Hvac Module 1 Introduction to HVAC

Question 0

What is a condenser

Answer 0

A heat exchanger that transfers heat from the refrigerant flowing inside it to the air or water flowing over it

Question 1

What is a compressor

Answer 1

In a refrigeration system the mechanical device that converts low pressure low temperature refrigerant gas into high temperature high pressure refrigerant gas

Question 2

What is a Evaporator

Answer 2

A heat exchanger that transfers heat from the air flowing over it to the cooler refrigerant flowing through it

Question 3

What is a Expansion Device

Answer 3

Also know as the liquid metering device or metering. Provides a pressure drop that converts the high temperature high pressure liquid from the condenser in to the low temperature low pressure liquid refrigerant entering the evaporator

Question 4

What is a heat pump

Answer 4

A comfort air conditioner that is able to produce heat by reversing the mechanical refrigeration cycle

Question 5

What is heat transfer

Answer 5

The transfer of heat from a warmer substance to a cooler substance

Question 6

What is a Hydronic system

Answer 6

A heating or air conditioning system that uses water as a heat transfer medium

Question 7

What is Mechanical Refrigeration

Answer 7

the use of machinery to provide cooling

Question 8

What is Noxious

Answer 8

Harmful to health

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Question 9

What is a Toxic

Answer 9

Poisonous

Question 10

What are Humidifiers

Answer 10

Are used to add moisture to the air in cold weather months They are typically installed in the supply duct of a furnace

Question 11

What is a refriegerant

Answer 11

a substance used for cooling or refrigeration

Question 12

What is the difference between a Hermetic and a semi Hermetic compressor

Answer 12

A hermetic compressor is a sealed compressor which can not be disassembled. While a semi hermetic compressor or serviceable compressor can be partially disassembled for repair

Question 13

Dual purpose systems

Answer 13

A system used for both heating and cooling

Question 14

What is ventilation

Answer 14

Is the introduction of fresh air into a close space in order to control air quality

Question 15

What is a bond

Answer 15

Short for surety bond it is a funded guarantee that a contractor will preform as agreed

Question 16

What is Carbon Monoxide (CO)

Answer 16

A common byproduct of combustion processes, CO is a colorless tasteless and orderless gas that is lighter than air and quite toxic CO reacts with blood hemoglobin to form a substance that significantly reduces the flow of oxygen to all the parts of the body.

Question 17

What is Chlorofluorocarbon CFC Refrigerant

Answer 17

A class off refrigerants that contains chlorine, fluorine and carbon CFC refrigerant have a adverse effect on the environment

Question 18

What is Easement

Answer 18

A portion of a property set aside for public utilities or municipalities

Question 19

What is Hydrochlorofluorocarbon (HCFC) refrigerant

Answer 19

A class of refrigerant that contains hydrogen, chlorine, fluorine, and carbon

Question 20

What is the International Building Code (IBC)

Answer 20

A series of model construction codes. These codes set standards that apply across the country. This is an ongoing process led by the International code Council (ICC)

Question 21

What is reclaimed

Answer 21

used refrigerant that has been remanufactured to bring up to the standards required of new refrigerant.

Question 22

What is recovery

Answer 22

The removal of and temporary storage of refrigerant in containers approved for that purpose

Question 23

What is Recycling

Answer 23

Circulation recovered refrigerant through filtering that remove moisture acid, and other contaminants

Question 24

What is sustainable Construction

Answer 24

Construction that involves minimum impact on the land,natural resources, raw materials, and energy over the buildings life cycle it uses material in a way that preservers natural resources and minimizes pollution