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There are three loudspeakers wired in parallel, and each loudspeaker's impedance is 8 ohms. Calculate the impedance of this circuit.

A.

4 ohms

B.

0.375 ohms

C.

24 ohms

D.

2.7 ohms

When powering a system off, which device from the following list should you turn off first?

A.

Pre-amplifiers

B.

Wireless mic receivers

C.

Blu-ray players

D.

Power amplifiers

Projector optics is defined as a _____.

A.

light source and a series of lamps that carry an image on a screen

B.

series of lenses that carry an image on a screen

C.

series of mirrors and lights that carry an image on a screen

D.

system of lamps and lenses that carry an image on a screen

Where are tall equipment racks usually mounted?

A.

To a wall

B.

To the floor

C.

To the ceiling

D.

Equipment racks can't be mounted

Conduit fill percentage varies by the ___.

A.

Number of cables

B.

Quality of cables

C.

Gauge of cables

D.

Length of cables

Most transformers have multiple wires on the primary side that allow you to adjust the ____ each loudspeaker.

A.

Placement of

B.

Impedance of

C.

Wiring scheme for

D.

Voltage level to

The minimum SAE grade rating recommended for AV mounts is:

A.

2

B.

>8

C.

5

D.

8

What method can a technician use onsite to verify that the AV device is set to the proper IP address?

A.

Connect directly to the CPU using an XLR connector and the Ping program

B.

Use a USB connection to the CPU and the HyperTerminal program

C.

Use a Serial Digital Interface to locate the IP

D.

Use a DVI-D connector and telnet into the device

What is industry best practice for ensuring that all equipment has been delivered to the site for an AV event?

A.

Selected equipment is matched to the shipping manifest

B.

One person should be in charge of everything

C.

All delivery personnel should be assigned a color coded area

D.

All equipment should be weighed

Before developing a project plan, it is important to:

A.

Make sure the client has made a deposit payment

B.

Have a clear understanding of the scope of work

C.

Order the AV equipment needed

D.

List all the teams that will work on the project