Meteorology Quiz #1 - Airborne Aviation

Meteorology Quiz #1

This quiz is designed to test your knowledge of aviation meteorology.

Question 1

A wind in a terminal area forecast expressed as VRB30G45 would:

Always be associated with closely spaced isobars around a trough

Be improbable, since variable wind directions are only associated with light winds and high pressure systems

Probably be associated with a thunderstorm

Always be associated with closely spaced isobars around a ridge

Question 2

The validity of a METAR is:

3 hours

6 hours

30 hours

Not applicable

A METAR is a report, not a forecast.

Question 3

The wind direction is given in degrees:

Magnetic in both area and aerodrome forecasts

Magnetic in an area forecast, and true in an aerodrome forecast

True in both area and aerodrome forecasts

True in an area forecast, and magnetic in an aerodrome forecast

Refer to AIP GEN 3.5

Question 4

In a METAR for YAAA, the figures quoted immediately before the QNH read 9/8, and at YBBB they read 10/8. This means that, at place YAAA, the dry bulb is 9C and the:

Dew point is 8C and fog is closer to forming at YAAA than YBBB

Wet bulb is 8C and fog is closer to forming at YAAA than YBBB

Dew point is 8C and fog is closer to forming at YBBB than YAAA

Wet bulb is 8C and fog is closer to forming at YBBB than YAAA.

The closer the dry bulb to the dew point (the spread), the more likely fog is to form.

Question 5

A TAF includes the following:

INTER 0710/0714 2000 -SHSN

This forecasts, between the times indicated:

Showers and snow of expected duration 30 to 60 minutes

Showers of snow of expected duration 30 to 60 minutes

Showers and snow of expected duration less than 30 minutes

Showers of snow of expected duration less than 30 minutes

Refer to AIP GEN 3.5

Question 6

The validity period of an aerodrome forecast is from 0000Z on the 1st to 0600Z on the 2nd. In the forecast this is written:

0100/0206

010006

0100/06

01000206

Refer to AIP GEN 3.5

Question 7

In a TAF, the term FU VV030 means:

Smoke and a visibility of 3,000 metres

Smoke and a vertical visibility of 3,000 feet

Fumes and a visibility of 3.000 metres

Fumes and a vertical visibility of 3,000 feet

Refer to AIP GEN 3.5

Question 8

Observed intermediate QNH values are rounded:

Down so that the altimeter reading is from a pressure level slightly lower than MSL

Down so that the altimeter reading is from a pressure level slightly higher than MSL

Up so that the altimeter reading is from a pressure level slightly lower than MSL

Up so that the altimeter reading is from a pressure level slightly higher than MSL

Refer to AIP GEN 3.5 - Terrain clearance is thus slightly greater.

Question 9

When cruising below the transition layer (10,000') you can set a local QNH of a station along the route provided it is within:

10NM of the aircraft

50NM of the aircraft

100NM of the aircraft

200NM of the aircraft

Refer to AIP ENR 1.7

Question 10

A TAF commences and finishes as follows:

TAF YCOM 070635Z 0708/0720 ... Q 1020 1021 1019 1018

The forecast QNH for time 071320 is:

1020

1021

1019

1018

Refer to AIP GEN 3.5 - The period of validity if 90 minutes each side of the point forecasts.

Quiz ID: MET01 Created: 28-April-2010 Updated: 19-August-2011

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