Which statement is true relative to changing angle of attack?
a. A decrease in angle of attack will increase pressure below the wing and decrease  drag  
b. An increase in angle of attack will decrease pressure below the wing and decrease  drag  
c. An increase in angle of attack will increase drag  
d. An increase in angle of attack will decrease the lift coefficient

1 Answer

Answer :

c. An increase in angle of attack will increase drag

Related questions

Description : By changing the angle of attack of a wing, the pilot can control the aeroplane’s: a. Lift and airspeed, but not drag b. Lift, gross weight and drag c. Lift, airspeed and drag d. Lift and drag, but not airspeed

Last Answer : c. Lift, airspeed and drag

Description : To maintain altitude, what must be done as Indicated Airspeeed (IAS) is reduced? a. Decrease angle of attack to reduce the drag b. Increase angle of attack to maintain the correct lift force c. Deploy the speed brakes to increase drag d. Reduce thrust

Last Answer : b. Increase angle of attack to maintain the correct lift force

Description : If the angle of attack is increased beyond the critical angle of attack, the wing will no longer produce sufficient lift to support the weight of the aircraft: a. Unless the airspeed is greater ... below the natural horizon d. In which case, the control column should be pulled-back immediately

Last Answer : b. Regardless of airspeed or pitch attitude

Description : What flight condition should be expected when an aircraft leaves ground effect? a. A decrease in parasite drag permitting a lower angle of attack b. An increase induced drag and a requirement ... increase in dynamic stability d. A decrease in induced drag requiring a smaller angle of attack

Last Answer : b. An increase induced drag and a requirement for a higher angle of attack

Description : At a constant mass and altitude, a lower airspeed requires: a. More thrust and a lower coefficient of lift b. Less thrust and a lower coefficient of lift c. More thrust and a lower coefficient of drag d. A higher coefficient of lift

Last Answer : d. A higher coefficient of lift

Description : What phenomenon causes induced drag? a. Wing tip vortices b. Wing tanks c. The increased pressure at the leading edge

Last Answer : a. Wing tip vortices

Description : Which statement is true regarding the opposing forces acting on an aeroplane in steady-state level flight? a. Thrust is greater than drag and weight and lift are equal b. These forces are equal ... greater than weight d. Thrust is slightly greater than lift, but the drag and weight are equal

Last Answer : b. These forces are equal

Description : What true airspeed and angle of attack should be used to generate the same amount of lift as altitude is increased? a. A higher true airspeed for any given angle of attack b. The same true ... c. A lower true airspeed and higher angle of attack d. A constant angle of attack and true airspeed

Last Answer : a. A higher true airspeed for any given angle of attack

Description : Which statement best describes the operating principle of a constant-speed propeller? a. As throttle setting is changed by the pilot, the prop governor causes pitch angle of the propeller blades to ... the pilot, the RPM of the engines remains constant as the pitch angle of the propeller changes

Last Answer : b. The propeller control regulates the engine RPM and in turn the propeller RPM

Description : What effect does aspect ratio have on induced drag? a. Increased aspect ratio increases induced drag b. Increased aspect ratio reduces induced drag c. Changing aspect ratio has no effect on induced drag d. Induced drag will equal 1:3 x aspect ratio/chord ratio

Last Answer : b. Increased aspect ratio reduces induced drag

Description : If flaps are lowered during the take-off run: a. The lift would not change until the aircraft is airborne b. The lift would increase when the flaps are lowered c. The lift would decrease d. The acceleration would increase

Last Answer : b. The lift would increase when the flaps are lowered

Description : To recover from a spin, the elevators should be: a. Moved up to increase the angle of attack b. Moved down to reduce the angle of attack c. Set to neutral d. Allowed to float

Last Answer : b. Moved down to reduce the angle of attack

Description : When would the negative differential limits be reached/exceeded? a. Rapid descent when AC descends below cabin altitude b. During ground pressure testing c. Rapid ascent when aircraft climbs d. When changing to manual operation

Last Answer : a. Rapid descent when AC descends below cabin altitude

Description : If airbrakes are extended during a glide, and speed maintained, the rate of descent will: a. Increase and glide angle will be steeper b. Increase but glide angle will remain the same c. Decrease d. Remain the same

Last Answer : a. Increase and glide angle will be steeper

Description : Two aircrafts, one with a sharp wing profile (S) and the other with a thick profile (T), are flying through the same cloud with the same true airspeed. The cloud consists of small ... aircrafts accumulate ice due to the small size of droplets d. Aircraft S experiences more icing than T

Last Answer : d. Aircraft S experiences more icing than T

Description : You are flying at a constant FL 290 and a constant mach number. The total temperature increases by 5°. The CAS will: a. Remain approximately constant b. Increase by 10 kts c. Decrease by 10 kts d. Will increase or decrease depending on whether you are above or below ISA

Last Answer : a. Remain approximately constant

Description : What is the recommended technique to counter the loss of airspeed and resultant lift from wind shear? a. Maintain, or increase, pitch attitude and accept the lower-than-normal airspeed ... shaker, and apply maximum power d. Accelerate the aircraft to prevent a stall by sacrificing altitude

Last Answer : c. Avoid overstressing aircraft, pitch to stick shaker, and apply maximum power

Description : Which stall has the greatest angle of attack? a. Low speed stall b. High speed stall (shock stall) c. Deep stall d. Accelerated stall

Last Answer : c. Deep stall

Description : The angle of attack of a fixed pitch propeller: a. Depends on forward speed only b. Depends on forward speed and engine rotational speed c. Depends on engine rotational speed only d. Is constant for a fixed pitch propeller

Last Answer : b. Depends on forward speed and engine rotational speed

Description : What factors affect descent angle in a glide? a. Configuration and altitude b. Configuration and angle of attack c. Mass and altitude d. Mass and configuration

Last Answer : b. Configuration and angle of attack

Description : An inversion is: a. A decrease of pressure with height b. A decrease of temperature with height c. An increase of temperature with height d. An increase of pressure with height

Last Answer : c. An increase of temperature with height

Description : What is the purpose of inboard ailerons? a. To reduce wing bending at high speed b. To reduce wing twisting at low speed c. To reduce wing bending at low speed d. To reduce wing twist at high speed

Last Answer : d. To reduce wing twist at high speed

Description : At a constant mass and altitude, a lower airspeed requires: a. More thrust and a lower coefficient of lift b. Less thrust and a lower coefficient of lift c. More thrust and a lower coefficient of drag d. A higher coefficient of lift

Last Answer : d. A higher coefficient of lift

Description : Whenever a plate is held immersed at some angle with the direction of flow of the liquid, it is subjected to some pressure. The component of this pressure, in the direction of flow of the liquid, is known as (A) Lift (B) Drag (C) Stagnation pressure (D) Bulk modulus

Last Answer : Answer: Option B

Description : The maximum induced drag occurs at a speed of: a. VMD b. VMP c. VSO d. VATO

Last Answer : c. VSO

Description : The best EAS/Drag ratio is approximately: a. 1.3 VMD b. 1.32 VMD c. 1.6 VMD d. 1.8 VMD

Last Answer : b. 1.32 VMD

Description : When does THRUST = DRAG? a. Climbing at a constant IAS b. Descending at a constant IAS c. Flying level at a constant IAS d. All of the above

Last Answer : c. Flying level at a constant IAS

Description : CAS is IAS corrected for: a. Position and instrument error b. Instrument, pressure, and density error c. Relative density only d. Compressibility

Last Answer : a. Position and instrument error

Description : How can the pilot increase the rate of turn and decrease the radius at the same time? a. Shallow the bank and increase airspeed b. Steeper bank and increase airspeed c. Steeper bank and decrease airspeed

Last Answer : c. Steeper bank and decrease airspeed

Description : Shortly after take-off, the altitude of the aeroplane suffers an abrupt pitch-up and IAS rapidly decreases followed quickly by a decrease in altitude. Engine indications are normal. You should suspect what ... to gain airspeed d. Local clear air turbulence; reduce speed to VRA and ride it out

Last Answer : b. Loss of head wind or an increase in tail wind; apply full power

Description : What is normally the most effective measure to reduce or avoid CAT effects? a. Change of flight level b. Change of course c. Increase of speed d. Decrease of speed

Last Answer : a. Change of flight level

Description : A pilot suffering from decompression sickness should: a. Descend to a lower level where the symptoms will disappear and continue the flight at this or a lower level b. Decrease the cabin pressure ... the pain in the affected site d. Land as soon as possible and seek medical assistance

Last Answer : d. Land as soon as possible and seek medical assistance

Description : Disorientation is more likely when the pilot is: 1. flying in VMC 2. frequently changing between inside and outside references 3. flying from IMC to VMC 4. approaching over still water at night a. 1, 2 & ... 1, 2 & 4 only are correct c. 1, 2, 3 & 4 are correct d. 1 only is correct

Last Answer : b. 1, 2 & 4 only are correct

Description : The minimum content of a readback of the message from ATC “X-CD CHANGE FREQUENCY TO STEPHENVILLE TOWER 118.7” is: a. 118.7 b. CHANGING FREQUENCY X-CD c. TO STEPHENVILLE X-CD d. 118.7 X-CD

Last Answer : d. 118.7 X-CD

Description : The VOR indications on an RMI whose deviation is not zero: a. Are magnetic b. Are compass c. Are relative d. Must have deviation applied before being used

Last Answer : a. Are magnetic

Description : How will an oncoming aircraft on a line of constant bearing appear visually? a. There will be no relative movement and it will appear to be very small until seconds before the collision ... relative movement and it will appear to be very small until seconds before the aircraft passes well clear

Last Answer : a. There will be no relative movement and it will appear to be very small until seconds before the collision

Description : Generally, as altitude increases: a. Temperature decreases and density increases b. Temperature, pressure and density decreases c. Temperature and pressure increase and density decreases d. Temperature decreases and pressure and density increase

Last Answer : b. Temperature, pressure and density decreases

Description : The effects of carbon monoxide: a. Increases with altitude b. Decreases with altitude c. Increases with increase of density d. Decreases with pressure loss

Last Answer : a. Increases with altitude

Description : Pick up the correct statement from the following: (A) Coefficient of compressibility is the decrease in void ratio per unit increase of pressure (B) The percent settlement at any time is called degree of consolidation (C) Time factor is a dimensionless quantity (D) All the above

Last Answer : Answer: Option D

Description : If the ailerons are deflected to 10°, compared to 5°, this will cause: a. An increased angle of bank b. An increased rate of roll c. No change to either bank angle or roll rate d. A reduction in the adverse yawing moment

Last Answer : b. An increased rate of roll

Description : To give the best obstacle clearance on take-off, take-off should be made with: a. Flaps partially extended and at best rate of climb speed (Vy) b. Flaps partially extended and at best angle of climb ... at best rate of climb speed (Vy) d. Flaps retracted and at best angle of climb speed (Vx)

Last Answer : d. Flaps retracted and at best angle of climb speed (Vx)

Description : Which of the following increases the stall angle? a. Slats b. Flaps c. Spoilers d. Ailerons

Last Answer : a. Slats

Description : What is the effect of deploying leading edge flaps? a. Increased minimum glide angle b. Decreased minimum glide angle c. Increased glide range d. Decreased sink rate

Last Answer : d. Decreased sink rate

Description : Lowering the flaps during a landing approach: a. Increases the angle of descent without increasing the airspeed b. Decreases the angle of descent without increasing power c. Eliminates floating d. Permits approaches at a higher indicated airspeed

Last Answer : a. Increases the angle of descent without increasing the airspeed

Description : The method of alighting the aeroplane on water during a ditching is to: a. Carry out a normal approach with flaps and gear selected as normal but to calculate all speeds plus 10kts b. Reduce ... d. Fly a normal approach to stalling speed and then drop the aeroplane vertically onto the water

Last Answer : c. Fly a normal approach but keep the gear up and land at lowest possible speed with the nose raised for the tail to strike first

Description : An aircraft is travelling at 120 kts, what angle of bank would be required for a rate 1(one) turn? a. 30° b. 12° c. 18° d. 35°

Last Answer : c. 18°

Description : You are cruising at FL 200, OAT is -40°C, sea level pressure is 1033 hPa. Calculate the true altitude. a. 20,660 ft b. 21,740 ft c. 18,260 ft d. 19, 340 ft

Last Answer : d. 19, 340 ft

Description : A stall warning device must be set to operate: a. At the stalling speed b. At a speed just below the stalling speed c. At a speed about 5% to 10% above the stalling speed d. At a speed about 20% above the stalling speed

Last Answer : c. At a speed about 5% to 10% above the stalling speed

Description : On an ILS approach, you are told that the weather has dropped below company minima. When must you abort the approach? a. Start of the glide-slope descent b. FAF c. Inner marker d. Outer marker

Last Answer : d. Outer marker