Plumbing - Session 4 Part 1

Caulking ferrules are generally used as a connection between:

A. Lead pipes and cast iron pipe.

B. cast iron and brass pipe.

C. Brass pipe and copper tube.

D. Cast iron and vitrified clay pipe.

A full wiped joint is made between 4- inch lead waste pipe and a 4-inch brass ferrule. The minimum dimensions (length and diameter at the thickest part) of this wipe joint shall be most nearly:

A. 1-1/4 inch long x 4-1/4 inch in diameter.

B. 2-inch long x 4-1/2 inch in diameter.

C. 1-1/2 inch long x 4-1/2 inch in diameter.

D. 1-1/2 inch long x 5 inch in diameter.

The type of thread that is used on standard brass pipe (IPS) is known as the :

A. ASME B 1.20.1.

B. Briggs standard.

C. American standard pipe thread form.

D. A, B & C.

Caulked joints used in cast iron bell and spigot soil pipe shall be firmly packed with oakum or hemp and filled with molten lead not less than:

A. 1-1/4 inches deep.

B. 1-1/2 inches deep.

C. 3/4 inches deep.

D. 1 inch deep.

Joints in clay pipe shall be properly made by using:

A. Sleeve couplings.

B. Hot poured compounds.

C. Elastomeric seal.

D. Flexible joints.

In particular horizontal hot water line expansion joints are set 50 feet apart. This line should be well supported and anchored:

A. At the expansion joints.

B. immediately each side of the expansion joints.

C. Midway between the expansion joints.

D. Eight (8’) feet each side of the expansion joint.

In forming of a preformed joint, the joint space shall be most nearly:

A. Without jute or hemp.

B. 25% filled with jute or hemp.

C. 50% filled with jute or hemp.

D. 33-1/3% filled with jute or hemp.

Which one of the following statements is not correct:

A. Pipe threads shall be, American (national) standard pipe thread form.

B. All burrs shall be removed from pipe and fittings before installation.

C. Pipe joint compound or tape shall be applied only on mail threads.

D. The number of threads per inch on a 2 inch pipe is 11-1/4.

Joints in cast iron soil pipes shall be most nearly:

A. Mechanical joint coupling.

B. compression gasket joints.

C. Caulked joints.

D. A, B & C.

A 15 inch XHCI soil pipe is to be installed. The lad joint shall:

A. A minimum of 2-1/2 inch in depth.

B. molten lead shall be poured in one operation to a depth of not less than 1”.

C. 15 pounds in weight.

D. The lead shall not recede more than 0.25 inch, 1/4 inch.

joints between copper tube and threaded pipe shall be:

A. Using a brass caulking ferrule.

B. preformed bituminous.

C. Brass adapter fitting or dielectric fitting.

D. Wiped joint.

One approved method of joining cast-iron piping is by caulking, another approved method:

A. Compression gasket joints.

B. flexible joints.

C. Hot poured joints.

D. Cement joints

Paint is not permitted on the jointing material at a joint in cast iron pipe:

A. At any time.

B. until two days after construction of the joint.

C. Until the entire plumbing installation is complete.

D. Until after the joint has been tested and accepted.

The one material that is not permitted to be used for forming joints in concrete sewer pipes:

A. Mechanical joint of the compression type.

B. mechanical joint of the mechanical-seal type.

C. Elastomeric seal conforming to ASTM C 443

D. Cement.

Slip joints in expansion joint:

A. Requires approval from the commissioner.

B. will be permitted.

C. Will be permitted only when non- ferrous piping is used.

D. Requires approval from the board of standard and appeals.

Condensate piping shall be of corrosion-resistant material and shall not be smaller:

A. Than 1/8 inch internal diameter.

B. than 1/4 inch internal diameter.

C. Than 3/8 inch internal diameter.

D. Than 3/4 inch internal diameter.

Materials approved for the condensate disposal system shall be:

A. Cast iron and galvanized steel.

B. copper, cross-linked polyethylene.

C. Polyethylene, ABS, CPVC or PVC pipe or tubing.

D. A, B & C.

Joints the cast-iron pipe and vitrified clay pipe shall be made by:

A. Caulking the vitrified clay pipe into the bell of the cast iron pipe.

B. hot poured bitumastic compound or by a preformed bituminous ring.

C. A mechanical joint of the compression or mechanical sealing type.

D. Soil pipe adapter caulked.

When permitted to be used the composition of 95-

5 solder is:

A. 95% tin and 5% lead.

B. 95% tin and 5% silver.

C. 95% tin and 5% copper.

D. 95% tin and 5% antimony.

The one type of joint not permitted for connecting a floor flange to the drainage piping:

A. Caulked.

B. soldered.

C. Wiped.

D. Screwed.

Of the following statements the one which is correct is that the number of threads per inch on a pipe:

A. Increases as the diameter of the pipe increases.

B. decreases as the diameter of the pipe increases.

C. Remains constant of all diameters of pipe.

D. Depends upon the total of thread cut on the pipe.

Which one of the following statements is not correct:

A. Joints in chemical waste glass piping shall be made with adapters having a TFE (Tetra-Fluoro-Ethylene) seal and shall be installed in accordance with the manufacturer’s instruction.

B. glass-to-glass connections shall be made with a bolted compression-type stainless steel (300 series) coupling with contoured acid-resistant elastomeric compression ring and a fluorocarbon polymer inner seal ring.

C. Every lead-caulked joint for hub and spigot soil pipe shall be firmly packed with oakum or hemp and filled with molten lead not less than 1 inch deep and not to extend more than 0.

125 inch, 1/8 inch below the rim of the hub.

D. Threads shall conform to ASME B1.20.1.

Welding is permitted on joints for:

A. Galvanized iron water pipe.

B. cast-iron vent pipes.

C. Joints between brass pipe or fittings.

D. Wrought-iron drainage piping.

Joints between cast-iron hub pipe and copper tube shall not be made by:

A. Copper tubing to be soldered to the ferrule in an approved manner.

B. brass ferrule shall be joined to the cast iron hub by a caulked joint.

C. Brass ferrule shall be joined to the cast iron by a mechanical compression joint.

D. Direct caulking.

Joints in cast-iron pipe to galvanized steel or brass pipe shall be made by:

A. Caulked.

B. Threaded.

C. With an approved adapter fitting.

D. A, B & C.

Which one of the following statements is correct:

A. Connections between drainage piping and water closets shall be made by means of brass flanges that are caulked to the drainage pipe.

B. connections between drainage pipe and earthenware trap standards shall be made by means of brass flanges that are brazed to the drainage pipe.

C. Connections between the drainage pipe and pedestal urinals shall be made by means of a cast iron flange that are screwed to the drainage pipe.

D. Connections between drainage pipe and floor outlet service sinks shall be secured to the floor or floor flanges by screws or bolts.

Joints formed where fixtures come in contact with walls or floors shall be:

A. Made tight.

B. opened for service.

C. Sealed.

D. Suitable.

The required toilet facilities in occupancies other than places of assembly or mercantile shall be located mot more than ... story above or below the employees' working area and the path of travel to such facilities shall not exceed a distance of ... feet:

A. One, 200.

B. Two, 300.

C. One, 400.

D. One, 500.

Pipe joint compound should be applied on:

A. The threads of male fitting only.

B. The threads of female fittings only.

C. The threads of both male and female threads.

D. Either male or female threads, depending on the type of fitting.

Joints between asbestos-cement pipe or fittings shall be made with a:

A. Approved rubber material.

B. Flexible joint.

C. Sleeve couplings, sealed with elastomeriic.riing.

D expansion joint.

When two pieces of 1-1/2 inch waste lead are to be joined together the overall exposed surface of the joint is most nearly:

A. 2-1/2 inches.

B. 2-1/4 inches.

C. 1-1/2 inches.

D. 2 inches. ```

A lead shower pan (6 lb. lead) is to have its edges welded. The minimum thickness of the lead joints is most nearly:

A. 3/8 inch.

B. 3/32 inch.

C. 1/8 inch.

D. 3/16 inch. ```

The one method that cannot be used for connections between threaded pipe and cast iron pipe:

A. Approved adapter fitting.

B. mechanical joint.

C. Threaded joint.

D. Brazed. ```

Joints in concrete sewer pipe shall be made of:

A. Flexible joints.

B. cement joints.

C. Concrete joints.

D. Elastomeric seal. ```

When threads conform to "American National Standard Pipe Thread Form" ASME B1.20.1, the standard would reveal the taper of the taper of the pipe threads to be:

A. The angle between the sides of the thread is 60 degrees when measured in an axial plane.

B. the taper of the thread is 1 in 6 or 0.75 per ft.

C. NTP taper pipe threads are intended to be made up wrench-tight and with a sealant whenever a pressure-tight joint is required.

D. A, B & C.

A wiped joint shall have an exposed surface. at least 3/4 inch on each side of the joint and a minimum thickness, at its thickest part:

A. 3/8 inch.

B. 1/4 inch.

C. 1/2 inch.

D. 3/4 inch.

The minimum depth of a lead joint in a 15-inch XHCI hub is:

A. 1 inch.

B. 2-1/4 inches.

C. 2-1/2 inches.

D. 3.inches.

Joints between lead and galvanized steel pipes shall be made by means of:

A. Expansion joint.

B. threaded joints.

C. Soldering nipple and a wiped joint.

D. Brazing.

The effect, when vigorous caulking a joint after it has been run with overheated lead:

A. A very hot joint.

B. an acceptable joint.

C. A joint which looks alright, but which may, or may not pass inspection.

D. An unacceptable joint because the lead will crack and chip due to brittleness.

Tin can be used for lining pipes that are exposed to particularly:

A. Hot waters.

B. corrosive waste.

C. High pressure.

D. Hard waters.

"Cut acid" commonly used as a flux for soldering galvanized iron or iron is made by dissolving in:

A. Vitriolic acid and as much zinc as it will take,

B. muriatic acid and as much zinc as it will take.

C. Caustic soda and as much zinc as it will take.

D. Vitriolic acid and as much lead as it will take.

The wrench that is most often recommended when fabricating threaded plastic pipes and fittings::

A. Stillson wrench.

B. strap wrench.

C. Open-end wrench.

D. Torque wrench.

In the past the United States Department of Commerce published Commercial Standards for Cast iron enameled plumbing fixtures. In accordance with these standards, a slight depression of the enamel surface is defined as:

A. Lump.

B. speck.

C. Dimple.

D. Crack.

Joints between vitrified clay pipe or fittings shall be made with:

A. Caulked joint.

B. elastomeric seal.

C. Cement joint.

D. Hot poured compound.

Joints between cast-iron pipe and vitrified clay pipe shall be made by:

A. Caulking the vitrified clay pipe into the b ell of the cast iron pipe.

B. connectors and adapters shall be approved for the application and such joints shall have elastomeric seal.

C. Hot poured bitumastic compound.

D. Cement with a special hardener.

The valve, shown here, is most nearly a:

A. Soldered angle valve.

B. Cast-iron globe valve.

C. Flanged globe valve.

D. screwed globe valve.

The correct procedure in "making up" a threaded pipe joint would bento screw the pipe into the fitting:

A. Until two threads are left exposed on the pipe.

B. a distance equal to the diameter of the pipe.

C. Until no threads are showing on the pipe.

D. A distance equal to twice the length of the fitting thread.

Two suitable types of joints for pressure piping larger than six inches in diameter:

A. Bell and spigot.

B. welded and flanged.

C. Brazed and caulked.

D. Threaded and soldered.

Which one of the following statements is most nearly correct?

A. The solubility of tin in potable water is great enough to ultimately cause the breakdown of the public health.

B. On occasion, the solution of copper in potable water (brass piping system) has been found to be as high as 0.2 to 0.3 parts per million.

C. Zinc is sufficiently soluble in potable water to have a slightly injurious effect on the health of the public under unusual conditions.

D. The presences of iron in water in high concentration is desirable because of its health resorting qualities.

Leadite has been recommended by some authorities for use in bell and spigot joints in cast-iron pipes. When used, it is:

A. Caulked cold with the use of caulking chisels similar to lead wool.

B. Melted and poured like lead.

C. Heavier than lead.

D. Not as elastic as lead.

Unions shall conform to the type of piping in which they are installed and shall have ground seats that are: … ?

Wiped joints in a drainage systems shall not:

A. Joints shall be fully wiped.

B. shall have an exposed surface on each side of the joint not less than 0.75 inch.

C. The joint shall be at least 0.375 in. thick at the thickest point.

D. The composition of the solder shall be at least a minimum of 50% tin.

Glass pipe joints in chemical waste shall not be made with:

A. Bolted compression-type stainless steel (300 series) coupling with contoured acid-resistant elastomeric compression ring, glass to glass.

B. a fluorocarbon polymer inner seal ring, glass to glass.

C. Acid-resistant rope and acid proof cement shall be permitted in a cast-iron soil pipe hub, glass to cast-iron, or an adapter having a tetra-fluoro-ethylene seal (TFE).

D. The use of an adapter using a high copper content in brass.

Joints between lead pipe and galvanized fitting shall be made with:

A. Adapter fitting.

B. threaded joint.

C. Soldering nipple or bushing.

D. Caulked joint.

Connections between drain and floor outlet plumbing fixtures shall be made with a: A, B, C, D, E. The floor flanges shall be attached to the drain by: F, G, H, I, J, K. Floor outlet fixtures shall be secured to the: L, M by N, O. Connection between the drain and wall hung water closets shall be made with: P, Q.

Securing wall-hung water closet bowls shall be supported by a ... that is attached to the building structural members so that ... is not transmitted to the ... or any part of the plumbing system.

Bolting materials used for wall-hung water closets shall be: A. Steel for studs. B. steel for nuts. C. Steel for cap screws and other fasteners. D. A, B and C.

Where fixtures come in contact with walls and floors the joints that are formed shall be: A. Water-tight and sealed. B. neatly installed in a workmanship like manner. C. Air-tight and sealed. D. Approved to the owners satisfaction.

When caulking lead joints in cast iron bell and spigot soil pipe the surface shall not be depressed more than:

A. 1/16" below the rim of the hub.

B. 1/8 below the rim of the hub.

C. 3/16" below the rim of the hub.

D. 1/4" below the rim of the hub. ```

A "dresser" is most frequently used on :

A. Chrome-plate.

B. brass pipe.

C. Lead pipe and sheet lead.

D. Wrought iron pipe. ```

Gas piping installed to individual gas ranges shall not be less than:

A. 1.00 inches.

B. 0.75 inches.

C. 0.50 inches.

D. 0.375 inches.

Joints in threadless copper pipe for water supply piping shall be made by:

A. Threading.

B. Soft solder.

C. Brazing.

D. Screwed.

Two methods of making a joint between cast iron soil pipe and copper tube shall be: A, B?

Of the following plumbing piping, the one in which "hoarfrost" usually occurs in the :

A. Soil pipe.

B. vent pipe.

C. Waste pipe.

D. Water pipe.

A small percentage of antimony is introduced into wiping solders to:

A. Improve workability.

B. to increase the plasticity.

C. Give the joint greater strength.

D. Bring out the "spots" in the joint.

A full wiped joint is made between 4-inch lead waste pipe and a 4-inch brass ferrule. The minimum dimensions (length and diameter at the thickest part of this wiped joint shall be most nearly:

A. 1-1/4" long x 4-1/4" in diameter.

B. 2" long x 4-1/2" in diameter.

C. 1-1/2" long x 4-1/2"" in diameter.

D. 1-1/2" long x 5 inch in diameter

The number of threads per inch used on 3/4 inch standard galvanized steel water supply piping is most nearly :

A. 18

B. 14.

C. 11 1/2.

D. 8.

Caulking ferrules are generally used as a connection between:

A. Lead pipes and cast iron pipes.

B. cast iron and vitrified clay pipe.

C. Cast iron and brass pipe.

D. Brass pipe and copper tubing.

""The hydraulic and pneumatic phenomena that occur in drainage system are very complicated and, are not amenable to rational analysis. Essentially the problem is to design the system so as to use the smallest pipes that are consistent with rapidly carrying away the wast water from fixtures without clogging the pipes, without producing excessive pressure fluctuation at points where the fixture drains connect to the stack which might reduce the water seals, and without creating undue noise."

In accordance to the above paragraph the word phenomena best defines:

A. Usage

B. happenings.

C criteria.

D. Motion.

""The hydraulic and pneumatic phenomena that occur in drainage system are very complicated and, are not amenable to rational analysis. Essentially the problem is to design the system so as to use the smallest pipes that are consistent with rapidly carrying away the wast water from fixtures without clogging the pipes, without producing excessive pressure fluctuation at points where the fixture drains connect to the stack which might reduce the water seals, and without creating undue noise."

In accordance to the above paragraph the word fluctuations best defines:

A. Compressions.

B. accelerations.

C. Blockages.

D. Waves.

The galvanized malleable iron drainage fitting that is called a "Tucker" connection has:

A. Male threads on one end and female threads on the other end.

B. one end in the form of a hub and female threads on the other end.

C. One end in the form of a hub and male threads on the other end.

D. Each end in the form of a hub.

4 2-inch caulking ferrules, two 3-inch caulking ferrules and one (1) 4-inch caulking ferrule conforming to the minimum requirements of the code, table 705.18, shall have a weight most nearly:

A. 10 lbs.

B. 12 lbs.

C. 8 lbs.

D. 18 lbs.

When a 3-inch extra-heavy cast-iron stack 57 ft. -5-inch high is filled with water for a water test, the pressure in pounds per square inch at the base of the stack is most nearly:

A. 28.7.

B. 19.4.

C. 13.3.

D. 24.9.

Joints in cast-iron soil pipe shall be: | A, B, C, D?

Caulked joints for cast-iron soil pipe shall be:

A. Packed with: …

B. filled with molten lead: …

C. Lead surface not depressed more than: …

D. No coating permitted until joint has been: …

E. lead shall be run in: …?

The proper method for joining "TP" copper pipes is most nearly:

A. Brazing.

B. flaring.

C. Threading.

D. Caulking.

Separate drainage systems for chemical waste shall be of acid resistant material when the waste water at any point in the system will have a PH of less than:

A. 2.0

B. 4.5

C. 7.0

D. 9.5? ```

The inside diameter of a three " brass caulking ferrule is:

A. 3-1/2 in.

B. 3-1/4 in.

C. 3-1/8 in.

D. 3 in. ```

A contractor bought 16 quarts of cutting oil. On one job 1/4 of the oil was used; on another job 1/6 of the remainder was used and on a third job 1/10 of what was left was used. The number of quarts of oil returned to the shop was most nearly:

A. 8-1/4

B. 9

C. 7

D. 7-1/2.

The base fitting of the start of the building house drain (to be installed at a grade of 1/

4 in. per ft.) is at invert of -8.75 ft. and the invert of the building house trap is at -10.83 ft. The length of this drain line is most nearly:

A. 30 ft.

B. 70 ft.

C.85 ft.

D. 100 ft. ```

An objection to an application of tar-coating cast-iron pipes:

A. Reduction to an application of tar-coating cast-iron pipes.

B. possibility of concealing flaws.

C. Not fire-reltarding.

D. Increases frictional resistance to flow of waste water.

With respect to drainage piping within a structure, the maximum developed length to which leas pipe may be used in connection with any one fixture shall be:

A. 2 ft.

B. 3 ft.

C. 4 ft.

D. 5 ft. ```

Vitrified clay pipe is an approved material when used to install a:

A. Sanitary building house drain for one and two family dwelling.

B. foundation (subsoil drain pipe) drain.

C. Blow-off discharge-drain.

D. Drain to a septic tank.

A pipe that has high percentage of silicon is generally used for:

A. Sanitary waste.

B. acid waste.

C. Storm waste.

D. Oil separators. ```

All joints and connections in the plumbing system shall be:

A. Water tight.

B. air tight and gas tight.

C. Gas tight and water tight.

D. Just tight. ```

The information that a plumber would not normally expect to find on each section of cast-iron pipe delivered from the factory is the:

A. Manufacture's name.

B. weight category.

C. Diameter.

D. Length. ```

In the course of doing a specific job it becomes necessary to join a lead bend and brass ferrule together by wiping. The composition of the solder, which is best suited for preparing the brass ferrule (tinning) before wiping is: .

A. 60% lead - 40% tin.

B. 50% lead - 50% tin.

C. 66% lead - 34% tin.

D. 33% lead - 67% tin. ```

A top borer is tool that will be used when making:

A. A water supply connection into the public street main.

B. threads for machine bolt.

C. A hole in a lead pipe.

D. A hole in a street.

After a flushometer valve has been placed in operation, the force which causes it to close automatically is:

A. The return of the lever handle to the neutral position.

B. a flat helical spring above the diaphragm.

C. The water pressure on the outlet side of the valve which is supplied to a space above the relief valve.

D. The springy force in a stainless steel diaphragm.

Which one of the following materials used in building construction is most likely to attack nearly all kinds of piping:

A. Lime stone.

B. cement.

C. Cinder.

D. Plaster. ```

You are working at running and caulking bell and spigot joints on a soil stack. If for any reason the oakum already in a joint should become damp an acceptable thing to do is to:

A. Re-pack the same oakum vigorously.

B. heat the outside lower portion of the bell with a high temperature oxyacetylene welding torch.

C. Pour several tablespoons of cutting oil on top of the caulked oakum, wait a few minutes and then go ahead with the pouring.

D. Reduce the temperature of the lead?

Of the following statements concerning the use of the wicking on threaded brass joints, the one which is most nearly correct is that this:

A. Eliminates the use of pipe compound.

B. indicates best modern day practice.

C. Strengthens the joint.

D. Suggests possible existence of an imperfect thread.

The copper to copper-zinc alloy pipe which is most easily corroded by the combined action of oxygen, and carbon dioxide in the water is:

A. Copper pipe.

B. yellow brass pipe.

C. Bronze pipe.

D. Red brass pipe. ```

In brazing a joint, the brazing alloy is applied at a temperature that is most nearly:

A. At the melting temperature of the metal being brazed.

B. Above the melting temperature of the metal being brazed.

C. Below the melting temperature of the metal being brazed.

D. At approximately the plastic temperature range of the alloy.

The flush mechanism in a low-down tank water closet is equipped with a copper float. If this float should become perforated and filled with water the probability:

A. The closet would flush once and then fail to operate.

B. the closet could be continued in use though water would be wasted.

C. The closet could be continued in use for several days without annoyance or waste.

D. The closet could not be used at all.

To make a rust joint between two pieces of threaded wrought-iron pipe the best thing to use , of the following:

A. Solution of iron filings.

B. bituminous material.

C. Solution of sal-ammoniac.

D. Water glass compound. ```

Extra-heavy cast-iron pipes are preferred to standard service weight cast-iron pipes for installation in plumbing system because:

A. More acid resistant.

B. back-pressure.

C. Capacity is larger.

D. Easier to install. ```

On solder joints for type "K" or "L" hard temper copper tubing, when can you use 50-

50 solder:

A. On all soil, waste and bent systems.

B. on potable water distribution piping.

C. On hot water heating systems.

D. On soil adapter.

Joints between asbestos-cement pipe or fittings shall be made with:

A. Sleeve coupling of the same composition as the pipe, sealed with elastomeric compound.

B. Caulked with oakum and poured with lead.

C. Hot poured elastomeric compound.

D. Mechanical joint.

Soldered joints in type "L" hard temper tubing may be used for alterations of dwellings that are: A.

5 stories or less. B.

6 stories or less. C.

100 feet in height.

D. Any height. ```