Type training · Boeing 737 Classic B1.1 · ATA 35, 38
Boeing 737 Classic B1.1: Oxygen, Water and Waste (ATA 35, 38)Type training questions & answers
Crew and passenger oxygen, portable equipment, potable water, water heaters, waste water and toilets.
- A worked explanation on every question
- Written for the 737-300/400/500 with CFM56-3 engines
- Read in English or 15 other languages
Sample Oxygen, Water and Waste questions with answers
Three questions from the free preview. Think of your answer first, then open the explanation.
1.Where is the 737 Classic crew oxygen cylinder installed?
- A.Forward cargo compartment, right sidewall
- B.In the E/E bay, below the flight deck floor
- C.Behind the first officer's seat, in a rack
Show answer and explanation
Correct answer: A. Forward cargo compartment, right sidewall
The crew oxygen cylinder is on the forward right sidewall of the forward cargo compartment. Ref 737-300/400/500 AMM 35-12-00.
2.What is the full charge pressure of the 737 Classic crew oxygen cylinder?
- A.3,000 psig
- B.1,200 psig
- C.1,850 psig
Show answer and explanation
Correct answer: C. 1,850 psig
Filled to 1,850 psig the cylinder holds 39 or 76 cubic feet of oxygen by size. Ref 737-300/400/500 AMM 35-12-00.
3.What does a missing green disc on the 737 Classic fuselage near the oxygen cylinder show?
- A.The cylinder is due for its hydrostatic test
- B.The oxygen fill port has been left open
- C.Cylinder vented overboard
Show answer and explanation
Correct answer: C. Cylinder vented overboard
If the cylinder frangible disc breaks, pressure in the overboard vent breaks the green discharge indicator. Ref 737-300/400/500 AMM 35-12-00.
Part of the Boeing 737 Classic B1.1 type course
One chapter of the Boeing 737 Classic B1.1 type course question bank, for the 737-300/400/500 with CFM56-3 engines, 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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