PLUMBING LEVEL 1 COMPREHENSIVE QUESTIONS
AND VERIFIED CORRECT ANSWERS EXAM
PREPARATION TEST 2024 UPDATE
What is the minimum size of a building sewer?
4 inches T710.1 (1) b
Minimum fall shall not be less than _____ per foot for a 2 inch pipe or _________
per foot for a 4 inch pipe.
1/4":1/8". T704.1
A pipe or a fitting which makes an angle of not more than 45° with the vertical is
considered
Vertical pipe. 202- definitions
Cleanouts in 4 inch building sewer shall not be located more than ____ft. apart
100 ft. 708.3 .2
Size of cleanouts for a 4 inch pipe or larger may be served by a _______inch
clean out
4". 708.7
Size of cleanouts for less than a 4 inch pipe ---- 4 inch, 2 inch, size of pipe or 3
inch?
Size of pipe 708.7
The pipe from the water main, water meter, water supply system or other
approved source of water supply,to the building or structure
Water service pipe
Any pipe or fitting which makes angle of more than 45° with the vertical
Horizontal pipe
The length of a pipe along the centerline of the pipe and fittings
Developed length
For applicability requirements of the plumbing code, refer to:
The plumbing code 102.1
The provisions of the plumbing shall apply to:
Installations, alterations and repairs, replacements - 101.2
The provisions of the plumbing code shall NOT apply to...
Gas fired water heater, water heater venting systems, fuel gas piping
Waste and soil pipe leaving a building shall have an earth cover ______ inches
3 inches. 305.6.1
A manhole cover in a flood hazard zone (a zone) shall be sealed unless
The manhole is elevated above base flood elevation 309.2#6
Temporary toilet facilities need not be on site for crews on a job site for no more
then which of the following?
One day 311.1
, Strainer plates on drain inlet shall be designed with openings not greater than
____
.5 " 304.2
What is the size of a sleeve passing through a wall to protect piping?
Two pipe diameters greater than the pipe 305.5
All plastic pipe, fittings and component shall be third-party certified as
conforming to which of the following?
NSF 14. 303.3
All openings around pipes, tubing, wiring, conduit, Etc. Shall be fire stopped
according to which of the following?
The building code 307.3
The top of water pipes, installed below grade outside the building, shall be:
Below the frost line or minimum of 12 inches below finished grade which ever is greater
305.6
Water piping installed in an unconditioned area shall be insulated with a
minimum R factor of:
6.50 305.6
Trenches installed parallel to footings shall not extend below the bearing the
plane of the footing:
45° 307.5
Exterior wall openings shall be made which of the following?
Watertight. 305.7
Notches at the end of joists shall not exceed:
1/4 of the depth. 307.2, F101.1
The edge of a bored hole in a stud shall be no closer to the edge than:
5/8" 307.2, F101.3
Protective shield plates shall extend at least which of the following above the sole
plate
2" 305.8
When backfilling above a pipe is complete, which of the following is the proper
depth above the crown of the pipe?
12" 306.3
When testing the water distribution system which of the following shall be used
when testing plastic piping?
Water 312.5
In toilet rooms used by five-year-olds, which of the following may be omitted ?
Toilet stall enclosures, toilet stall doors, partitions between toilets 310.4 exceptions
1 inch copper tube shall be supported vertically at intervals not exceeding:
10' T308.5
CPVC 1 inch pipe shall be supported horizontally at intervals no more than:
3' T308.5
All the piping in the plumbing system shall be tested with:
Water or air 312.1
Drainage piping when tested with water shall be subjected to which of the
following?
10 feet head of water 312.2
AND VERIFIED CORRECT ANSWERS EXAM
PREPARATION TEST 2024 UPDATE
What is the minimum size of a building sewer?
4 inches T710.1 (1) b
Minimum fall shall not be less than _____ per foot for a 2 inch pipe or _________
per foot for a 4 inch pipe.
1/4":1/8". T704.1
A pipe or a fitting which makes an angle of not more than 45° with the vertical is
considered
Vertical pipe. 202- definitions
Cleanouts in 4 inch building sewer shall not be located more than ____ft. apart
100 ft. 708.3 .2
Size of cleanouts for a 4 inch pipe or larger may be served by a _______inch
clean out
4". 708.7
Size of cleanouts for less than a 4 inch pipe ---- 4 inch, 2 inch, size of pipe or 3
inch?
Size of pipe 708.7
The pipe from the water main, water meter, water supply system or other
approved source of water supply,to the building or structure
Water service pipe
Any pipe or fitting which makes angle of more than 45° with the vertical
Horizontal pipe
The length of a pipe along the centerline of the pipe and fittings
Developed length
For applicability requirements of the plumbing code, refer to:
The plumbing code 102.1
The provisions of the plumbing shall apply to:
Installations, alterations and repairs, replacements - 101.2
The provisions of the plumbing code shall NOT apply to...
Gas fired water heater, water heater venting systems, fuel gas piping
Waste and soil pipe leaving a building shall have an earth cover ______ inches
3 inches. 305.6.1
A manhole cover in a flood hazard zone (a zone) shall be sealed unless
The manhole is elevated above base flood elevation 309.2#6
Temporary toilet facilities need not be on site for crews on a job site for no more
then which of the following?
One day 311.1
, Strainer plates on drain inlet shall be designed with openings not greater than
____
.5 " 304.2
What is the size of a sleeve passing through a wall to protect piping?
Two pipe diameters greater than the pipe 305.5
All plastic pipe, fittings and component shall be third-party certified as
conforming to which of the following?
NSF 14. 303.3
All openings around pipes, tubing, wiring, conduit, Etc. Shall be fire stopped
according to which of the following?
The building code 307.3
The top of water pipes, installed below grade outside the building, shall be:
Below the frost line or minimum of 12 inches below finished grade which ever is greater
305.6
Water piping installed in an unconditioned area shall be insulated with a
minimum R factor of:
6.50 305.6
Trenches installed parallel to footings shall not extend below the bearing the
plane of the footing:
45° 307.5
Exterior wall openings shall be made which of the following?
Watertight. 305.7
Notches at the end of joists shall not exceed:
1/4 of the depth. 307.2, F101.1
The edge of a bored hole in a stud shall be no closer to the edge than:
5/8" 307.2, F101.3
Protective shield plates shall extend at least which of the following above the sole
plate
2" 305.8
When backfilling above a pipe is complete, which of the following is the proper
depth above the crown of the pipe?
12" 306.3
When testing the water distribution system which of the following shall be used
when testing plastic piping?
Water 312.5
In toilet rooms used by five-year-olds, which of the following may be omitted ?
Toilet stall enclosures, toilet stall doors, partitions between toilets 310.4 exceptions
1 inch copper tube shall be supported vertically at intervals not exceeding:
10' T308.5
CPVC 1 inch pipe shall be supported horizontally at intervals no more than:
3' T308.5
All the piping in the plumbing system shall be tested with:
Water or air 312.1
Drainage piping when tested with water shall be subjected to which of the
following?
10 feet head of water 312.2
