Aviation Weather (Clouds) Quiz # 10

Name

1.	What clouds have the greatest turbulence?

	A. Towering cumulus.
	B. Cumulonimbus.
	C. Nimbostratus.

2.	What types of fog depend upon wind in order to exist?

	A. Radiation fog and ice fog.
	B. Steam fog and ground fog.
	C. Advection fog and upslope fog.

3.	Clouds are divided into four families according to their

	A. outward shape.
	B. height.
	C. composition.

4.	The suffix "nimbus", used in naming clouds, means

	A. a cloud with extensive vertical development.
	B. a rain cloud.
	C. a middle could  containing ice pellets.

5.	The conditions necessary for the formation of cumulonimbus clouds are a lifting action and

	A. unstable air containing an excess of condensation nuclei.
	B. unstable, moist air.
	C. either stable or unstable air.

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