Module 14 Module 14 quiz contains 24 question based on the syllabus for module 14 examination for B2 category. The time limit for the quiz is 30 min. The number of attempts allowed are unlimited. All the best. Name 1. What percentage of air passing through the combustion section is burned 40% 75% 50% None 2. Pure jet engines use variable resistance thermocouples stagnation thermocouples rapid response None 3. An increase in fuel flow through the impeller type fuel flow transmitter is measured by decreasing angle between the two impeller lags turbine drum lags impeller None 4. On a FADEC engine the EEC has mechanical control of the hydro-mechanical fuel control system has electronic control of the hydro-mechanical fuel control unit in all modes has electronic control of the hydro-mechanical fuel control in some modes None 5. Power is adjusted in a gas turbine engine by increasing airflow to the combustion chamber increasing air and fuel flow increasing fuel flow None 6. The fuel metering valve in the hydro mechanical unit of a FADEC system is operated by hydraulic servo pressure fuel servo pressure electrical servo None 7. Turboprop thermocouple probes are rapid response stagnation surface mounted None 8. A thermocouple is constructed of three dissimilar metals welded together two dissimilar metals with an air gap between them two dissimilar metals welded together None 9. A sensing element goes open circuit in a ratiometer. What will be happen? Temperature indicates below ambient Full scale deflection Hairspring takes indicator off scale None 10. A FADEC takes measurements of engine speed temperature temperature and pressure pressure None 11. The air data input to the FADEC fails. The result will be a lack of flight data the FADEC reverts to the failsafe mode uncorrected data from hard wired analogue sensors is utilized None 12. In a thermocouple temperature sensing system, what is the purpose of the compensating resistor? To correct for varying ambient temperatures at the hot junction To standardize the reading for different engine types To correct for varying ambient temperatures at the cold junction None 13. The EEC changes power settings by changing the throttle lever angle changing the airflow input changing the fuel flow input None 14. Reverse thrust can only be selected when the throttle is at the idle stop open 75% power position None 15. The purpose of the LP fuel pump is to ensure the HP fuel pump does not cavitate pump fuel from the aircraft fuel tanks to the engine ensure the fuel flow governor gets enough fuel None 16. FADEC's operate by 1 controlling 1 operating 2 controlling 1 operating 2 units each capable of independent control None 17. In a FADEC system, active control switchover occurs when channels A and B are healthy on shutdown on engine startup only None 18. A thermocouple indicator is basically a millivoltmeter milliameter milliohmeter None 19. Engines having two independent moving systems are complex engines twin spool engines compound engines None 20. on a gas turbine engine, what is the fan driven by HP turbine IP turbine LP turbine None 21. The purpose of a high by-pass ducted fan engine is to reduce size improve efficiency improve thrust None 22. What is an engine stage One compressor rotor and one nozzle guide vane One IGV and one rotor One rotor plus one stator None 23. A thermocouple indication is taken from the difference between the hot junction and the cold junction hot junction cold junction None 24. What is the pressure increase over one stage of a centrifugal compressor? 8:1 5:1 1.2:1 None 1 out of 1
