Plumbing Ch. 4 Multiple Choice

No hub cast iron soil pipe and fittings are available in sizes ranging from ____" to _____" A. 1/2;12 B. 1 1/2;15 C. 2 1/2;18 D. 4;24

B. 1 1/2; 15

Drawn and annealed copper tubes are stamped every ___" with the tube type, manufacturer name or trademark, and country of origin. A. 6 B. 12 C. 18 D. 24

C. 18

ABS pipe and fittings have an operational temperature range of ___ F to _____ F. A. 0;100 B. -20;140 C. -40;180 D. -60;240

C. -40;180

_____ is a thermosetting plastic made from medium or high density cross linkable polyethylene and is used for water service and cold and hot water distribution piping. A. PE B. CPVC C. ABS D. PEX

D. PEX

A ____ valve is an automatic device used to convert high and/or fluctuating inlet water pressure to a lower or constant outlet pressure. A. backwater B. butterfly C. check D. pressure reducing

D. Pressure Reducing

A _____ is a backflow prevention device that consists of a spring loaded check valve that seals against an atmospheric outlet when water is turned on. A. backwater valve B. sillcock C. hose bibb D. vacuum breaker

D. Vacuum breaker

Steel pipe is available in nominal pipe sizes ranging from ____" to ____". A. 1/8;12 B. 1/2;12 C. 1;15 D. 2 1/2;18

A. 1/8;12

Schedule _____ steel pipe is standard weight steel pipe A. 40 B. 60 C. 80 D. 120

A. 40

A(n) ____ valve is a globe valve in which the inlet and outlet are at 90 degree to each other. A. angle B. stop-and-waste C. backwater D. none of the above

A. Angle

A _____ is a valve through which water or gas flow is controlled by a circular core or plug that fits closely in a machined seat. A. core cock B. gate valve C. globe valve D. none of the above

A. Core cock

A _____ is a plumbing design in which centrally located manifolds distribute water to each fixture with dedicated hot and cold water lines A. home run B. manifold system C. direct line D. main system

A. Home run

_____ are a family of synthetic materials manufactured from petroleum based products and chemicals. A. Plastics B. Neoprene C. Resins D. None of the above

A. PLastics

A ____ fitting is a pipe fitting in which the dimension of at least one opening is smaller than other openings. A. reducing B. straight C. standard D. none of the above

A. Reducing

A ____ nipple is threaded on the ends and has a short portion of unthreaded in the middle A. shoulder B. close C. wide D. no shoulder

A. Shoulder

A ____ valve is designed to control fluid flow rate by partially opening or closing the valve. A. throttling B. shutoff C. full-way D. rated

A. Throttling

Bell and spigot cast iron soil pipe and fittings designated as service weight are available in sizes ranging from _____" to ____". A. 1/2;12 B. 2;15 C. 2 1/2;18 D. 4;24

B. 2;15

A ___ nipple is threaded its entire length. A. shoulder B. close C. wide D. no shoulder

B. Close

A ____ cock is placed on the water main to which the water service of the building is connected. A. curb B. corporation C. gas D. sill

B. Corporation

CPVC are _____-colored thermoplastic materials specially formulated to withstand higher temperatures than other plastics A. black B. cream C. white D. orange

B. Cream

Plastic pipe is manufactured by the _____ process in which plastic resins are heated, softened, and forced through a cylindrical die. A. injection molding B. extrusion C. thermoforming D. gleaning

B. Extrusion

____ valves have a split-or-solid wedge disk. A. Ball B. Gate C. Globe D. Backwater

B. Gate

The ____ process is a PEX manufacturing process in which polyethylene is subjected to high energy electrons to form the cross linked bond A. silane B. radiation C. Engel D. all of the above

B. Radiation

The unthreaded stem and handwheel of a ____ gate valve rise as the valve is opened to indicate the position of the wedge disk. A. nonrising stem inside screw B. rising stem inside screw C. rising stem outside stem and yoke D. all of the above

B. Rising stem inside screw

CPVC pipe is joined by _____. A. threading B. solvent cement C. compression fittings D. flared fittings

B. Solvent cement

A(n) ____ valve is a non rated globe valve with a side port in the valve body which is used to drain fluid from the outlet side of the valve. A. angle B. stop-and-waste C. backwater D. none of the above

B. Stop-and-waste

A ____ fitting is a pipe fitting in which all openings are the same dimension. A. reducing B. straight C. standard D. none of the above

B. Straight

A hinged disk or flapper within the body of a ____ backwater valve prevents backflow of sewage into a building. A. lift check B. swing check C. ball D. none of the above

B. Swing check

A ____ relief valve is a safety device used to protect against excessive temperature and/or pressure in a water heater. A. pressure B. T&P C. temperature D. none of the above

B. T&P

The _____ process is the PEX manufacturing process in which peroxides release molecules for cross linking A. silane B. radiation C. Engel D. all of the above

C. Engel

A ____ valve is designed to be used in its fully open or fully closed position. A. control B. throttling C. full-way D. rated

C. Full-way

A ____ valve is a full-way valve used to regulate fluid flow in which a threaded stem raises and lowers a wedge shaped disk that fits against a valve seat within the valve body. A. ball B. globe C. gate D. backwater

C. Gate

The disk in a ____ valve moves vertically within the valve body to prevent backflow. A. globe B. butterfly C. lift check D. swing check

C. Lift check

The threaded stem of a ____ gate valve rises as the valve is opened. A. nonrising stem inside screw B. rising stem inside screw C. rising stem outside stem and yoke D. all of the above

C. Rising stem outside stem and yoke

A ____ disk gate valve is a gate valve in which a one piece solid bronze wedge fits against the valve seat to restrict fluid flow. A. single B. split wedge C. solid wedge D. none of the above

C. Solid wedge

Cast copper alloy fittings are an alloy of _____ and are cast in sand molds. A. copper B. tin C. zinc D. all of the above

D. All of the above

Cast iron soil pipe and fittings are _____. A. nonabsorbent B. corrosion-resistant C. leakproof D. all of the above

D. All of the above

Compression joint fittings are used with type ____ annealed copper tube. A. K B. L C. M D. all of the above

D. All of the above

Copper tube is used for ______. A. fire suppression systems B. water supply and distribution piping C. HVAC applications D. all of the above

D. All of the above

Flared joint fittings are used with type ____ annealed copper tube. A. K B. L C. M D. all of the above

D. All of the above

Gate valves are available in _____ configuration. A. nonrising stem inside screw B. rising stem inside screw C. rising stem outside stem and yoke D. all of the above

D. All of the above

Most standards require plastic pipe to be marked with ____. A. manufacturer name or trademark B. pipe size C. resin type D. all of the above

D. All of the above

PEX offers many advantages over other plumbing materials, such as copper, including _____. A. faster installation B. high temperature and high pressure resistance C. chemical and corrosion resistance D. all of the above

D. All of the above

Pipe is a cylindrical tube used for conveying ____ from one location to another. A. wastewater B. potable water C. waterborne waste D. all of the above

D. All of the above

Steel pipe and fittings are used for ____ piping systems. A. sanitary waste and vent B. water distribution C. stormwater drainage D. all of the above

D. All of the above

_____ pipe is steel pipe manufactured by drawing flat steel strips through a die to form a cylindrical shape and then electric butt welding the seam to create a leakproof joint. A. Butt-welded B. Continuous weld C. Welded D. all of the above

D. All of the above

A ____ valve permits fluid flow in only one direction and closes automatically to prevent backflow. A. butterfly B. globe C. gate D. check

D. Check