AET Maintenance Procedures and Safety 4

Question 1

Which of the following is the CORRECT way to handle a suspected counterfeit avionics part discovered in the supply chain?

Accepted Answer

Quarantine the part and report it to the FAA via a Suspected Unapproved Parts (SUP) notification

Answer

Install it and monitor for discrepancies

Answer

Return it to the supplier for a refund

Answer

Destroy it immediately to prevent misuse

Question 2

A technician installs a new avionics component and finds that a required placard is missing from the instrument panel. The CORRECT action is to:

Accepted Answer

Fabricate or order the correct placard and install it before return to service

Answer

Verbally inform the pilot about the missing placard

Answer

Note it in the discrepancy log and return the aircraft to service

Answer

Cover the area with a temporary label

Question 3

When performing a continuity check on an aircraft wiring harness, the technician should FIRST:

Accepted Answer

Disconnect power and verify the circuit is de-energized before testing

Answer

Apply 28 VDC to the circuit and measure with a voltmeter

Answer

Use an RF signal injector for better accuracy

Answer

Remove the harness from the aircraft for bench testing

Question 4

What does the ESD (Electrostatic Discharge) symbol on an avionics component packaging indicate?

Accepted Answer

The component is sensitive to static electricity and requires ESD-safe handling procedures

Answer

The component requires external power before installation

Answer

The component emits electromagnetic radiation during operation

Answer

The component must be stored at a controlled temperature

Question 5

An avionics technician is assigned to work near aircraft fuel tanks. Which of the following is the MOST critical safety precaution?

Accepted Answer

Bond and ground the aircraft, eliminate all ignition sources, and ensure adequate ventilation

Answer

Wear fire-resistant clothing only

Answer

Keep a fire extinguisher within 10 feet at all times

Answer

Work only during daylight hours for better visibility

Question 6

What is the maximum length of time a calibration sticker on a test instrument can be expired before the instrument must be recalibrated before use on an aircraft?

Accepted Answer

No grace period — any instrument with an expired calibration sticker must NOT be used on aircraft

Answer

30 days grace period is standard

Answer

90 days if stored in a controlled environment

Answer

6 months for digital instruments

Question 7

When routing new avionics wiring near aircraft control cables, the minimum separation distance specified in AC 43.13-1B is:

Accepted Answer

3 inches

Answer

1/4 inch

Answer

1/2 inch

Answer

6 inches