Systems 3 Flashcards
Where is the environmental control panel located?
A. Upper pilot’s instrument panel
B. Lower copilot’s instrument panel
C. Pilot’s side panel
D. Overhead panel
B
What system uses an electric motor to drive its compressor unit and draws a lot of power?
A. Vapor Cycle Cooling Subsystem (VCCS)
B. Air Conditioning Unit (ACU)
C. Forward Compressor Conditioning Unit (FCCU)
D. None of the above
A
What equipment provides ventilation and cooling air for the flight deck?
A. Flight Deck compressor fan
B. Cabin cooling fan
C. Avionics blower
D. Forward and aft evaporator blowers
D
Where is the compressor in the VCCS located?
A. Aft compartment
B. Left engine accessory gearbox
C. Avionics rack
D. Nose
D
T/F: The electric heat subsystem (EHS) can provide heating while airborne.
False
What is the primary means of cabin pressurization and temperature control in flight?
A. Air Cycle Unit (ACU)
B. Vapor Cycle Cooling Subsystem (VCCS)
C. Avionics Blowers
D. Electric Heat Subsystem
A
The ACU uses engine bleed air to provide:
A. Anti-ice to the horizontal stabilizer
B. Pressurization to the aft compartment
C. Heating, cooling and pressurization
D. Hot air to the coffee maker
C
With the BLEED AIR switch in NORM,
A. The temperature will be constant
B. Both engine bleed air valves are open
C. The ACU is not used
D. The right engine bleed air valve is closed
B
T/F: The ACU can operate completely on the air output from one engine.
True
With the MODE switch in AUTO FLDK, cooling will be controlled ________
A. By the crew using the TEMP switch to manually open/close the cabin temp valve
B. By sensors in both the cabin and the ducts
C. on the flight deck only, not in the cabin
D. By temperature sensors in the ducts only
B
The cabin pressurization controls are located ______
A. On the pilot’s instrument panel
B. On the copilot’s instrument panel
C. On the center console
D. On the overhead panel
B
T/F: The CABIN CLIMB gauge shows how rapidly cabin altitude is changing.
True
Wing leading edges are heated by _______
A. Engine bleed air
B. Electrical heaters inside the wings
C. The avionics blowers
D. Wing heating blankets
A
The ICING light will illuminate when _________
A. The ultrasonic prob detects 0.02 inches of ice
B. The AOA vane detects ice in it
C. The pitot heat system is turned off
D. The wing duct temperature falls below 140ºF
A
The WG ICE TEMP LO annunciator illuminates when the wing duct temperature falls below ________
A. 100ºF
B. 140ºF
C. 160ºF
D. 200ºF
B
The engine cowls are heated _________
A. By bleed air
B. By electrical heaters
C. By friction
D. By the horizontal stabilizer anti-ice
A
If the main avionics rack blower fails, flow pressure sensors cause the ______ annunciator to illuminate.
A. ICING
B. AV BLO FAIL
C. AV STBY BLO
D. STBY BLO FAIL
B
The electric heat subsystem (EHS) consists of how many heaters?
A. 1
B. 2
C. 3
D. 4
C
The ACU (Air Cycle Unit) distributes _____ and ____ air.
A. Warm; moist
B. Cool; conditioned
C. Hot; cold
D. Dry; hot
B
The VCCS and ACU are controlled by the crew using the ______
A. Heater select switches on the pilot’s instrument panel
B. Overhead panel
C. Environmental Control Panel
D. Air Conditioning Master Switch
C
The _____ provides preflight, inflight, and post flight air conditioning for the flight deck and avionics rack.
A. EHS
B. Pilot’s electric fan
C. VCCS
D. Swamp cooler
C
The electric heat subsystem needs external power to operate.
A. True
B. False
A
The ACU (Air Cycle Unit) uses _____ to provide heating, cooling and pressurization.
A. The VCCS
B. An electric powered compressor
C. A propane compressor
D. Engine bleed air
D
With the BLEED AIR switch in L ENG, the left valve is _____ and right valve is ______.
A. Closed; closed
B. Open; open
C. Open; closed
D. Closed; open
C