Free CPL Aerodynamics Questions and Answers

Question 1

What are the effects of extended ailerons?

Accepted Answer

produce greater lift and control during slow flight

Answer

push the low wing down top wing up

Answer

lift top wing up low wing down

Answer

extend the surface flow for high-speed safety

Question 2

The diagram below is a rough incomplete graph of induced drag.

Accepted Answer

When speed is high, induced drag is low, and parasitic drag is high

Answer

When speed is low, induced drag is low, and parasitic drag is low

Answer

When speed is high, induced drag is low, and parasitic drag is low

Answer

When speed is high, induced drag is high

Question 3

To achieve an emergency off-field landing with the minimum kinetic energy into a tea tree plantation, the PIC must:

Accepted Answer

land at the lowest possible airspeed

Answer

come in fast and pull back hard to stall 20 feet up

Answer

land at the lowest possible angle of attack

Answer

hit with a wing tip

Question 4

The greatest fuel range for an aircraft will be achieved at:

Accepted Answer

the lowest drag

Answer

the lowest engine rpm

Answer

the lowest angle of attack

Answer

the lowest coefficient of lift

Question 5

The net effect of all forces acting on an aircraft wing are:

Accepted Answer

none of these

Answer

the total resultant

Answer

the net reactive coefficient

Answer

the net reaction

Question 6

What is the purpose of a spoiler on an aircraft?

Accepted Answer

helps slow the aircraft, helps descend, and helps stick the aircraft to the ground upon landing

Answer

helps descend and helps stick the aircraft to the ground upon landing

Answer

helps the aircraft descend and slow down

Answer

provides downforce to stick the aircraft to the runway upon landing

Question 7

To achieve the greatest range in a single Cessna 182, the power must:

Accepted Answer

be set to correspond with the minimum drag airspeed

Answer

be set to correspond with the minimum induced drag airspeed

Answer

be set to correspond with the minimum parasitic drag airspeed

Answer

none of these

Question 8

Bernoulli's principle found static pressure:

Accepted Answer

decreased when the velocity of air increased

Answer

stayed the same regardless of the velocity of the air

Answer

increased when the velocity of air increased

Answer

none of these

Question 9

Lift is produced as a result of:

Accepted Answer

high pressure air underneath a wing and low pressure above a wing

Answer

airflow pushing the wing up

Answer

air pushing from low-pressure to high pressure

Answer

low air pressure underneath a wing and high pressure above a wing

Question 10

When applying Bernoulli's theory to an aircraft wing it is logical to say:

Accepted Answer

the wing will have low pressure on the longest side and high pressure on the shortest side

Answer

the wing will have high pressure on the bottom side and low pressure on the top side

Answer

the wing will have high pressure on the longest side and low pressure on the shortest side

Answer

the wing will have low pressure on the bottom side and high pressure on the top side