FREE AND STUDY GAMES ABOUT 2208 FINAL EXAM

PDF Download

FREE AND STUDY GAMES ABOUT 2208 FINAL EXAM

QUESTIONS

Actual Qs and Ans Expert-Verified Explanation

This Exam contains:

-Guarantee passing score -86 Questions and Answers -format set of multiple-choice -Expert-Verified Explanation

Question 1: What is the purpose of a mixing valve in a compressor bleed air air

conditioning system

Answer:

Control the supply of hot cool and cold air Question 2: How should you determine the amount of oxygen in a portable high pressure cylinder

Answer:

Read the pressure gauge mounted on the cylinder Question 3: Which oxygen system employees a regulator that operates only when the user inhales

Answer:

Continuous flow system Question 4: Before a high-pressure oxygen cylinder is serviced it must be correct type and have been

Answer:

Hydrostatically test placed in the proper time interval

Question 5: Which component in an air cycle cooling system does air undergo a pressure and temperature drop

Answer:

Expansion turbine Question 6: After cleaning replacing the filtering elements in a combustion here fuel system the system should be pressurized and

Answer:

All connections checked for leaks

Question 7: Which best describes cabin differential pressure

Answer:

Difference between the ambient and internal air pressure Question 8: What unit is located immediately downstream of the expansion valve and a Freon refrigeration system

Answer:

Evaporator coils Question 9: How can I be determined that a vapor cycle cooling system is charged with the proper amount of Freon

Answer:

Air bubbles in the sight glass disappear Question 10: What is the condition of the refrigerator as it leaves the evaporator of a vapor cycle cooling system

Answer:

Low pressure vapor

Question 11: The air cycle cooling system produces cold air by

Answer:

Extracting heat energy across an expansion turbine

Question 12: And what positions to the bottle be placed when adding liquid Freon to a vapor cycle cooling system

Answer:

Vertical with the outlet at the bottom Question 13: When purging a Freon air conditioning system is important to release the charge at a slow rate what is a reason for the slow rate discharge

Answer:

Prevent access loss of refrigerant oil Question 14: Which section of a turbine engine provides high pressure bleed air to an air cycle machine for prejualization and air conditioning

Answer:

Low or high pressure compressor

Question 15: What is the purpose of pressurizing the aircraft cabin

Answer:

To make human flight possible in a hostile environment of the upper atmosphere Question 16: The position of the thermostatic expansion valve in a vapor cycle cooling system is determined by temperature and the pressure of the

Answer:

Freon in the outlet of the evaporator Question 17: Primary difference between aviation breathing oxygen and other types of commercially available compressed oxygen is that

Answer:

Aviation breathing oxygen has had all the water vapor removed Question 18: An operating vapor cycle cooling system if the two lines connected to the expansion valve are essentially the same temperature what does this indicate

Answer:

The expansion valve is not metering properly

Question 19: What component in a vaporcycle cooling system will most likely be at fault if a system would not take a free on charge

Answer:

Expansion valve

Question 20: The purpose of a dump valve a pressurized aircraft has to relieve

Answer:

Are positive pressure from the cabin Question 21: What is a steady stream of bubbles and the Cait when servicing a vapor cycle air conditioning system

Answer:

The system is under charged Question 22: When charging a vapor cycle cooling system after evacuation the low pressure gauge fails to come out of a vacuum what is indicated

Answer:

Blockage in the system Question 23: If the cabin rate of climb is too great the control should be adjusted to cause the

Answer:

Outflow valve to close faster Question 24: The point at which Freon flowing through a vapor cycle cooling system absorbs heat and changes from a liquid to a gas is the

Answer:

Evaporator Question 25: When an aircraft oxygen system has developed a leak the lines of fitting should be

Answer:

Bubble tester with a special soap solution manufacture specifically for that purpose

Question 26: Hey contaminated oxygen system is normally purged with

Answer:

Oxygen