2517NSC Aviation meteorology Part 1 – Practice Exam

Terrestrial radiation occurs
Only by day
Continually
Only at night
Only with clear skies
The structure or type of cloud, such as stratiform or cumuliform, is determined by
The method by which the air is lifted.
The relative humidity of the air.
The prevalence of condensation nuclei.
The stability of the air before lifting occurs.
The amount of water vapour that air can hold largely depends on:
The dewpoint.
Air temperature.
Stability of air.
Atmospheric pressure.
Moist, stable air flowing upslope can be expected to:
Produce stratiform clouds.
Cause showers and thunderstorms.
Develop convective turbulence.
Produce cumuliform clouds.
The presence of lenticular alto cumulus clouds is a good indication of
An approaching storm.
Very strong turbulence.
Heavy icing conditions.
Smooth flying conditions.
What conditions are necessary for the formation of thunderstorms
High humidity, lifting force, and unstable conditions.
High humidity, high temperature, and cumulus clouds.
High humidity, lifting force, and cumulus clouds.
What cloud types would indicate convective turbulence
Cirrus clouds.
Nimbostratus clouds.
Towering cumulus clouds.
In which situation is advection fog most likely to form
A warm, moist air mass on the windward side of mountains.
A warm, moist air mass moving over a colder land surface.
A light breeze blowing colder air out to sea.
Drizzle falling from warm air into cold air.
The equatorial trough moves further north than it does south because
The mid-summer surface temperatures are higher at any given latitude in the northern hemisphere because of the greater land mass.
The earth's axis is inclined to the plane of its orbit
The earth is closer to the sun during the northern summer.
There is more warm ocean surface in the northern hemisphere
The layer of the atmosphere in which most convection takes place is
The stratosphere
The tropopause
The troposphere
The convection zone
Vertical movement within the atmosphere becomes less vigorous above the height of the tropopause because
The air above is sinking
Cloud formation makes the air heavier
The environment no longer gets colder with increased height
The environment is colder than the rising air
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