The Hazards of Oxygen
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Questions and Answers

What is the danger of combustible materials in an oxygen-rich atmosphere?

They ignite more rapidly and burn with greater intensity.

What happens when oxygen combines with oil, grease, or bituminous material?

It forms a highly-explosive mixture.

What can result from physical damage to oxygen containers, valves, or plumbing?

An explosive rupture with extreme danger to life and property.

What is the risk of handling liquid oxygen?

<p>Severe 'burns' (frostbite) if it comes in contact with the skin.</p> Signup and view all the answers

Who should be permitted to service aircraft gaseous oxygen systems?

<p>Only qualified and authorized persons.</p> Signup and view all the answers

What are the three general classifications of ground support electrical APUs based on their type of equipment?

<p>Towed, stationary, or self-propelled</p> Signup and view all the answers

How are stationary type ground power units powered?

<p>From the electrical service of the facility</p> Signup and view all the answers

What powers the movable type ground power unit (GPU)?

<p>An onboard engine that turns a generator to produce power</p> Signup and view all the answers

What are the safety precautions that should be observed when servicing an aircraft with a power unit?

<p>All electrical safety precautions should be observed when servicing an aircraft with a power unit. Additionally, the power unit should not be moved when service cables are attached to an aircraft or when the generator system is engaged.</p> Signup and view all the answers

How are the smallest units used to start light aircraft equipped?

<p>The smallest units used to start light aircraft are normally mounted on wheels or skids and are equipped with an extra-long electrical line terminated in a suitable plug-in adapter.</p> Signup and view all the answers

What should be considered when parking a power unit for servicing an aircraft?

<p>When parking a power unit for servicing an aircraft, it should be parked in a way that the service cable is extended to near its full length away from the aircraft being serviced. However, the cable should not be stretched or undue stress should not be placed on the aircraft electrical receptacle.</p> Signup and view all the answers

What precautions should be taken when using ground electrical power units to prevent collision?

<p>Position the unit to prevent collision with the aircraft being serviced or others nearby.</p> Signup and view all the answers

What caution should be exercised while servicing tires or struts with high-pressure nitrogen?

<p>The technician must use caution while performing maintenance.</p> Signup and view all the answers

What steps should be followed when servicing tires or struts with high-pressure nitrogen?

<p>Clean areas before connecting filling hose and do not overinflate.</p> Signup and view all the answers

What are the roles of the two personnel required to service an aircraft with gaseous oxygen?

<p>One person is stationed at the control valves of the servicing equipment, and one person is stationed where he or she can observe the pressure in the aircraft system.</p> Signup and view all the answers

Why is communication between the two people required in the event of an emergency?

<p>Communication is necessary to coordinate their actions and respond effectively to any emergency situations that may arise.</p> Signup and view all the answers

What is the importance of consulting the specific aircraft maintenance manual before servicing any aircraft?

<p>Consulting the manual ensures that the proper types of servicing equipment are used, which is crucial for the safety and proper functioning of the aircraft.</p> Signup and view all the answers

What are the risks associated with servicing aircraft with oxygen during fueling, defueling, or other maintenance work?

<p>The risks include providing a potential source of ignition and the potential for an oxygen-rich environment.</p> Signup and view all the answers

Where should oxygen servicing of aircraft be accomplished?

<p>Oxygen servicing of aircraft should be accomplished outside hangars.</p> Signup and view all the answers

What are the safety precautions that should be taken when servicing aircraft with oxygen?

<p>Do not service aircraft with oxygen during fueling, defueling, or other maintenance work that could provide a source of ignition.</p> Signup and view all the answers

What are the two types of oxygen available on aircraft?

<p>Gaseous and liquid</p> Signup and view all the answers

How is gaseous oxygen stored?

<p>In large steel cylinders</p> Signup and view all the answers

What is the purpose of a liquid oxygen converter?

<p>To store and convert liquid oxygen into a usable gas</p> Signup and view all the answers

What are the three general types of commercially available oxygen?

<p>aviator’s breathing, industrial, and medical.</p> Signup and view all the answers

What kind of oxygen should be used in aircraft breathing oxygen systems?

<p>oxygen marked “Aviator’s Breathing Oxygen” that meets Federal Specification BB-0-925A, Grade A, or its equivalent.</p> Signup and view all the answers

Why is industrial oxygen not suitable for aircraft breathing oxygen systems?

<p>It may contain impurities that could cause sickness in the pilot, crew, and/or passengers.</p> Signup and view all the answers

Why is medical oxygen not suitable for aircraft breathing oxygen systems?

<p>Although pure, it contains water that can freeze in cold altitudes.</p> Signup and view all the answers

What are the dangers of a gaseous oxygen-rich atmosphere?

<p>Combustible materials ignite more rapidly and burn with greater intensity</p> Signup and view all the answers

What are the risks associated with physical damage to oxygen containers?

<p>Explosive rupture with extreme danger to life and property</p> Signup and view all the answers

Why is cleanliness important when handling oxygen?

<p>To prevent the formation of a highly-explosive mixture</p> Signup and view all the answers

What are the consequences of coming in contact with liquid oxygen?

<p>Severe 'burns' (frostbite)</p> Signup and view all the answers

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