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31

Inflight, normal air conditioning system operation would be ____. a. one pack from two engine bleed sources b. two packs from one engine bleed source c. automatic and variable depending on bleed air needs d. each pack from its associated engine bleed source

d. each pack from its associated engine bleed source

32

Which single bleed source is permitted to supply air to both packs on the ground? a. Any bleed source. b. The APU only. c. An engine bleed or APU. d. None

c. An engine bleed or APU.

33

A pack will go to a high flow rate when one pack switch is in auto and the other pack is selected off. This feature is inhibited when _____. a. the airplane is on the ground only b. inflight with the flaps up only c. inflight with the gear up d. the airplane is on the ground, or inflight with the flaps extended

d. the airplane is on the ground, or inflight with the flaps extended

34

The ram air system operates automatically to provide cooling for ____. a. emergency cooling needs b. the E & E compartment on the ground c. the heat exchangers d. the right pack alternate air source

c. the heat exchangers

35

For maximum cooling (of the pack) the ram air inlet doors modulate toward the _________. a. full closed position b. full open position c. mid position d. ram air inlet doors do not modulate

b. full open position

36

Deflector doors on the ram air system are used on the ground to __________. a. increase airflow through the ram air doors b. prevent slush ingestion on takeoff or landing c. allow for smooth air flow over the heat exchangers d. prevent backflow of air over the heat exchangers

b. prevent slush ingestion on takeoff or landing

37

The deflector doors on the ram air system are fully extended ____. a. inflight with the gear extended b. inflight with the flaps extended c. on the ground only d. on the ground, or inflight with the flaps extended

c. on the ground only

38

The packs produce conditioned air for the zone requiring the ____. a. most cooling b. warmest temperature c. average temperature as determined by the demand in each section d. maximum volume of air irrespective of temperature demands

a. most cooling

39

Zone temperature is controlled by introducing the proper amount of trim air into the__________. a. the mix manifold b. individual zone supply duct c. the pack temp control valve d. modulating the ram air inlet doors

b. individual zone supply duct

40

Failure of the primary and standby flight deck zone temperature controls will cause the ____ to illuminate. a. MASTER CAUTION light only b. ZONE TEMP light only c. ZONE TEMP, MASTER CAUTION, and AIR COND annunciator lights d. PACK light

c. ZONE TEMP, MASTER CAUTION, and AIR COND annunciator lights

41

Inflight, the forward cargo compartment is heated by air drawn around it by the ____. a. outflow valves b. recirculation fan system c. equipment cooling system d. Both B and C

d. Both B and C

42

The temperature selector adjusts the desired zone temperature between a range of approximately ____ degrees. a. 70-80 b. 75-85 c. 65-85 d. 60-80

c. 65-85

43

An "APU High Air Flow" rate is available when ____. a. The airplane is on the ground, the APU Bleed Switch is ON. and either/both Pack Switch(es) are HIGH b. the flaps are down c. both Engine Bleed Air Switches are selected ON and the APU Bleed Air Switch is ON regardless of flap position d. both Pack Switches are selected to AUTO in flight

a. The airplane is on the ground, the APU Bleed Switch is ON. and either/both Pack Switch(es) are HIGH

44

When either the primary or standby pack temperature controller fails, what indications will be displayed? a. PACK and MASTER CAUTION lights only b. MASTER CAUTION, and AIR COND SYSTEM ANNUNCIATOR lights c. PACK, MASTER CAUTION, and AIR COND SYSTEM ANNUNCIATOR lights on recall d. PACK and ZONE TEMP lights

c. PACK, MASTER CAUTION, and AIR COND SYSTEM ANNUNCIATOR lights on recall

45

With both pack switches in AUTO, failure of one pack will cause the remaining pack to switch to high flow unless the aircraft is ____. a. on the ground or inflight with flaps extended b. above Mach .615 c. on the ground or inflight with flaps retracted d. on the ground only

ANSWER 1 (???)

46

Illumination of the forward or aft cabin ZONE TEMP light will cause the associated ____ valve to close. a. emergency relief b. pressure regulating c. trim air modulating d. pack

c. trim air modulating

47

The associated PACK light, Master Caution, and AIR COND annunciator will illuminate when ______. a. pack controller failure and all temperature selectors placed OFF b. pack trips due to overheat or dual pack controller failure c. pack trips caused by primary controller failure d. all temperature selectors are placed OFF

b. pack trips due to overheat or dual pack controller failure

48

What fault indications can be reset with the trip reset button? Select each correct answer. a. PACK b. Windshield OVHT c. BLEED TRIP OFF d. ZONE TEMP

a. PACK c. BLEED TRIP OFF d. ZONE TEMP

49

The ZONE TEMP light, Master Caution, and AIR COND annunciator lights will illuminate for ____ a. an overheat in the duct leading to any of the three zones b. a dual temperature controller failure in the CONTROL CAB zone c. any single temperature controller failure in any zone during a RECALL test d. any of the above

d. any of the above

50

Loss of both primary and standby pack controllers will cause the pack to ____. a. continue to operate without control b. average the temperature output c. shutdown d. open the ram air doors

a. continue to operate without control

51

At the same time this light illuminates, what other indications do you get? a. Only the Master Caution light will illuminate. b. AIR COND will illuminate on the left System Annunciator Panel. c. The right System Annunciator Panel will illuminate AIR COND on recall only. d. The Master Caution light illuminates and the right System Annunciator Panel shows AIR COND.

d. The Master Caution light illuminates and the right System Annunciator Panel shows AIR COND.

52

Both this light and the Master Caution lights are illuminated. What happens to the Left pack? a. If both the Primary and Standby left pack controls fail, then the left pack valve automatically closes. b. The left pack valve will stay open even if the left pack overheats. c. The left pack valve will close if sensors detected excessive temperature in that pack. d. The left pack valve closes due to pack overpressure.

c. The left pack valve will close if sensors detected excessive temperature in that pack.

53

Inflight, with the left pack valve closed due to excessive temperature, what other actions automatically occur in the Air Conditioning System? a. The right pack switches to "high air flow" if flaps are up. b. The right pack switches to "high air flow'' regardless of flap position. c. The right pack switches to "high air flow" only if flaps are extended. d. The right pack stays at "normal air flow" rate un1il the left Engine Bleed Air Switch is selected OFF.

a. The right pack switches to "high air flow" if flaps are up

54

What caused this light to illuminate? The Master Caution fights and the AIR COND light on the System Annunciator Panel also illuminate. a. An overheat has occurred in the AFT Cabin trim air supply duct, and the associated trim air modulating valve opened b. An overheat has occurred in the AFT Cabin trim air supply duct, and the associated trim air modulating valve closed. c. The AFT zone temperature control failed. d. The Right Electronic Controller has failed.

b. An overheat has occurred in the AFT Cabin trim air supply duct, and the associated trim air modulating valve closed.

55

What is now controlling the right Air Conditioning Pack output temperature? a. The right pack output temperature is now controlled by the AFT temp controller only. b. The right pack output temperature is now controlled by the FWD temp controller only. c. The right pack output temperature is now controlled by the average setting of the FWD and AFT Cabin Temperature controllers. d. The right pack output temperature cannot be controlled.

c. The right pack output temperature is now controlled by the average setting of the FWD and AFT Cabin Temperature controllers.

56

What effect will this condition have on the left pack? a. The left pack will produce the coldest of the three controllers. b. The left pack will produce the average of the FWD and AFT cabin temp controllers. c. The left pack will produce the coldest of the FWD and AFT cabin temp controllers. d. The left pack output will be controlled by the CONT CAB temp controller.

d. The left pack output will be controlled by the CONT CAB temp controller.

57

If this light illuminated only on Recall. ____. a. both the Primary and Back-Up Flight Deck Zone Temperature Controllers have failed b. only one of the CONT CAB Zone Temperature Controllers has failed c. both the Right and Left Electronic Controllers have failed d. An overheat has occurred in the CONT Cabin Trim Air Supply Duct and the associated Trim Air Modulating Valve closed.

b. only one of the CONT CAB Zone Temperature Controllers has failed

58

This light illuminated only during Recall and the TRIM AIR Switch is selected ON. Which statement, below, most accurately describes flight deck air conditioning operation. a. The CONT CAB Trim Air Valve is stuck full open. b. One of the CONT CAB Zone Temperature Controllers has failed. c. The left pack produces an air temperature that satisfies the setting controlled by the CONT CAB. Temperature Selector. d. The Aft Cabin Zone Temperature Control Valve is stuck full open.

b. One of the CONT CAB Zone Temperature Controllers has failed.

59

47. If this light illuminated due to an overheat condition in the applicable zone supply duct, the Master Caution Lights will also illuminate; and ____. a. the AFT CAB trim air modulating valve closes b. the FWD CAB trim air modulating valve closes c. the CONT CAB trim air modulating valve closes d. none of the trim air modulating valves close

c. the CONT CAB trim air modulating valve closes

60

***NEED IMAGE*** With this configuration, what temperatures do the packs command? a. The left pack produces an output of 75 degrees and the right pack produces an output of 65 degrees. b. The temperature selectors are ignored. c. Packs produce an air temperature that satisfies the zone which requires the most cooling. d. Temperatures are averaged for each pack output.

c. Packs produce an air temperature that satisfies the zone which requires the most cooling.