Test on Aircraft Engine Exhaust and Reverser Systems
Aircraft Engine Exhaust and Reverser Systems Explained
Test: Aircraft Engine Exhaust Systems
20 questions
Question 1: The low pressure generated by an augmentor tube in a reciprocating engine's cooling system is caused by the static pressure of the exhaust gases.
A. Ano
B. Ne
Explanation: The augmentor tube uses the velocity of the exhaust gases to produce a low pressure, not the static pressure.
Question 2: Does altering the area of the exhaust nozzle affect the compression ratio of a turbine engine?
A. Ano
B. Ne
Explanation: Altering the area of the exhaust nozzle affects the compression ratio, the RPM, the mass airflow through the engine, and the EGT.
Question 3: An internal failure of a muffler would typically lead to a decrease in exhaust back pressure and an increase in engine power.
A. Ano
B. Ne
Explanation: An internal failure of a muffler will increase the exhaust back pressure and cause a loss of engine power.
Question 4: A convergent-divergent exhaust duct is used in some supersonic aircraft to control the gas expansion to produce thrust at supersonic velocities.
A. Ano
B. Ne
Explanation: A convergent-divergent exhaust duct controls the gas expansion as it leaves the engine so the gases will produce thrust at supersonic velocities.
Question 5: Marking an aircraft exhaust system with a lead pencil is acceptable because the graphite strengthens the metal when hot.
A. Ano
B. Ne
Explanation: The graphite in a lead pencil will infuse into the metal when it gets hot, which makes the metal brittle and likely to crack, rather than strengthening it.