The Heterosphere Is the Layer of the Atmosphere in Which

question 121

Multiple Choice

The heterosphere is the layer of the atmosphere in which the gases are _______ because of _______.

• A)well mixed; thermal motions (i.e.,convection)
• B)well mixed; the influence of gravity which causes gases of different weight to diffuse randomly
• C)poorly mixed; the influence of gravity which causes gases of different weight to separate into layers
• D)poorly mixed; thermal motions (i.e.,convection)

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Definitions:

Contactor

A special-purpose relay designed to establish and interrupt the power flow of high-current electric circuits.

Heavy Power Loads

Electrical loads that consume a significant amount of power, typically found in industrial settings.

Overload Relay

A special-purpose relay designed so that its contacts transfer whenever its current exceeds a predetermined value. Overload relays are used with electric motors to prevent motor burnout due to mechanical overload.