Type training · Boeing 757 B1.1 · ATA 30
Boeing 757 B1.1: Ice and Rain Protection (ATA 30)Type training questions & answers
Wing and engine anti-ice, window and probe heat, windshield wipers and rain repellent.
- A worked explanation on every question
- Written for the 757-200 with Rolls-Royce RB211-535E4 engines
- Read in English or 15 other languages
Sample Ice and Rain Protection questions with answers
Three questions from the free preview. Think of your answer first, then open the explanation.
1.Which leading edge slats are heated by the wing anti-ice system?
- A.Only the inboard slats 5 and 6
- B.Slats 2, 3, 4 and 7, 8, 9
- C.All ten slats
Show answer and explanation
Correct answer: B. Slats 2, 3, 4 and 7, 8, 9
Bleed air heats the three outboard slats on each wing (2–4 left, 7–9 right). It exits through holes in the bottom of each slat.
2.When does the wing anti-ice system operate?
- A.Only with both engines above 80% N1
- B.Only in the air, apart from ground tests
- C.Whenever the WING ANTI-ICE switch is ON
Show answer and explanation
Correct answer: B. Only in the air, apart from ground tests
An air/ground relay prevents operation on the ground. A ground test opens the valves for 12 seconds.
3.How long do the wing anti-ice valves stay open during a ground test?
- A.60 seconds
- B.Until the test switch is released
- C.12 seconds
Show answer and explanation
Correct answer: C. 12 seconds
A ground safety time delay relay closes the valves after 12 seconds to prevent a duct overheat. The test can then be repeated.
Part of the Boeing 757 B1.1 type course
One chapter of the Boeing 757 B1.1 type course question bank, for the 757-200 with Rolls-Royce RB211-535E4 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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