2011 Cqt-air Conditioning And Pressurization
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- 1.What is the automatic feature associated with the ACM PACK HOT caution light in a DHC-8 100?
- A.
Temperature is selected to max cool
- B.
All engine bleeds to the pack shut off
- C.
Temperature is selected to max warm
- D.
Pack temperature control valves areclosed
- 2.What happens when a #1 or #2 BLEED HOT caution light illuminates?
- A.
The pack is shut down
- B.
A full cold override signal is sent
- C.
That bleed is shut off
- D.
Nothing
- 3.A FLT COMPT DUCT HOT caution light causes which set of valves to drive to full cool position?
- A.
Diverter Valve (mod 8/0563)
- B.
Pack Temperature Control Valves
- C.
Trim Valves
- D.
None of the above
- 4.The AIR COND PACK HOT caution light indicates that excessive temperature is being sensed where?
- A.
Flight Compartment Duct
- B.
Cabin Duct
- C.
Compressor DischargeOvertemperature Sensor
- D.
ACM
- 5.Can the Flight Compartment Fan (pre mod 8/1538) be switched on in flight?
- A.
Yes
- B.
No
- 6.If a cooler cabin temperature is selected, what will the ACM pack bypass valve do?
- A.
Open
- B.
Close
- C.
Nothing
- 7.Can the crew select cabin temp in the "manual" mode while the flight compartment temp controller is in the auto mode?
- A.
Yes
- B.
No
- 8.Can pressurization be maintained with only one bleed source available?
- A.
Yes
- B.
No
- 9.Is the cargo area pressurized?
- A.
Yes
- B.
No
- 10.Does the pressurization toggle switch have to be in manual for the manual increase knob to work?
- A.
Yes
- B.
No
- 11.What is the difference between the forward outflow selector and the manual increase knob?
- A.
Nothing
- B.
They both open the forward outflowvalve, but the manual increase knob allows a modulated opening
- C.
The forward outflow selector controlsthe forward outflow valve, the manual increase knob controls the aft outflowvalve
- D.
Fwd outflow selector is always active;manual increase knob only activateswith the auto/man/dump switch inmanual
- 12.How is the rear outflow valve powered?
- A.
Suction created by the 18 PSI de-icesystem air flowing through a venturi
- B.
Left Main DC Power
- C.
Ram Air
- D.
Both A & B
- 13.What happens to the rear outflow valve upon touchdown?
- A.
It Opens
- B.
It Closes
- 14.What does the "fault" light indicate on the pressurization panel?
- A.
An outflow valve is faulty
- B.
The Air Data Computer is faulty
- C.
The Pressurization Computer isexperiencing a fault or conducting aself test
- D.
None of the above
- 15.What happens when the pressurization toggle switch is selected to the "manual" position?
- A.
The pressurization computer isdeactivated and pressurization isaccomplished by manually modulatingthe rear outflow valve
- B.
The rear outflow valve closes andpressurization is accomplished bymodulating the forward outflow valve
- C.
The rear outflow valve closes andpressurization is accomplished via thecab set switch and alt knob
- D.
None of the above
- 16.What occurs when the pressurization toggle switch is selected to the "auto" position?
- A.
The rear outflow valve is closed
- B.
The rear outflow valve is controlled bythe pressurization computer
- C.
The rear outflow valve opens fully
- D.
None of the above
- 17.What does the CABIN PRESS warning light indicate?
- A.
That cabin altitude has exceeded 8,000ft.
- B.
That cabin altitude has exceeded10,000 ft.
- C.
That the cabin pressure controller isfaulty
- D.
None of the above
- 18.What is the position of the rear outflow valve when the aircraft is on the ground? (Engines running, bleeds on)
- A.
Open
- B.
Closed
- 19.When controlling pressurization manually, the manual increase knob should be turned which way to decrease cabin altitude?
- A.
Clockwise
- B.
Counterclockwise
- 20.Are both outflow valves capable of automatic pressure relief at 5.8 +/- .15 PSI?
- A.
Yes
- B.
No
- 21.What should the cabin altitude be if you are flying at FL 250?
- A.
5000
- B.
7000
- C.
8000
- D.
1000
- 22.Will the aircraft pressurize with the bleeds off?
- A.
Yes
- B.
No
- 23.What is the cabin rate of change when the rate knob is at the index?
- A.
500 fpm up 500 fpm down
- B.
500 fpm up and 300 fpm down
- C.
300 fpm up and 300 fpm down
- D.
300 fpm up and 500 fpm down
- 24.How do we change from fully automatic mode to semi-automatic mode for the pressurization system?
- A.
Cab Set/Norm switch to Cab Set,Auto/Man/Dump to Man
- B.
Cab Set/Norm switch to Cab Set
- C.
Cab Set/Norm switch to Norm
- D.
Cab Set/Norm switch to Norm,Manual increase knob, adjust asrequired
- 25.What does the MIN/MAX rheostat on the bleed control panel do?
- A.
It regulates the pack bypass valves
- B.
It adjusts the temperature levelmaintained by the automatictemperature controller
- C.
It adjusts the amount of air flow to theACM
- D.
It modulates the rear outflow valves
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