Implementation, & Management 14th Edition by
Coronel & Morris
True or False: The aircraft's pressurization is provided by engine bleed air? -
ANSWER: TRUE
Which valve is primarily manipulated to control the pressurization in the cabin of the
aircraft? - ANSWER: Aft Out-Flow Valve
50. How many safety valves are there in addition to the Outflow Valve? - ANSWER: 2
51. How many different modes are there on the pressurization system? - ANSWER: 4.
Auto - Manual - Emer - Dump
52. Manual mode is used on the pressurization system for what reason? - ANSWER:
If Auto mode is INOP
53. Holding the spring-loaded toggle switch to the DECR side accomplishes what? -
ANSWER: Opens the Aft OutFlow Valve DECREASES cabin Pressure... Increases cabin
Altitude..
54. Holding the spring-loaded toggle switch on the pressurization panel to the INCR
side accomplishes what? - ANSWER: Closes Aft Outflow valve which increases cabing
pressure and decreases cabin altitude.
55. If the aft outflow valve becomes inoperative, pressurization can be controlled by
what? - ANSWER: Forward Saftey Valve
56. Lifting the safety guard and rotating the selector knob to the open position
allows the _____ to be fully open during emergency operations? - ANSWER: Forward
saftey valve
57. When the pressurization system is in AUTO and the FWD outflow valve is rotated
to the open position, it causes the AFT outflow valve to _____. - ANSWER: Close
58. Which pressurization mode would be used to depressurize the aircraft most
rapidly? - ANSWER: Dump
59. True or False: When the pressurization system is set to DUMP, the aircraft can
still be pressurized? - ANSWER: FALSE
,60. If bleed air is unavailable in flight, the cabin and flight compartments can be
ventilated with what? - ANSWER: Outside Ram Air
61. The ram air vents used in flight when bleed air is not available are located on
which part of the aircraft? - ANSWER: Dorsal Fin
62. What is the maximum pressure differential pressure permitted by the cabin
pressure controller? - ANSWER: 5.46
63. At 25,000 feet, what cabin altitude gives you 5.46 PSI pressure differential? -
ANSWER: 8000
64. At what altitude does the cabin press warning light illuminate? - ANSWER: 9800
65. During automatic pre-pressurization, the cabin is pressurized how many feet
below takeoff field elevation? - ANSWER: 400
66. The cabin pressure controller is in the takeoff mode for no longer than how many
minutes after takeoff? - ANSWER: 10
67. Selecting the DUMP position on the pressurization system accomplishes what? -
ANSWER: Fully opens the AFT outflow valve
68. When the pressurization mode switch is selected to the MAN position, which of
the following is true? - ANSWER: Selecting Increase on the manual diff switch CLOSES
the Aft outflow valve.
Selecting Decrease on the manual diff switch OPENS the Aft outflow valve.
69. True or False: The MAN DIFF switch on the pressurization panel should be used in
both auto and manual modes of pressurization. - ANSWER: FALSE
70. True or False: The air conditioning packs cool the hot bleed air prior to it entering
the flight compartment and passenger cabin. - ANSWER: TRUE
71. How many turbine shutoff valves are there on the Q400? - ANSWER: 2
72. True or False: Within the air cycle machine, there is a primary and a secondary
heat exchanger. - ANSWER: TRUE
73. The air conditioning system receives bleed air from what sources? - ANSWER:
Either Engines OR APU But not at the same time..
74. True or False: Bleed air can be used from the APU and engines at the same time.
- ANSWER: FALSE
,75. True or False: The ECU modulates the pack Flow Control and Shutoff Valve
position based on Air Conditioning Control Panel selections. - ANSWER: TRUE
76. True or False: If only one pack is operational, air flow will be reduced? - ANSWER:
TRUE. Reduced to 70% of Selection
77. How many different positions do the pack switches have? - ANSWER: 3. OFF -
MANUAL - AUTO
78. If the pack FCSOV malfunctions, it defaults to which of the following positions? -
ANSWER: OPEN
79. If bleed air from the engines is unavailable in flight, where does the air come
from for cabin ventilation? - ANSWER: NACA Vent on Dorsal Fin
80. Where is the vent that allows ram air to enter the aircraft for the air conditioning
system located? - ANSWER: Rear Dorsal Fin
81. When both packs are operating, what is the distribution of the air for the
flightdeck and passenger cabin? - ANSWER: 25% Flight Compartment 75% Cabin
82. When the temperature control is set to full warm, it targets what specific
temperature? - ANSWER: 27 C. 80 F
83. When the temperature control set to full cool, it targets what specific
temperature? - ANSWER: 15 c. 60 F
84. How many fans must fail before a message illuminates on the ED? - ANSWER: 2
fans
85. The Pack FCSOV will open when what happens? - ANSWER: When one pack
switch is selected to Manual or Auto
86. What valves are responsible for controlling the temperature of pack outlet air? -
ANSWER: Bypass Valves
87. When the packs are in the AUTO mode, what does the ECU base temperature
control upon? - ANSWER: Data from the temp sensors in the aircraft zones...
Rotating target temp control selectors sets target temp for that specific zone..
88. When the packs are in the MAN position, what does the ECU do? - ANSWER:
Controls temp based on duct supply instead of compartment temp..
89. Which of the following statements regarding the avionics cooling system is most
accurate? - ANSWER: It is completely automatic and uses three fans to cool the
system..
, 90. How many NiCad batteries are there on the aircraft? - ANSWER: 3
91. How many engine-driven DC starter-generators are there on the aircraft? -
ANSWER: 2
92. How many Transformer Rectifier Units (TRUs) are there on the aircraft? -
ANSWER: 2
93. How many APU generators are there on the aircraft? - ANSWER: 1
94. True or False: The electrical system comprises both a direct current (DC) system
and an alternating current (AC) system. - ANSWER: TRUE
95. True or False: DC power to the electrical system is supplied by two engine-driven
DC generators only. - ANSWER: False. DC power is supplied by three NICAD Batteries,
External power, 2 engine driven dc starter generators, 2 tru's and apu gen.
96. True or False: Circuit breaker panels can be found in the left and right main
landing gear wheel wells. - ANSWER: True
97. How many circuit breaker panels are there in the flight compartment? - ANSWER:
4
98. Which of the following are NOT electrical buses? - ANSWER:
99. The aircraft is equipped with which of the following batteries? - ANSWER: 3
Batteries. (Main - STBY — AUX)
100. Which batteries are used for engine starting when ground power is not
available? - ANSWER: Main/Aux
101. How long will the batteries power the aircraft if normal electrical power fails? -
ANSWER: At Least 60 minutes Some models do 45 minutes or 60 minutes
102. How many battery switches are there? - ANSWER: 4 Switches. - MASTER. MAIN.
AUX. STBY
103. True or False: If the battery master is in the OFF position, the other batteries
can still be used to power the aircraft. - ANSWER: FALSE. (Think MASTER)
104. True or False: When the battery master is in the OFF position, all battery power
is turned off no matter what position the other switches are in. - ANSWER: TRUE
105. If the battery is being charged at a 100% rate of charge, how will it be depicted
on the MFD Battery page? - ANSWER: 1.00