Bleed Air System

Question 1

Who is supplying bleed air?

Answer 1

APU
ENGINES
AIR GROUND SOURCE

Question 2

FOR WHAT IS USED THE BLEED AIR?

Answer 2

AIR CONDITIONING
ENGINE START
APU START
PRESSURIZATION
AIR DRIVEN HYD PUMP
HYD RESERVOIR PRESS
POTABLE WATER TANK PRESS.
TAT PROBE ASPIRATION
ENGINE AND WING ANTI ICE
AFT CARGO HEAT

Question 3

WHEN THE BLEED AIR VALVE WILL CLOSE AUTOMATICALLY?

Answer 3

ENGINE START,
OVERPRESSURE
OVER TEMPERATURE
DUCT LEAK
ENGINE FIRE SWITCH ARMED
BLEED AIR SOURCE LOSS
GRD CART SUPPLYING AIR

Question 4

UP TO WHICH ALTITUDE THE APU CAN SUPPLY BLEED AIR?

Answer 4

Up to 22000 ft

Question 5

APU TO PACK TAKE OFF , BEFORE START, WHEN THE SYS WILL CONFIGURE?

Answer 5

Approx 1 MIN AFTER STARTING THE SECOND ENGINE

Question 6

If BOTH ENGINES ARE RUNNING WHEN THE SYS WILL CONFIGURE FOR AN APO TO PACK TAKE OFF?

Answer 6

Immediately

Question 7

HOW THE APU TO PACK TAKE OFF CONFIGURE THE SYSTEMS

Answer 7

LEFT BLEED OFF, APU SUPPLY BLEED TO LEFT PACK AND C1 HY AIR DRIVEN PUMP
RIGHT BLEED SUPPLY BLEED TO C2 AND TO RIGHT PACK

Question 8

IN WHICH CONDITION THE APU TO PACK WILL RECONFIGURE TO NORMAL?

Answer 8

When:
CLB TRUST IS SET
AFTER 10 MIN FROM TAKE OFF
AT 11400ft
APU TO PACK CANNOT BE CONTINUED DUE TO A FAILURE
APU TO PACK IS DELETED FROM THE CDU MANUALLY

Question 9

Which is the normal postion of the bleed isolation valves?

Answer 9

L AND R BLEED ISOLATION VALVES USUALLY ARE OPEN
THE CENTER UIS USUALLY CLOSED

Question 10

What happens if a duct leak is detected?

Answer 10

The system will try to isolate in 1 or 2,3 steps the leak