Communications
Phraseology and clarity
Communications questions test standard phraseology, readback requirements, the structure of a radio call, and the correct use of distress and urgency signals. Understand the difference between MAYDAY and PAN PAN, when each is used, and what information each call must contain. Know the phonetic alphabet, standard word groups, and the meaning of common instructions.
Traps
Frequent traps include confusing distress with urgency, omitting a readback of a clearance that requires one, and using non-standard phraseology that could be misread. Another trap is failing to state position, level and intention in the correct order. Questions may also test what to do when a transmission is not understood.
Worked example
If a clearance is not understood, the correct response is to request clarification rather than to act on an assumption. A readback confirms that the message was received correctly; if the controller does not correct it, the clearance stands.
Rule of thumb
Distress (MAYDAY) means grave and imminent danger requiring immediate assistance; urgency (PAN PAN) means a condition concerning safety that does not require immediate assistance.