PLUMBING EXAM QUESTION BANK
,What degree is used for isometric drawings? - ANSWER60 degrees
What is the recommended minimum of minutes for chlorine water management? -
ANSWER20-30 minutes
When you need to repair a single handle lavatory faucet, what needs to be replaced? -
ANSWERO ring
Galvanic corrosion of water supply piping can occur where - ANSWERsteel pipe is
joined to a dissimilar metal pipe
Whenever necessary to make an inspection to enforce any of the provisions of the
Code, an authorized representative may enter the premises - ANSWERat all reasonable
times
After completion of work and testing of sewer pipeline, who shall request inspection? -
ANSWERSupervisor of job at job-site
If the Administrative Authority requests that a new type of material be used on a project,
who pays for the testing of the new material? - ANSWERContractor
When plumbing work is inspected and a "notice of correction" is served, how many days
does the contractor have to correct the work? - ANSWERWithin 10 days
What is the vertical distance called that is between the lowest opening of a pipe fixture
or appurtenance that is discharging waste to the overflow level of a fixture? -
ANSWERAirgap, drainage
A cleanout which has direct access without the necessity of removing any panel or door
is defined to be - ANSWERreadily accessible
Distribution of water from any other source than intended is - ANSWERbackflow
Back-siphonage is defined as - ANSWERthe flowing back of used, contaminated or
polluted water from a plumbing fixture or vessel into a water supply pipe due to a
negative pressure in such pipe
The _________________________ is the pipe which carries potable water from a water
meter to a building. - ANSWERbuilding supply
Backflow is defined as - ANSWERnon-potable water or other liquids entering a potable
water system
, Any group of two or more similar adjacent fixtures that discharge into a common
horizontal waste branch is defined as a - ANSWERbattery
Which of the following connects one or more individual vents to a vent stack? -
ANSWERBranch vent
A combination waste and vent system may be installed on a
_______________________ piping system. - ANSWERhorizontal
The minimum level at which a vacuum breaker may be installed above the flood level
rim of the device and service is called - ANSWERthe critical level
The "the critical level" is shown on a backflow prevention device by a
_______________ marking. - ANSWERC-L or C/L
When a backflow prevention device does not bear a "critical level" marking, which part
of the device constitutes the critical level? - ANSWERBottom
What is the Critical Level on a backflow device? - ANSWERBottom
According to the Uniform Plumbing Code, a "cross connection" is defined as -
ANSWERa connection through which non-potable water may enter a potable water
system.
What is the name for the measurement taken along the centerline of a pipe and fittings?
- ANSWERDeveloped length
"Existing work" is defined to be a plumbing system or any part thereof which -
ANSWERhas been installed prior to the effective date of the code.
A pipe which makes an angle of not more than 45 degrees with the horizontal is
considered - ANSWERhorizontal
A horizontal pipe is any pipe or fitting which is installed in a horizontal position or which
makes an angle of less than _________ degrees with the horizontal. - ANSWER45
What statement is true about industrial waste? - ANSWERIt is free of fecal matter.
The "invert" elevation of a sewer line is the ____________________ of the pipe. -
ANSWERinside bottom
Water which is satisfactory for drinking, culinary and domestic purposes and meets the
requirements of the health authority having jurisdiction is defined as
_____________________ water. - ANSWERpotable