Podcast
Questions and Answers
Which joint type uses a flaring tool during the connection process?
Which joint type uses a flaring tool during the connection process?
- Rubber Ring Joint
- Solder Fusion
- Hubless Joint Coupling
- Flared Joint (correct)
What is a characteristic of a flange union?
What is a characteristic of a flange union?
- Alternative to welded and screwed systems (correct)
- Uses a single pipe end piece
- Requires soldering for installation
- Uses rubber rings for sealing
Which valve type is typically used to prevent backflow in plumbing systems?
Which valve type is typically used to prevent backflow in plumbing systems?
- Compression Valve
- Butterfly Valve
- Check Valve (correct)
- Angle Valve
What does a metered valve usually control?
What does a metered valve usually control?
Which type of cock operates with a rising stem design?
Which type of cock operates with a rising stem design?
What differentiates a double nipple from a single nipple in plumbing fittings?
What differentiates a double nipple from a single nipple in plumbing fittings?
Which fitting type allows for angular adjustments in piping layouts?
Which fitting type allows for angular adjustments in piping layouts?
What is the common feature of a globe valve?
What is the common feature of a globe valve?
What is the primary purpose of chlorination in water purification?
What is the primary purpose of chlorination in water purification?
Which water purification method involves the use of coagulants?
Which water purification method involves the use of coagulants?
What is the purpose of filtration in water purification?
What is the purpose of filtration in water purification?
In which type of pump is water drawn in only with one motion?
In which type of pump is water drawn in only with one motion?
What does sedimentation primarily involve in the context of water purification?
What does sedimentation primarily involve in the context of water purification?
Which method of water purification uses a special filter membrane?
Which method of water purification uses a special filter membrane?
What is the recommended distance a well should be from pollution sources?
What is the recommended distance a well should be from pollution sources?
Which of the following describes the process of flocculation?
Which of the following describes the process of flocculation?
What is the primary function of UV radiation in water treatment?
What is the primary function of UV radiation in water treatment?
What distinguishes a Two Stage Pump from a Single Stage Pump?
What distinguishes a Two Stage Pump from a Single Stage Pump?
What type of well construction method is most vulnerable to surface pollution?
What type of well construction method is most vulnerable to surface pollution?
Which pump type is best suited for handling viscous fluids?
Which pump type is best suited for handling viscous fluids?
What is a characteristic of a Submersible Pump?
What is a characteristic of a Submersible Pump?
Which well construction method uses a well auger and casing?
Which well construction method uses a well auger and casing?
Which type of pump is specifically designed to discharge water from a well?
Which type of pump is specifically designed to discharge water from a well?
What is the primary advantage of a Multi Stage Pump?
What is the primary advantage of a Multi Stage Pump?
Which statement best describes a Driven Well?
Which statement best describes a Driven Well?
What role does the Neutralizing Tank play in water treatment?
What role does the Neutralizing Tank play in water treatment?
What is the primary purpose of a central chilled water system?
What is the primary purpose of a central chilled water system?
Which of the following best describes the function of an air handling unit (AHU)?
Which of the following best describes the function of an air handling unit (AHU)?
In a split air conditioning system, what do the small diameter and large diameter pipes represent?
In a split air conditioning system, what do the small diameter and large diameter pipes represent?
Which component is responsible for producing chilled water in a central chilled water system?
Which component is responsible for producing chilled water in a central chilled water system?
What type of damper is typically set during the initial startup of an air distribution system?
What type of damper is typically set during the initial startup of an air distribution system?
Which type of air distribution system maintains a constant airflow while varying the temperature?
Which type of air distribution system maintains a constant airflow while varying the temperature?
What is the primary function of cooling towers in a central chilled water system?
What is the primary function of cooling towers in a central chilled water system?
What type of filter is designed to remove high-efficiency particulate matter from the air?
What type of filter is designed to remove high-efficiency particulate matter from the air?
What component in the air distribution system allows for the control of airflow volume?
What component in the air distribution system allows for the control of airflow volume?
Which type of duct is suitable for conveying air in a cooling or heating application?
Which type of duct is suitable for conveying air in a cooling or heating application?
What is the role of a variable frequency drive in HVAC systems?
What is the role of a variable frequency drive in HVAC systems?
Which of the following components is NOT typically part of a split air conditioning system?
Which of the following components is NOT typically part of a split air conditioning system?
What type of air outlet is commonly used to distribute conditioned air into a room?
What type of air outlet is commonly used to distribute conditioned air into a room?
What is the primary purpose of a regulator in a gas system?
What is the primary purpose of a regulator in a gas system?
Which precaution is necessary when installing a gas cylinder?
Which precaution is necessary when installing a gas cylinder?
What should not be used to check for gas leakage?
What should not be used to check for gas leakage?
What type of test is performed to check for leaks in a water system?
What type of test is performed to check for leaks in a water system?
Why should piping not be run in areas like elevator shafts or chimneys?
Why should piping not be run in areas like elevator shafts or chimneys?
What is a critical requirement for gas piping installations?
What is a critical requirement for gas piping installations?
How should a pigtail be oriented during installation?
How should a pigtail be oriented during installation?
What should be done with defective pipes and fittings in a gas system?
What should be done with defective pipes and fittings in a gas system?
What is an essential feature for appliances connected to gas lines?
What is an essential feature for appliances connected to gas lines?
What is a safe method to ensure a gas system is gas tight?
What is a safe method to ensure a gas system is gas tight?
Study Notes
Air Conditioning Systems
- Packaged Terminal - Self-contained units with internal compressor, condenser, and evaporator
- Split System - Separated into a condenser unit and a fan coil unit connected by two copper pipes: Liquid Line (small diameter) and Gas Line (large diameter)
- Condenser unit (Outdoor) - Compressor, Condensing Coil, Expansion Valve
- Fan Coil unit (Indoor) - Evaporator
- Multi-Split - Central condenser unit connected to multiple fan coil units
Central Chilled Water Systems
- Cool water is produced centrally and used by air handling units (AHUs) and fan coil units (FCUs) to cool air
- Air handling unit (AHU) - Conditions and circulates air
- Cooling tower - Removes heat from chilled water
- Common Components:
- Chiller - Produces chilled water for removing heat from the building
- Located indoors if a cooling tower is part of the system, outdoors if not
- Ducting
- Chiller - Produces chilled water for removing heat from the building
- Other Components
- Pre-cooled AHU
- Fresh Air Handling Unit
- Energy Recovery Ventilation
- Pumps and Controls
Cool Thermal Storage
- Chilled water is produced and stored or a phase change in water is generated to store ice during low cooling demand periods.
- The stored energy is used during peak periods.
Air Distribution Systems
- Constant Air Volume (CAV) - Steady airflow and varying temperature
- Variable Air Volume (VAV) - Varying airflow and constant temperature
Distribution Components
- Duct
- Section - Round, Oval, Rectangular
- Materials:
- Rigid Aluminum (gauge 23-26)
- Rigid Steel (gauge 26-30)
- Rigid uPVC, PP, or ABS
- Fiberglass Composite
- Fabric duct (polyester)
- Flexible Duct
- Designation - Supply, Return, Exhaust, Fresh, Pressurized, Mixed
- Installation - Fiberglass, Polystyrene, Polyethelene
- Dampers:
- Type:
- Manual Damper - Set during initial startup of the system
- Automatic Damper - Responds to temperature or pressure changes, or can be remotely controlled
- Backdraft Dampers
- Smoke Dampers
- Fire Dampers
- Combination Smoke and Fire Dampers
- Type:
- Fans:
- Types
- Axial - Discharges air in the same direction
- Propeller - Moves large volume of air against low static pressure
- Vaned axial - Most common due to minimal change in airflow
- Tube axial - Propelled encased in a duct
- Centrifugal - Air makes a 90° turn from inlet to outlet
- Axial - Discharges air in the same direction
- Types
- Motors:
- Electric motors known as drives
- Common names:
- Variable Frequency Drive
- Variable Frequency Inverter
- Variable State Drive
Control Components
- Volume Control:
- *Type:
- Single Blade
- Multi-Blade - Can be opposed or parallel
- *Type:
- Damper
- Sensing Equipment:
- Humidistat
- Thermostat
- Pressure Regulator
- Actuating Equipment:
- Damper
- Control Valves
- Relays
Air Cleaning Components
- Dry Filter
- Viscous Filter
- Water Spray
- Eliminator Plates
- Mechanical Filter
- Panel (Flat) Filter
- High-efficiency Particulate Arresting Filter
- Sound-attenuating Filter
Cooling and Heating Components
- Cooling:
- Water Sprays
- Cooling Coils
- Heating:
- Tempering Coils - Contain steam for heating air
- Water Heaters - Heated water is used in a spray chamber to add heat and humidity to the air
- Media:
- Gasoline
- Grease
- Tar
- Oil and Water (for hydraulic systems)
- Acid
- Ammonia
- High Pressure Air
- High Pressure Steam
- Low Pressure Steam
- Boiler Feed Water
- Hot Water
- High Pressure Water (excluding boiler feed)
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Description
This quiz covers the different types of air conditioning systems, including Packaged Terminal, Split, and Multi-Split systems, as well as Central Chilled Water Systems. You will learn about their components, such as condensers, evaporators, and air handling units. Test your knowledge on the functionalities and setups of these essential climate control technologies.