LCS OOD Meteorology Exam Questions
and Answers
Lapse Rate - Answer-The rate at which temperature decreases with an increase in altitude
3.6 degrees F per 1000ft
Dry Adiabatic Lapse Rate - Answer-the rate at which dry or unsaturated air parcels cool as it rises or falls
5.5 degrees F per 1000ft
Saturated Adiabatic Lapse Rate - Answer-The rate at which saturated air cools
3.2 degrees F per 1000ft
Water vapor is _________ than air? - Answer-lighter
Relative Humidity (%) is - Answer-The amount of water vapor a given volume of air holds compared to
the maximum amount it could hold at a given temperature. Indicating how close the air is to reaching
saturation.
, Dew Point (Temperature) - Answer-The temperature at which the water vapor in the air becomes
saturated and condensation begins.
Humidity is measured with... - Answer-Psychrometer
Air pressure is measured with... - Answer-Barometer
Standard Atmospheric Pressure - Answer-1013.25 mb
29.92 Hg
Lines of equal atmospheric pressure are called... - Answer-Isobars
Close isobars indicate... - Answer-Steeper pressure gradient and stronger winds
Isobars are spaced... - Answer-4 mb apart
Cirrus - Answer-Wispy, feathery clouds that form at high levels
Cirrostratus - Answer-Thin whitish veil of high clouds
Cirrocumulus - Answer-High puffy clouds
Altostratus - Answer-Clouds at mid-level that form a light sheet that lets the sun or moon show as a
bright spot
Altocumulus - Answer-Medium level cumulus cloud that is higher than regular cumulus clouds. Lead to
precipitation.
and Answers
Lapse Rate - Answer-The rate at which temperature decreases with an increase in altitude
3.6 degrees F per 1000ft
Dry Adiabatic Lapse Rate - Answer-the rate at which dry or unsaturated air parcels cool as it rises or falls
5.5 degrees F per 1000ft
Saturated Adiabatic Lapse Rate - Answer-The rate at which saturated air cools
3.2 degrees F per 1000ft
Water vapor is _________ than air? - Answer-lighter
Relative Humidity (%) is - Answer-The amount of water vapor a given volume of air holds compared to
the maximum amount it could hold at a given temperature. Indicating how close the air is to reaching
saturation.
, Dew Point (Temperature) - Answer-The temperature at which the water vapor in the air becomes
saturated and condensation begins.
Humidity is measured with... - Answer-Psychrometer
Air pressure is measured with... - Answer-Barometer
Standard Atmospheric Pressure - Answer-1013.25 mb
29.92 Hg
Lines of equal atmospheric pressure are called... - Answer-Isobars
Close isobars indicate... - Answer-Steeper pressure gradient and stronger winds
Isobars are spaced... - Answer-4 mb apart
Cirrus - Answer-Wispy, feathery clouds that form at high levels
Cirrostratus - Answer-Thin whitish veil of high clouds
Cirrocumulus - Answer-High puffy clouds
Altostratus - Answer-Clouds at mid-level that form a light sheet that lets the sun or moon show as a
bright spot
Altocumulus - Answer-Medium level cumulus cloud that is higher than regular cumulus clouds. Lead to
precipitation.
