CBT Audio and Video Systems

Question 1

What is the primary function of a microphone in an audio system?

Accepted Answer

Convert sound into electrical signals

Answer

A microphone converts acoustic sound waves into electrical signals for further processing in an audio chain.

Question 2

Which video standard is primarily used in North America for analog broadcasting?

Accepted Answer

NTSC

Answer

NTSC (National Television System Committee) is the analog television standard traditionally used in North America.

Question 3

What is the role of an audio mixer in a studio environment?

Accepted Answer

Blend and route multiple audio signals

Answer

An audio mixer combines multiple audio inputs, adjusts levels, and routes audio to different outputs.

Question 4

Which connector is commonly used for professional analog audio?

Accepted Answer

XLR

Answer

The XLR connector is the standard for balanced analog audio in professional environments, offering noise rejection and secure connection.

Question 5

What does the term 'SDI' refer to in video systems?

Accepted Answer

Serial Digital Interface

Answer

SDI (Serial Digital Interface) is a digital video interface standard used to transmit uncompressed digital video signals over coaxial cable.

(CBT) Certified Broadcast Technician Practice Test