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单选题 Which of the following BEST describes CAT5e?()

A

Contains four pair of wires of various gauge

B

Contains two wires in a red fireproof jacket

C

Contains four twisted pairs of wires

D

Contains eight wires within a thick jacket with a rip cord

单选题 Which of the following can cause ghosting in a video image?()

A

Bent pin on an S-Video cable

B

Mislabeled component cables

C

Defective HDMI cable

D

Improperly terminated coax cable

单选题 Which of the following is a diplexer used for?()

A

Allows two satellite tuners to use the same dish.

B

Connects the low noise block down converter (LNB) to the multi-switch.

C

Combines satellite and over the air (OTA) signals.

D

Allows one LNB to use two satellites.

单选题 According to Ohm’s Law, which of the following is correct?()

A

As voltage increases, resistance decreases

B

As amperage decreases, resistance decreases

C

As resistance decreases, amperage increases

D

As resistance increases, voltage increases

单选题 When installing cables, which of the following is the BEST way of identifying the individual cables?()

A

A cable chart mounted in the cabinet

B

A label at the tip of the cable

C

A label within six inches at each end of the cable

D

A penciled notation on the panel cover

单选题 An optical cable is used to transmit:()

A

digital audio from a component to a receiver.

B

analog video from a component to a receiver.

C

analog audio from a component to a receiver.

D

digital video from a component to a receiver.

单选题 Which of the following is the correct signal flow for an analog multi-room audio system?()

A

Source,Volume Control,Speaker,Amp

B

Source,Amp,Volume Control,Speaker

C

Amp,Source,Volume Control,Speaker

D

Speaker,Amp,Volume Control,Source

单选题 Which of the following is the recommended placement of the rear surround speakers in a 5.1 surround installation?()

A

Directly to the left and right and slightly in front of the listener

B

Directly to the left and right and slightly behind the listener

C

Above and behind the listener

D

Directly behind the listener

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