General Examination #2 plumbing Exam Questions and Answers
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Course
Plumbing
Institution
Plumbing
A plumbing permit expires if work authorized by the permit is not started within ______ days. 103.3.3 - Answer-180 days
A plumbing permit is not required _________ . 103.1.1 (2) - Answer-for clearing stoppages
The maximum units on a 2 inch horizontal waste line is _______ .Table 703.2 - Answe...
General Examination #2 plumbing Exam
Questions and Answers
A plumbing permit expires if work authorized by the permit is not started within ______
days. 103.3.3 - Answer-180 days
A plumbing permit is not required _________ . 103.1.1 (2) - Answer-for clearing
stoppages
The maximum units on a 2 inch horizontal waste line is _______ .Table 703.2 - Answer-
8
The common vent for five domestic kitchen sinks is ________ inches. 904.1, Table
702.1 and Table 703.2 - Answer-2 inches
A refrigerator may discharge into a ________ . 807.1 - Answer-floor sink
Per table 702.2 b, one fixture unit has a discharge capacity of ______ gpm. Table 702.2
b - Answer-up to 7 1/2 gpm
Gas utilization equipment connected to a piping system shall have an accessible,
approved manual shutoff valve within ________ feet of the equipment it serves. 1211.5
- Answer-6 feet
The size of a supply piping outlet for any gas appliance shall not be less than _______
inch. 1215.4 - Answer-1/2 inch
Except for direct vent appliances, a mechanical draft venting system shall terminate at
least ______feet above any forced air inlet located within 10 feet. 509.8 - Answer-3 feet
A fixture trap is vented to _______ . 1002.1 - Answer-prevent the loss of a trap seal by
siphonage or back pressure
Except for plastic piping, water piping systems may be tested with a (n) ______ . 609.4 -
Answer-air pressure test of 50 psi
A valve that has the highest friction loss to water flow is the _______ valve. 610.6 and
Appendix A, Table A3.4 - Answer-globe
Gas piping shall be tested with _________. 1213.3 - Answer-air
ABS DWV pipe installed horizontally shall be supported at intervals not to exceed
________ feet. Table 313.3 - Answer-4 ft
, Three-inch horizontal drainage piping shall have a uniform slope of not less than
________ inch per foot. 708.1 - Answer-1/4 inch
In sizing gas piping, the length used is measured from the meter location to
_________ . 1216.1.2 - Answer-the most remote outlet on the system
Where supplementary gas for standby use is connected downstream from a meter, a
______ shall be provided. 1208.3.2 - Answer-device to prevent backflow
Indoor gas hose connectors shall not exceed ________ feet. 1211.3.1 - Answer-6 feet
Soil and waste piping underground may be _______ . 701.1 (6) - Answer-cast-iron pipe
The upper terminal of each horizontal drainage piping shall be provided with _________
. 707.4 - Answer-a cleanout
The maximum number of bathtubs allowed on a 2-inch vent is _______ . Table 702.1
and Table703.2 - Answer-8
Six bathtubs and six showers require a common vent of not less than _____ inches.
Table 702.1 and Table 703.2 - Answer-2 inch
Concealed gas piping may be connected by ________ . 1210.3.1 - Answer-right and left
couplings
A _______ is not a standard fitting. 706.1, 706.2, 706.3 and 706.4 - Answer-45 degree
tee
Waste and vent pipes may be tested with a _______. 712.2 - Answer-10 foot head of
water
Gas pressure tests shall not be less than ________ . 1213.3 - Answer-10 pounds
Type B gas vents shall terminate at least _________ feet above the highest connected
draft hood or flue collar. 509.6.2.1 - Answer-5 feet
Prohibited on combination waste and vent systems are _______ . 910.7 - Answer-water
closets
Gas meters shall be located in _______ locations. 1208.6.1 - Answer-readily accessible
A water closet seat shall be sized for the _______ . 411.2.2 - Answer-bowl
The minimum size gas supply for a mobile home is ______ inch(es). 1215.4 - Answer-
3/4 inches
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