AMS 274 Turbines Final Exam [ACTUAL EXAM] LATEST
VERSION [QUESTIONS AND ANSWERS] WITH PRACTICE
EXAM DETAILED AND VERIFIED FOR GUARANTEED PASS-
LATEST UPDATE 2025 GRADED A (BRAND NEW!!)
What are the most common type of thermocouples used? - ✔✔✔✔✔ Chromel/Alumel
(CA)
What do the older style APUs have in them? - ✔✔✔✔✔ Governors
What is the typical gear down ratio for pneumatic starters? - ✔✔✔✔✔ 25:1
What is the starting sequence for turbine engines? - ✔✔✔✔✔ Starter --> Ignition -->
Fuel
you hear a clicking noise from the pneumatic starter it indicates: - ✔✔✔✔✔ The pawls
re-engaging (normal)
Typical air flow in a pneumatic starter: - ✔✔✔✔✔ Air flows into the starter --> Stator
vanes (designed to choke in order to prevent overspeed) --> Turbine
What was Whittle famous for? - ✔✔✔✔✔ Invented the jet engine
What are the 4 types of gas turbines and typical aircraft they are found on: - ✔✔✔✔✔
1. Turbojet (supersonic)
2. Turbofan (large commercial)
3. Turboprop (larger GA)
4. Turboshaft (helicopters)
What is the Brayton Cyle? - ✔✔✔✔✔ thermodynamic cycle that explains how gas
turbine engines run
Bernoulli's principle: - ✔✔✔✔✔ As the velocity of a fluid increases, the pressure
exerted by the fluid decreases (convergent ducts: velocity increases and pressure
decreases/divergent ducts: velocity decreases and pressure increases)
What company produced the first gas turbine engine in the U.S.? - ✔✔✔✔✔ General
Electric
VERSION [QUESTIONS AND ANSWERS] WITH PRACTICE
EXAM DETAILED AND VERIFIED FOR GUARANTEED PASS-
LATEST UPDATE 2025 GRADED A (BRAND NEW!!)
What are the most common type of thermocouples used? - ✔✔✔✔✔ Chromel/Alumel
(CA)
What do the older style APUs have in them? - ✔✔✔✔✔ Governors
What is the typical gear down ratio for pneumatic starters? - ✔✔✔✔✔ 25:1
What is the starting sequence for turbine engines? - ✔✔✔✔✔ Starter --> Ignition -->
Fuel
you hear a clicking noise from the pneumatic starter it indicates: - ✔✔✔✔✔ The pawls
re-engaging (normal)
Typical air flow in a pneumatic starter: - ✔✔✔✔✔ Air flows into the starter --> Stator
vanes (designed to choke in order to prevent overspeed) --> Turbine
What was Whittle famous for? - ✔✔✔✔✔ Invented the jet engine
What are the 4 types of gas turbines and typical aircraft they are found on: - ✔✔✔✔✔
1. Turbojet (supersonic)
2. Turbofan (large commercial)
3. Turboprop (larger GA)
4. Turboshaft (helicopters)
What is the Brayton Cyle? - ✔✔✔✔✔ thermodynamic cycle that explains how gas
turbine engines run
Bernoulli's principle: - ✔✔✔✔✔ As the velocity of a fluid increases, the pressure
exerted by the fluid decreases (convergent ducts: velocity increases and pressure
decreases/divergent ducts: velocity decreases and pressure increases)
What company produced the first gas turbine engine in the U.S.? - ✔✔✔✔✔ General
Electric
