JEPPESEN PRIVATE PILOT CHAPTER
6 QUESTIONS AND CORRECT
SOLUTIONS
Nimbostratus Clouds ✅✅ANSW-Gray or black clouds that can be more than several thousand of
feet thick, contain large quantities of moisture, and produce widespread areas of rain or snow. If
temperatures are near or below freezing, they may create heavy aircraft icing.
Low Cloud
6-20
Stratocumulus Clouds ✅✅ANSW-White, puffy clouds that form as stable air is lifted.
They often form as a stratus layer breaks up or as cumulus clouds spread out.
Low cloud
6-20
Fog ✅✅ANSW-A low cloud that has its base within 50 feet of the ground
Low cloud
6-21
Radiation Fog ✅✅ANSW-forms on clear, calm, humid, nights when the earth's surface cools
rapidly by radiation which cools the surrounding air to its dewpoint.
6-21
Advection Fog ✅✅ANSW-a fog formed when warm, moist air is blown over a cool surface. Winds
up to 15 knots will intensify the fog
6-21
, Upslope Fog ✅✅ANSW-Fog created when air moves up a slope and cools adiabatically
6-21
Steam Fog ✅✅ANSW-Cold, dry air moves over warm water. Moisture is added to the airmass and
steam fog forms.
6-21
Middle Clouds ✅✅ANSW-Bases that range from about 6,500 to 20,000 feet AGL.
Composed of water, ice crystals, or supercooled water.
Includes:
Altostratus
Altocumulus
6-21
Altostratus Clouds ✅✅ANSW-Altostratus clouds are flat, dense clouds that cover a wide area.
They are a uniform gray or gray-white in color. Although they produce minimal turbulence, they may
produce moderate aircraft icing.
Middle cloud
6-22
Altocumulus Clouds ✅✅ANSW-Altocumulus clouds are gray or white, patchy clouds of uniform
appearance that often form when altostratus clouds start to break up. They usually extend over a
wide area, produce light turbulence, and may contain supercooled water droplets.
Middle cloud
6-22
6 QUESTIONS AND CORRECT
SOLUTIONS
Nimbostratus Clouds ✅✅ANSW-Gray or black clouds that can be more than several thousand of
feet thick, contain large quantities of moisture, and produce widespread areas of rain or snow. If
temperatures are near or below freezing, they may create heavy aircraft icing.
Low Cloud
6-20
Stratocumulus Clouds ✅✅ANSW-White, puffy clouds that form as stable air is lifted.
They often form as a stratus layer breaks up or as cumulus clouds spread out.
Low cloud
6-20
Fog ✅✅ANSW-A low cloud that has its base within 50 feet of the ground
Low cloud
6-21
Radiation Fog ✅✅ANSW-forms on clear, calm, humid, nights when the earth's surface cools
rapidly by radiation which cools the surrounding air to its dewpoint.
6-21
Advection Fog ✅✅ANSW-a fog formed when warm, moist air is blown over a cool surface. Winds
up to 15 knots will intensify the fog
6-21
, Upslope Fog ✅✅ANSW-Fog created when air moves up a slope and cools adiabatically
6-21
Steam Fog ✅✅ANSW-Cold, dry air moves over warm water. Moisture is added to the airmass and
steam fog forms.
6-21
Middle Clouds ✅✅ANSW-Bases that range from about 6,500 to 20,000 feet AGL.
Composed of water, ice crystals, or supercooled water.
Includes:
Altostratus
Altocumulus
6-21
Altostratus Clouds ✅✅ANSW-Altostratus clouds are flat, dense clouds that cover a wide area.
They are a uniform gray or gray-white in color. Although they produce minimal turbulence, they may
produce moderate aircraft icing.
Middle cloud
6-22
Altocumulus Clouds ✅✅ANSW-Altocumulus clouds are gray or white, patchy clouds of uniform
appearance that often form when altostratus clouds start to break up. They usually extend over a
wide area, produce light turbulence, and may contain supercooled water droplets.
Middle cloud
6-22
