Cabin Atmosphere Control Systems Ch. 14 Sec. B Flashcards
1
Q
- Pure oxygen ___ (will or will not) burn.
A
Will Not
2
Q
- Aircraft oxygen systems should never be serviced with any oxygen that is not labeled ___ Oxygon
A
Aviator’s Breathing
3
Q
- Almost all military aircraft now carry oxygen in its ___ (solid, liquid, or gaseous) state.
A
Liquid
4
Q
- On-board oxygen generation systems produce oxygen by drawing air through a patented material called a(n) ____
A
Molecular Sieve
5
Q
- High pressure oxygen cylinders should be painted ___
A
Green
6
Q
- What DOT approval codes should appear on steel aircraft oxygen cylinders?
a.
b.
A
DOT 3AA
DOT 3HT
7
Q
- Type 3AA oxygen cylinders must be hydrostatically tested to pressure every ___ (what amount) of their working ___ years.
A
Five-thirds
Five
8
Q
- The two types of continuous flow oxygen regulators are:
a
b.
A
Manual Type
Automatic Type
9
Q
- The oxygen regulator used by the flight crews of most commercial jet airliners are of the ___ (continuous flow or diluter-demand) -type.
A
Diluter-demand
10
Q
- A rebreather bag type mask is used with a ___ (continuous flow, diluter-demand or pressure-demand)-type regulator.
A
Continuous flow
11
Q
- The oxygen masks that automatically drop from the overhead compartment of a jet transport aircraft are of the ___ (continuous flow or demand)-type.
A
Continuous flow (rebreather)
12
Q
- Most of the rigid plumbing lines that carry high-pressure oxygen are made of ___
A
Stainless Steel
13
Q
- Liquid oxygen systems are referred to using the initials ___
A
LOX
14
Q
- The pressure of the oxygen delivered to the regulator by a liquid oxygen converter is usually ___ psi.
A
70
15
Q
15.___ ___ (what chemical) mixed with appropriate binders and a fuel is used to make oxygen candles.
A
Sodium Chloride
16
Q
- A chemical oxygen candle ___ (does or does not) generate heat.
A
Does
17
Q
- Oxygen candles have a ___ (short or long) shelf life.
A
Long
18
Q
- Once ignited, a chemical oxygen candle ___ (can or cannot) be extinguished.
A
Cannot
19
Q
- When a nitrogen cylinder is installed on the oxygen servicing cart it will face the __
(same or opposite) direction of the oxygen cylinders.
A
Opposite
20
Q
- An oxygen system is considered to be empty when the pressure gets down to ___ psi.
A
50,100
21
Q
- When servicing an aircraft oxygen system from a service cart having several cylinders, always start with the ___ cylinder having the ___ (lowest or highest) pressure.
A
Lowest
22
Q
- Refer to the oxygen servicing chart on page 14-20 [Figure 14-25).
With an outside air temperature of 30°F. an oxygen system must be filled to __ psi to obtain a stabilized pressure of 1,800 psi at 70°F.
A
1725 psi
23
Q
- During oxygen servicing there should be no smoking, open flame, or items which may cause sparks within ___ feet or more.
A
50
24
Q
- Aircraft cabin pressurization is controlled by varying the amount of air that is __ (taken in or allowed to leak out).
A
Allowed to leak out
25
Q
- Smaller reciprocating engine aircraft may obtain air for cabin pressurization from __ bleed air.
A
Engine Turbocharger
26
Q
- Most pressurization systems have what three cockpit indicators?
a.
b.
c.
A
Cabin Altitude
Cabin Rate-of-climb (vertical speed)
Differential pressure indicator
27
Q
- The two modes of operation for cabin pressurization are:
a.
b.
A
Automatic
Manual
28
Q
- The __ (outflow or safety) valve is controlled by the cabin altitude controller.
A
Outflow
