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Flashcards in Exhaust Systems Deck (23):
1

Name two types of reciprocating engine exhaust systems

Short stock and collector system

2

What drawback in using collector type exhaust systems is more than offset when used on turbocharged engines

Loss of horsepower due to exhaust system back pressure

3

What could result if the internal baffles or diffusers in an exhaust system fail

The flow of the exhaust gasses could be restricted resulting in a loss of engine power

4

What type of exhaust system is used on turbocharged engines

Collector system

5

What kind of material is normally used to make muffler shrouds found in the exhaust system

Stainless steel

6

How do you inspect internal baffles and diffusers of an exhaust system

Disassemble the exhaust system as necessary and visually inspecting the components

7

Why is an exhaust system failure considered a severe hazard

It can result in carbon monoxide poisoning, loss of engine power or fire

8

What could happen if lead, zinc, or galvanized marks are made on an exhaust system

Can cause a change in the structure which could result in cracks when heated

9

What happens if the heat exchanger leaks exhaust gasses into the induction system

There is loss of engine power

10

What is an indication of an exhaust gas leak

A flat gray or sooty black deposit in the area of the leak

11

Where are the most common places to find cracks in an exhaust system

At welding or clamped areas and at the flanges

12

What is a common cause of turbocharger waste gate sticking

Coke deposits or carbon buildup

13

What are exhaust system coke deposits


Excessive carbon buildup

14

Why are turbocharged exhaust system leaks very damaging at high altitudes

Pressure differential will cause the leaks to escape with torch like intensity

15

What is the result of changing the exhaust nozzle area of a turbine engine

engines performance and EGT changes

16

Name the components of a typical turbine exhaust nozzle

Tail cone, exhaust ducts and support struts

17

What is the purpose of thrust reversers

They help decelerate an aircraft after landing

18

How much thrust do the thrust reversers produce compared to the engines full forward thrust

A lot less

19

What are the two most commonly used type of thrust reversers

Clamshell and cascade

20

How are ceramic coated exhaust stocks cleaned

By degreasing only

21

What are the probes in a turbine exhaust pipe used for

measures exhaust gas temperature and pressure

22

What is the purpose of the exhaust system

removes high temperature noxious gases

23

How much thrust do the thrust reversers produce compared to the engines full forward thrust

A lot less