Air

Question 1

The Outflow Valve Position Indicator operates with the

Pressurization Mode Selector in _____.

Answer 1

any position

Question 2

With one pack not operating”,” the other pack automatically

switches to “high air flow”

Answer 2

inflight with the flaps retracte

Question 3

The APU Bleed Valve”,” with an engine Bleed Air Valve

open”,” can____________.

Answer 3

be opened when starting engines”,” but avoid engine

power above idle

Question 4

The _____ provides an Equipment Cooling alert if an over

temperature occurs on the ground.

Answer 4

Crew Call Horn in the nose wheel well

Question 5

The Overboard Exhaust Valve (OEV) ______.

Answer 5

when closed”,” diffuses equipment cooling exhaust air

around the lining of the Forward Cargo Compartment

Question 6

Upon descent”,” the Cabin Pressurization Controller _____ if
OFF SCHED DESCENT light (amber) remains illuminated.

Answer 6

pressurizes cabin to takeoff airport altitude

Question 7

Conditions permitting”,” the TRIP RESET switch resets the

_____

Answer 7

) BLEED TRIP OFF”,” ZONE TEMP”,” and PACK lights

Question 8

DUAL BLEED (amber) light illuminates when APU Bleed Air 
Valve is open and \_\_\_\_\_.

Answer 8

No. 1 Engine BLEED Valve Switch ON or No. 2 Engine

BLEED Valve Switch ON with the ISOLATION VALVE open

Question 9

Is it possible to control”,” from the flight deck”,” the

temperature of conditioned air from an external air source?

Answer 9

No”,” flight deck controls are ineffective in controlling or
modifying external air temperatures

Question 10

Positioning all Zone Temperature Selectors to OFF causes

pack controls to ______.

Answer 10

) maintain 75 degrees F on left pack and 65 degrees F on

right pack

Question 11

The Air Recirculation Fans draw warm air from _____

Answer 11

the E/E Bay

2) the Passenger Cabin
3) the lining of the Forward Cargo Compartment
4) all of the above

Question 12

Cabin Altitude and _____ warnings use the same aural tone

(intermittent horn) when activated

Answer 12

Takeoff Configuration

Question 13

A single pack in high flow mode is capable of maintaining
pressurization and acceptable temperatures throughout the
aircraft up to the____

Answer 13

Maximum Certified Altitude

Question 14

To decrease cabin altitude when using the Cabin

Pressurization Mode Selector in MAN”,” _______.

Answer 14

close the outflow valve

Question 15

Failure of the primary Flight Deck zone temperature control

causes _____

Answer 15

automatic switch to backup control and illumination of
CONT CAB ZONE TEMP (amber) light on Master Caution
Recal

Question 16

The WING-BODY OVERHEAT (amber) light indicates

________.

Answer 16

a bleed air leak in a critical area

Question 17

Illumination of a ZONE TEMP (amber) lights indicate a zone

supply duct overheat and the associated _____ .

Answer 17

Trim Air Modulating Valve closes

Question 18

With the ISOLATION VALVE SWITCH in AUTO”,” the

ISOLATION VALVE _____.

Answer 18

opens when any ENGINE BLEED AIR switch or any air

conditioning PACK switch is OFF

Question 19

Packs produce air temperature to satisfy the _____.

Answer 19

zone requiring the most cooling

Question 20

A _____ Valve pneumatically modulates to control airflow
into the respective Air Conditioning Pack based on air
conditioning demands.

Answer 20

) Pack

Question 21

BLEED TRIP OFF (amber) light indicates the Engine Bleed Air
Valve automatically closed due to excessively _____ engine
bleed air temperature _____

Answer 21

high / or high pressure

Question 22

Position PACK switches ______ when using external

conditioned air

Answer 22

OFF

Question 23

OFF SCHED DESCENT (amber) illuminates if the _____.

Answer 23

aircraft begins to descend without reaching the preset

cruise altitude

Question 24

With both RECIRC FAN switches on AUTO”,” and both PACK

switches on AUTO”,” _____ Recirculation Fan(s) operate(s)

Answer 24

both

Question 25

With Cabin Pressurization Mode Selector in MAN”,” a _____.

Answer 25

spring-loaded switch opens and closes outflow valve