RYA Day Skipper Weather and Meteorology 2

Question 1

What weather feature is characterised by closely spaced isobars on a weather chart?

Accepted Answer

Strong winds due to a steep pressure gradient

Answer

Calm conditions

Answer

Fog

Answer

High pressure

Question 2

In which direction does wind flow around a low-pressure system in the Northern Hemisphere?

Accepted Answer

Anticlockwise

Answer

Clockwise

Answer

Directly towards the centre

Answer

Directly away from the centre

Question 3

What does 'Buys Ballot's Law' help a sailor determine?

Accepted Answer

The approximate direction to the centre of a low-pressure system from the wind direction

Answer

The height of waves

Answer

The tidal range

Answer

The visibility forecast

Question 4

What type of cloud is most associated with an approaching cold front?

Accepted Answer

Cumulonimbus with heavy showers and possible thunderstorms

Answer

Cirrus

Answer

Stratus

Answer

Fair-weather cumulus

Question 5

What is the primary cause of sea fog around UK coasts?

Accepted Answer

Warm, moist air moving over cooler sea surface, causing the air to cool below its dew point

Answer

Cold air over warm sea

Answer

Volcanic activity

Answer

Heavy rainfall

Question 6

On the Beaufort Scale, what wind speed range does Force 6 ('strong breeze') correspond to?

Accepted Answer

22-27 knots

Answer

17-21 knots

Answer

28-33 knots

Answer

34-40 knots