AMT 2204

Question 1

A condition in which the body as a whole or a region of the body is deprived of adequate oxygen supply.

Answer 1

HYPOXIA

Question 2

Any time the body is deprived of the required amount of oxygen, it will develop ________

Answer 2

hypoxia

Question 3

Two of the more common first indications of hypoxia occur at about
____________ altitude

Answer 3

ten thousand feet

Question 4

is made up of the heart, lungs, arteries, and veins. This system transports food and oxygen to the cells of the body

Answer 4

cardiovascular system

Question 5

WHAT ARE THE CAUSES OF HYPOXIA?

Answer 5

The level of oxygen in the blood becomes too low (hypoxemic respiratory failure).
* The level of carbon dioxide in the blood becomes too high (hyperbaric respiratory failure).
* Decrease inspired oxygen
* Hypoventilation
* V/Q Mismatch

Question 6

A common cause of hypoxemic respiratory failure is an __________

Answer 6

abnormality of the lung tissue

Question 7

can also occur if blood flow through the lungs becomes abnormal, as happens when a blood clot blocks a lung artery.

Answer 7

Hypoxemic respiratory failure

Question 8

WHAT ARE THE COMMOM SYMPTOMS OF HYPOXIA?

Answer 8

• Changes in the color of your skin, ranging from blue to cherry red
• Confusion
• Cough
• Fast heart rate
• Rapid breathing
• Shortness of breath
• Sweating
• Wheezing

Question 9

is the product of incomplete combustion of fuels which contain carbon and is found in varying amounts in the smoke and fumes from burning aviation fuel and lubricants. is colorless, odorless and tasteless.

Answer 9

Carbon monoxide

Question 10

When carbon monoxide is taken into the lungs, it combines with the ________ in the blood.

Answer 10

hemoglobin

Question 11

The _______________ as altitude increases makes it more difficult to get the proper amount of oxygen.

Answer 11

decrease in pressure

Question 12

is caused by inhaling combustion fumes.

Answer 12

Carbon monoxide poisoning

Question 13

Early symptoms of carbon monoxide poisoning are

Answer 13

sluggishness, a feeling of being too warm, and a tight feeling across the forehead

Question 14

what If carbon monoxide poisoning is suspected?

Answer 14

the heater should be shut off and all possible vents opened

Question 15

is the lowest layer of Earth’s atmosphere and site of all-weather on Earth. The air here is 78% nitrogen and 21% oxygen. The last 1% is made of argon, water vapor, and carbon dioxide.

Answer 15

troposphere

Question 16

are available that can be installed on the instrument panel. These are simply small containers of a chemical that changes color, generally to a darker color, when carbon monoxide is present.

Answer 16

Carbon monoxide detectors

Question 17

is the second-lowest layer of Earth’s atmosphere. It lies above the troposphere and is separated from it by the tropopause. atmospheric pressure at the top of the stratosphere is roughly 1/1000 the pressure at sea level.

Answer 17

stratosphere

Question 18

region of the upper atmosphere between about 50 and 80 km (30 and 50 miles) above the surface of the Earth. The percentage of oxygen, nitrogen, and carbon dioxide in the air in the mesosphere is essentially the same as that in the levels of the Earth’s atmosphere immediately above the Earth’s surface.

Answer 18

Mesosphere

Question 19

is directly above the mesosphere and below the exosphere. Air in the lower atmosphere is mainly composed of the familiar blend of about 80% nitrogen molecules (N2) and about 20% oxygen molecules (O2).

Answer 19

thermosphere

Question 20

is the outermost layer of the atmosphere. it is mainly composed of extremely low densities of hydrogen, helium and several heavier molecules including nitrogen, oxygen and carbon dioxide closer to the exobase.

Answer 20

exosphere

Question 21

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.

Answer 21

Cabin pressurization

Question 22

The air that forms our atmosphere allows people to live and breathe easily at low altitudes, but flight is most efficient at high altitudes where the air is thin and the aerodynamic drag is low.

Answer 22

AIRCRAFT PRESSSURIZATION SYSTEM

Question 23

In order for humans to fly at these altitudes, the aircraft must be _________ and _________

Answer 23

pressurized - heated

Question 24

The pressurization of modern aircraft is achieved by

Answer 24

directing air into the cabin.

Question 25

When pressurization was first used, it was for large aircraft such as the _____________ and the ___________.

Answer 25

Lockheed Constellation - Douglas DC-6

Question 26

is a good source of air to pressurize the cabin, and since this air is quite hot it is used to provide heat as well as pressurization.

Answer 26

compressor in a turbine engine

Question 27

flows through the nozzle of a jet pump at high velocity and produces a low pressure that draws air in from the outside of the aircraft.

Answer 27

Compressor bleed air

Question 28

are used by many modern turbine-engine aircraft to provide both pressurization and temperature control.

Answer 28

Air Cycle Machines

Question 29

are sent to the cabin pressure controller from the cockpit control panel to set the mode of operation, the desired cabin altitude and either standard or local barometric pressure.

Answer 29

Electrical signals

Question 30

regulates and maintains cabin pressure, and the rate of cabin pressure change, as a function of settings on the control panel.

Answer 30

pressurization control system

Question 31

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

Answer 31

Ice

Question 32

_____ on wings and other surfaces decreases their ability to produce lift, increases the weight of the aircraft, and increases induced drag.

Answer 32

Ice

Question 33

examples of aircraft icing.

Answer 33

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

Question 34

prevention of ice

Answer 34

anti-icing

Question 35

the removal of ice

Answer 35

de-icing

Question 36

forms on the surface of non-hangar aircraft when the temperature of the air drops at night and moisture is present.

Answer 36

Frost

Question 37

As an aircraft flies into clouds with the outside air temperature near freezing, it will likely collect ____.

Answer 37

ice

Question 37

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

Answer 37

Ice protection systems

Question 38

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

Answer 38

Rain

Question 39

normally beads up on the windscreen while the propeller slipstream or relative wind blows it off.

Answer 39

rain

Question 40

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

Answer 40

Windshield wipers

Question 41

When the windshield wiper switch is turned ____, the control circuit is open. However, the motor continues to run until the blades are driven to the PARK position.

Answer 41

off

Question 42

Common problems encountered with the use of windshield wipers include insufficient ________________.

Answer 42

wiper pressure

Question 43

________________ on airplanes does not all come in plastic bottles. Most planes are equipped with potable water tanks which supply drinkable water and water for the lavatories.

Answer 43

Drinkable water

Question 44

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

Answer 44

pneumatic rain removal systems

Question 45

At ________________ (generally above 10,000 feet) the air is thin enough to require supplemental oxygen for humans to function normally.

Answer 45

higher altitudes

Question 46

As an aircraft climbs from sea level to increasingly high altitudes, the crew and passengers move further and further from an ideal physiological condition.

Question 47

is colorless, odorless and tasteless, and it is extremely active chemically. It will combine with almost all other elements and with many compounds.

Answer 47

Oxygen

Question 48

is produced commercially by liquefying air, and then allowing nitrogen to boil off, leaving relatively pure oxygen.

Answer 48

Oxygen

Question 49

Most of the aircraft in the general aviation fleet use gaseous oxygen stored in steel cylinders under a pressure of between 1,800 and 2,400 psi.

Answer 49

Most of the aircraft in the general aviation fleet

Question 50

The main reason for using gaseous oxygen is

Answer 50

its ease of handling and the fact that it is available at most of the airports used by these aircraft.

Question 51

A convenient method of carrying oxygen for emergency uses and for aircraft that require it only occasionally is the _______________.

Answer 51

solid oxygen candle

Question 52

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

Answer 52

solid oxygen generator

Question 53

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.

Answer 53

Liquid oxygen

Question 54

Liquid oxygen installations are extremely economical of space and weight and there is no high pressure involved in the system.

Answer 54

Liquid oxygen installations

Question 55

Actual servicing or repair of the oxygen system itself must be accomplished in accordance with the manufacturer's instructions

Answer 55

Actual servicing or repair of the oxygen system

Question 56

consist of the tanks the oxygen is stored in, regulators to reduce the pressure from the high pressure in the tanks to the relatively low pressure required for breathing, plumbing to connect the system components, and masks to deliver the oxygen to the crewmember or passenger.

Answer 56

GASEOUS OXYGEN SYSTEMS

Question 57

Storage Cylinders- Most military aircraft at one time used a low-pressure oxygen system in which the gaseous oxygen was stored under a pressure of approximately 450 psi in large yellow-painted low pressure steel cylinders.

Answer 57

Storage Cylinders

Question 58

almost all gaseous oxygen is stored in green painted high- pressure steel cylinders under a pressure of between _______and ________ psi.

Answer 58

1,800 and 2,400 psi.

Question 59

All oxygen cylinders must be stamped near the filler neck with the approval number, the date of manufacture, and the dates of all of the hydrostatic tests.

Answer 59

All oxygen cylinders

Question 60

Oxygen cylinders may be mounted permanently in the aircraft and connected to an installed oxygen plumbing system.

Answer 60

Oxygen cylinders

Question 61

On a hot day, the temperature inside a parked aircraft can cause ________________________________________________

Answer 61

the pressure in an oxygen cylinder to rise to dangerous levels.