Copyright 2022 Pearson Education, Inc.

1 Copyright © 2022 Pearson Education, Inc.Fundamentals of HVAC/R, 4e (Stanfield/Skaves) Unit 1 Introduction to Heating, Ventilation, Air Conditioning, and Refrigeration

1) The first air-conditioning system was patented in 1844 by:

• Willis Carrier.
• Thomas Edison.

C)Benjamin Franklin.

• John Gorrie.

Answer: D

Page Ref: 3

LO: 1.1

2) Producing ice began over 3,000 years ago using the:

• Mechanical vaporization method.
• Water evaporation method.
• Distillation method.
• Pressure-temperature method.

Answer: B

Page Ref: 4

LO: 1.1

3) Residential central heating and cooling systems became popular in:

• The late 1950s.
• The mid 1970s.
• The late 1960s.
• The late 1970s.

Answer: C

Page Ref: 3

LO: 1.1

4) Why is the capacity of air conditioning units stated in tons?

• Because early cooling used tons of ice.
• Because the unit capacity is directly related to its weight.
• Ton is an acronym for "total output nominal" rating.
• Air conditioners are not rated in tons.

Answer: A

Page Ref: 3

LO: 1.1

5) Who is often cited for the development of modern air conditioning?

• John Gorrie
• Dave Lennox
• David Skaves
• Willis Carrier

Answer: D

Page Ref: 3

LO: 1.1

Fundamentals of HVACR 4e Carter Stanfield, David Skaves (Test Bank All Chapters, 100% Original Verified, A+ Grade) 1 / 4

2 Copyright © 2022 Pearson Education, Inc.

6) For a building to be properly ventilated:

• A vent hole must be installed in the center of a building space.
• Air must be able to flow and exchange properly throughout the building space.
• Air must be ducted from the floor to the ceiling.
• Vents should always be installed from the sides of a building structure.

Answer: B

Page Ref: 2

LO: 1.1

7) Which method of freezing preserves the quality and taste of food?

• Slow, natural freezing
• Quick freezing
• Any speed is fine because frozen is frozen.
• The speed is determined by dividing the weight by the specific gravity of the food.

Answer: B

Page Ref: 6

LO: 1.1

8) Why does food that is frozen quickly taste better than food that is frozen slowly?

• Smaller ice crystals are formed.
• Molecular recombination
• Adiabatic rehydration
• Larger ice crystals are formed.

Answer: A

Page Ref: 4

LO: 1.1

9) Who developed the quick freezing process for preserving food?

• Clarence Birdseye
• Willis Carrier
• Dave Lennox
• Carter Stanfield

Answer: A

Page Ref: 4

LO: 1.1

10) Freezing food slowly:

• Preserves the food's taste.
• Preserves the food's nutritious value.
• Was developed by Clarence Birdseye.
• Forms large ice crystals that break the cell walls of the food.

Answer: D

Page Ref: 4

LO: 1.1

• / 4

3 Copyright © 2022 Pearson Education, Inc.

11) Refrigeration refers to space temperatures:

• Below 40°F.
• Below 60°F.
• Below 32°F.
• Below 0°F.

Answer: B

Page Ref: 4

LO: 1.1

12) The main divisions of the HVACR industry include:

• Heating and cooling residential building structures.
• Ventilating and cooling commercial building structures.
• Air conditioning, heating, or refrigerating industrial building structures.
• Cooling, heating, ventilating, or refrigerating specific spaces.

Answer: A

Page Ref: 1, 2, 3

LO: 1.1

13) Residential heating systems typically range from:

• 100,000 BTU to 120,000 BTU.
• 50,000 BTU to 150,000 BTU.
• 75,000 BTU to 125,000 BTU.
• 75,000 BTU to 200,000 BTU.

Answer: B

Page Ref: 6

LO: 1.1

14) Commercial central heating and cooling systems refer to:

• Single-story office buildings only.
• Single- to three-story office buildings only.
• Structures used for businesses in general.
• Retail shopping malls only.

Answer: C

Page Ref: 6

LO: 1.1

15) Commercial and industrial refrigeration systems:

• Refer to retail food and cold-storage equipment and facilities.
• Are used only in supermarkets.
• Are only used in production facilities.
• Use three-phase equipment only.

Answer: A

Page Ref: 6

LO: 1.1

• / 4

4 Copyright © 2022 Pearson Education, Inc.16) ) The majority of refrigeration systems used for domestic, commercial, and industrial

applications are:

• Mechanical vapor condensing systems.
• Condensing heat pump systems.
• Mechanical vapor compression systems.
• Centrifugal vapor condensing systems.

Answer: C

Page Ref: 5

LO: 1.2

17) In the modern refrigeration cycle, the compressor:

• Transfers heat to the outdoor air.
• Reduces the pressure of the liquid from the condenser to the evaporator.
• Pumps low-pressure, low-temperature vapor to high-pressure, high-temperature vapor.
• Increases the pressure of the liquid refrigerant so that it will circulate through the system.

Answer: D

Page Ref: 4

LO: 1.2

18) Most consumption of electricity and natural gas is used for:

• Military operations.
• Residential lighting.
• Commercial and industrial lighting.
• Heating and cooling.

Answer: D

Page Ref: 7

LO: 1.3

19) The difference between residential heating and cooling systems and commercial/industrial

heating, cooling, or refrigerating facilities is:

• The size of the building or facility.
• Whether the equipment or system is in a home or in a business.
• The amount of energy the building or facility uses.
• The number of people that occupy the building or facility.

Answer: B

Page Ref: 6

LO: 1.3

20) Environmental heating and air conditioning refers to:

• Cooling the air, food products, and industrial machinery.
• Cooling and heating homes and offices.
• Controlling air temperature, humidity, circulation, and cleanliness.
• Managing the air outside by reducing toxins and pollutants.

Answer: C

Page Ref: 4

LO: 1.3

• / 4