Type training · Boeing 777 B2 · ATA 21, 36
Boeing 777 B2: Air Conditioning and Pneumatic (ATA 21, 36)Type training questions & answers
Recirculation and equipment cooling, pressurization, pack flow and the bleed air system.
- A worked explanation on every question
- Written for the 777 avionics
- Read in English or 15 other languages
Sample Air Conditioning and Pneumatic questions with answers
Three questions from the free preview. Think of your answer first, then open the explanation.
1.Which controller is primary for the 777 recirculation fans?
- A.The left cabin temperature controller
- B.Whichever controller powers up first
- C.The right cabin temperature controller
Show answer and explanation
Correct answer: C. The right cabin temperature controller
The right CTC is the primary controller for the recirculation fans. Ref AMM 21-25-00.
2.How do the two lavatory and galley vent fans operate?
- A.Both start at airplane power-up
- B.Right fan primary, left fan backup
- C.Both fans run at the same time
Show answer and explanation
Correct answer: B. Right fan primary, left fan backup
Only one runs at a time: the right fan is primary and the left fan is the backup. Ref AMM 21-26-00.
3.Which switch indication shows equipment cooling automatic mode?
- A.CLOSED
- B.ON
- C.AUTO
Show answer and explanation
Correct answer: C. AUTO
Automatic mode is selected when the switch shows AUTO. Ref AMM 21-27-00.
Part of the Boeing 777 B2 type course
One chapter of the Boeing 777 B2 type course question bank, for the 777 avionics, written in our own words for revision. Your type course and the aircraft maintenance manual stay the authority: limits and procedures can differ between airframes and operators.
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