WFSM VOLUME 3. PLUMBING SYSTEMS
EXAMS WITH COMPLETE SOLUTIONS
The benefit galvanization provides a steel pipe is it
a. makes the pipe easier to bend
b. increases pipe thickness.
c. increases pipe strength .
d. reduces corrosion. - ANSWER-d. reduces corrosion.
What is used to join black iron and stainless steel pipe sections with diameters of 2"
within newer fuel systems?
a. Threaded connections.
b. Welds and welded flanges.
c. Compression type fittings.
d. Hub and spigot connections. - ANSWER-b. Welds and welded flanges.
How do street elbows differ from standard elbows?
a. Standard elbows have male threads.
b. Street elbows have recessed threads
c. Standard elbows have tapered threads.
d. Street elbows have one female and one male end - ANSWER-d. Street elbows have
one female and one male end
Identify the smallest measurement increment on most tape measures used in our trade.
a. Thirty-second inch.
b. Sixty-fourth inch.
c. Sixteenth inch.
d. Eighth inch. - ANSWER-c. Sixteenth inch.
Which kind of tape measure can you use to determine travel when the offset angle is
known to be 45 degrees (°)?
a. Angle rule.
b. Travel rule.
c. Standard rule.
d. Plumber's rule. - ANSWER-d. Plumber's rule.
You can also measure travel if you do not have a plumber's rule by using a standard
tape measure and multiplying the distance by a. 1.114
b. 1.141
с. 1.414
d. 1.411 - ANSWER-c. 1.414
, In order to mak e accurate measurements, how do you determine the center of a fitting?
a. Read the branch, then the run.
b. Determine the angle of the branch.
c. Divide the length of the fitting by 2
d. Find where lines drawn through the fitting intersect. - ANSWER-d. Find where lines
drawn through the fitting intersect.
One method to ensure an accurate measurement is taken using an end-to-center
measurement is to make the measurement from the
a. middle of the pipe to the end of the fitting. b. end of the pipe to the center of the
fitting. c. center of the pipe to the end of the fitting. d. end of the face to the center of the
back. - ANSWER-b. end of the pipe to the center of the fitting.
To remove the burr from inside of a piece of pipe, operate the handle of a reamer with
a. short, even, counterclockwise strokes.
b. long, even, counterclockwise strokes.
c. long, even, clockwise strokes.
d. short, even, clockwise strokes. - ANSWER-d. short, even, clockwise strokes.
When using a hand threader, which factor will create damaged pipe threads?
a. Too much oil.
b. Dull or nicked dies.
c. Sharp and clean dies.
d. A pipe that is not reamed. - ANSWER-b. Dull or nicked dies.
When threading a steel pipe with an adjustable pipe die, how do you determine when
the proper number of threads have been cut on the pipe?
a. The amount of threads cut will correspond to the pipe size
b. The cutter disengages and turns freely when the proper number of threads are cut.
c. Twelve rotations of the die handle cut the proper number of threads.
d. Two newly cut threads project beyond the end of the die teeth. - ANSWER-d. Two
newly cut threads project beyond the end of the die teeth.
When threading a fitting on a pipe, what happens if you overtighten a fitting?
a. Leaks will be stopped completely.
b. The wrench you are using might break.
c. Overall pipe length decreases by 1 inch (").
d. The fitting stretches and the joint leaks. - ANSWER-d. The fitting stretches and the
joint leaks.
How much solder is needed to solder a half-inch (") connection?
a. 1/2"
b. 3/4"
c. 7/8"
d. 1" - ANSWER-a. 1/2"
EXAMS WITH COMPLETE SOLUTIONS
The benefit galvanization provides a steel pipe is it
a. makes the pipe easier to bend
b. increases pipe thickness.
c. increases pipe strength .
d. reduces corrosion. - ANSWER-d. reduces corrosion.
What is used to join black iron and stainless steel pipe sections with diameters of 2"
within newer fuel systems?
a. Threaded connections.
b. Welds and welded flanges.
c. Compression type fittings.
d. Hub and spigot connections. - ANSWER-b. Welds and welded flanges.
How do street elbows differ from standard elbows?
a. Standard elbows have male threads.
b. Street elbows have recessed threads
c. Standard elbows have tapered threads.
d. Street elbows have one female and one male end - ANSWER-d. Street elbows have
one female and one male end
Identify the smallest measurement increment on most tape measures used in our trade.
a. Thirty-second inch.
b. Sixty-fourth inch.
c. Sixteenth inch.
d. Eighth inch. - ANSWER-c. Sixteenth inch.
Which kind of tape measure can you use to determine travel when the offset angle is
known to be 45 degrees (°)?
a. Angle rule.
b. Travel rule.
c. Standard rule.
d. Plumber's rule. - ANSWER-d. Plumber's rule.
You can also measure travel if you do not have a plumber's rule by using a standard
tape measure and multiplying the distance by a. 1.114
b. 1.141
с. 1.414
d. 1.411 - ANSWER-c. 1.414
, In order to mak e accurate measurements, how do you determine the center of a fitting?
a. Read the branch, then the run.
b. Determine the angle of the branch.
c. Divide the length of the fitting by 2
d. Find where lines drawn through the fitting intersect. - ANSWER-d. Find where lines
drawn through the fitting intersect.
One method to ensure an accurate measurement is taken using an end-to-center
measurement is to make the measurement from the
a. middle of the pipe to the end of the fitting. b. end of the pipe to the center of the
fitting. c. center of the pipe to the end of the fitting. d. end of the face to the center of the
back. - ANSWER-b. end of the pipe to the center of the fitting.
To remove the burr from inside of a piece of pipe, operate the handle of a reamer with
a. short, even, counterclockwise strokes.
b. long, even, counterclockwise strokes.
c. long, even, clockwise strokes.
d. short, even, clockwise strokes. - ANSWER-d. short, even, clockwise strokes.
When using a hand threader, which factor will create damaged pipe threads?
a. Too much oil.
b. Dull or nicked dies.
c. Sharp and clean dies.
d. A pipe that is not reamed. - ANSWER-b. Dull or nicked dies.
When threading a steel pipe with an adjustable pipe die, how do you determine when
the proper number of threads have been cut on the pipe?
a. The amount of threads cut will correspond to the pipe size
b. The cutter disengages and turns freely when the proper number of threads are cut.
c. Twelve rotations of the die handle cut the proper number of threads.
d. Two newly cut threads project beyond the end of the die teeth. - ANSWER-d. Two
newly cut threads project beyond the end of the die teeth.
When threading a fitting on a pipe, what happens if you overtighten a fitting?
a. Leaks will be stopped completely.
b. The wrench you are using might break.
c. Overall pipe length decreases by 1 inch (").
d. The fitting stretches and the joint leaks. - ANSWER-d. The fitting stretches and the
joint leaks.
How much solder is needed to solder a half-inch (") connection?
a. 1/2"
b. 3/4"
c. 7/8"
d. 1" - ANSWER-a. 1/2"
