Type training · Boeing 737 Classic B1.1 · ATA 28

Boeing 737 Classic B1.1: Fuel (ATA 28)Type training questions & answers

Tanks and venting, boost pumps and crossfeed, low pressure indication, scavenge, pressure fuelling and quantity.

Start practising →43 questions · free preview available

Sample Fuel questions with answers

Three questions from the free preview. Think of your answer first, then open the explanation.

  1. 1.How is the 737 Classic main fuel storage divided?

    • A.Four wing tanks plus a tail trim tank
    • B.Two wing tanks only, with no centre tank
    • C.Two wing tanks and a centre tank
    Show answer and explanation

    Correct answer: C. Two wing tanks and a centre tank

    Three integral tanks: tanks No. 1 and 2 in the wings and a three-cavity centre tank, plus optional auxiliary tanks. Ref 737-300/400/500 AMM 28-00-00.

  2. 2.What is the purpose of the 737 Classic surge tank?

    • A.Collects overflow, vents tanks
    • B.Stores reserve fuel for APU
    • C.Feeds the engines at low level
    Show answer and explanation

    Correct answer: A. Collects overflow, vents tanks

    A surge tank outboard of each wing tank collects fuel overflow and contains the venting equipment. Ref 737-300/400/500 AMM 28-11-00.

  3. 3.What do the 737 Classic wing tank baffle check valves do?

    • A.Stop fuel flowing inboard
    • B.Relieve tank over-pressure
    • C.Stop fuel flowing outboard
    Show answer and explanation

    Correct answer: C. Stop fuel flowing outboard

    They let fuel flow inboard but not outboard, keeping the boost pump inlets covered. Ref 737-300/400/500 AMM 28-11-00.

Practise all 43 Fuel questions →

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.

All Boeing 737 Classic B1.1 chapters →

More Boeing 737 Classic B1.1 chapters

Start practising →All Boeing 737 Classic B1.1 chapters