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Private Pilot License Written Test Prep Quiz – Aviation Weather #2

Private Pilot License Written Test Practice Quiz – Weather #2

These study notes and the quiz were written to help me pass the private pilot license written test. They are based on the information two books – From The Ground Up, and Private Pilot Exam Prep Guide, by Sharper Edge.

The atmosphere is heated from below by long wave radiation reflecting back off the Earth. The heat waves coming from the sun are short wave. They pass through the atmosphere without heating it.


There are other ways heat moves around the atmosphere, heating different parts at different rates.

Convection is when warm air rises and is replaced by descending cooler air. This takes heat to the upper layers of the troposphere.

Advection is when cool air is heated by moving over warm earth.

Turbulence arising from friction between the earth and an air mass mechanically mixes air, thereby distributing heat.

Compression/ subsidence occurs when air sinks, leading to increased pressure. The compression raises temperatures by creating heat.

Isotherms are lines on a map that join places of equal temperatures. This picture is colored, but the isotherms are the actual lines. isotherm

Isobars connect areas of equal pressure.

Isotachs connect areas of constant wind velocity.

In a standard atmosphere the environmental lapse rate is 1.98 degrees per 1,000′.

A dry adiabatic lapse rate is 3 degrees per 1,000′.

When water vapour condenses it gives off heat, which in turn slows the cooling process. More water vapour means more potential condensation, so the wet or saturated adiabatic lapse rate is lower, like 1.5 degrees per 1,000′.

A standard atmosphere has a sea level temperature of 15 degrees celsius, 29.92″ pressure, and an environmental lapse rate of 2 degrees celsius per 1,000′.

Here is the Private Pilot Written Test Prep Quiz – Aviation Weather #2

The atmosphere is heated from:



When warm air rises and is replaced by descending cooler air, taking warm air to the upper layers of the troposphere, is is called:




When cool air is heated by moving over warm earth it is called:




When friction between the earth and an air mass mechanically mixes the air, thereby distributing heat through the atmosphere, it is called:





When air sinks, leading to increased pressure, the compression creates heat. This is called:





Lines on a map that join places of equal temperatures are called:





Lines on a map that join places of equal pressure are called:





Lines on a map that join places of equal wind velocity are called:





In a standard atmosphere the environmental lapse rate is:





A dry adiabatic lapse rate is:





A wet or saturated adiabatic lapse rate is approximately:





A standard atmosphere has a sea level temperature of :







My name is Rob Chipman and I’m a realtor and pilot based in Vancouver, BC. I AM NOT A FLIGHT INSTRUCTOR AND I AM NOT OFFERING FLIGHT INSTRUCTION! I am sharing my study notes and other things I’ve learned while getting my education as a pilot. You’re welcome to make use of this information, but do not treat it as expert advice.

I really enjoy flying, real estate and the Chilcotin.  My company is Coronet Realty Ltd., located at 3582 East Hastings Street, Vancouver, BC, V5K 2A7. I have a C-150L that I own with two other pilots, based out of Pitt Meadows. Do not hesitate to contact me by email if I can help you do anything, especially if its likely to be interesting or concerns selling remote property in British Columbia.


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