Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

A&P Airframe Oral Practice Questions > Cabin Atmosphere Control Ststems > Flashcards

Cabin Atmosphere Control Ststems Flashcards

1
Q
  1. What is the principal control element in a cabin pressurization system?
A

Cabin outflow valve

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q
  1. What is the purpose of the negative pressure relief valve in the pressurization system?
A

Prevents obtaining cabin altitude which is higher than the aircrafts altitude

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q
  1. What control changes the position of the outflow valve?
A

Pressurization controler

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q
  1. What are the two groups of independent cabin compressors?
A

Positive displacement & centrifugal

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q
  1. What method is used by turbine powered aircraft for pressurization?
A

Bleed air from engine compressor

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q
  1. What limits the degree of cabin pressurization?
A

Structural design of fuselage & capacity of superchargers

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q
  1. Where does the warm air for cabin heating come from in most small reciprocating engine aircraft?
A

Shroud around engine muffler

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q
  1. What are three methods of supplying heat to the conditioned air when the “heat of compression” is not sufficient for this purpose?
A

Fuel burning combustion heaters
Electric heaters
Exhaust gas air to air heat exchangers

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q
  1. What is the function of ventilating air in a combustion heater?
A

Ventilation air carries heat to the places where it is needed

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q
  1. Where does the fuel used in an aircraft combustion heater come from?
A

Aircraft fuel tanks

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q
  1. What controls the temperature in an aircraft cabin that is heated with a combustion heater?
A

Thermostat

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q
  1. What are the sources for ventilation air in a combustion heater?
A

On ground - blower is used for air circulation & heat
In flight - ram air inlets or cabin compressors

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q
  1. What are the components of an air cycle cooling system?
A

Expansion turbine
Air to air heat exchanger
Various valves control airflow

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q
  1. What causes a temperature drop in an air cycle cooling system?
A

Compressed air passes through expansion turbine, turns turbine & undergoes pressure & temperature drop

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q
  1. What are the components in a vapor cycle (Freon) cooling system?
A

Compressor
Condenser
Receiver/dryer
Expansion valve
Evaporator

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q
  1. How do you determine the liquid level in a vapor cycle cooling system?
A

Operate system for 5 min
If bubbles show in sight glass system is low

17
Q
  1. How is the vapor cycle cooling system compressor lubricated?
A

Specialized refrigerant oil

18
Q
  1. What are the components of a continuous flow oxygen system?
A

High pressure cylinder
Pressure regulation reducing valve
Calibrated orifice
Breathing mask

19
Q
  1. What must be done if an oxygen system has been depleted and not recharged within two hours?
A

Purged with dry nitrogen or dry air & oxygen

20
Q
  1. What safety considerations must be observed when filling oxygen cylinders?
A

Filled in oil free environment
Petroleum free clothes, hands, or hair

21
Q
  1. What is the main chemical agent inside of an oxygen generator?
A

Sodium Chlorate

22
Q
  1. How are high and Low pressure oxygen cylinders identified?
A

High pressure (1800-1850psi) - green cylinders marked “Aviator’s Breathing Oxygen” stenciled lengthwise in white 1” letters
Low pressure (400-425psi) - light yellow cylinders

23
Q
  1. What are the three ways supplemental oxygen can be carried in an aircraft?
A

Liquid oxygen
High pressure gas
Chemical candle

24
Q
  1. What is an acceptable lubricant for installing oxygen system fittings?
A

Teflon or water based lubricants

25
Q
  1. What type or grade of oxygen must be used in aircraft?
A

Aviator’s grade breathing oxygen

26
Q
  1. What is a roots blower?
A

Engine driven compressor

27
Q
  1. What is a British Thermal Unit?
A

Unit of heat (BTU)

A&P Airframe Oral Practice Questions (17 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions