Heated Air at the Equator

question 27

Multiple Choice

Heated air at the equator:

• A) Rises and cools
• B) Rises and warms
• C) Moves towards the equator
• D) Moves away from the equator

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Definitions:

Pop-off Valve

A safety device designed to release excess pressure from a system, such as an air tank or steam boiler, to prevent over-pressurization and potential damage.

Governor Cut-out Pressure

The maximum pressure at which an air compressor governor stops the compressor from pumping air into the air storage tanks, typically in air brake systems.

Governor Cut-in Pressure

The specific air pressure level at which an air compressor’s governor allows the compressor to start building air pressure in a pneumatic system.

Tractor Spring Brake

A braking system used in heavy vehicles like tractor-trailers, which utilizes spring pressure for parking and emergency brake applications.