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Weather Evaluation

Multi-choice

Question

Which would likely be the best source of lift?

Answers

a grass field.

a lake.

a corn field.

a gravel pit.

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Question

The most important atmospheric element from the weather standpoint is:

Answers

water vapor.

nitrogen.

oxygen.

wind.

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Question

Clouds form when moist air over-runs cold air as the warm air:

Answers

is cooled by the cold air underneath.

is cooled by the surrounding cold air aloft.

becomes unstable as a result of cooling from below.

cools as a result of expansion as it rises.

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Question

Wind is caused by:

Answers

the rotation of the earth.

friction between the air and the ground.

horizontal pressure differences in the atmosphere.

the movement of fronts.

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Question

In the northern hemisphere the wind blows:

Answers

clockwise about a high and clockwise about a low.

counter-clockwise about a high, and counter-clockwise about a low.

clockwise about a high, and counter-clockwise about a low.

counter-clockwise about a high, and clockwise about a low.

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Multi-choice

Question

A front is:

Answers

a narrow transition zone between cyclone and anticyclone.

a line of thunderstorms.

a narrow transition zone between two air masses.

a thick cloud layer which covers a wide area.

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Question

The general characteristics of the warm front are:

Answers

good flying weather.

clear but unstable air.

clear, good ceilings and stable air.

precipitation, low ceilings and poor visibility.

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Question

The kind of front that accompanies a line squall is a:

Answers

cold front.

warm front.

stationary front.

occluded front.

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Question

The dissipation of fog is assumed to result from:

Answers

an increase in wind to blow the fog away.

condensation of the suspended water droplets in the fog in the form of rain or dew, thus ridding the suspended droplets from the atmosphere.

heating from below by sunlight which filters down through the fog.

cooling the airmass resulting in a decrease in the vapor pressure.

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Question

A pilot can expect airframe icing when flying in:

Answers

clear air with temperatures below 0 degrees C.

with visible moisture present and temperatures at or below 0 degrees C.

cloud with temperatures above 0 degrees C.

under any of the above conditions.

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Multi-choice

Question

Some of the hazards of thunderstorms are turbulence, hail,and lightning. The type of cloud in which these conditions are likely to occur is:

Answers

nimbostratus.

altocumulus.

stratocumulus.

cumulonimbus.

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Question

Severe turbulence in mountain waves would most likely be associated with:

Answers

rotor cloud.

cap cloud.

lenticular cloud.

cumulonimbus cloud.

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Question

The Dewpoint is:

Answers

a figure representing relative humidity.

the temperature to which air must be cooled at constant pressure to become saturated.

the amount of moisture present in the air.

the temperature to which the air must be warmed to become saturated.

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Question

The main source for weather conditions between reporting stations is from:

Answers

pilot reports en route (PIREPS).

Transport Canada control towers.

commercial broadcast stations.

weather sequence reports.

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Question

METAR CYXE 292000Z CCA 30015G25KT 3/4SM R33/4000FT/D -SN BLSN BKN008 OVC040 13/12 A2992 REFZRA WS RWY33 RMK SF5 SC3 VIS 3/8 TO NW SLP134
Of what significance is the temperature dewpoint spread in this report?

Answers

The weather should clear rapidly.

Gusty surface winds can be expected.

The fog and the rain showers are a result of the spread.

The spread will lead to a rising barometer.

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Multi-choice

Question

The following cloud type are indicated in order of ascending altitude:

Answers

cumulus - altocumulus - cirrus.

cirrus - cumulus - altocumulus.

cirrus - altocumulus - cumulus.

cumulus - cirrus - cirrostratus.

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Question

If a negative lapse rate is found beginning at 1000 ft. ASL:

Answers

the standard rate will be -1.8 degrees Celsius per 1000 ft.

the water vapour content will decrease above 1000 ft.ASL.

a temperature inversion will exist above 1000 ft. ASL.

a cold front is approaching.

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Question

A depression is an area of:

Answers

high pressure in the atmosphere.

low pressure in the atmosphere.

low ground elevation.

low air temperature in relation to the surrounding air.

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Question

Unless otherwise noted, cloud bases are forecast in height:

Answers

ASL in both the Area Forecast and the TAF.

AGL in both the Area Forecast and the TAF.

AGL in Area Forecast and ASL in the TAF.

ASL in the Area Forecast and AGL in the TAF.

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Question

TAF CYYQ 071030Z 071111 30010KT WS015/35030KT P6SM IC SCT250 FM2100Z 26010KT WS015/35030KT P6SM SCT030 SCT100 BKN250 FM0200Z 33015KT P6SM BKN030 BKN100 TEMPO 0209 3SM -SN FM0900Z 34020KT 3SM BLSN OVC020 TEMPO 0911 1SM -SN BLSN OVC020 RMK NXT FCST BY 17Z=
From the above TAF. The cloud condition at Churchhill (CYYQ) is forecast to:

Answers

thicken and lower.

remain scattered until 0900Z.

become overcast at 200 feet.

remain clear.

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