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Flight Performance & Planning

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Passed Exams Quiz on Flight Performance & Planning, created by Roman Eidia on 26/04/2018.
Roman Eidia
Quiz by Roman Eidia, updated more than 1 year ago
Roman Eidia
Created by Roman Eidia about 7 years ago
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Question 1

Question
Barometric error occurs when:
Answer
  • Sea level pressure (Mean Sea Level) is different from the 1013.25hPa.
  • Pressure gradient is different from QNH .
  • Pressure gradient is different from the ISA.
  • The altimeter was heated (eg. sunshine) to high temperature.

Question 2

Question
Temperature error occurs when:
Answer
  • Ambient temperature differs from ISA
  • The altimeter is calibrated by QNH.
  • The altimeter is calibrated by QFE.
  • Pressure gradient is different from QNH .

Question 3

Question
Component weight 55 kg, arm = 2.3 m. The moment [kgm] ?
Answer
  • 126.5.
  • 23.9.
  • 6957.
  • 0.0418.

Question 4

Question
If the center of gravity is near the extreme forward position, this shall:
Answer
  • Decrease in force on the stick.
  • Increase in force on the stick.
  • The plane is unstable sedately
  • Will occur less force on the stick.

Question 5

Question
The international standard atmosphere (International Standard Atmosphere) defines the following conditions at the sea level: temperature / pressure / density / temperature gradient:
Answer
  • 15°C / 1013,25 hPa / 1.225 kg/m3 / -6.5°C per 1000 m.
  • 15°C / 1013,25 mb / 1.225 kg/m3 / 1.98°C per 1000 m.
  • 0°C / 1.013 Bar / 1225 g/m3 / 1.98°C per 1000 ft.
  • 15°C / 29.92 in.Hg / 1013 kg/m3 / 1.98°C per 1000 ft.

Question 6

Question
The center of gravity can be defined as:
Answer
  • The percent mean aerodynamic chord (% MAC) or distance (mm, cm, inch) CG the measuring point "DATUM".
  • Percentage of dynamic chord severity (% MAC).
  • As a percentage of the fuselage aerodynamic chord (% MAC).
  • Percentage of dynamic chord counted in the average range (% MAC).

Question 7

Question
The center of gravity can be defined as:
Answer
  • The point where the concentrated mass of the aircraft is.
  • Point to which they are applied all the forces acting on the aircraft.
  • The point to which the applied forces are supporting and gravity - acting on the aircraft.
  • Point to which they are applied drag force acting on the aircraft.

Question 8

Question
Weighing of the aircraft (SP): readout on the scales under the front gear - 155 kg, readout - the sum on the main 320 kg. Distance SP front - front gear 0.8 m, front SP - main 2.4 m. What is the distance between the front SP and the center of gravity?
Answer
  • 1.88 m.
  • 2.92 m.
  • 3.2 m.
  • 1.68 m.

Question 9

Question
Weighing of the aircraft: the readout on the scales under the front gear 205 kg, the readout - the sum of the main 420 kg. Front gear arm - 0.9m front, main 2.6 m. What is the distance between the front CG - the center of gravity?
Answer
  • 2.04 m.
  • 3.12 m.
  • 1.88 m.
  • 2.09 m.

Question 10

Question
Moment = ? Formula fo the moment ?
Answer
  • Force (weight) multiplied by the arm of force.
  • Force (weight) divided by the arm of force.
  • Strength (w) x distance from the center of gravity datum.
  • Arm of force divided by the force (weight).

Question 11

Question
The pressure altitude of the airport on a particular day can be determined:
Answer
  • By reading the amount indicated by the altimeter set to 1013.2 hPa.
  • Read the height of the altimeter driven 1013.2hPa, and then we correct it, because it reads the ambient temperature.
  • Better observations of the environment by the pilot because of the wider field of view close to the ground.
  • Achieving greater thrust to the ground - this effect disappears at a height approximately equal to the span of the aircraft.

Question 12

Question
"The influence of the earth" allows:
Answer
  • The separation of aircraft at the lower speed, but the phenomenon disappears at an altitude of approximately equal span and performance decline.
  • Achieve greater engine power to the ground (for engines without compressor).
  • Better observations of the environment by the pilot because of the wider field of view close to the ground.
  • Achieving greater thrust to the ground - this effect disappears at a height approximately equal to the span of the aircraft.

Question 13

Question
"The influence of the earth " is a phenomenon consisting in:
Answer
  • Reduction of induced drag and angle of attack required for level flight (at a given speed), which is due to the proximity of the ground.
  • Withstanding the significant shortening of the landing phase.
  • Achieving greater power by internal combustion engines near the ground (for naturally aspirated engines).
  • Achieving greater thrust to the ground - this effect disappears at a height approximately equal to the span of the aircraft.

Question 14

Question
For the hydroplaning phenomenon (dynamic) to take place during the run / roll of the airplane the following factors are necessary:
Answer
  • The thickness of the layer of water on the belt must be greater than the critical (about 3 mm) and the aircraft must obtain the appropriate pull rates.
  • Aircraft tire treads must heat up to high temperatures during intense braking on wet runway.
  • One of the wheels plane must be locked (e.g. failure of anti-skid) on the wet runway.
  • "Hydroplaning '"is a term for only a seaplane landing on a smooth surface.

Question 15

Question
What is VX?
Answer
  • This is the speed at which the best climb gradient is achieved. Best Angle of Climb.
  • This is the speed at which achieves the best rate of climb Rate of Climb Best.
  • To speed the decision at which the conditions are safe and continue to break off.
  • Is the speed at which the best value is achieved for the lift force.

Question 16

Question
What is VY?
Answer
  • Best Rate of Climb.
  • Best Angle of Climb.
  • To speed the decision at which the conditions are safe and continue to break off.
  • Is the speed at which the best value is achieved for the lift force.

Question 17

Question
Does high humidity contribute to decrease in the aircraft performance?
Answer
  • Yes.
  • False - it cools the engine and thus improves performance.
  • Humidity has no effect on performance.
  • All the answers are wrong.

Question 18

Question
For each combination of the altitude of the flight and aircraft weight, in the scale of minimum to maximum speed there is:
Answer
  • An approach angle at which the lift force is equal to the weight and it is possible to level flight.
  • Such a tilt that ensures that the lift force is equal to the weight and it is possible to level flight.
  • Such an approach angle at which the resistance force is equal to the string generated by the engines and it is possible to level flight.
  • Such an approach angle at which the lift force equals the weight times the cosine of the angle of attack, and it is possible to level flight.

Question 19

Question
High density altitude (in relation to low density altitude) means:
Answer
  • Low air density and low aircraft performance.
  • High air density and low aircraft performance.
  • High air density and high aircraft performance.
  • Low air density and high aircraft performance.

Question 20

Question
How will high ambient temperature influence the aircraft take-off run (at a given airport) in comparison with the case when the ambient temperature is low?
Answer
  • Increasing the length of the run.
  • Reducing the length of the run.
  • The ambient temperature does not affect the length of the run.
  • All the answers are wrong.

Question 21

Question
How will the plane take-off from an airport located in the mountains influence the length of the take-off run in comparison with the take-off in the same temperature , aircraft weigh and wind conditions and with the setting of the flaps from the airport at 0 m above the sea level?
Answer
  • Start from the highly situated airport - greater long run.
  • Reducing the length of run.
  • Elevation of the airport does not affect the length of the run.
  • All the answers are wrong.

Question 22

Question
How will the use of higher flap setting (than usual) influence the length of the take-off run?
Answer
  • Reducing the length of the take-off run.
  • Increasing the length of the take-off run.
  • It has no effect on the length of the take-off run.
  • All the answers are wrong.

Question 23

Question
How will increase of the weigh of the aircraft influence the length of the take-off run?
Answer
  • Increasing the length of the take-off run.
  • Reducing the length of run.
  • It has no effect on the length of the run.
  • All the answers are wrong.

Question 24

Question
What shall be the effects of changes in ambient temperature on the performance of the aircraft if all other parameters remain unchanged?
Answer
  • The temperature drop will increase the gradient of the climb.
  • The increase in temperature would reduce the distance required for takeoff.
  • The temperature drop will increase the distance required for takeoff.
  • The increase in temperature would reduce the distance required for takeoff and landing.

Question 25

Question
What shall be the effects of changes in ambient temperature on the performance of the aircraft if all other parameters remain unchanged?
Answer
  • The temperature drop will reduce the distance required for takeoff.
  • The increase in temperature would reduce the distance required for takeoff.
  • The temperature drop will increase the distance required for takeoff.
  • Changes in ambient temperature do not change the distance required for takeoff.

Question 26

Question
If the center of gravity is near the extreme front position:
Answer
  • This will reduce the rate of climb.
  • Because of the need to lower the amount of rudder - Supporting decreases the force required to slice - it reduces the stall speed.
  • A reduction of fuel consumption during the flight due to less resistance.
  • A reduction of induced drag.

Question 27

Question
If the center of gravity is maximum forward position the aircraft among others shall:
Answer
  • Due to the need for a greater amount of rudder - increases the required lift force on the panel - increases induced drag, which negatively affects performance.
  • Because of the need to lower the amount of rudder - decreases the lift on the rudder, which requires carriers to increase the panel which reduces induced drag and has a negative effect on performance.
  • Because of the need to lower the amount of rudder - Supporting decreases the force required to slice - it reduces the stall speed.
  • Due to the need for a greater amount of rudder - Supporting decreases the force required to slice - the stall speed increases.

Question 28

Question
The direction of the airstrip 040 °, wind 270/18 kt (ATIS). What are the components of the wind?
Answer
  • The tail: 12 kt, cross - left 14 kt.
  • 12 kt, cross - the right of 14 kt.
  • Head: 16 kt, cross - the right of 16 kt.
  • The tail: 8 kt, cross - left 21 kt.

Question 29

Question
The direction of the airstrip 150 °, wind 220/22 kt (ATIS). What are the components of the wind?
Answer
  • Head: 8 kt, cross - the right of 21 kt.
  • Head: 14 kt, cross - the right of 17 kt.
  • Head: 4 kt, cross - right 22 kt.
  • The tail: 8 kt, cross - left 21 kt.

Question 30

Question
The direction of the airstrip 200 °, wind 080/13 kt (ATIS). What are the components of the wind?
Answer
  • The tail: 7 kt, cross - left 11 kt.
  • Head: 7 kt, cross- right 11 kt.
  • Head: 4 kt, cross - right 12 kt.
  • The tail: 8 kt, cross - left 12 kt.

Question 31

Question
The direction of the airstrip 220 °, wind 160/26 kt (ATIS). What are the components of the wind?
Answer
  • Head: 13 kt, cross - left 23 kt.
  • Head: 14 kt, cross - the right of 17 kt.
  • Head: 9 kt, cross - the right of 23 kt.
  • The tail: 13 kt, cross - left 22 kt.

Question 32

Question
The direction of the airstrip 330 °, wind 250/15 kt (ATIS). What are the components of the wind?
Answer
  • Head: 3 kt, cross - left 15 kt.
  • Head: 8 kt, cross - left 13 kt.
  • The tail: 3 kt, cross - left 15 kt.
  • The tail: 3 kt, cross - the right of 15 kt.

Question 33

Question
Which of the given combinations of weather conditions prevailing at the airport at the start shall contribute to the largest drop of the aircraft performance:
Answer
  • High temperature, high density altitude, high humidity.
  • Low temperature, high density altitude, low humidity.
  • High temperature, low density altitude, low humidity.
  • Low temperature, low density altitude, low humidity.

Question 34

Question
Which of the given combinations of weather conditions prevailing at the airport at the start shall contribute to the largest drop of the aircraft performance:
Answer
  • High density altitude and high ambient temperature.
  • Strong wind front.
  • Poor rainfall and low, but positive temperature.
  • Low ambient temperature.

Question 35

Question
Mach number is the ratio of the:
Answer
  • TAS-speed and local speed of sound.
  • IAS-speed and local speed of sound.
  • IAS speed and the speed of sound at a given height referred to the ISA.
  • TAS speed and the speed of sound at sea level.

Question 36

Question
The Maximum structural landing mass (Maximum Structural Landing Mass) is:
Answer
  • Maximum weight for landing under normal circumstances.
  • Maximum landing mass-impassable - even in emergency situations because of the certainty of destruction of the structure.
  • Maximum weight for landing in emergency situations (1.3 times the normal weight for landing).
  • Maximum weight for takeoff and landing in an emergency (1.3 times the normal weight for landing).

Question 37

Question
Low density altitude means that:
Answer
  • The air density is high - the aircraft's performance will be better than in the case of high density altitude.
  • The air density is high - the aircraft's performance will be much worse than in the case of high density altitude.
  • The air density is low, which causes a drop in airplane performance compared to the case of high density altitude.
  • The air density is high, which causes a drop in airplane performance compared to the case of high density altitude.

Question 38

Question
The most economical angle in terms of fuel use/range is the one which produces:
Answer
  • The best ratio of carrier power to resist - that the most economical approach angle is fixed for each combination of altitude and aircraft weight.
  • The best ratio of carrier power to resist - that the most economical approach angle increases with the mass of the airplane and the flight altitude.
  • The best value for the resistance forces.
  • The best ratio of lift to the string.

Question 39

Question
With reference to the influence of "ground effect" it is true that:
Answer
  • This phenomenon disappears at an altitude of approximately equal span of aircraft / glider and performance decline.
  • Significantly reduces the phenomenon of withstanding the landing phase.
  • Improves gradient of climb at an altitude of 150 m.
  • Significantly increases the stall speed.

Question 40

Question
With reference to the influence of icing on the aircraft's performance it is true that:
Answer
  • Even minor pollution such as "sandpaper" surface of the carrier may have a dangerous effect on performance.
  • Ice on the upper surface of the wing / rotor blades is less dangerous than the bottom.
  • The main factor influencing the performance of aircraft is the mass deposited on them ice.
  • For aircraft icing appeared to affect the performance he must move in the clouds.

Question 41

Question
When performing the right steep turn with proper bank of 60 degrees:
Answer
  • Stall pull rates will rise by about 40%.
  • Stall pull rates will fall by about 20%.
  • Stall pull rates will increase by around 60%.
  • Stall speed does not change in the corner.

Question 42

Question
While turning:
Answer
  • There is centripetal force, and overload.
  • The force of gravity is exactly balanced by the lift.
  • Deceleration occurs.
  • Pull rates decreases drag.

Question 43

Question
The gravity load occurring in the turn (load factor) is:
Answer
  • The total lift force divided by weight.
  • Weight divided by the lift.
  • Lift divided by weight.
  • Weight divided by a string.

Question 44

Question
At the start from an inclined runway - uphill - acceleration during the take-off run shall be .... and the take-off run shall ....:
Answer
  • Smaller, increases.
  • Smaller, decreases.
  • There is no difference, does not affect the length of the run.
  • Larger, will decrease.

Question 45

Question
At the start from the runway of a favorable slope - from the top the aircraft take-off run shall:
Answer
  • Decrease.
  • Increase.
  • The slope of the runway has no effect on the length of the take-of run.
  • All the answers are wrong.

Question 46

Question
Service ceiling is the pressure height of at which:
Answer
  • Rate of climb of the aircraft reaches a certain, regulated by law value.
  • Rate of climb of the aircraft reaches zero.
  • Stall speed and critical speed of Mach aircraft are equal.
  • Speed of the aircraft does not allow any horizontal maneuvers.

Question 47

Question
The longest take-of run shall be from an airstrip of the following surface:
Answer
  • High grass.
  • Low grass.
  • Concrete.
  • Asphalt.

Question 48

Question
The plane has to be balanced in order to maintain stability:
Answer
  • Longitudinal.
  • Lateral.
  • Static lateral.
  • Lateral and longitudinal dynamic.

Question 49

Question
The plane has to be balanced due to:
Answer
  • Longitudinal stability.
  • Lateral stability.
  • Need to maintain even load landing gear leg.
  • Protection against exceeding the critical angle of attack in all flight conditions.

Question 50

Question
The effects of overloading are:
Answer
  • Increase the speed of takeoff speed and secure, longer distance to takeoff and landing, reducing the rate of climb, the possibility of damage to the airplane structure.
  • Lowering the speed and the speed safe takeoff, there is no change in performance engines.
  • Lowering the speed takeoff and safe speed and the possibility of damage to the airplane structure.
  • The increase in take-off speed and increased range and endurance.

Question 51

Question
Extending flaps reduces:
Answer
  • Lift to drag ratio.
  • Induced drag.
  • Restricts pilot view due to increased angle of attack.
  • Lift required for horizontal flight.

Question 52

Question
In a given aircraft we have two possible landing flaps positions: 0 and 10. In order to obtain a shorter ground roll the following should be used:
Answer
  • 10.
  • 0.
  • The position of the flaps has no influence on the length of the ground roll.
  • All the answers given are false.

Question 53

Question
In a standard configuration center of gravity (counting from the front) is:
Answer
  • Before the aerodynamic center.
  • Exactly in the aerodynamic center.
  • Always exactly under the aerodynamic center.
  • Behind the aerodynamic center.

Question 54

Question
Weighing of the aircraft: front wheel 1000kg, left and right wheels 5000 kg each. The distance between the front wheel and the main one is 10 m. How many meters from the wheels of the main chassis is the centre of gravity?
Answer
  • 0.91 m.
  • 0.75 m.
  • 9.1 m.
  • 0.81 m.

Question 55

Question
The phenomenon consisting in the horizontal stabilizer icing:
Answer
  • May lead to the stall of the horizontal stabilizer and the entry aircraft in an uncontrolled dive.
  • Once there, it requires the same actions on the part of the remote control - pass the control to another pilot, adding power.
  • Occurs only on large passenger jets.
  • It is the most dangerous high-speed flight, when the tilt control effectiveness is greatest.
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