Engine Exhaust & Reverser Systems Flashcards
1
Q
- What are two types of reciprocating engine exhaust systems?
A
Short stack
Collector system
2
Q
- What are the possible hazards of exhaust system failure?
A
Carbon monoxide poisoning of crew & passengers
Partial or complete loss of engine power
Aircraft fire
3
Q
- What type of exhaust system is generally used on low powered non supercharged engines?
A
Short stack system
4
Q
- What type of exhaust system is used on turbocharged engines?
A
Collector system
5
Q
- What type of exhaust system creates a high exhaust back pressure?
A
Collector system
6
Q
- What is the purpose of a reciprocating engine exhaust system?
A
Removes heat & gases from engine
7
Q
- What happens when lead, zinc, or galvanized marks are made on an exhaust system?
A
Weakens metal
8
Q
- What type of visual indication can usually be seen in the area of an exhaust system leak?
A
Sooty black carbon streaks
9
Q
- How are ceramic coated exhaust stacks cleaned?
A
Degreasing method only
10
Q
- What is the usual cause of muffler and heat exchange failures?
A
Thermal stress & vibrations
11
Q
- What is the most common form of damage in exhaust systems?
A
Cracks
12
Q
- What should be the position of the waste gate when starting and engine?
A
Fully open
13
Q
- Where are exhaust manifold and stack failures most likely to occur?
A
Welds
Flanges
Clamped points in system
14
Q
- what is a common cause of the waste gate unit malfunctioning in turbocharged stystem?
A
Carbon buildup
15
Q
- What factors are affected if the area of the exhaust nozzle of a turbine singe is changed?
A
Size of nozzle changes engine performance and exhaust gas temperature
16
Q
- Why are thrust reversers not normally used during ground operations?
A
Danger blowing FOD into intake stream
17
Q
- What are the probes in a turbine exhaust pipe used for?
A
Measure EGT & pressure
18
Q
- Why do you disassemble & inspect the collector type exhaust?
A
Exhaust failure carbon monoxide positioning of crew & passengers
19
Q
- What is the purpose of the waste gate on a turbo charged exhaust?
A
Controls amount of exhaust gas forced though turbo charger turbine
20
Q
- Name two types of thrust reversers.
A
Mechanical blockage
Aerodynamic blockage
