Type training · Boeing 737 Classic B2 · ATA 34
Boeing 737 Classic B2: Air Data, IRS and EFIS (ATA 34)Type training questions & answers
Pitot-static, air data computers, Mach/airspeed warning, EFIS, standby instruments and the laser gyro IRS.
- A worked explanation on every question
- Written for the 737-300/400/500 avionics
- Read in English or 15 other languages
Sample Air Data, IRS and EFIS questions with answers
Three questions from the free preview. Think of your answer first, then open the explanation.
1.How many pitot-static systems does the 737 Classic list?
- A.Three: captain, first officer and a standby
- B.Two: a left and a right system only
- C.Five: CA, FO, aux 1, aux 2, alternate
Show answer and explanation
Correct answer: C. Five: CA, FO, aux 1, aux 2, alternate
Captain's, first officer's, auxiliary 1, auxiliary 2 and alternate systems; some auxiliary parts are not used. Ref 737-300/400/500 AMM 34-11-00.
2.What does the 737 Classic auxiliary No. 1 static system feed?
- A.The standby airspeed indicator
- B.Cabin differential pressure indicator
- C.The captain's altimeter, as a backup
Show answer and explanation
Correct answer: B. Cabin differential pressure indicator
Auxiliary 1 static gives static pressure to the cabin differential pressure indicator and electronic pressure controller. Ref 737-300/400/500 AMM 34-11-00.
3.What range does the 737 Classic standby airspeed indicator show?
- A.80 to 500 kt
- B.60 to 450 kt
- C.40 to 400 kt
Show answer and explanation
Correct answer: B. 60 to 450 kt
The pneumatic standby airspeed indicator shows 60 to 450 kt; the standby altimeter −1,000 to 50,000 ft. Ref 737-300/400/500 AMM 34-11-00.
Part of the Boeing 737 Classic B2 type course
One chapter of the Boeing 737 Classic B2 type course question bank, for the 737-300/400/500 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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