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66 Cards in this Set
- Front
- Back
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Number of 1-inch diameter 7 1/2 foot hoses are supplied for the hose assembly |
5 |
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Mix valve provides heated water to the shower heads at what temp |
105 degree fucktard |
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Sodium hexamethphosate prevents what in ROWPU |
scaling |
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Type 2 space heater can operate on 5 gallons for how many hours |
10 to 30 |
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Locate water pump how many feet from a water source |
20 |
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Trenches are supported when deeper than ? |
5 ft |
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Hydrants are located how many feet from a building? |
50 |
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Drinking fountain orifice should be at least what distance from the floor |
30 in |
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Quarterly test for alarm check valves |
2inch drain test |
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Pressure drop deflectors is adjusted how many psi above supply pressure |
20 to 50 |
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Water clapper designed to trip at 10 to 15 psi, should have what minimum air pressure |
30 psi |
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Minimum distance beneath a sprinkler |
18 inches |
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Transfer of mechanical power from a prime power is accomplished through what |
Drive mechanism |
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Most effective and expensive air cleaning method |
Electrical |
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Amount of refrigerant that may be placed in a cylinder |
85% of tare weight |
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Evaporator using refrigerant as secondary medium is called |
Indirect expanding |
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Heat equal to number of btu required to raise 1 pound of any substance |
Specific |
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When areas are close to each other, use what type of AC system |
Forced air |
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Most common metering device |
AEX |
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AC system for hospital use |
Hot and chilled water |
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Distance of kitchen sink from floor to rim top |
35 inches |
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The injector feed system uses an injector that serves what two purposes |
Boiler feeder and standby feeder |
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Header in cross drum boiler are made of what |
Forged steel |
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Used in boiler to ensure enough air is available for proper combustion |
Draft fans |
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Interval to check boiler external air leaks |
Daily |
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Water must be below what temperature before draining |
200 F |
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Soak new gasket for how long before installing |
24 hours |
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A small amount of seawater in feedwater causes what |
Heavy sludge |
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Improper fabrication of tubes causes what |
Wall lamination |
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When testing steam distribution what needs to be closed |
Main steam valve |
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Tool used to tamp oakum into bell and spigot pipe |
Yarning iron |
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1/16 bend changes direction of how many degree |
22 1/2 |
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Lead wool joint should be packed with oakum within what distance to the top of the hub |
1 inch |
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Valves belowground are accessed through ? |
Valve box |
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Contact area of ground-in valve to cover seating surface |
One third |
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Hydrant in freezing temperature |
Dry |
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Ion exchange unit is cleaned and painted how often |
Annually |
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In-stock diaphragm are stored how? |
Underwater … whoa! |
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Check paddle rotation on flocculator basins how often |
Mothly |
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Disinfectant used in water treatment because of rapid deterioration and low available chlorine yield |
Chlorination lime |
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Waterborn disease that requires a carrier to infect people |
schistosomiasis |
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Solution used to detect chlorine leak |
Soapy solution |
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How many classification of wells are there |
5, five, 4 plus 1, 2 plus 3. 6 minus 1 |
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Range of dug wells |
20 to 40 |
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Final treatment used in residual disinfection |
Chlorination |
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A well can normally be bored within what max depth |
60 feet |
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Hot and cold water lines of the automatic washer operate by what means |
Solenoid |
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Temperature range of domestic dishwater |
138 to 145 F |
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Solvent to remove rust from domestic dishwater |
Sulfamic acid |
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HTHW ph range |
9 to 10 |
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Sensible heat plus latent heat |
Total heat … duh! |
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What trap permits condensation fliw and air from radiator |
Thermostatic |
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What is based on a volume of water that is under pressure flashing into steam when pressure is reduced |
Thermostatic impulse |
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Bimetallic trap works the same as what trap |
Thermostatic |
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Wastewater containing DO |
Aerobic |
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Test to decide whether to increase or decrease sludge return rate |
MLSS |
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A grab sample covers what time span |
15 min |
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Domestic sewage have what odor |
Musty |
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Amount of oxygen used by microorganisms |
Oxygen demand |
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Underground pipe corrosion is characterize by what deterioration |
Localized pitting |
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When load is considerably constant, what compressor is intended for near continuous air service |
Centrifugal |
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When testing air or nitrogen system, Use what max working pressure |
150 % |
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Testing air and nitrogen system for a minimum of how many hours |
4 hours |
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Micron range air compressor filters can remove particles |
1 to 3 |
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HP or HV ductwork has what static pressure range in inches of WC |
3 to 7 inches |
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A total of air changes required during heating season |
Three |
