Ground control authorizes “GOLF ALPHA BRAVO CHARLIE TAXI RUNWAY 29 HOLD SHORT OF RUNWAY 04”. The pilot should acknowledge this by replying “GOLF ALPHA BRAVO CHARLIE TO
Why this is the answer
Per the TC AIM, a taxi instruction with a hold-short restriction must be read back including the hold-short element, so the correct acknowledgement ends “...HOLD SHORT OF 04.” Reading back only the destination runway omits the safety-critical restriction.
Reference
TC AIM-RAC – Taxi Information
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.