When a NORDO aircraft crosses an airport for the purpose of obtaining landing information it should maintain
Why this is the answer
A NORDO aircraft crossing over to read the wind/circuit should stay at least 500 ft above circuit height, well clear of circuit traffic below, before descending to join (TC AIM-RAC, NORDO Aircraft).
Reference
TC AIM-RAC – Arrival Procedures – NORDO Aircraft
Question reproduced verbatim from Transport Canada’s PSTAR Study and Reference Guide (TP 11919E). The answer key is Transport Canada’s; the explanation is ours.
A study aid — not a substitute for the official guide, the CARs, or your instructor.