PLUMBING EXAM 1 REVISED REVISION QUESTIONS WITH
100% CORRECT ANSWERS
Architectural plans for which type of structure would be least likely to include a plumbing plan? -
Light residential
A test used mainly to locate leaks that are difficult to find is the _____. - Smoke test
In a DWV system, which of the following could be the invert elevation? - The lowest inside surface of
a sewer pipe
Rough-in measurements for fixtures are available from _____. - The Manufacturer
Sanitary drainage systems do not include _____. - Sump Pumps
Runs of drainage pipe near the roof of a structure are usually supported _____. - with a pipe trapeze
The "second rough" plumbing inspection is conducted _____. - when the above grade DWV
installation is completed.
The grade (slope) of a line of pipe is expressed in _____. - Inches per foot
The most common type of leveling tool used by plumbers is the _____. - general purpose level
Until it is tested and approved, below-grade DWV piping cannot be _____. - backfilled
Why is the general-purpose level considered the "last resort" when determining grade? - It gives the
least precise results.
Why is the line of sight provided by a transit's telescope more accurate than a string line? - It won't
sag.
100% CORRECT ANSWERS
Architectural plans for which type of structure would be least likely to include a plumbing plan? -
Light residential
A test used mainly to locate leaks that are difficult to find is the _____. - Smoke test
In a DWV system, which of the following could be the invert elevation? - The lowest inside surface of
a sewer pipe
Rough-in measurements for fixtures are available from _____. - The Manufacturer
Sanitary drainage systems do not include _____. - Sump Pumps
Runs of drainage pipe near the roof of a structure are usually supported _____. - with a pipe trapeze
The "second rough" plumbing inspection is conducted _____. - when the above grade DWV
installation is completed.
The grade (slope) of a line of pipe is expressed in _____. - Inches per foot
The most common type of leveling tool used by plumbers is the _____. - general purpose level
Until it is tested and approved, below-grade DWV piping cannot be _____. - backfilled
Why is the general-purpose level considered the "last resort" when determining grade? - It gives the
least precise results.
Why is the line of sight provided by a transit's telescope more accurate than a string line? - It won't
sag.
