13384861
Descripción
Test por Ismael Vázquez, actualizado hace más de 1 año
|
Creado por Ismael Vázquez
hace más de 6 años
|
|
Pregunta 1
Pregunta
Q1. Which of the following are lubricating oil types?
Respuesta
-
Straight mineral oil
-
Ashless dispersant oil
-
Synthetic oil
-
All of them are correct
Pregunta 2
Pregunta
Q2. Which of the following statements are correct?
Respuesta
-
Wet sump lubrication system stores the oil in a reservoir inside the engine.
-
Dry sump lubrication system pumps the oil from the engine ́s crankcase to an external tank that stores oil.
-
A and B are true
-
A and B are false
Pregunta 3
Pregunta
Q3. Which of the following statements is incorrect?
Respuesta
-
Oil absorbs heat from the engine components and dissipates to the atmosphere through a heat exchanger
-
Sealing is one of the functions of engine oil
-
Engine oil increases friction created between the moving parts of the engine
-
All of them
Pregunta 4
Pregunta
Q4. What does ‘W’ means referring to oils?
Respuesta
-
Wide ratio of uses
-
Wide ratio of temperatures
-
It is specially designed for airplanes
-
It is specially prepared for winter
Pregunta 5
Pregunta
Q5. One of the following statements is vital for aviation (regarding to lubrication system)
Respuesta
-
It must work properly in every altitude or atmospheric conditions
-
It doesn’t need an element to cool the lubricant
-
Oil leakages are not important
-
None of them are true
Pregunta 6
Pregunta
Q6. Which of these is not part of the lubrication system?
Respuesta
-
Pressure pump
-
Crankcase
-
Filters
-
Oil tank
Pregunta 7
Pregunta
Q7. Excessive heat in engine operation...
Respuesta
-
Affects the behavior of the combustion with the possibility of detonations
-
Shortens the life of the engine
-
Impairs lubrication
-
All of them are true
Pregunta 8
Pregunta
Q8. Which of these is a disadvantage of Cowl Flaps?
Respuesta
-
They control the airflow
-
They increase the performances of the engine
-
They increase drag
-
None of them are disadvantages
Pregunta 9
Pregunta
Q1. A fixed pitch propellers...
Respuesta
-
A. For a fixed blade angle, variations in TAS (or RPM) implies variation of the angle of attack
-
B. For a fixed blade angle, variations in TAS (or RPM) do not implies variation of the angle of attack
-
C. The propeller can be optimized for several flight conditions
-
D. AandCaretrue
Pregunta 10
Pregunta
Q2. In variable pitch propeller aircrafts...
Respuesta
-
Pilot uses fine pitch during cruise
-
Pilot uses coarse pitch in take off
-
Pilot uses fine pitch during takeoff because more power is needed
-
All are false
Pregunta 11
Pregunta
Q3. In constant speed propellers...
Respuesta
-
A. The pitch setting must be modified by the pilot during the flight to maintain a determined constant rotational speed
-
B. The pitch setting varies automatically during the flight to maintain a determined constant rotational speed
-
C. The pilot actuates directly in the governor to control the blade angle variation
-
D. A and C are true
Pregunta 12
Pregunta
Q4. The Constant Speed Unit (CSU) is used in
Respuesta
-
Piston engines
-
Turboprop
-
Both of them
-
None of them
Pregunta 13
Pregunta
Q5. With a pre-selected RPM, pilot decides to descent
Respuesta
-
It is an overspeed condition, so flyweights tilt outwards and raise pilot valve which introduces oil to increase propeller pitch and lower engine RPM
-
It is an underspeed condition, so flyweights tilt outwards and raise pilot valve which introduces oil to increase propeller pitch and lower engine RPM
-
It is an underspeed condition, so flyweights tilt inwards and pilot valve is forced down which decreases oil flow to decrease propeller pitch and increase engine RPM
-
None of them
Pregunta 14
Pregunta
Q6. With a pre-selected RPM, pilot decides to ascent
Respuesta
-
It is an overspeed condition, so flyweights tilt outwards and raise pilot valve which introduces oil to increase propeller pitch and lower engine RPM
-
It is an underspeed condition, so flyweights tilt outwards and raise pilot valve which introduces oil to increase propeller pitch and lower engine RPM
-
It is an underspeed condition, so flyweights tilt inwards and pilot valve is forced down which decreases oil flow to decrease propeller pitch and increase engine RPM
-
None of them
Pregunta 15
Pregunta
Q7. Regarding to icing in blades...
Respuesta
-
A. A good propeller de-icing could be resistance heating elements
-
B. It causes aerodynamic shape lost
-
C. Due to the propeller's high spin velocity, icing in blades is not common
-
D. A and B are true
Pregunta 16
Pregunta
Q8. Regarding to propellers
Respuesta
-
A. Propellers are better propellants than jet engines
-
B. Propellers are worse propellants than jet engines
-
C. Propellers are not good a high cruising speed due to excessive velocities in blade's tips
-
D. A and C are true
Pregunta 17
Pregunta
Q1. Which was the first jet-powered aircraft?
Respuesta
-
Spitfire
-
Junkers Ju 87
-
Bell P-59
-
Heinkel He-178
Pregunta 18
Pregunta
Q2. Why was the aircraft Gloster Meteor so popular?
Respuesta
-
It was the first jet-powered aircraft.
-
It was the first aircraft to break the sound barrier.
-
It was the first aircraft with sufficient speed to attack the German V1 flying bomb.
-
It was the first aircraft that could perform sustained inverted flight.
Pregunta 19
Pregunta
Q3. The engine Jumbo 004B was a milestone in the turbojet engine because...
Respuesta
-
It had the first axial compressor in a turbojet engine.
-
It had the biggest change of pressure in one stage up until then.
-
It was the most produced engine in the WWII.
-
All the answers are false.
Pregunta 20
Pregunta
Q4. Mark the right answer:
Respuesta
-
A turboprop produces more impulse than a turbojet.
-
A low-BPR turbofan has a bigger SFC than a high-BPR turbofan in low speeds.
-
A turboprop has a bigger SFC than a turbojet in low speeds.
-
A turboprop has the least SFC at any speed.
Pregunta 21
Pregunta
Q5. Which statement is true?
Respuesta
-
Axial compressor is a compressor in which the gas or working fluid principally flows parallel to the axis of rotation
-
Centrifugal compressor is a compressor in which the gas or working fluid principally flows with a radial component through the compressor.
-
A and B are correct
-
None of the above
Pregunta 22
Pregunta
Q6. In jet engines with greater impulse (I):
Respuesta
-
Large size.
-
Smaller size.
-
The division between thrust (E) and airflow (G) is lower
-
None of the above
Pregunta 23
Pregunta
Q7. The specific fuel consumption (SFC) is:
Respuesta
-
E (thrust) / G (airflow)
-
c (consumption) / E (thrust)
-
G (airflow) / E (thrust)
-
G (airflow) / c (consumption)
Pregunta 24
Pregunta
Q8. In turbofan the bypass ratio is:
Respuesta
-
Secondary flow / Primary flow ; and primary flows through the combustion chamber.
-
Secondary flow / Primary flow ; and secondary flows through the combustion chamber.
-
Primary flow / Secondary flow ; and primary flows through the combustion chamber.
-
Primary flow / Secondary flow ; and secondary flows through the combustion chamber.
¿Quieres crear tus propios Tests gratis con GoConqr? Más información.