Question 1

What causes precipitation to occur?

Accepted Answer

Gravity, when water droplets grow sufficiently in size and weight

Answer

Cooling of the ground

Answer

Evaporation of water droplets

Answer

Horizontal air currents

Question 2

What is the process called where water droplets collide and grow in size?

Accepted Answer

Coalescence

Answer

Sublimation

Answer

Condensation

Answer

Deposition

Question 3

Which type of fog forms when warm, damp air drifts over a colder surface?

Accepted Answer

Advection fog

Answer

Ice fog

Answer

Steam fog

Answer

Radiation fog

Question 4

What is haze composed of?

Accepted Answer

Very small water droplets, dust, or salt particles

Answer

Supercooled water droplets

Answer

Large water droplets

Answer

Ice crystals

Question 5

When is haze identified in weather reports?

Accepted Answer

When visibility is 5 kilometers or less

Answer

When visibility is 10 kilometers or less

Answer

When visibility is greater than 5 kilometers

Answer

When visibility is 1 kilometer or less

Question 6

What is flight visibility?

Accepted Answer

The average range of visibility forward from the cockpit of an airplane in flight

Answer

The distance at which objects are visible over at least half the horizon

Answer

The visibility at an airport as reported by an observer

Answer

The distance a pilot can see over the nose of the airplane towards the ground

Question 7

What does RVR (Runway Visual Range) represent?

Accepted Answer

The distance a pilot can see the lights or markers along the runway

Answer

The distance at which objects are visible over at least half the horizon

Answer

The average range of visibility forward from the cockpit

Answer

The visibility at an airport as reported by an observer

Question 8

What does VMC stand for?

Accepted Answer

Visual Meteorological Conditions

Answer

Visual Monitoring Conditions

Answer

Variable Monitoring Conditions

Answer

Variable Meteorological Conditions

Question 9

What does IMC indicate?

Accepted Answer

Visibility, distance from cloud, and ceiling are below the minima

Answer

Visibility is greater than 10 kilometers

Answer

Visibility is restricted due to haze

Answer

Visibility, distance from cloud, and ceiling are equal to or better than the minima

Question 10

What causes lake-effect snowfalls?

Accepted Answer

Cold air passing over relatively warm waters

Answer

Cold air mixing with warm air over valleys

Answer

Warm air mixing with cold air over mountains

Answer

Warm air passing over cold land

Question 11

What is convective instability?

Accepted Answer

A condition where the lower levels of air are warmed and moistened, becoming lighter than the air above

Answer

A condition where air cools as it rises up a slope

Answer

A condition where the air becomes cooler than the air above it

Answer

A condition where warm air is trapped under a layer of cold air

Question 12

What are the three basic requirements for thunderstorm formation?

Accepted Answer

Unstable air, lifting action, and high moisture content

Answer

Cold air, high pressure, and low moisture content

Answer

Warm air, high pressure, and low humidity

Answer

Stable air, lifting action, and low moisture content

Question 13

What is a downburst?

Accepted Answer

A severe downward rush of air that spreads out near the ground

Answer

A strong upward rush of air

Answer

A rotating column of air

Answer

A horizontal gust of wind

Question 14

What are microbursts?

Accepted Answer

Smaller downbursts with a diameter of less than 2 nautical miles

Answer

Strong upward drafts in a thunderstorm

Answer

Small, rotating columns of air

Answer

Areas of heavy lightning activity

Question 15

What is the noise caused by the sudden heating and expansion of air along the path of a lightning flash?

Accepted Answer

Thunder

Answer

Wind shear

Answer

Hail

Answer

Static discharge

Question 16

What does lightning detection equipment detect?

Accepted Answer

Electromagnetic discharges associated with vertical air currents

Answer

Rainfall density

Answer

Ice crystal formation

Answer

Wind speed and direction

Question 17

How are static discharges displayed on lightning detection equipment?

Accepted Answer

As green dots on the screen

Answer

As yellow lines on the screen

Answer

As blue circles on the screen

Answer

As red dots on the screen

Question 18

What does weather radar detect and display?

Accepted Answer

Rainfall density of targets under observation

Answer

Wind speed and direction

Answer

Cloud height and thickness

Answer

Lightning activity

Question 19

What are the three color-coded levels of precipitation intensity on weather radar?

Accepted Answer

Green, yellow, and red

Answer

Purple, pink, and red

Answer

White, gray, and black

Answer

Blue, orange, and red

Question 20

What is a steep rain gradient?

Accepted Answer

A precipitation rate that changes from minimum to maximum over a short distance

Answer

A sudden drop in temperature due to rain

Answer

A gradual change in precipitation rate over a large area

Related quizzes

Related quizzes