737 800 ATA21 GD

What are the primary parts of the air conditioning (A C) system that have an effect on the supply of fresh air?

• Recirculation

• Zone temperature control

• Air distribution

• Pack flow control

What does the TRIM AIR switch on the cabin temperature panel control?

• Recirculation fans switches

• Zone trim air modulating valves

• Pack cooling system

• Temperature sensors

What does the blue RAM DOOR FULL OPEN light indicate?

• The airplane is on the ground or during climb

• The airplane is at cruise with the ram door not full open

• The airplane is experiencing a pack overheat condition

• The airplane is experiencing a fault condition

What is the function of the reheater in the air conditioning cooling system?

• To regulate the hot bleed air to the air conditioning pack

• To collect and remove moisture from the air before it enters the distribution system

• To lower the temperature of the air in the air conditioning pack below the dew point

• To increase the temperature of the air from the water extractors

Where are the air conditioning pack systems located in the airplane?

• EE compartment

• Distribution compartment

• Air conditioning compartment and wing-to-body fairing

• Flight compartment

What does the equipment cooling amber OFF light indicate?

• The airplane is on the ground or during climb

• The airplane is experiencing a pack overheat condition

• The airplane is experiencing a fault condition

• Low airflow is detected, or both fans are not operating

What is the function of the recirculation system in the air conditioning system?

• To supply conditioned air to the temperature control zones

• To remove moisture and control the temperature of the fresh air

• To recycle approximately 50 percent of the cabin air for ventilation purposes

• To control the quantity of fresh air that flows into the airplane

What is the primary function of the pack cooling system in the air conditioning system?

• To supply conditioned air to the temperature control zones

• To remove moisture and control the temperature of the fresh air

• To control the quantity of fresh air that flows into the airplane

• To recycle approximately 50 percent of the cabin air for ventilation purposes

What are the controls and indications on the air conditioning bleed air controls panel?

• Pack overheat and fault indication

• Recirculation fans switches

• Ram air inlet door indication

• Cooling pack switches

What is the function of the pack zone temperature controllers in the air conditioning system?

• Control cabin temperature control

• Control the flight compartment and passenger compartment temperature

• Control the functions of the air conditioning system

• Control pack cooling temperature