EASA Drone License A2

Question 1

If a METAR reports the sky condition as 'BKN' (Broken), what is the cloud coverage?

Accepted Answer

5 to 7 oktas (eighths); this constitutes a 'ceiling' in aviation

Answer

1 to 2 oktas (eighths)

Answer

8 oktas (fully overcast)

Answer

Only high-altitude cirrus clouds

Question 2

If the environmental lapse rate is much greater than the standard 2°C per 1,000 ft (e.g., the air cools very rapidly with height), the atmosphere is considered:

Accepted Answer

Unstable, which promotes the development of strong updrafts, turbulence, and convective clouds

Answer

Absolutely stable with no chance of clouds

Answer

A perfect vacuum for drone flight

Answer

A permanent temperature inversion

Question 3

Which meteorological tool uses radio waves to determine the location, intensity, and movement of precipitation?

Accepted Answer

Weather Radar

Answer

Anemometer

Answer

Barometer

Answer

Hygrometer

Question 4

Why is 'Rime Ice' considered highly dangerous to aircraft aerodynamics?

Accepted Answer

It is rough and milky, altering the aerodynamic shape of the airfoil rapidly, destroying lift and increasing drag

Answer

It dissolves the plastic of the drone

Answer

It burns the motors

Answer

It is completely invisible, making it impossible to detect

Question 5

How does a standard quadcopter achieve yaw control (rotation around the vertical axis)?

Accepted Answer

By altering the speed of the clockwise-spinning motors relative to the counter-clockwise-spinning motors, creating a torque imbalance

Answer

By tilting a physical tail rotor

Answer

By shifting the internal battery weight left or right

Answer

By using movable aerodynamic flaps on the arms

Question 6

What is the 'Lapse Rate'?

Accepted Answer

The rate at which atmospheric temperature decreases with an increase in altitude

Answer

The rate at which the drone's battery depletes

Answer

The speed of the wind at 10,000 feet

Answer

The time it takes for fog to clear

Question 7

If your drone's battery indicates it has 30% charge remaining, but the voltage drops drastically as soon as you push the throttle forward, what is happening?

Accepted Answer

The battery is likely experiencing severe voltage sag due to high internal resistance (age/damage) or cold temperatures, meaning it cannot provide the necessary current

Answer

The motors are becoming more efficient

Answer

The telemetry software is stuck

Answer

The drone is entering a hyper-lapse video mode

Question 8

In meteorology, a 'Cold Front' is defined as:

Accepted Answer

The leading edge of a cooler mass of air replacing at ground level a warmer mass of air

Answer

A stationary cloud layer in winter

Answer

The area where a warm air mass overrides a cold air mass

Answer

A sudden drop in temperature during the night

Question 9

What does 'VFR' stand for in manned aviation, and why should a drone pilot understand it?

Accepted Answer

Visual Flight Rules; understanding it helps drone pilots anticipate the behavior and altitudes of small manned aircraft sharing the lower airspace

Answer

Vertical Flight Rules; it applies to all drones taking off vertically

Answer

Variable Frequency Radio; it determines the drone's transmission band

Answer

Velocity Flow Rate; it dictates the speed limit of the drone

Question 10

In a METAR, how is a completely calm wind reported?

Accepted Answer

00000KT

Answer

CALMKT

Answer

VRB00KT

Answer

NILWIND

Examination quizzes EASA Drone License A2

EASA Drone License A2 10 Questions no time limit