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JOURNEYMAN OIL BURNER QUESTIONS AND ANSWERS 2024 #14
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JOURNEYMAN OIL BURNER QUESTIONS AND ANSWERS 2024 #14
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JOURNEYMAN OIL BURNER QUESTIONS AND ANSWERS 2024 #141/4" - correct answer Threads of drainage fittings shall be tapped as to allow _____
pitch per foot
4 lbs - correct answer Lead used for safe pans shall not be less than ________ per
square foot
Copper Tube, Cast Iron, Stainless steel, ABS, PVC DWV - correct answer Name 3
allowable materials for the DWV system "underground"
1-1/4" - 1 dfu's
1-1/2" - 3 dfu's
2" - 4 dfu's
3" 6 dfu's
4" - dfu's - correct answer What are the fixture unit values for the following traps
Double fixture fitting - correct answer What type of fitting is used for continuous waste
and venting of lavatories back to back?
1" - correct answer Caulk joints for cast iron bell and spigot shall be filled with molten
lead to a depth of not less than ________?
Wye, Combination Wye w/ 1/8 bend, Long sweep - correct answer What type of fitting
or fittings can be used to connect horizontal drainage to another horizontal drainage
line?
- Each horizontal drainage pipe shall be provided with a cleat at its upper terminal
- Horizontal run more than 100'
- Each horizontal change of direction exceeding 135°
- Front Main Cleanout - correct answer Cleanout locations required by code
100' - correct answer Maximum distance a cleanup can be spaced apart
12"
18" - correct answer Minimum clearance in front of a cleanup for 2" or less
Minimum clearance in front of a cleanup for 2" or more
20' - correct answer Underfloor cleanup shall not be located more than _____ from an
access door, trap door, or crawl hole
Back Water Valve - correct answer When plumbing fixtures are installed on a floor level
lower than the next upstream manhole cover of the sewer, such drainage piping shall be
protected from backflow of sewage by a ____________
,20 - correct answer Sewage ejectors receiving the discharge of water closets or ruinals
shall have a discharge capacity not less than ___ gallons per minute
2" - correct answer What is the minimum size discharge pipe for an ejector installed in a
single dwelling?
2" - correct answer The lowest inlet connected to the ejector pump shall have a
clearance of not less than ____ from the high water or starting level of the sump.
Yes, with prior approval of the AHJ - correct answer Can macerating toilet systems be
installed instead of a sewage pump system
3/4" - correct answer What is the minimum size discharge pipe for a macerating toilet
system
1/4" per foot - correct answer What is the minimum pitch required fora 2" horizontal
drain?
Swing check valve - correct answer The discharge line from an ejector pump shall be
provided with an accessible ___________ and gate or ball valve.
Downstream of the backwater valve - correct answer Where shall the gate valve be
located on the discharge line on an ejector pump
8' - correct answer Drainage connections shall not be made into a drainage piping
system within ________ of an vertical or horizontal change in direction of a stack
containing suds producing fixtures.
10' Head of water for 15 minutes
5 psi for and air test - correct answer What are the requirements when testing the DWV
system Water and Air?
When the dwelling is more than 200' away from the sewer. - correct answer When is the
public sewer considered not being available?
2' away from the building - correct answer At what point does the building sewer begin?
DFU's - correct answer How is the size of the building sewer determined?
300' - correct answer What is the maximum distance allowed between approved
manholes?
12" - correct answer When a water pipe and sewer pipe are placed in a common trench
what is the minimum distance above the top of the sewer line to the bottom of the water
pipe?
, 12" - correct answer When a water pipe and sewer pipe are placed in a common trench
what is the minimum clear horizontal distance the water pipe shall be from the sewer
pipe?
By taking 80% of the total DFU's = 173 DFU's - correct answer A 4' drainage line has to
be run at a pitch of 1/8" per foot. How is the maximum fixture unit low now determined?
Provide minimum requirements and standards for the protection of the public health,
safety, and welfare. - correct answer Purpose of plumbing code.
Capped - correct answer Openings into drainage or vent system excepting those
opening to which plumbing fixtures are properly connected or which constitute vent
terminals shall be permanently plugged or _________ in an approved manner.
Owner or owners agent - correct answer Who is responsible for maintaining the
plumbing and drainage system in a building?
Work or systems that have already been installed prior to the effective date of the
existing code. - correct answer What is meant by the term "existing work"?
Blockages or leaks - correct answer What type of work is exempt from a plumbing
permit?
180 Days - correct answer If work is not started, how many days is a permit valid?
After it has been tested, inspected, and approved - correct answer When can plumbing
work be covered and concealed?
Person with the permit, doing the work - correct answer Who notifies the authority have
jurisdiction when plumbing work is ready for inspections?
Prevent siphonage - correct answer What is the purpose of a vacuum relief valve
To slow corrosion of the inside of the tank - correct answer What is the purpose of the
anode rod?
To send cold water to the bottom of the tank - correct answer What is the purpose of the
dip tube?
To prevent siphonage and back pressure on the dip tube. - correct answer What is the
purpose of the anti-siphon hole?
When the water temperature drops below a set temperature the immersion element
turns on to reheat the water. - correct answer Explain how the electric immersion
elements work on an electric water heater.
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