Exam 3

Question 1

What does the HPRSOV control

Answer 1

Bleed extraction

Question 2

Where does the LPCV provide bleed air from

Answer 2

Engine LP port to the bleed circuit and prevents reverse flow from the high port to the low port when HPSOV is open

Question 3

How does PRSOV regulates bleed air pressure

Answer 3

shuts off bleed extraction from the engine whenever necessary

Question 4

What does the FAV do

Answer 4

regulates the amount of air extracted from the engine fan used to cool down the air extracted from the LP and HP ports

Question 5

What does the pre-cooler do

Answer 5

exchanges heat between the hot air tapped from the LP and HP ports and the cold air extracted from the engine fan

Question 6

What is the pressure transducer used for and where is it located (LP)

Answer 6

Used for bleed switching logic between LP and HP ports - located upstream from the LPCV

Question 7

What is the pressure transducer used for and where is it located (HP)

Answer 7

Monitoring purposed located downstream of the HPSOV

Question 8

Where is the pre-cooler pressure transducer located

Answer 8

downstream of the pre/cooler - used in the bleed pressure control loop

Question 9

Differential pressure transducer is used to monitor _____

Answer 9

PRSOV position and reverse flow. Connected upstream and downstream pre-cooler

Question 10

Temperature sensor is located where

Answer 10

downstream pre-cooler that is used in the bleed temperature control loop

Question 11

What chemical is used like water repellant

Answer 11

AV 8 (Dimatrol)

Question 12

How much fuel in the centre tank

Answer 12

10,000 KG

Question 13

how much fuel in the wing tanks

Answer 13

2100 KG

Question 14

What pressure differential will automatically open the outflow valves

Answer 14

.5 PSI

Question 15

How many bolts are used to connect the H stab

Answer 15

24 bolts

Question 16

how many struts provide the coinnection to the APU

Answer 16

7 struts with 3 mounts

Question 17

How many blow out panels are installed in the cargo

Answer 17

4

Question 18

What is ventilation used for in the cargo

Answer 18

keep the cargo above 0 degrees

Question 19

What does the cargo compartment shutoff valve do

Answer 19

shuts airflow if smoke condition

Question 20

How many Pylon hinges in the fan cowl

Answer 20

3

Question 21

How many pylon hinges for the TR

Answer 21

2

Question 22

What doors have master warnings

Answer 22

Passenger service and cargo ( PROX SENSORS)

Question 23

what doors have caution

Answer 23

service doors with one engine running

Question 24

What warning occurs for a fuel door open

Answer 24

Advisory blue CAS

Question 25

What is the ultrasonic tank for

Answer 25

water and waste

Question 26

how does the AMSC control the cabin pressure

Answer 26

through 2 pressure ports on the back of the unit

Question 27

How to update the FCC

Answer 27

through the AMS controller maintenance panel

Question 28

What controls the Bleed APU

Answer 28

APU FADEC through SPDA 1 converts digital to ARINC and sends signal to APU FADEC

Question 29

What monitors icing conditions

Answer 29

AMS controller

Question 30

What stage is the LP

Answer 30

4

Question 31

what stage is HP

Answer 31

8

Question 32

When is HP bleed used

Answer 32

when aircraft starts the decent

Question 33

What is responsible for cabin pressure

Answer 33

AMS to control outflow vales

Question 34

If the pressure between LP and HP is the same what happens

Answer 34

HPSOV is closed the LP is used

Question 35

What are the fail safe for valves

Answer 35

Anti-ice FADEC controls - fail safe open - everything else is fail safe closed

Question 36

What is the HPSOV downstream pressure pneumatically limited to

Answer 36

75 +- 5 PSI

Question 37

When is the HPSOV indicated open

Answer 37

BMPS-BSPS > 15 PSI and PRSOV is open and engine running

Question 38

Where is the PRSOV Located

Answer 38

in the engine nacelle, gear the core compressor casing.