Unit 1 Quiz

What is the term "heat" defined as?

• The device used to measure temperature

• A state of matter

• Energy that causes molecules to be in motion and to raise the temperature of a substance

• A unit of temperature measurement

What term is used to describe the level of heat or molecular activity, expressed in Fahrenheit, Rankine, Celsius, or Kelvin units?

• Heat

• Temperature

• Pressure

• Energy

Why are accurate temperature readings important in the HVAC/R industry?

• They are required for system documentation

• They determine the color of the heating system

• They influence decisions regarding system operation

• They are only important for educational purposes

What type of thermometer is shown in Figure 1.1?

• Liquid-in-glass thermometer

• Infrared thermometer

• Bimetallic strip thermometer

• Thermocouple thermometer

What is the term used to describe the weight of the atmosphere's gases pressing down on the Earth?

• Atmospheric weight

• Atmospheric density

• Atmospheric pressure

• Atmospheric mass

At what value is atmospheric pressure equal at sea level and 70°F?

• 14.696 psi

• 15.000 psi

• 13.500 psi

• 12.960 psi

What equipment is used to measure the system operating pressures in air-conditioning and refrigeration equipment?

• Thermometer

• Barometer

• Refrigeration gauge manifold

• Anemometer

What is the importance of knowing system operating pressures and various temperature readings in HVAC/R systems?

• They are useful for weather forecasting.

• They provide valuable information to properly evaluate and troubleshoot heating and cooling equipment.

• They are only necessary for installing new equipment.

• They are used to measure the efficiency of electrical appliances.

Temperature can be thought of as a description of the level of heat and is also known as what?

• Heat content

• Heat intensity

• Molecular motion

• Heat capacity

What is the boiling point of water at standard atmospheric conditions?

• 32°F

• 203°F

• 212°F

• 167°F