ASTB-E ASTB-E Aviation & Nautical Information

Question 1

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

Accepted Answer

The angle between the wing chord line and the relative wind

Answer

Angle of attack is the angle between the chord line of the wing and the direction of the oncoming relative wind.

Question 2

Which instrument measures an aircraft's altitude by sensing atmospheric pressure?

Accepted Answer

Altimeter

Answer

The altimeter measures altitude by detecting changes in static atmospheric pressure, which decreases as altitude increases.

Question 3

What is the primary purpose of an aircraft's rudder?

Accepted Answer

Control yaw

Answer

The rudder is a vertical control surface on the tail that controls yaw, rotating the aircraft around its vertical axis.

Question 4

In nautical terminology, what does 'port' refer to?

Accepted Answer

The left side of a vessel

Answer

Port refers to the left side of a vessel when facing forward; starboard is the right side.

Question 5

What causes an aircraft to stall?

Accepted Answer

Exceeding the critical angle of attack

Answer

A stall occurs when the wing exceeds the critical angle of attack, causing airflow to separate and lift to decrease dramatically.

ASTB-E - Aviation Selection Test Battery Practice Test