Which of the Following Best Describes Convection

question 96

Multiple Choice

Which of the following best describes convection?

• A) It is the process by which rocks sink in water.
• B) It is the process in which warm material expands and rises while cool material contracts and falls.
• C) It is the process in which warm material gets even warmer and cool material gets even cooler.
• D) It is the process in which a liquid separates according to density, such as oil and water separating in a jar.
• E) It is the process in which bubbles of gas move upward through a liquid.

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Definitions:

Green Coolant

A type of engine coolant that typically contains ethylene glycol or propylene glycol, known for its green color, used to regulate the temperature of an engine's cooling system.

Infrared Pyrometer

A device that measures temperature from a distance by detecting infrared radiation emitted by an object.

Scan Tool

A device used to interface with a vehicle's computer systems for diagnosing malfunctions and resetting system alerts.

Thermocouple

A device consisting of two different conductors that produces a voltage, proportional to a temperature difference, used for temperature measurements.