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219 Cards in this Set
- Front
- Back
- 3rd side (hint)
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Drainage size used for laundry hose |
1” ID rubber hose |
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What special valves and special vents are used for Coin Laundries? |
Dump Valves/Vapour Vents |
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3 types of roof drain type |
1)Normal 2)Deep Sump 3)Flow Control |
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2 types of seating used for Inline Automatic Trap Primer and install location? |
Disc and Piston Install 10” above trap |
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Blended water controls are called? (2) |
Mixing Valves Tempering Valves |
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Blended water controls can maintain temperature to within? |
3F to 5F |
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Rainwater drainage minimum and maximum allowable offset for expansion |
5ft min. for horizontal and 5ft max. for vertical |
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4 Parts for Urinal Flush Tank |
1) Isolation Valve 2) Fill Valve 3) Siphon 4) Discharge |
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Rule for rainwater leader offset without change in size |
Must offset immediately below roof, horizontal can be 6Meter max and must be no less than 1/4” per foot |
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3 parts for Automatic Timed Trap Primer |
1)Vacuum Breaker 2)Solenoid Valve 3)Timer |
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Blended water control are called? (2) |
1) Mixing Valves 2) Tempering Valves |
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Urinal Flush Tank Valve Type and Supply to Tank pipe size? |
Chrome Plated Angle Globe 3/8” Supply |
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Tempered Water Controls are called? (2) |
1) Temperature Sensing Valves 2) Temperature Balanced Valves |
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2 types of pressure balancing valves |
1) Cartridge 2) Diaphragm |
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3 types of Tempered Water Controls |
1)Parrafin Cartridge (Best) 2)Volatile Liquid filled Bellows 3)Bimetal Coil (Slowest reaction) |
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Inline Automatic Trap Primer delivers spurt of water when: |
Faucet Opens and Closes |
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Maximum temp. of water discharged from sterilizer without cooling |
170F |
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Temperature-sensing valve deliver water at max temp of |
120°F |
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Supply piping to Mixing Valves should be fitted with (2) |
Strainers and Thermometers |
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How must Sterilizers be connected to drainage and how to prevent Backflow |
Indirectly connected to drainage through Air Break to prevent backflow |
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Blended water is maintained to what temperature |
3°F to 5°F |
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What are 2 types of Water Distribution? |
1)Gravity 2)Forced |
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Friction Loss is also called |
Head Loss |
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What are 2 types of Water Distribution? |
1)Gravity 2)Forced |
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Friction Loss is also called |
Head Loss |
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Why is dependable flow and adequate pressure important in a building nowadays? (4) |
1)Less chance of siphon 2)More Flush Valves 3)Public uses More Water 4)Equipment needs Constant Flow |
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What are components for Gravity Tank Systems |
1)Ball Float Valves 2)Actuating Switch 3)Galvanized/Copper Pipe connecting old Lead piping |
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What is Advantage/Disadvantage of Gravity Tank System? |
Adv: Building can have Water during Street Main repairs Dis: Periodic Cleaning |
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4 types of Mechanical Backflow |
1)Atmospheric Vacuum Breaker 2)Pressure Vacuum Breaker 3)DCVA Double Check Backflow Assembly 4)RP Reduced Pressure Principle Backflow Preventer |
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5 types for Booster Pump Systems |
1)Upfeed 2)Downfeed 3)Downfeed PRV 4)Combination Upfeed/ Downfeed PRV 4)Combination Up Main Pressure + Booster with Hot Reducing PRV |
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2 types of Air Chambers |
1)Manufactured with Top Air Valve+Stop and Waste Valve 2)Diaphragm Type |
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3 Basic Factors in determining circulation for Hot Water Re-Circulation |
1)Heat Loss of Piping 2)Temperature Differential at Operation 3)Allowable Friction Head |
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What kind of Meters used in warm application |
Split Case Meters (Brass) |
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Meter for 2”+ Consumer Billing |
Compound Meter Turbine+Positive Displacement |
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During removal of Water Meter, what is the method of protection? (3) |
1)Cap 2)Meter Idler 3)Grounding Strap |
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When using 2 different sized Meters, what is required to control the flow between the Meters |
Flow Control Valve |
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What is used to avoid Recirculation or Low flow in Manifold |
Check Valve |
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What is clearance of Large Meters inside a Vault |
20” to Wall 24” Head space |
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5 Factors for selecting Floor Drains |
1)Volume of Liquid 2)Type of Waste 3)Type of Traffic 4)Accessories 5)Appearance |
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What would happen if Rainwater Leader connected to Septic Tank? |
Tank would flood and system become inoperative |
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What are 4 variables being controlled by a device? |
1) Temperature 2)Pressure 3)Humidity 4)Flow |
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On-Off controller use a _______ to energize ______ |
On-Off controllers use a switch to activate an actuator |
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Safety limit switches maybe _____ reset or _____ reset |
Automatic Manual |
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What are 3 examples of coils |
1)Solenoids 2)Relay Coils 3)Electric Motors |
Electrical energy to Mechanical energy |
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Electrical Power Source is a device that ____ and _____ an electrical imbalance. |
Stores and Generates |
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Bbq ignition for gas bbq is an example of what electric generator? |
Piezoelectric |
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What can create high voltage ignition spark and is an example of Static electricity? |
Capacitators |
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Thermoelectric devices generate DC or AC electricity? |
DC Direct Current |
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Thermoelectric devices generate small or large amounts of current? How is it measured? |
Small Millivolts |
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Thermoelectric devices are restricted to low output applications such as |
Hold in only safety circuits on continuous pilot ignition systems |
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Thermopiles generate what kind of voltage and what are it’s functions |
1Volt Hold a safety device in operating position and operate Pull-in circuit on Automatic Gas Valve |
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2 main categories for Thermally operated controls are: |
1) Solid expansion 2) Fluid Expansion |
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2 examples of solid expansion are: |
1) Bimetal 2) Rod and Tube |
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What are 2 main parts(elements) are in Rod and Tube Thermostats? |
1)Sensing Element (Rod and Tube) 2 Operating Element ( Snap Acting ON/OFF) |
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Threaded Valve spindle for rod and tube thermostat allows for: |
Calibration/Recalibration |
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Conversion for Combined Sewer Rainwater and Continuous for roof drain sizing |
260FU or less = 2360 L/sec 260FU + = 9.1 L/FU/sec Continuous 900 L/sec |
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2 types of Bypass for Water Meter install |
1) Offset 2) Loop |
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2 types of insulation for pipe |
1) Fibreglass 2) Flex Rubber |
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2 types of Elements for Electric Hot Water Tank |
1) Immersion 2) Strap On |
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What type of lining can’t be used for Electric Hot Water Tank |
Stone Lined |
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2 types of Gas Hot Water Heating |
1) Direct Fired Storage 2) Instantaneous |
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Component in Hot Water Tank that promotes greater Heat Transfer |
Helix type Baffle |
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Instantaneous Hot Water Heater is also called |
Tankless Water Heater |
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What type of valve is used in small Instantaneous Hot Water Heater by what action |
Diaphragm flow Valve by Siphoning |
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Large Commercial Hot Water Tanks constructed with |
Heavy Gauge Steel Uncoated/Galvanized/Portland Cement/Glass Lined |
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Components of Gas Hot Water Heater |
Bunsen Burner Orifice Venturi Primary Inlet Atmospheric Burner Head Thermostatic Valves Safety Pilots |
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Type of Thermostatic Sensing Element |
Rod and Tube Design |
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Type of Thermostatic Sensing Element |
Rod and Tube Design |
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T+P Valve is a type of what action |
Thermal Expansion Type |
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What is required if Cold Supply is located at top of Hot Water Tank? |
Anti-Siphon |
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What is required if Cold Supply is located at top of Hot Water Tank? |
Anti-Siphon Hole |
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Hot Water Tank is supplied with Magnesium Anode Rod. Tank and Water is Cathode or Electrolyte? |
Tank is Cathode Water is Electrolyte |
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T+P is set to what pressure setting? |
20 lbs higher than line pressure |
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T+P is set to what pressure setting? |
20 lbs higher than line pressure |
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2 types of Temperature Relief Valves |
1) Fusible Plug Metal type 2) Bellows Bi-Metal (opens 210F /Closes 169F |
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T+P is set to what pressure setting? |
20 lbs higher than line pressure |
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2 types of Temperature Relief Valves |
1) Fusible Plug Metal type 2) Bellows Bi-Metal (opens 210F /Closes 160F |
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All T+P Device are rated/sized by |
BTU Capacity |
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Advantages and Disadvantages of Instantaneous Hot Water Heating |
Adv: -Constant Heat -No Heat Loss during Idle Dis: -Large Inputs of Water -Mineral Precipitation build up which requires frequent maintenance
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Advantages and Disadvantages of Instantaneous Hot Water Heating |
Adv: -Constant Heat -No Heat Loss during Idle Dis: -Large Inputs of Water -Mineral Precipitation build up which requires frequent maintenance
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Electric Immersion Heaters requires what special set up |
-Lower setting for Immersion for better circulation for immediate needs |
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Advantages and Disadvantages of Instantaneous Hot Water Heating |
Adv: -Constant Heat -No Heat Loss during Idle Dis: -Large Inputs of Water -Mineral Precipitation build up which requires frequent maintenance
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Electric Immersion Heaters requires what special set up |
Lower setting for Immersion for better circulation for immediate needs |
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Factors for installing Hot Water Heaters |
1) Volume for peak demand 2) Required Space 3) Structural (Existing Chimney?) 4) Recirc required or not |
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Large application for top of building HWT install require what safety device? |
Vacuum Relief Valve |
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What is temperature for supply/return risers on a forced circulation system? |
140°F Supply 104°F Return |
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What must be installed on residential gravity system to prevent short circuiting? |
Check Valve with 1/16 hole to prevent T+P from opening |
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What must be installed on residential gravity system to prevent short circuiting? |
Check Valve with 1/16 hole to prevent T+P from opening |
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What valves or methods are necessary to balance risers? |
1)SUPPLY - Shut Off Valves 2)RETURN - Globe Balance Valve 3)RETURN leg NOT Insulate |
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PRV use what for sensing pressure? |
Diaphragm |
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What device is used to protect PRV (Pressure Reducing Valve) |
Strainer Upstream Integral Strainer |
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Which type of valves are installed with Pressure Reducing Valve and Bypass? |
SHUT OFF -Full Port Gate/Ball Valve BYPASS -Globe Valve |
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What safety device is used for high pressure application domestic water supply? |
Pressure Relief Valve downstream |
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What is NO FLOW PRESSURE |
Pressure maintained in the system by a reducing valve when no water is flowing |
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What is REDUCED PRESSURE FALL-OFF? |
Change in reduced-flow pressure below no-flow pressure required to open the valve |
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What is REDUCED FLOW PRESSURE? |
Pressure maintained by PRV when water is flowing |
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What is REDUCED FLOW PRESSURE? |
Pressure maintained by PRV when water is flowing |
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Series PRV install called: |
2 stage reduction Multi-stage reduction |
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What is REDUCED FLOW PRESSURE? |
Pressure maintained by PRV when water is flowing |
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Series PRV install called: |
2 stage reduction Multi-stage reduction |
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Parallel PRV install for? |
1 Large common supply main |
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Series Installation of Pressure-Reducing Valves for what application |
1) Dishwasher 2) Drinking Fountain 3) Downfeed |
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What device allows pump to run on demand when building pressure falls below set minimum? |
Pressure Switch |
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What safety device is installed for a constantly running pump on the bypass? |
Pressure Relief Valve |
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Material used to make Residential/Commercial faucets |
Yellow Brass |
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4 styles of Faucet gaskets |
1) Washer 2) Washerless 3) Ball 4) Cartridge |
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How does single handed shower faucets limit temperature fluctuations? |
Balance mechanisms |
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How are brass seats manufactured for corrosion resistance |
Chrome Plated |
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How is hot and Cold water blended in Metering Valves |
By a Mixing Valve and spring operated cartridge |
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What faucet uses washer style and name of washer? |
2 handled faucet Bibb Washer |
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Electric Faucets use what type of valves and how is it powered? |
Solenoid Valve 24V Battery |
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Washerless style for what type of faucet and type of seal? |
2 handles faucet Cartridge Spring loaded seats O-rings/Ceramic disc |
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Ball style faucet components? |
Seat rings Gasket held against Ball |
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Cartridge style faucet |
Single and 2 handled O-Ring/Ceramic disc |
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What is the washer that holds 2 handled faucet to countertop? |
Crowsfoot |
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Shower faucet components |
Balance Spool Pressure balance Cartridge |
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Shower faucet components |
Balance Spool Pressure balance Cartridge |
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Type of seal for older style faucet? Troubleshoot for leaks? |
Stem Packing Tighten Bonnet Nut |
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Governing body for Flow Restrictor devices? |
EPA Environment Protection Agency |
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Tool for dressing small brass seats? |
Flat Mill FILE |
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3 types of flush valves? |
Piston Diaphragm Metering |
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New type flush valve with infrared sensor? |
Electronic Flush Valve Electronic Operated Solenoid Valve |
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New type flush valve with infrared sensor? |
Electronic Flush Valve Electronic Operated Solenoid Valve |
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Minimum pressure to operate flush valve? |
15psi |
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Component for metering flush valves? |
Cartridge |
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Flush Valve Supply sizing |
Metering 1/2” Diaphragm/Piston 3/4” |
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WC flush valve min. supply sizing and Volume of flush |
1” supply 6L (1.6gal) per flush |
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Regular jet tub number of jets |
4-12jets |
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6’ tub pressurized air jet number of jets |
80jets |
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2 types of bidets |
Submerged Inlet Over-the-rim Supply |
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3 types of drinking fountains |
Exposed Semi-recessed Fully recessed |
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3 types of Urinals |
Stall Wall hung Women’s urinal (long ass time ago) |
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Wall hung Urinal types of trap |
Integral Exposed |
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Cartridge for Faucet function. Washerless means gasket or not |
-Cartridge opening aligns with stem assembly to allow flow -O-rings around cartridge |
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Kitchen faucet cartridge troubleshoot |
Lube O-ring with good grade lube or Replace |
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What material is cartridges made of |
Stainless Steel Plastic Nylon Ceramic Teflon |
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Important Pump placement rules |
Properly aligned No noise/vibration Isolation pads Spring isolators |
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What is New type of flush valve with electronic sensors? |
Electronic Flush Valve Electronic Operated Solenoid Valve |
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Parts of Piston/Diaphragm flush valves |
2 chambers Relief Valve |
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How to identify flush valve Pistons and Diaphragm relief valve/relief heads? |
Colour coded |
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Jet tub Pump size and adjustment controls |
1/2HP-1 1/2HP Full Aeration Control |
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How does Air Tub prevent cooling of air through the tubes and water to enter pipes? |
Electric Heater Small diameter pipes |
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Submerged Inlet Bidet functions |
Warm Seat Spray Jet Nozzle |
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Drinking Fountain water temp and how it’s cooled |
10°C Water Cooler (Refridgeration) |
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Drinking Fountain water temp and how it’s cooled |
10°C Water Cooler (Refridgeration) |
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Drinking Fountain components |
Automatic Stream Regulator Angle Stream Bubbler Bubbler Guard Shut Off (Self Closing Button) |
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Drinking Fountain water temp and how it’s cooled |
10°C Water Cooler (Refridgeration) |
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Drinking Fountain components |
Automatic Stream Regulator Angle Stream Bubbler Bubbler Guard Shut Off (Self Closing Button) |
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How are Gang Showers timed |
Metering Electronically |
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Drinking Fountain water temp and how it’s cooled |
10°C Water Cooler (Refridgeration) |
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Drinking Fountain components |
Automatic Stream Regulator Angle Stream Bubbler Bubbler Guard Shut Off (Self Closing Button) |
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How are Gang Showers timed |
Metering Electronically |
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Urinal Flush Valve component New vs Old |
NEW - Synthetic Rubber Cups OLD - Leather Diaphragms |
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Direct Flush Valve(Diaphragm/Piston) and Metering sizing for Urinals |
3/4” Diaphragm/Piston 1/2” Metering |
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Electronic Flush Valves types old and new |
Diaphragm Valves with Electronic Actuators Solenoid Valves with Microprocessors |
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Popular choice of Jet Tub material |
Fibreglass with Acrylic Face |
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Construction materials for Gang Showers (2) |
Stainless Steel Chrome Plated Brass |
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Construction materials for Gang Showers (2) |
Stainless Steel Chrome Plated Brass |
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Commercial Sink standing waste called |
Standing Overflow By Transit Waste |
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Construction materials for Gang Showers (2) |
Stainless Steel Chrome Plated Brass |
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Commercial Sink standing waste called |
Standing Overflow By Transit Waste |
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Stall Urinal Drain size |
2” |
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What is 1st step in installing Flush Valve Urinals/WC |
Install screwdriver stops |
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Define BACKFLOW |
Unwanted flow Non-Potable to Potable |
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Define BACK SIPHONAGE |
Reversal of normal direction of flow by Negative Pressure (Vacuum) |
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Define BACKPRESSURE |
Reversal of flow High to Low due to pressure lost from High Pressure Main or pressure generated by pumps/boilers |
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Define BACKPRESSURE |
Reversal of flow High to Low due to pressure lost from High Pressure Main or pressure generated by pumps/boilers |
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Backpressure can occur in systems that are Positive or Negative pressures? |
Both |
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Backflow Device Tester requirements |
Min 30Hr 75% for Pass(PVB/DCVA/RP) Every 5years |
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Responsibility of Potable Water |
Water Purveyor/Sanitation Department |
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Responsibility of Potable Water |
Water Purveyor Sanitation Department |
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Responsibility of Health of Potable Water |
Health Department |
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Responsibility of Cross Connection |
Chief Plumbing Inspector |
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Responsibility of building backflow device and protecting potable water |
Owner of building |
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2 Jurisdictions for Cross Connection Control |
Waterworks Mechanical Inspection Agencies |
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2 Jurisdictions for Cross Connection Control |
Waterworks Mechanical Inspection Agencies |
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How often should you test Backflow Devices |
Once a year |
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Anti Siphon Breaker characteristics |
Prevent Vacuum Continuous Pressure allowed |
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Anti Siphon Breaker characteristics |
Prevent Vacuum Continuous Pressure allowed |
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Components of Atmospheric Vacuum Breaker |
Shut off Valve/Disc Float Assembly/ Check Seat/Air Inlet Port |
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Components of Atmospheric Vacuum Breaker |
Shut off Valve/Disc Float Assembly/ Check Seat/Air Inlet Port |
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Double Check Valve Assembly components |
2 Internally force loaded Approved Check Valve Spring Weights 2 Resilient closing shut off Test plugs |
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Components of Atmospheric Vacuum Breaker |
Shut off Valve/Disc Float Assembly/ Check Seat/Air Inlet Port |
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Double Check Valve Assembly components |
2 Internally force loaded Approved Check Valve Spring Weights 2 Resilient closing shut off Test plugs |
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Reduced Pressure Principle Backflow Preventer components |
2 Independent Force loaded Approved Checks Separately by Independently Operating Hydraulic Differential Relief Valve Test Cocks |
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Components of Atmospheric Vacuum Breaker |
Shut off Valve/Disc Float Assembly/ Check Seat/Air Inlet Port |
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Double Check Valve Assembly components |
2 Internally force loaded Approved Check Valve Spring Weights 2 Resilient closing shut off Test plugs |
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Reduced Pressure Principle Backflow Preventer components |
2 Independent Force loaded Approved Checks Separately by Independently Operating Hydraulic Differential Relief Valve Test Cocks |
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How does RP maintain pressure between both checks? |
In case of either checks leak, the Pressure Differential Relief Valve Discharges 2 psi lower than supply thru Vent Port to maintain pressure between the checks |
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What is an example of a non-approved backflow device? |
Detector Check (non approved) backflow preventer Single soft check |
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What is an example of a non-approved backflow device? |
Detector Check (non approved) backflow preventer Single Internally loaded soft seated main line check valve and bypass with check valve and water meter Single soft check |
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What is example of approved detector back flow |
Detector Double Check Valve Assembly Main Line DCVA and Bypass with Water Meter and DCVA |
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Components of DCAP |
Double Check Atmospheric Port 2 internally loaded checks+Intermediate Vent Non Testable for water tightness |
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Components of DCAP |
Double Check Atmospheric Port 2 internally loaded checks+Intermediate Vent Non Testable for water tightness |
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Components of Dual Check Valve |
DuC 2 Independent soft seat checks Internally loaded to Normally Closed Minor (Non Testable) |
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Hose Bibb Vacuum Breaker components |
Force Loaded Check biased to Normally Closed Atmospheric Vent force loaded to Normally Open |
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Hose Bibb Vacuum Breaker components |
Force Loaded Check biased to Normally Closed Atmospheric Vent force loaded to Normally Open |
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Lavatory Faucet Vacuum Breaker component |
2 Independent Check Valve biased to Closed Auto Venting biased to Open |
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What’s in Dry Sprinkler System Piping |
Air/Nitrogen |
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What’s in Dry Sprinkler System Piping |
Air/Nitrogen |
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What’s in WET Sprinkler System Piping and form of protection from contamination |
Water/ Antifreeze + RP |
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How are Communicable Diseased carried |
By Feces and Urine |
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How is Air Conditioning corrosion prevented? |
By adding Chromate allowable to 0.05ppm |
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4 Cross Contamination Classification? |
Communicable Chemical Physical Aesthetic |
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4 Cross Contamination Classification? |
Communicable Chemical Physical Aesthetic |
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Examples of Communicable Diseases |
Amoebiasis/ Cholera/ Infectious Hepatitis/ Poliomyelitis/ Salmonellosis/ Shigellosis(bacillary dysentery) Paratyphoid/ Typhoid Fever |
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Who gives final judgement for approved water supply |
Department of Health |
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In the event of accidental pollution or contamination of public/consumer’s potable water due to backflow from consumer’s premises, who should you notify? |
Water Purveyor Health Department Chief Plumbing Inspector |
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For Barometric Loop, Shut off Valve is installed upstream or downstream of Atmospheric Vacuum Breaker? |
Upstream only |
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RP important install recommendation |
No freeze/Max 110°F No pit/Air Gap for PRV discharge Strainer but Not for Fire Protection Thermal Water Expansion/ Water Hammer cause Damage |
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DCVA Install Recommendation |
3’ min clearance for testing with sight tube Ambient Strainer but not for Fire Line Thermal Expansion/water Hammer cause Damage |
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Pressure Vacuum Breaker install recommendation |
12” above FLR/ Ambient/ Vertical Not in fume areas |
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Pressure Vacuum Breaker install recommendation |
12” above FLR/ Ambient/ Vertical Not in fume areas |
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Atmospheric Vacuum Breaker install recommendation |
Max 12hr continuous flow Min 6” above FLR Vertical/Ambient No fume areas |
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Atmospheric Vacuum breaker is to protect contamination by |
Back Siphonage |
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Atmospheric Vacuum breaker is to protect from contamination by |
Back Siphonage |
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RP and DCVA for what kind of protection? |
Backflow / Backsiphonage |
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Atmospheric Vacuum Breaker critical level for WC and other |
6” other than WC 1” WC |
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Open Vat or water supply includes float operated inlet shall be protected by |
Air Gap Back SIPHONAGE protector |
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