:

A.

Audio amplifier

B.

Digital Signal Processor for audio/video manipulation

C.

Display screen

D.

Power supply

Question 40

What does the term “fire rating” refer to in AV system materials?

Options:

A.

Resistance to heat and flame spread

B.

Resistance to water damage

C.

Durability under mechanical stress

D.

Electrical conductivity

Question 41

Which document outlines client requirements, goals, and system expectations?

Options:

A.

Needs analysis report

B.

Equipment list

C.

Installation manual

D.

Project charter

Question 42

What does the term “gain before feedback” refer to in audio system design?

Options:

A.

The maximum volume before distortion occurs

B.

The maximum amplification before the system produces feedback noise

C.

The increase in amplifier power over time

D.

The difference between input and output signal strength

Question 43

Which of the following is a common cause of video signal degradation?

Options:

A.

Using shielded cables

B.

Cable length exceeding specifications

C.

Using digital signals

D.

Proper grounding

Question 44

Which of the following is the most appropriate cable type for connecting a microphone to a mixing console?

Options:

A.

HDMI

B.

XLR

C.

RCA

D.

USB

Question 45

In AV design, what is the primary advantage of using fiber optic cables over copper?

Options:

A.

Lower cost

B.

Immunity to electromagnetic interference and longer transmission distances

C.

Easier termination

D.

Higher weight

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