Assignment 4
Textbook Assignment: “Pressurization and Air-Conditioning Systems.” Pages 3-2
through 3-16.
4-1.
4-2.
4-3.
Learning Objective:
Recognize the need for
environmental Control
systems.
Which of the following factors is
of primary importance to the
manufacture of pressurized
aircraft cabins?
1.
The cabin area must be large
enough to accommodate the
pressurized components
2.
The cabin area must be
limited in size in order to
adequately pressurize it
3.
The cabin must be designed to
withstand the necessary
pressure differential
4.
All pressurizing components
must be strategically located
for ease of maintenance
Which of the following components
protects the cabin from excessive
pressures?
1.
Cabin pressure valve
2.
Cabin safety valve
3.
Cabin pressure regulator
4.
Cabin air check valve
On jet aircraft, air for pressur-
izing the cabin is supplied by
which of the following engine
sections?
4-4.
Which of the following statements
best explains the method for
controlling cabin pressure?
1.
A bleed valve is installed in
the cabin air line
2.
A regulator is installed to
limit the air exiting the
cabin
3.
A regulator is installed to
limit the air entering the
cabin
4.
A controlled orifice is
installed in the cabin inlet
air line
4-5.
Which of the following aircraft
systems are classified as
environmental systems?
1. Deicing, defagging, rain
removal, and pressurization
systems
2. Anti–icing, air-conditioning
equipment cooling, and
windshield washing systems
3. Deicing, anti-icing, air-
conditioning, and defogging
systems
4. Defogging, rain removal,
pressurization, and air-
conditioning systems
ITEMS 4-6 THROUGH 4-15 PERTAIN TO THE
S Y S T E M
U S E D
O N
T H E
F - 18
AIRCRAFT.
1. Air inlet
2. Accessory
3. Turbine
4. Compressor
4–6.
When the environmental system on
the aircraft is in operation with
one engine shut down, what
component prevents bleed air from
the operating engine from being
lost when the engine is shut
down?
1.
Air pressure regulation valve
2.
Engine bleed–air check valve
3.
Reverse flow valve
4.
Spring-loaded shutoff valve
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