Preguntas Lección 14

Description

Quiz on Preguntas Lección 14, created by Jose Caamaño on 17/04/2018.
Jose Caamaño
Quiz by Jose Caamaño, updated more than 1 year ago
Jose Caamaño
Created by Jose Caamaño about 6 years ago
20
2

Resource summary

Question 1

Question
Q1. In a piston engine, if MAP (manifold pressure) and RPM are kept constant with the ascend:
Answer
  • The power decreases due to temperature descent
  • The power increases due to temperature descent
  • The power remains constant too
  • It is not possible to maintain both MAP and RPM constant with ascend

Question 2

Question
Q2. Select the correct answer about piston engines performances:
Answer
  • A. Rated power is the maximum horsepower at which the engine is approved for continuous operation.
  • B. Critical altitude is the maximum altitude at which the engine maintains a given horsepower output. It is decreased by turbochargers and superchargers.
  • C. Critical altitude is the maximum altitude at which the engine maintains a given horsepower output. It is increased by turbochargers and superchargers.
  • D. A and C are true.

Question 3

Question
Q3. About the piston engines operation, which of these is not a power control parameter:
Answer
  • Rotational speed (RPM)
  • Mixture
  • Thrust
  • MAP (manifold pressure)

Question 4

Question
Q4. Which of the following is not a rating exclusive for jet military aircrafts:
Answer
  • Maximum climb rating
  • Maximum dry rating
  • Combat or contingency rating
  • Intermediate or military rating

Question 5

Question
Q5. Which of the following is a management function of FADEC:
Answer
  • Automatic start-up
  • Calculation and application of thrust limits
  • Manual thrust management according to lever position
  • All of them

Question 6

Question
Q6. About turbopropeller control, which of the engine operation configurations does not have a separated condition lever to select RPM:
Answer
  • Single-lever engine operation
  • Two-levers (for fixed turbine)
  • Three-levers (for free turbine)
  • Alpha or Power engine operation

Question 7

Question
Q7. What is not a ground function of the APU (Auxiliary Power Unit)?
Answer
  • Source of electrical power
  • Source of pressurized air
  • Hydraulic power
  • Fuel injection and ignition

Question 8

Question
Q8. Select the correct answer about jet engines performances (considering that all of the parameters not named remain constant):
Answer
  • With an increase of altitude, there is a decrease of temperature with a corresponding increase of density, and therefore there is an increase of thrust.
  • With a decrease of temperature, there is an increase of thrust if RPM decrease.
  • The greater inlet momentum drag, the greater thrust.
  • The greater the ram effect, the greater the thrust.
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