A220 HYDRAULIC SYSTEM Questions with Detailed Verified Answers

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A220 HYDRAULIC SYSTEM Questions with
Detailed Verified Answers

Question: What type of pumps are the hydraulic pumps 1A and 2A?

Ans✅ ✅: EDP (engine driven pump)

Question: What type of pumps are hydraulic pump 3A, 3B, and 2B?

Ans✅ ✅: ACMP (Alternating Current Motor Pump)

Question: What are the two functions provided by the hydraulic system
accumulators in system 3?

Ans✅ ✅: Provide sufficient hydraulic pressure during RAT deployment

To dampen transient pressure during rapid movement of hydraulic users

Question: What Is the advantage of using a PTU in hydraulic system 1
vs. an ACMP?

Ans✅ ✅: A reduction of weight

Question: What component in all 3 hydraulic systems "preserve system
pressure and flow capability for higher
priority users if there is a pressure drop to 1700 psi or less"?

Ans✅ ✅: Priority valves

Question: The priority valve on hydraulic system 1 Isolates which
component?

Ans✅ ✅: Landing gear

Question: The priority valve on hydraulic system 2 Isolates which
component?