Distribution piping

Question 1

special purpose joint primarily used for river crossings and at intake structures (connected by bolted or boltless design)
-allow up to 15 degrees of deflection

Answer 1

ball and socket joints

Question 2

two machines surfaces that are tightly bolted together with a gasket in between the two surfaces
-used where rigidity is required and installed in exposed locations

Answer 2

flanged joints

Question 3

utilizes a segmented coupling that is bolted together and compresses a gasket into grooves on the end of the pipe

Answer 3

grooved and shouldered joints

Question 4

made by bolting a movable follower ring on a spigot to a flange on the bell
-follower ring compresses a gasket to make the seal

Answer 4

mechanical joints

Question 5

pipe is manufactured so that one end has a bell with a recess that houses a rubber ring gasket
-other end has a beveled spigot that is pushed into the bell

Answer 5

push on joints

Question 6

a joint that has been restrained by some mechanical means

-ensures pipe doesn’t separate

Answer 6

restrained joint

Question 7

measure of the roughness of a pipe’s interior surface that retards flow due to fiction

Answer 7

c value (c factor)

Question 8

mechanical pipe joint consisting of one cylindrical middle ring, two follower rings, two resilient gaskets made up of a special dresser compound and a set of steel track bolts

Answer 8

dresser coupling

Question 9

type of grooved joint that has mechanical pipe joint that utilizes grooves in the pipe ends, a gasket, and a coupling housing to join pipe together

Answer 9

victaulic joint

Question 10

measure of how much resistance the material has to longitudinal pull

Answer 10

tensile strength

Question 11

measure of the pipes ability to bend or flex without breaking

Answer 11

flexural strength

Question 12

standard that all pipe material must meet to be used in potable water systems

Answer 12

NSF 61