Communications

Question 1

How many audio control panels are there?

Answer 1

3

Question 2

What does the EMER/NORM switch on the ACP do?

Answer 2

Hard wires ACP1 to COMM 1/NAV 1 and ACP2 respectively in the event of ACP failure.

Question 3

Name all of the ways the COMM and NAV radios can be tuned:

Answer 3

RTU, FMS, BTU

Question 4

How would you cross side tune the RTUs?

Answer 4

Use 1/2 button on RTU.

Question 5

Why would you select the RTU 1 or 2 INHB key?

Answer 5

Allows frequencies to be tuned when cross side RTU has failed.

Question 6

How would you establish crew communication per the emergency checklist?

Answer 6

Select mask mic on ACP with speaker on.

Question 7

What switches should be selected when making a PA announcement?

Answer 7

PA button on ACP and PA button on panel above source select.

Question 8

What switches should be selected when calling the flight attendants?

Answer 8

PA button on ACP then call button on panel above source select.

Question 9

Which radios would remain operative and how would you tune them on battery power only?

Answer 9

COM 1 and NAV 1 on BTU (backup tuning unit)

Question 10

When does the cockpit voice recorder begin recording?

Answer 10

Whenever battery power is applied.

Question 11

When does the flight data recorder begin recording

Answer 11

Strobe or beacon on.

Or weight off wheels.