200 - ATPL - In order to know in which mode the auto-throttles are engaged, the crew will check the:

Question 200 - Aircraft General Knowledge - Instrumentation - ATPL - Airline Transport Pilot license

ND (Navigation Display).
PFD (Primary Flight Display)
Throttles position.
TCC (Thrust Control Computer).

Training tests and timed exam simulations ATPL - Airline Transport Pilot license