Copper Fitting Soldering Preparation
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Questions and Answers

How do you prepare a copper fitting for soldering?

  • Heat the fitting without cleaning it.
  • Use a lubricant on the fitting.
  • Clean the inside of the fitting. (correct)
  • None of the above.

    • Grinder work in a plant is related to:

  • Grinding metal surfaces (correct)
  • Welding components
  • Cutting fabric
  • Polishing wood

    • What is required for the schedule of pipe when joining a threaded coupling to 2 pieces of 4” pipe?

  • Schedule 40 (correct)
  • Schedule 10
  • Schedule 80
  • Schedule 20

    • How do you cut pipe in a trench with limited space?

    <p>4-wheel cutters</p> Signup and view all the answers

    What is the field performance of a fire pump?

    <p>150% capacity at 65% head</p> Signup and view all the answers

    How often is a hydrostatic test required for an ABC extinguisher?

    <p>Every 12 years</p> Signup and view all the answers

    What is the shape of a Class B fire extinguisher?

    <p>Square</p> Signup and view all the answers

    What power tool is used for installing post-installed anchors?

    <p>Hammer drill</p> Signup and view all the answers

    If the air compressor is cycling on and off, what should you do?

    <p>Drain the compressor tank through the lowest cock</p> Signup and view all the answers

    What size pipe enters the cold space for an INSIDE enclosure?

    <p>30”</p> Signup and view all the answers

    What size is the fire boat connection?

    <p>6 inches</p> Signup and view all the answers

    What size is a Class 2 hose valve?

    <p>1-1/2 inches</p> Signup and view all the answers

    What is the required slope for a branch line in a freezer?

    <p>1/2” per 10 feet</p> Signup and view all the answers

    What happens if a dry system’s intermediate check valve is defective and you test the system through the alarm test?

    <p>It trips</p> Signup and view all the answers

    What do you do first when flowing a 2000 GPM fire pump?

    <p>Select nozzles</p> Signup and view all the answers

    How can you tell when your hard hat expires?

    <p>Stamp on hard hat</p> Signup and view all the answers

    How many bolts and nuts are required for the installation of a 6” OS&Y valve?

    <p>16 3/4&quot; nuts and 16 3/4&quot; bolts</p> Signup and view all the answers

    What is the maximum distance between pilot line detectors inside a cooling tower?

    <p>8 feet</p> Signup and view all the answers

    What is the spacing for pilot line detectors using fixed temperature sensors if they are 6” beside an I-beam that is 12” deep and 8” wide?

    <p>Max 8 feet</p> Signup and view all the answers

    How often should a sealed control valve be tested?

    <p>Weekly</p> Signup and view all the answers

    How often should control valves be inspected according to NFPA 13?

    <p>Monthly</p> Signup and view all the answers

    8-inch pipe flushing

    <p>46800</p> Signup and view all the answers

    What is the hydrostatic test requirement for underground pipes?

    <p>150 psi ± 5 psi</p> Signup and view all the answers

    3-screw ceiling flange with 1/2” lags?

    <p>6 inch</p> Signup and view all the answers

    What is the maximum distance between 4-way braces?

    <p>25</p> Signup and view all the answers

    What is the recommended hang spacing for CPVC pipes?

    <p>8 feet 6 inches</p> Signup and view all the answers

    How should a pilot tube be used in terms of distance?

    <p>1/2&quot; diameter away</p> Signup and view all the answers

    If a standpipe only serves a portion of the building, what is required?

    <p>Signage stating the portion it serves</p> Signup and view all the answers

    What size is the air hose line in a pressure tank?

    <p>1/2 inch</p> Signup and view all the answers

    How do you clean a pipe for end treatment?

    <p>Remove burrs and fins</p> Signup and view all the answers

    What do you do to prep grooved pipe for installation?

    <p>Grind burrs inside and outside from end of pipe</p> Signup and view all the answers

    How often should dry sprinkler systems be tested?

    <p>Every 10 years</p> Signup and view all the answers

    How often should standard sprinklers be tested?

    <p>Every 50 years + 10 years after</p> Signup and view all the answers

    What is the minimum pipe size for PVC entering a building?

    <p>2 inch</p> Signup and view all the answers

    Solder joints in exposed wet pipe systems are

    <p>Permitted to be installed in light hazard systems</p> Signup and view all the answers

    If multiple drains on floors (1-1/4", 1-1/2", 1-1/4", and 1-1/4") are tied into a common drain, what is the size of the main drain?

    <p>2&quot;</p> Signup and view all the answers

    Supervision is required for preaction systems when:

    <p>more than 20 heads</p> Signup and view all the answers

    Where is the QOD (Quick Opening Device) installed?

    <p>As close as possible to the valve</p> Signup and view all the answers

    A placard on a system riser will identify:

    <p>Manufacturer, type of antifreeze solution, and volume of antifreeze used</p> Signup and view all the answers

    Antifreeze with a backflow preventer requires:

    <p>expansion chamber</p> Signup and view all the answers

    Drains draining outside require:

    <p>4' of pipe to the exterior wall</p> Signup and view all the answers

    If an ordinary head is installed with 6′ of a mounted heater, how do you correct the installation?

    <p>Install high-temperature head</p> Signup and view all the answers

    What should you do if a sprinkler head is painted?

    <p>Remove and replace with listed sprinkler head</p> Signup and view all the answers

    What is the maximum distance between residential sprinkler heads?

    <p>8 feet</p> Signup and view all the answers

    An obstruction is 5'4" away from a side wall. How far above the obstruction can the sidewall be mounted?

    <p>2&quot;</p> Signup and view all the answers

    What is the coverage area of a CMSA sprinkler head in noncombustible construction?

    <p>130 sqft (12’ spacing)</p> Signup and view all the answers

    What is required for 25 rack sprinklers fed off an overhead system?

    <p>A listed control valve</p> Signup and view all the answers

    When replacing uprights with pendents, what is the maximum size nipple you can use?

    <p>4&quot;</p> Signup and view all the answers

    What is the maximum height for installing post indicator valves?

    <p>32-40”</p> Signup and view all the answers

    What size auxiliary drain is required on a wet system with a 3-gallon capacity?

    <p>1/2 inch</p> Signup and view all the answers

    What size auxiliary drain is required for a wet system with a 60-gallon capacity?

    <p>1 inch</p> Signup and view all the answers

    What is the maximum size of pipe where toggle hangers can be used?

    <p>1-1/2”</p> Signup and view all the answers

    What is the formula for underground leakage testing of a 660-foot, 6” pipe?

    <p>Leakage = 660 * 6” * square root of 200 psi / 148,000</p> Signup and view all the answers

    What is the acceptance test pressure for a water pressure tank with an operating pressure of 175 psi?

    <p>225 psi</p> Signup and view all the answers

    What kind of wrench do you use to install sprinkler heads?

    <p>Adjustable wrench</p> Signup and view all the answers

    What is the rating for a 6500 lb sling?

    <p>65,000 lbs</p> Signup and view all the answers

    What angle is required for a pipe end when welding?

    <p>30 degrees</p> Signup and view all the answers

    How often should a 1-1/2” hose valve be tested?

    <p>Every 3 years</p> Signup and view all the answers

    What is required for scaffolding when working outdoors?

    <p>Mud sills</p> Signup and view all the answers

    What should you do if you encounter a downed power line in your area?

    <p>Secure the area and notify the supervisor</p> Signup and view all the answers

    What is the maximum unsupported length for a 1" pipe?

    <p>36&quot;</p> Signup and view all the answers

    What is the maximum allowable time for an audible alarm to go off in a fire system?

    <p>5 minutes</p> Signup and view all the answers

    How much time is allowed for an audible alarm to go off for a marine system?

    <p>30 seconds</p> Signup and view all the answers

    Where is the hydraulic data plate typically located?

    <p>On the system riser</p> Signup and view all the answers

    When you are late to the site, who should you call first?

    <p>The general contractor (GC) or office</p> Signup and view all the answers

    What is the coverage area of the maximum sprinkler head?

    <p>400 sqft</p> Signup and view all the answers

    What size is the discharge pipe for a 2000-gallon fire pump?

    <p>10”</p> Signup and view all the answers

    How should a drum drip be operated properly?

    <p>Shut the upper valve, open the lower valve, then close the lower valve, and finally open the upper valve</p> Signup and view all the answers

    What is the best method to join CPVC pipe?

    <p>solvent cement</p> Signup and view all the answers

    What is the proper method of marking a hole on a pipe?

    <p>Use a center punch to mark</p> Signup and view all the answers

    Which NFPA standard is used for high foam systems?

    <p>NFPA 11</p> Signup and view all the answers

    What must be done prior to installing CO2 pipe?

    <p>Clean the inside of the pipe with solvent to remove oil and debris</p> Signup and view all the answers

    If a ball drip is leaking, what is the most likely cause?

    <p>Service check valve</p> Signup and view all the answers

    What is the issue if a dry system will not set?

    <p>The clapper is not seated</p> Signup and view all the answers

    What is the first step to take if a fire pump is malfunctioning?

    <p>Isolate the power</p> Signup and view all the answers

    How should acetylene bottles be stored?

    <p>Secured upright, with the valve off and regulator off</p> Signup and view all the answers

    How are deluge systems typically designed?

    <p>By using hydraulic calculations</p> Signup and view all the answers

    What is the required strength of a pad for a 5000 lb per square foot load?

    <p>5000 lbs</p> Signup and view all the answers

    When shall a Fire Department Connection (FDC) be omitted?

    <p>In buildings not exceeding 1800 sqft</p> Signup and view all the answers

    What is the minimum size drain for a 10" pipe?

    <p>2&quot;</p> Signup and view all the answers

    What is the required pressure for a hydrostatic test on a system with a working pressure of 175 psi?

    <p>225 psi</p> Signup and view all the answers

    How often should a preaction system be tested?

    <p>annually</p> Signup and view all the answers

    What is the maximum spacing for sprinklers in a light hazard occupancy with a ceiling height of less than 12 feet?

    <p>12 feet</p> Signup and view all the answers

    What should be done if a fire pump loses pressure during operation?

    <p>Check the discharge valve for obstruction</p> Signup and view all the answers

    What is the required distance from a ceiling-mounted sprinkler to an obstruction in a commercial building?

    <p>12 inches</p> Signup and view all the answers

    What type of pipe material is used for risers in a wet pipe sprinkler system?

    <p>Steel</p> Signup and view all the answers

    What is the correct method for testing an antifreeze solution in a sprinkler system?

    <p>Perform freeze point test</p> Signup and view all the answers

    What is the maximum allowable distance between sprinkler heads in a warehouse with non-combustible construction?

    <p>15 feet</p> Signup and view all the answers

    Which NFPA standard applies to the installation of fire pumps?

    <p>NFPA 20</p> Signup and view all the answers

    What is the minimum required pipe size for a standpipe system in a high-rise building?

    <p>4 inch</p> Signup and view all the answers

    When should a sprinkler head be replaced?

    <p>all the above</p> Signup and view all the answers

    What is the primary purpose of a check valve in a sprinkler system?

    <p>To prevent backflow</p> Signup and view all the answers

    What is the maximum spacing between fire department connections (FDC) on a large building?

    <p>100 feet</p> Signup and view all the answers

    How long must the standby power source for a fire pump be able to operate during a power outage?

    <p>1 hour</p> Signup and view all the answers

    Which type of pump is permitted to maintain system pressure?

    <p>jockey pump</p> Signup and view all the answers

    What is installed on the ground suction tank to prevent air from getting into the fire pump?

    <p>vortex plate</p> Signup and view all the answers

    What are the key aspects of supervision on a dry pipe system?

    <p>Low pressure and control valve temperature</p> Signup and view all the answers

    What type of system is a paddle type water alarm installed on?

    <p>Wet system</p> Signup and view all the answers

    What type of sprinkler requires testing after 10 years?

    <p>Dry pendants</p> Signup and view all the answers

    When should antifreeze be tested?

    <p>Annual</p> Signup and view all the answers

    When a sprinkler pipe travels through an unheated room, what is required?

    <p>Listed heat tracing that is supervised</p> Signup and view all the answers

    What should happen to control valves that are locked?

    <p>Inspected monthly</p> Signup and view all the answers

    What should be left in the sprinkler head box?

    <p>A sprinkler wrench for each head</p> Signup and view all the answers

    What is the maximum size for which labeling is not required?

    <p>2&quot;</p> Signup and view all the answers

    What extinguisher is used to protect against charged equipment?

    <p>Class C</p> Signup and view all the answers

    What size is the drain when multiple auxiliary drains tie in?

    <p>1&quot;</p> Signup and view all the answers

    What is the bend radius of a 6" copper fitting with a 40 degree angle of 180 degrees?

    <p>7'10-1/4&quot;</p> Signup and view all the answers

    What is the first step you should take when starting a job in a confined space?

    <p>Hazard assessment</p> Signup and view all the answers

    If you are grooving a 4" and then an 8" pipe, what should you do?

    <p>Change the wheel</p> Signup and view all the answers

    Where does the Fire Department Connection (FDC) tie into on a wet system?

    <p>System side, downstream of alarm valve</p> Signup and view all the answers

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