AC, BLEED & PRESS

Question 1

Q1: What does IAMS stand for?

Answer 1

A: Integrated Air Management System

Question 2

Q2: What are the 5 components of IAMS?

Answer 2

A: 1- Bleed Air System 2- BALODS
3- Air Conditioning System
4- Avionics cooling and heat extraction system 5- Pressurization System

Question 3

Q3: What does the Probe Heat Switch on the overhead panel allow you to do?

Answer 3

A: It allows you to bypass the ground logic and power the probe heaters for 2

Question 4

Q4: What is the maximum windshield wiper speed?

Answer 4

A: 250 KIAS

Question 5

Q5: How many Ice detectors are installed on the airplane?

Answer 5

A: 2

Question 6

Q6: What stages of bleed air are used by the IASC to accomplish Bleed, Air

Answer 6

A: 4th and 8th stages

Question 7

Q7: Which stages of bleed air is used for cowl anti-ice?

Answer 7

A: 6th stage

Question 8

Q8: How are the probes, ADSP, AOA, TAT and windows heated?

Answer 8

A: Electrically

Question 9

Q9: Which of APU or Engine has priority to supply bleed air on the ground?

Answer 9

A: APU

Question 10

Q10: What does BALODS stand for?

Answer 10

A: Bleed Air Leak and Overheat Detection System

Question 11

Q11: What system does BALODS use to detect leaks?

Answer 11

A: Dual-loop system

Question 12

Q12: Which message is displayed by the EICAS when you enter icing conditions if
wing and cowl anti-ice are selected OFF?

Answer 12

A: ICE (caution message)

Question 13

Q13: What happens if you select the PACK FLOW on the overhead panel?

Answer 13

A: It manually operates the pack in HI Flow

Question 14

Q14: What is the zone temperature range available in AUTO operation mode?

Answer 14

A: between 18°C and 30°C

Question 15

Q15: What Is the duct temperature range available in MAN operation mode?

Answer 15

A: between 5°C and 65°C

Question 16

Q16: Which cargo compartment has heating capability?

Answer 16

A: Forward cargo only

Question 17

Q17: What selections would you make on the overhead panel if you wanted to increase the temperature in the forward cargo?

Answer 17

A: Rotate the forward cargo switch to LO or HI. (FCOM1 2-3-19)

Question 18

Q18: How many IASC do we have on the airplane?

Answer 18

A:2

Question 19

Q19: What kind of valve is the engine bleed valve?

Answer 19

A: PRSOV

Question 20

Q20: In the AUTO selection which controller controls the cross bleed valve?

Answer 20

A: Normally controlled by the IASC

Question 21

Q21: What happens when the RECIRC AIR button is pushed and indicates OFF?

Answer 21

A:
1. It turns the recirculation fan OFF and:
2. If the AFT and FWD cargo switches are selected to OFF or VENT,the respective CARGO
SOV’S will go CLOSE.
3. If the FWD cargo switch is selected to LO or HI heat, then the CARGOSOV’s will remain
OPEN.

Question 22

Q22: On the air synoptic page, what are the names of the two valves related to the Trim Air System?

Answer 22

A. TASOV and TAPRV

Question 23

Q23: If the TRIM AIR switch is selected OFF, what becomes unavailable?

Answer 23

A: FWD CARGO heating is not available (so the FWD CARGO must be selected to OFF or VENT)

Question 24

Q24: What is the purpose RAM AIR valve?

Answer 24

A: It provides emergency ventilation to cabin and cockpit at low altitude.

Question 25

Q25: Which valve is controlled by the INLET pushbutton on the overhead panel?

Answer 25

A: The ground valve. (In OFF position also shuts off the FWD and MID supply fans)

Question 26

Q26: What is the purpose of the ground valve?

Answer 26

A: It provides additional cooling to the mid equipment bay if the OAT is between3°C and 30°C {37°F and 86°F).

Question 27

Q27: When does the ground valve close automatically?

Answer 27

A: The IASC closes the valve when all doors are closed and locked.

Question 28

Q28: When does the ground valve open again automatically?

Answer 28

A: 1 min after touchdown

Question 29

Q29: How many outflow valves do we have on the airplane?

Answer 29

A: 1

Question 30

Q30: How many safety valves do we have on the airplane?

Answer 30

A:2

Question 31

Q31: What is the purpose of the outflow valve?

Answer 31

A: it controls the pressurization of the airplane

Question 32

Q32: What is the purpose of the safety valves?

Answer 32

A: It provides overpressure and negative pressure relief

Question 33

Q33: At what altitude does the pax oxygen mask deploy?

Answer 33

A: at 14 500'

Question 34

Q34: Please complete the sentence: Manual selection of EDM is prohibited below;

Answer 34

A: 25 000'