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Rear projection is a transmissive system that _____.

A.

requires little space for installation

B.

allows light to pass through a translucent screen toward the viewer

C.

handles ambient light issues more poorly than front screen projection

D.

can allow a presenter to block all or part of the image

Optical screen material is used in most _____ rear screen applications.

A.

temporary

B.

permanent

C.

mobile

D.

Stationary

It is a best practice to choose a mount with a safety factor of at least _____.

A.

2

B.

4

C.

5

D.

8

Which of the following is the best definition of aspect ratio?

A.

the ratio of image width to length

B.

the ratio of image width to height

C.

the ratio of image distance to height

D.

the ratio of image depth to distance

What function does a timesheet serve?

A.

They mark how much time is left to complete a project

B.

They help track how many man-hours have already been spent on the project

C.

They are only a way to receive payment after a project

D.

They show your client how much experience you have on that type of project

Which set of drawings would you reference to locate the power outlet for a video display?

A.

Structural drawings

B.

Mechanical drawings

C.

Electrical drawings

D.

System drawings

Why is proper weight distribution in a rack important?

A.

so the AV technicians do not strain themselves installing gear

B.

so the rack does not tip over

C.

so the left and right sides of the rack are an equal weight

D.

so the rack does not exceed 500 lbs. (227kg)

If existing components have to be reused in an AV system, what is a critical task that the installer must perform?

A.

Draw a schematic showing where the old equipment fits

B.

Call the manufacturer to extend the warranty

C.

Test the equipment to make sure it is operational

D.

Discard items that do not meet specifications

What are possible reasons for no picture on the screen? (Choose all that apply.)

A.

The display device is not plugged in.

B.

The source device is unable to read EDID data packets.

C.

The hot plug pin is unable to detect a display device.

D.

A switcher is intercepting the hot plug detection.

You have a cable with a part number "RGB5C-25-CM." What is the wire gauge of this cable?

A.

25 AWG

B.

5 AWG

C.

25 cm

D.

250 AWG