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PRELIMS > 2204 PRELIMS > Flashcards

2204 PRELIMS Flashcards

1
Q

In order to understand the reasons for controlling the cabin atmosphere
or environment, it is necessary to understand both the characteristics of
the atmosphere and the physiological needs of the persons flying within That atmosphere. Each type of aircraft will have specific requirements
according to the altitudes and speeds at which the aircraft is flown.

A

FLIGHT PHYSIOLOGY

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2
Q

envelops the earth and extends upward for more than
20 miles, but because air has mass and is compressible, the gravity of the earth pulls on it and causes the air at the lower levels to be more dense
than the air above it.

A

The atmosphere

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3
Q

is a physical mixture of gases.

A

The atmosphere

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4
Q

refers to the number of air molecules within a given
volume of the atmosphere.

A

DENSITY OF AIR

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4
Q

extremely important for both animal and plant life.

A

Oxygen

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5
Q

LAYERS OF ATMOSPHERE

A

troposphere
stratosphere
mesosphere
thermosphere
exosphere

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5
Q

COMPOSITION OF ATMOSPHERE

A

Nitrogen — 78 percent
Oxygen — 21 percent
Other gases- 1 percent

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5
Q

the second layer. It starts above the
troposphere and ends about 31 miles (50 km) above ground.
Ozone is abundant here and it heats the atmosphere while also absorbing harmful radiation from the sun.

this is where jet
aircraft and weather balloons fly.

A

stratosphere

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6
Q

closest to Earth’s surface. It is
4 to 12 miles (7 to 20 km) thick and contains half of Earth’s atmosphere.

clouds are found here.

A

troposphere

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7
Q

starts at 31 miles (50 km) and extends to 53
miles (85 km) high.

This layer is hard to study. Jets and balloons don’t go
high enough, and satellites and space shuttles orbit too
high. Scientists do know that meteors burn up in this layer.

A

mesosphere

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8
Q

is a device used to provide oxygen
therapy to people that require greater oxygen concentrations than the levels of ambient air.

A

PORTABLE OXYGEN CONCENTRATOR

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8
Q

is a process in which conditioned air is
pumped into the cabin of an aircraft or spacecraft, in order to create a safe and comfortable environment for
passengers and crew flying at high altitudes.

A

Cabin pressurization

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8
Q

extends from about 56 miles (90 km) to
between 310 and 620 miles (500 and 1,000 km).
Temperatures can get up to 2,700 degrees F (1,500 C) at this altitude.

A

thermosphere

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8
Q

is a pale blue, transparent liquid. Oxygen can be
made liquid by lowering the temperature to below –183 °C or by placing gaseous oxygen under pressure.

A

LIQUID OXYGEN SYSTEM

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9
Q

the highest layer, is extremely thin and is
where the atmosphere merges into outer space. It is
composed of very widely dispersed particles of hydrogen
and helium.

A

exosphere

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9
Q

is a substance that is a gas at normal room
temperature and pressure, and is contained under pressure, usually in a cylinder.

A

COMPRESSED GAS SYSTEM

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9
Q

The top of the mesosphere, called the
____________, is the coldest part of Earth’s atmosphere, with

A

mesopause

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10
Q

pressurization was first used,

A

Lockheed Constellation and the Douglas DC-6.

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10
Q

is a flight hazard because it destroys the smooth air flow
across the aircraft’s lifting and control surfaces.

A

Ice

10
Q

DIFFERENT TYPES OF OXYGEN SYSTEM

A

COMPRESSED GAS SYSTEM
PORTABLE OXYGEN CONCENTRATOR
LIQUID OXYGEN SYSTEM
OXYGEN MASK

11
Q

is a
hazard because it affects the pilot’s ability to see clearly.

A

Rain

12
Q

examples of aircraft icing.

A

Frost,
wing leading-edge ice,
horizontal stabilizer ice,
carburetor ice,
propeller ice,
engine intake
and windshield ice

13
Q

should be operated only when necessary so that
operational expenses, and unnecessary wear can be minimized.

A

Ice protection systems

13
Q

Prevention of ice is called

A

“anti-icing”

13
Q

are similar to those on automobiles except
they must be able to withstand the air loads that are caused by high speeds of operation.

A

WINDSHIELD WIPER SYSTEM

14
Q

Drinkable water on airplanes does not all come in plastic
bottles.

A

POTABLE WATER TANKS

14
Q

the removal of ice is called

A

“de-icing.”

14
Q

high-pressure compressed air is ducted from the engine bleed air system into a plenum chamber.

use bleed air from the turbine engines to
blow high velocity air across the windscreen, preventing rain from obscuring the pilots’ vision.

A

PNEUMATIC RAIN REMOVAL SYSTEMS

14
Q

Ice protection systems should be operated only when necessary so that operational expenses, and unnecessary wear can be minimized.

A

ICE DETECTION SYSTEMS

15
Q

Rain on the windscreen can obstruct the pilot’s visibility during the
landing and taxi phases of flight.

A

RAIN CONTROL SYSTEM

16
Q

CHARACTERISTICS OF OXYGEN

A

colorless,
odorless
and tasteless,

17
Q

consists of a shaped block of a
chemical such as sodium chlorate encased in a protective steel case.

A

solid oxygen generator

18
Q

BASIC TYPES OF REGULATOR

A

LOW DEMAND SYSTEM
CONTINIUOUS FLOW SYSTEM

18
Q

is a pale blue, transparent liquid that will remain in its liquid
state as long as it is stored at a temperature of below 12181.

A

Liquid
oxygen

19
Q

SOURCES OF BLEED AIR

A

APU
GPU
RAM AIR TURBINE
ENGINE

19
Q

COMPONENTS OF APU

A

LOUD COMPRESSOR
ENGINE COMPRESSOR
TURBINE
GEARBOX

20
Q

SIGNS OF HYPOXIA

A

LIGHT HEADEDNESS
DIZZINESS
VISION IMPAIRMENT
SLEEPINESS/DROWSINESS
TINGLINESS/TINGLING

21
Q

PACKS

A

PNEUMATIC AIR CONDITIONING KIT
PRESSURIZED AIR CONDITIONING KIT

22
Q

2 CHARACTERISICS OF GASEOUS OXYGEN

A

SOLID OXYGEN
CHEMICAL OXYGEN

23
Q

TYPES OF POGI

A

JUDE
ANGEL
LOPEZ
CUENO

24
Q

THE SCIENCE THAT DEALS WITH THE WAYS LIVING THINGS FUNCTION

A

PHYSIOLOGY

25
Q

PRODUCT OF INCOMPLETE COMBUSTION OF FUEL

A

CARBON MONOXIDE

26
Q

EXCHANGE OF OXYGEN AND CARBON DIOXIDE

A

RESPIRATION

27
Q

LUNGS AND RESPIRATORY ALLOW US TO BREATHE AND THEY BRING OXYGEN TO OUR BODY IS CALLED WHAT

A

INHALATION

28
Q

A TYPE OF AIR THAT ENTERS THE HEATER FROM OUTSIDE THE AIRCRAFT

A

RAM AIR/AMBIENT AIR

29
Q

DESIGNED TO DELIVER ELECTRIC AND PNEUMATIC POWER

A

APU

PRELIMS (5 decks)

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