Test on Jet Engine and APU Systems
Jet Engine and APU Systems: A Comprehensive Guide for Students
Question 1 of 50%
Test: Aircraft Turbine Engines
20 questions
Question 1: Creep of turbine blades is a condition of permanent elongation.
A. Ano
B. Ne
Explanation: Creep of turbine blades is defined as a condition of permanent elongation of the turbine blades in the study materials.
Question 2: An APU is typically a turbofan engine.
A. Ano
B. Ne
Explanation: The study materials state that an APU is a turboshaft engine.
Question 3: Interconnector tubes between can type combustion chambers are primarily used to equalize air pressure across all chambers during engine operation.
A. Ano
B. Ne
Explanation: Interconnector tubes are used to spread the flame to the combustion chambers that are not equipped with igniter plugs during engine starting.
Question 4: Can compressed air from an APU be sourced from a load compressor driven by a free turbine?
A. Ano
B. Ne
Explanation: Compressed air from an APU can come from a load compressor driven by a free turbine in the engine.
Question 5: A decrease in air density leads to an increase in the thrust of a turbine engine.
A. Ano
B. Ne
Explanation: Air density determines the mass of air that is used by a jet engine. If density decreases, thrust decreases, and vice versa.