AFCAT Aviation & Aeronautics

Question 1

According to Bernoulli's principle, what creates lift on an aircraft wing?

Accepted Answer

Lower air pressure above the wing and higher pressure below

Answer

Bernoulli's principle states that the curved upper surface of a wing speeds up airflow, lowering pressure above while slower air below creates higher pressure, generating lift.

Question 2

What does the term 'angle of attack' refer to in aviation?

Accepted Answer

The angle between the wing chord line and the relative airflow

Answer

Angle of attack is the angle between the wing's chord line and the oncoming relative airflow, directly controlling how much lift the wing generates.

Question 3

In aviation, what is a 'stall'?

Accepted Answer

When the aircraft exceeds its critical angle of attack and loses lift

Answer

A stall occurs when the wing exceeds its critical angle of attack, causing airflow to separate from the upper surface and causing a sudden loss of lift.

Question 4

What does Mach 1 represent?

Accepted Answer

The speed of sound

Answer

Mach 1 represents the speed of sound, approximately 1,235 km/h (343 m/s) at sea level under standard atmospheric conditions.

Question 5

What are ailerons primarily used for on an aircraft?

Accepted Answer

Controlling roll (banking left and right)

Answer

Ailerons are control surfaces on the trailing edge of each wing that work differentially to control roll, causing the aircraft to bank left or right.

(AFCAT) Air Force Common Admission Test Practice Test

(AFCAT) Air Force Common Admission Test Practice Test

AFCAT Aviation & Aeronautics