Plumbing Basics: Copper Fitting Preparation

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Questions and Answers

What is one of the steps to properly prep a copper fitting?

  • Clean inside of fitting (correct)
  • Apply paint to the fitting
  • Heat the fitting with a blowtorch
  • Submerge the fitting in water

What kind of permit is typically required for grinding work in a plant?

  • Hot work permit (correct)
  • Cold work permit
  • Electrical permit
  • General work permit

What schedule of pipe is required to join a threaded coupling to two pieces of 4-inch pipe?

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

What is the appropriate tool to use for cutting pipe in a trench?

<p>4 wheel cutter (B)</p> Signup and view all the answers

What is the field performance of a fire pump at its rated conditions?

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

What is the frequency for hydrostatic testing of an ABC extinguisher?

<p>12 years (B)</p> Signup and view all the answers

What is the shape of a Class B fire extinguisher?

<p>Red square (A)</p> Signup and view all the answers

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

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

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

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

What size pipe is typically used for entering a cold space?

<p>30&quot; inside enclosure (A)</p> Signup and view all the answers

What is the standard size for a fire boat connection?

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

What size is a class 2 hose valve?

<p>1-1/2&quot; (A)</p> Signup and view all the answers

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

<p>1/2&quot; per 10 feet (A)</p> Signup and view all the answers

If the dry system intermediate check valve is defective and you test the system through the alarm test, what happens?

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

When you are flowing a 2000 gpm fire pump, what should you do first?

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

How do you tell when your hard hat expires?

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

How many bolts and nuts, and what size are required for a 6" OSNY installation?

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

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

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

If a pilot line detector that uses fixed temperature is 6 inches beside an I-beam that is 12 inches deep and 8 inches wide, what are the rules regarding the maximum distance between pilot line detectors?

<p>The maximum distance between pilot line detectors is determined by the temperature profile. (A)</p> Signup and view all the answers

How often should you inspect a sealed control valve?

<p>Weekly (A)</p> Signup and view all the answers

How often should control valves be checked according to Napa 13?

<p>Monthly (A)</p> Signup and view all the answers

What is the flow rate in gallons per minute required for flushing an 8" pipe?

<p>46800 (A)</p> Signup and view all the answers

What is the standard pressure for a hydrostatic test for underground plumbing?

<p>200 psi +/- 5 psi (A)</p> Signup and view all the answers

What is the maximum support capacity of a 3 screw ceiling flange with 1/2" lags?

<p>Supports up to 6&quot; (A)</p> Signup and view all the answers

What is the maximum distance between a 4-way brace?

<p>25 feet (A)</p> Signup and view all the answers

What is the recommended spacing for CLVC hangers?

<p>6 foot 6 inches (A)</p> Signup and view all the answers

How should a pilot tube be used in plumbing applications?

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

A standpipe only serves a portion of the building; what is required to indicate this?

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

How should you clean a pipe for end treatment?

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

What do you do to prep a grooved pipe for installation?

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

How often should dry sprinkler systems be tested?

<p>10 years (A)</p> Signup and view all the answers

What is the standard duration for sprinkler testing?

<p>50 years + 10 years after (A)</p> Signup and view all the answers

How far apart can ground face unions be?

<p>5 feet away from each other (A)</p> Signup and view all the answers

What type of valve can be within 5 feet of fire pump suction?

<p>Listed OS&amp;Y valve (A)</p> Signup and view all the answers

What is the correct sequence for a property owner to shut down the system?

<p>Notify the AHJ, call the fire department if required, notify monitoring (A)</p> Signup and view all the answers

What is the maximum distance that a PIV (Post Indicator Valve) must be installed above grade?

<p>48&quot; (A)</p> Signup and view all the answers

Where is the inspector's test located?

<p>Downstream of alarm valve (A)</p> Signup and view all the answers

A detector has a ceiling temperature of 90°F. What is it classified as?

<p>Ordinary (A)</p> Signup and view all the answers

How many stock sprinklers are needed for 1200 heads?

<p>24 stock (A)</p> Signup and view all the answers

What protective covering can be used for copper fittings?

<p>Cellophane 0.003&quot; or thin paper bag (A)</p> Signup and view all the answers

What is the minimum diameter of PVC pipe commonly used for entry into a building?

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

Solder joints in exposed wet pipe systems are?

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

Multiple drains of sizes 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; (A)</p> Signup and view all the answers

Is supervision required on preaction systems with more than 20 heads?

<p>Yes, it is required. (A)</p> Signup and view all the answers

Where should a quick opening device (QOD) be installed?

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

A placard on a system riser will identify which of the following?

<p>Manufacturer type, brand of antifreeze solution used, and the volume of antifreeze used in the system (A)</p> Signup and view all the answers

What does antifreeze with a backflow require?

<p>An expansion chamber (A)</p> Signup and view all the answers

What is required for drains draining outside?

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

An ordinary head is installed with 6' of a mounted heater. How do you correct this installation?

<p>Install high temp (A)</p> Signup and view all the answers

If a sprinkler head is painted, what should you do?

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

What is the maximum distance allowed between residential plumbing fixtures?

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

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

<p>In between 5' and 5'6&quot; - 2&quot; above obstruction (A)</p> Signup and view all the answers

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

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

What is required for 25 in rack sprinklers that are fed off of an overhead system?

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

You are replacing uprights with pendents; what is the maximum size nipple you can use?

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

How far above the ground can post indicator valves be installed?

<p>32-40 inches (A)</p> Signup and view all the answers

What auxiliary drain size is required on a wet system of 3 gallons?

<p>1/2&quot; (A)</p> Signup and view all the answers

What auxiliary drain is required on a 60-gallon wet system?

<p>1&quot; piped to an accessible location (A)</p> Signup and view all the answers

What is the maximum pipe size for which toggle hangers are permitted to be used?

<p>1-1/2&quot; (A)</p> Signup and view all the answers

What is the correct method to calculate the leakage of a 660ft pipe with a diameter of 6"?

<p>Underground leakage test: $660 * 6&quot; * \sqrt{200psi} / 148000$ multiplied by 2 (A)</p> Signup and view all the answers

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

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

What kind of wrench do you use to install heads?

<p>Sprinkler wrench (A)</p> Signup and view all the answers

What is the rating of a 6500lb sling?

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

What is the recommended angle of a pipe end for welding?

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

What is the recommended testing frequency for a 1-1/2" hose valve?

<p>3 years (A)</p> Signup and view all the answers

What is required for outdoor scaffolding?

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

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

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

What is an unsupported length for a 1" copper fitting?

<p>36&quot; long (A)</p> Signup and view all the answers

What is the maximum time for an audible alarm to go off?

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

What is the time for the audible alarm to go off in a marine system?

<p>30 secs (A)</p> Signup and view all the answers

Where is the hydraulic data plate found?

<p>At system riser (A)</p> Signup and view all the answers

As a sprinkler fitter teaching your apprentice a new skill, what should you do?

<p>Observe it? Demonstrate it? (A)</p> Signup and view all the answers

What size hole is required for a 2" pipe subject to earthquake conditions?

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

You are late to the site, who do you call first?

<p>General Contractor (GC) (A)</p> Signup and view all the answers

What is the coverage area of a maximum sprinkler head?

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

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

<p>10'' (A)</p> Signup and view all the answers

How to properly operate a drum drip?

<p>Shut upper valve, open lower, close lower, open upper (A)</p> Signup and view all the answers

What is the best method for joining CPVC pipes?

<p>Solvent cement (A)</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 (A)</p> Signup and view all the answers

Which NFPA standard is used for high expansion foam?

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

What must be done prior to installing CO2 pipe?

<p>Clean inside with solvent to remove oil and debris (A)</p> Signup and view all the answers

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

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

What is the first step to fix a fire pump?

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

How do you store acetylene bottles?

<p>Secured upright, bottle off, regulator off (A)</p> Signup and view all the answers

How are deluge systems designed?

<p>Hydraulic calc (A)</p> Signup and view all the answers

Given a load of 5000 lb per square foot, what is the correct formula to determine the height of the tank?

<p>5000 divided by 12, divided by another 12, divided by 0.433 (A)</p> Signup and view all the answers

When should a fire department connection (FDC) be omitted?

<p>Single story not exceeding 1800 sqft (A)</p> Signup and view all the answers

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

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

What pump shall be permitted to maintain system pressure?

<p>Jockey pump (A)</p> Signup and view all the answers

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

<p>Vortex plate installed on the storage tank outlet (A)</p> Signup and view all the answers

What are supervisions on a dry pipe system?

<p>Low pressure and control valve tamper (A)</p> Signup and view all the answers

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

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

What type of sprinkler requires testing after 10 years?

<p>Dry pendents (A)</p> Signup and view all the answers

When should antifreeze be tested?

<p>Annual (A)</p> Signup and view all the answers

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

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

How often should locked control valves be inspected?

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

What should be left inside the sprinkler head box?

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

What is the maximum size of pipe where labeling is not required?

<p>2 feet (A)</p> Signup and view all the answers

What extinguisher is used to protect against charged equipment?

<p>Class C extinguishers (A)</p> Signup and view all the answers

Multiple auxiliary drain tie in, what size is your drain?

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

What is the bend radius of a 6" Schedule 40 pipe with an angle of 180 degrees?

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

What do you do first before starting a job in a confined space?

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

If you are grooving a 4" fitting but need to groove an 8" fitting next, what do you need to change out?

<p>The grooving wheel (A)</p> Signup and view all the answers

Flashcards

Copper fitting prep step

Clean the inside of the fitting.

Grinding work permit

A hot work permit is typically required.

Pipe schedule for threaded coupling

Schedule 40 pipe is used for joining a threaded coupling to 4-inch pipes.

Pipe cutting tool for trench work

A 4-wheel cutter is often used for cutting pipe in a trench.

Signup and view all the flashcards

Fire pump field performance

At rated conditions, fire pumps usually achieve 150% capacity at 65% head.

Signup and view all the flashcards

ABC extinguisher hydrostatic test frequency

Hydrostatic testing of ABC extinguishers is done every 12 years.

Signup and view all the flashcards

Class B fire extinguisher shape

Class B extinguishers are red in color and square in shape.

Signup and view all the flashcards

Post-installed anchor installation tool

A hammer drill is often used for installing post-installed anchors.

Signup and view all the flashcards

Air compressor cycling issue fix

Drain the compressor tank through the lowest cock if it's cycling on and off.

Signup and view all the flashcards

Cold space pipe size

30" inside enclosure pipe is typically used for entering a cold space.

Signup and view all the flashcards

Fire boat connection size

The standard size for a fire boat connection is 6 inches.

Signup and view all the flashcards

Class 2 hose valve size

A class 2 hose valve is typically 1-1/2 inches.

Signup and view all the flashcards

Branch line freezer slope

The recommended slope for a branch line in a freezer is 1/2 inch per 10 feet.

Signup and view all the flashcards

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