Question 1
Answer
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Full authority digital engine control
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Full authority duplex engine control
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Forward authority duplex control
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None of the above
Question 2
Question
Regarding gearboxes and drives, which of the following ones is not one of them?
Answer
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Internal gearbox
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Intermediate gearbox
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Main gearbox
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Radial driveshaft
Question 3
Question
Lubrication system functions, which of the following ones is not true?
Answer
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Provide cooling for the bearings
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Protect the lubricated components
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Maintain it´s properties under extremely cold temperatures
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Collect foreign matter
Question 4
Question
In the oil system, it´s basic components are:
Answer
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A. Oil tank, oil pumps
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B. Heat exchanger, magnetic chip detector
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C. A, B and air separator
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D. C but without magnetic chip detector
Question 5
Question
Regarding air starting system
Answer
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It is not used in commercial aviation anymore
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It is high-tech and thus very expensive
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The starter motor contains a turbine
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All engines use a starter motor, but they can use another starting system if the pilot in command decides so
Question 6
Answer
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Low energy ignition is used for starting all jets
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Hig energy ignition is used for starting all jets
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Low energy ignition is used in planes with MTOW<5700 kg and high energy ignition is used in heavier planes
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Low energy ignition is used in planes commercial and high energy ignition is used in fighter planes
Question 7
Question
Regarding the ice protection system, mark out the incorrect one
Answer
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Must avoid air restrictions due to ice
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Turbojet engines use hot air supply
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There is also a electrical power system
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It can never happen a combination of them because of the amount of energy required to maintain them while flying
Question 8
Question
Fire protection systems
Answer
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Never use external air cooling because the oxygen in the air could rekindle the fire
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Use fire resistant materials in structural elements but not on pipes
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Locate the fuel pipes in cold zones separated by fireproof bulkheads
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Locate the fuel pipes in hot zones and protect them with fireproof bulkhead
Question 9
Question
Q1. Choose the correct answer:
Answer
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A. Aviation fuels are obtain by fractional distillation of crude oil
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B. Aviation fuels are obtain by solidification of crude oil
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C. Aviation gasoline and kerosene are light distillates
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D. A and C are correct
Question 10
Question
Q2. Detonation can be caused by:
Answer
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A. An incorrect mixture strength
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B. An incorrect fuel grade
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C. A combination of high pressure and temperature
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D. All are correct
Question 11
Question
Q3. Aviation Gasoline can be classified in:
Answer
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A. Grade 80 (red)
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B. Grade 90 (green)
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C. Grade 100 ZZ (blue)
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D. A and B are correct
Question 12
Question
Q4. Related to rich mixtures, choose the incorrect answer:
Answer
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A. From 18:1 to 15:1
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B. Leads to an incomplete combustion due to the fuel excess
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C. Used for high power or low power (idle) settings
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D. Fuel excess acts as a coolant
Question 13
Question
Q5. Related to lean mixtures, choose the correct answer:
Answer
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A. From 18:1 to 15:1
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B. Leads to an incomplete combustion due to the fuel excess
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C. Used for high power or low power (idle) settings
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D. Fuel excess acts as a coolant
Question 14
Question
Q6. Related to the mixture ratio, chemically correct or Stoichiometric ratio is:
Question 15
Question
Q7. The main properties of gas turbine fuels are:
Answer
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A. Thermal instability, low freezing point, low sulfur content
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B. Thermal stability, high freezing point, low sulfur content
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C. Thermal stability, low freezing point, high sulfur content
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D. Thermal stability, low freezing point, low sulfur content
Question 16
Question
Q8. The most used gas turbine fuel is:
Question 17
Question
Q1. Components of the oil system:
Answer
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A. Magnetic chip detector A,D,B,A,B,D,B,C
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B. Squeeze film bearing
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C. Air separator
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D. All above and filters and strainers
Question 18
Question
Q2. Types of ignition units:
Question 19
Question
Q3. Igniter plugs:
Answer
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A. Air gap type
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B. Surface discharge
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C. Both are right
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D. All are wrong
Question 20
Question
Q4. How can we detect the particles in the lubrication system?
Question 21
Question
Q5. Which are the factors to select an engine for a combat aircraft:
Answer
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A. Flight speed, agility, flight envelope, STOL, VTOL,...
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B. Number of air intakes, flight envelope, agility
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C. Wing and tail type, agility, flight speed
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D. B and C are correct
Question 22
Question
Q6. A way of avoiding contrail concentration is:
Question 23
Question
Q7. The highest concentration of CO2 due to aircraft is located:
Answer
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A. Near the equator at 2000ft
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B. Between Paralels 30 and 60 (N) in the tropopause
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C. Between Paralels 30 and 60 (S) in the tropopause
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D. Over Australia
Question 24
Question
Q8. Emissions because of aircraft and its engines contribute
Answer
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A. 2-3% of the CO2 global production
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B. 10% of the global production
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C. Less than 0,1%
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D. Emissions in aircraft are only N2 and H2O
Question 25
Question
Q9. Lobe type nozzles are designed to:
Answer
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A. Improve the asthetics of the engine
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B. Reduce the noise level
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C. Control the flow of air to increase the thrust
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D. The main objective is to avoid possible strike damages
Question 26
Question
Q10. Acoustic Absorbent sheets in engines:
Question 27
Question
Q11. Throughout history the noise level has:
Question 28
Question
Q12. Choose the correct option:
Answer
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If combat regime is used for long times pc is lighter option (interdiction) but if combat regime si used for short times no pc is the best option (future)
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If combat regime si used for short or long times pc is lighter option always.
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If combat regime is used for short times pc is lighter option (interdiction) but if combat regime si used for long times no pc is the best option (future)
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None of them is correct