Exhaust And Reverser Systems Flashcards
How does a leak appear in an engine exhaust system?
It normally looks like a gray or black feather-shaped streak coming from a crack or from a location where components are not in perfect alignment.
How can you check a reciprocating engine exhaust system for leaks?
Pressurize the exhaust system with discharge from vacuum cleaner and wipe a soap solution over all joints and suspect areas. A leak will cause bubbles to form.
How do the components in the exhaust system of a turbocharged engine allow for expansion and contraction due to heat, and at the same time prevent leakage?
Bellows and ball joints prevent leakage while allowing contraction and expansion.
Should a turbocharged engine be started with the waste gate open or closed?
Open, so as much exhaust as possible will bypass the turbine.
What is the primary function of a reciprocating engine exhaust system?
Its main function is to dispose of the gases with complete safety to the airframe and the occupants of the aircraft. The exhaust system can perform many useful functions, but its first duty is to provide protection against the potentially destructive action of the exhaust gases.
What is a short stack exhaust system?
The short stack exhaust system utilizes open exhaust tubes with no mufflers. The short stack system is generally used on non-supercharged engines and low-powered engines where noise level is bot too objectionable.
