93.Semana de Mata (5 y 8 de marzo)

Ismael Vázquez
Quiz by Ismael Vázquez, updated more than 1 year ago
Ismael Vázquez
Created by Ismael Vázquez almost 2 years ago
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Description

AVIÓNICA Quiz on 93.Semana de Mata (5 y 8 de marzo), created by Ismael Vázquez on 04/03/2018.
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Resource summary

Question 1

Question
Pneumatics systems are used for:
Answer
  • Environmental control / Air conditioning / Cargo compartment heating
  • Ice protection
  • Water tank pressurization and toilet waste
  • All of the above are correct

Question 2

Question
Related to the air bleed system
Answer
  • There must exist an engine bleed air control system to obtain the required pressurized air at any moment
  • There must not exist an engine bleed air control system to obtain the required pressurized air at any moment
  • It is recommended to have an engine bleed air control system to obtain the required pressurized air at any moment
  • None of the above are correct

Question 3

Question
How many types of engine bleed systems exist?
Answer
  • Four: Intermediate and High pressure mixed system, Low and High pressure mixed system, High pressure system, Extremely Low pressure system.
  • Four: Intermediate and High pressure mixed system, Low and High pressure mixed system, High pressure system, Three flow mixed system.
  • Three: Intermediate and High pressure mixed system, High pressure system, Three flow mixed system.
  • Three: Intermediate and High pressure mixed system, Low and High pressure mixed system, Extremely High pressure system.

Question 4

Question
High Pressure system is normally used in:
Answer
  • Helicopters
  • Commercial aviation
  • Fighter aircrafts
  • Gliders

Question 5

Question
Three flow mixed system is normally used in:
Answer
  • Helicopters
  • Commercial aviation
  • Fighter aircrafts
  • Gliders

Question 6

Question
Related to Pneumatics security:
Answer
  • Compressor bleedings must have limitation valves
  • Bleeding P and T must be the lowest compatible with the system
  • A and B are correct
  • A and B are incorrect

Question 7

Question
The buckling is a phenomenon that appear in (i) structures subjected to (ii) loads
Answer
  • A shutoff valve in each bleeding line must be installed (fire protection)
  • Bleeding shutoff valve must NOT be close to the engine
  • A and B are correct
  • A and B are incorrect

Question 8

Question
Related to Pneumatic power systems:
Answer
  • A. Pneumatic power systems are similar to hydraulic power systems but there is no return line.
  • B. Pneumatic power systems are very common
  • C. Pneumatic power systems are not common
  • D. A and C are correct

Question 9

Question
What was the problem with the “Harrier I” pneumatic vertical control system?
Answer
  • It didn’t have enough power to take off
  • It was too heavy to take off without horizontal speed
  • It was impossible to completely decelerate the horizontal speed for landing
  • The system was completely manual and required outstanding pilot skills

Question 10

Question
What year the first flight with artificial oxygen was?
Answer
  • 1902
  • 1945
  • 1913
  • 1964

Question 11

Question
What was the problem with the pressurization cabin in the “Comet I”?
Answer
  • Its cabin did not pressurize
  • It was really cold above 6500 m
  • It was really hot below 6500 m
  • The pressure inside the cabin was the surface pressure during all the flight

Question 12

Question
One of the advantages of using exhaust gases for the conditioning system is…
Answer
  • It’s easiness
  • It has high thermal efficiency
  • You get more engine power
  • You don´t need a heat exchanger

Question 13

Question
. At the beginning, the scientists wanted to have
Answer
  • 1 bar of pressure during all the flight
  • 1 bar of pressure just for take-off
  • 1 bar or pressure just for landing
  • Different pressure values throughout the flight

Question 14

Question
. Electronic components’ working range is:
Answer
  • From -40ºC to 90ºC
  • From 0º C to 90ºC
  • From 40ºC to 90ºC
  • From 25ºC to 50ºC

Question 15

Question
The combustion heater:
Answer
  • Is perfect for aviation
  • Is a cooling system
  • Has a fuel consumption of 5 US gal/h
  • Is dangerous for aviation

Question 16

Question
Maintaining 1 bar of pressure during a flight
Answer
  • A. Presented the problem of explosive decompression
  • B. Presented the problem of fatigue as a result of loads cycles (pressures)
  • C. Presented the problem of fatigue in the crew
  • D. A and B are true

Question 17

Question
Related with the lubricant oil, fuel in an aircraft…
Answer
  • It heats up the lubricant oil.
  • Has the same temperature than the lubricant fluid.
  • It helps to cool the lubricant oil.
  • Is not related with the lubricant fluid because they are not combined.

Question 18

Question
Normally the fuel system in an aircraft is made to…
Answer
  • Be able to supply at least 75% of the fuel flow required under each intended operation condition or maneouvre.
  • Have only one fuel system able to provides fuel to all the engines.
  • Be able to supply at least 100% of the fuel flow required under each intended operation condition or maneouvre.
  • Be fitted with a main pump that boost the fuel through the system.

Question 19

Question
A disadvantage of the rigid tanks is…
Answer
  • That it has t be protected with isolating material.
  • That the material can be damaged by the use.
  • That the volume of the tank normally is not enough.
  • That it needs extra structures that means more weight.

Question 20

Question
How works the flame arrestors (parallamas).How works the flame arrestors (parallamas).
Answer
  • Reduce the velocity of propagation ending the combustion.
  • Present a metallic barrier that cool the air and reduce the ignition.
  • The vapors run away to the atmosphere and the combustion can´t be produced.
  • It can´t slow the propagation.

Question 21

Question
What is the false answer. The fuel tank is pressurized to:
Answer
  • Prevent evaporation at high altitude.
  • Prevent vapor locks.
  • Prevent negative differential pressure.
  • Reduce the propagation of the combustion.

Question 22

Question
What of the next answers is not an operating mode of fuel system
Answer
  • Pressurization.
  • Refuel / Defuel.
  • Fuel Jettison.
  • Fuel distribution.

Question 23

Question
What type of sensor use the difference in the dielectric properties of air and fuel.
Answer
  • Ultrasonic sensors
  • Capacitance sensors
  • Optical level sensors
  • Float level sensors

Question 24

Question
Related with the pumps that a fuel system could have there are:
Answer
  • Fuel transfer pumps.
  • Fuel booster pumps and fuel transfer pumps.
  • Fuel booster pumps, fuel transfer pumps and engine feed pumps.
  • Fuel multioperation pumps.

Question 25

Question
Q1. It is not a characteristic of the heat pipe
Answer
  • High reliability
  • Mobile parts
  • Transfers heat
  • Uses different liquids

Question 26

Question
Q2. What statement is true about air distribution
Answer
  • Does not look for a comfortable environment
  • Pipes ensure an heterogeneous distribution
  • In fighters the air flow is higher and the temperature lower
  • None of the above

Question 27

Question
Q3. About the cabin noise
Answer
  • The priority is to minimize the layers in the cabin
  • A reduction of noise is the main objective
  • The noise is not a distraction for the pilot
  • We cannot Cancel the noise through headphones

Question 28

Question
Q4. About cabin pressure
Answer
  • The maximum safe altitude for pilots without O2 is 25000ft
  • Regulation for passengers is 8000ft
  • It uses the high altitude pressurization system, located in the nose
  • None of the above

Question 29

Question
Q5. The pneumatic pressure control system has
Answer
  • Discharge valve
  • Cabin pressure controller
  • Altittude capsule
  • All of them

Question 30

Question
Q6. Levels of decompressiom
Answer
  • Explosive
  • Slow
  • Rare
  • Spectacular

Question 31

Question
Q7. Solid oxygen candles
Answer
  • Once started they cannot be stopped
  • They continue the combustion even underwater
  • They work by demand
  • All of them

Question 32

Question
Q8. The physical states of the oxygen for transportation are (select the INCORRECT):
Answer
  • Liquid
  • Gaseous
  • Solid
  • Chemical
  • NO hay incorrecta (la pregunta esta mal)
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