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单选题 The native resolution for 1080i is()

A

1920×1280

B

1920×1080

C

1280×1080

D

1280×720

单选题 Which of the following cabling would be MOST commonly used with digital volume controls?()

A

Unshielded twisted pair

B

RJ-59

C

16/4 solid conductors

D

Speaker Wire

单选题 Small in-ceiling speakers are BEST suited for()

A

loud, bass intensive music (e.g. heavy metal, rock).

B

providing a sub-woofer for great bass reproduction.

C

background music and blending in with decor.

D

the user who wants perfect sound reproduction.

单选题 If the speakers in an installation are out of phase, this means that()

A

the subwoofer is at the wrong angle.

B

the front and rear speakers are reversed.

C

the polarity of the speakers are reversed.

D

the angle of the speakers are incorrect.

单选题 Which of the following is MOST likely causing an intermittent flashing LED on an IR receiver when the remote control is not being used?()

A

The power supply is faulty and should be replaced.

B

The heat from a heating, ventilation, and air conditioning (HVAC) register is being received as infrared noise.

C

The radio frequency interference (RFI) is being received as noise.

D

A plasma display is emitting infrared noise.

单选题 Which of the following is the primary purpose of impedance matched volume control?()

A

Maintains proper speaker phase

B

Protects the amplifier from damage

C

Protects the digital systems from damage

D

Amplifies the speaker signal

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