737 800 ATA21 TC

What is the function of the A C A U in the temperature control system?

• Regulate temperature based on control signals and operational data

• Control airflow to the zone trim air modulating valves

• Provide overheat protection for the supply ducts

• Regulate the output temperature of the air conditioning packs

Where is the flight compartment cabin temperature sensor assembly located?

• In the ceiling

• In the E and E compartment on the left side

• On the right side of the passenger compartment, near the front

• On the right side of the passenger compartment, near the back

What is the function of the Standby Temperature Control Valves?

• Regulate trim air flow to the three zones

• Control airflow to the zone trim air modulating valves

• Serve dual functions: ice removal in the condenser and pack output temperature control during component failures

• Regulate the output temperature of the air conditioning packs

What is the purpose of the Trim Air Pressure Regulating and Shutoff Valve?

• Serve dual functions: ice removal in the condenser and pack output temperature control during component failures

• Regulate the output temperature of the air conditioning packs

• Control airflow to the zone trim air modulating valves

• Regulate the pressure of airflow to those valves

Where are the forward and aft passenger compartment duct temperature sensors located?

• In the ceiling

• In the right side of the passenger compartment, near the front and back

• In the E and E compartment on the left side

• In the overhead duct

What is the function of the Pack Zone Temperature Controllers (P Z T C)?

• Regulate temperature based on control signals and operational data

• Perform several functions including controlling their respective air conditioning pack and providing automatic standby control for the opposite air conditioning pack

• Control airflow to the zone trim air modulating valves

• Regulate the output temperature of the air conditioning packs

What is the purpose of the Trim Air Modulating Valves?

• Regulate trim air flow to the three zones

• Control airflow to the zone trim air modulating valves

• Serve dual functions: ice removal in the condenser and pack output temperature control during component failures

• Regulate the output temperature of the air conditioning packs

What is the role of the Duct Overheat Switches?

• Control airflow to the zone trim air modulating valves

• Regulate the output temperature of the air conditioning packs

• Provide overheat protection for the supply ducts

• Regulate trim air flow to the three zones

What is the function of the Temperature Controls Panel?

• Regulate the output temperature of the air conditioning packs

• Regulate temperature based on control signals and operational data

• Serve as the air conditioning indication and control interface for the flight crew

• Control airflow to the zone trim air modulating valves

What is the purpose of the Zone Trim Air Modulating Valves?

• Regulate trim air flow to the three zones

• Regulate the output temperature of the air conditioning packs

• Serve dual functions: ice removal in the condenser and pack output temperature control during component failures

• Control airflow to the zone trim air modulating valves