Which option is atmospheric pressure at sea-level:

14.7 psi 29.92 of mercury 33.9' of water

The height of a toilet Public restroom with handicap access must be at least?

17 in, morethan 19 in from floor

Safety question: if How far distance is greater than 15 feet what is required?

safety belts and nets are required

Who do you notify when installing a gas system greater than 5 psi?

utility companu for the building

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Plumbing Test C1-D

C1-D

Question	Answer
A septic tank for a four-bedroom house must hold at Least	1200

A septic tank for a four-bedroom house must hold at Least	1200
Which of the following should be used to prevent kinks when bending soft copper tubing?	Bending Spring
which is a column of water 1 ft high exerts a pressure of?	4.33 psi
Which option is atmospheric pressure at sea-level:	14.7 psi 29.92 of mercury 33.9' of water
What is primarily used for buried or concealed piping, for oxygen piping, and for heating condensate return lines.	type k green
Which option is recommended for underground water piping	type L blue
What is used for above-ground water distribution piping in or on a building and for chilled water mains up to 1-1/4	type m red
Which option is a recommended for both above and below ground e.g., waste, soil, and vent lines, roof drainage, and building drains and sewers.	type DWV yellow
What is a drainage fitting used to remove clogs and open access to internal pipes. A cleanout is required when the aggregate horizontal change in direction is greater than 135°. A cleanout is not required on indirect waste pipes.	cleanout
Which option is unit which interrupts the continuity of electrical connection prevents electrolysis.	dielectris fitting
What is a joint in a threaded pipeline that allows movement in the direction of the line.	swing joints
Which option is a fitting used to run pipes in a "T" shape.	crosses and tees
What is a fitting with inside threads larger at one end than at the other. Used to reduce the size of the pipe.	reducers
Which option is a fitting used to change the direction of the pipe.	elbows
What is a coupling device used to join pipes.	unions
What is greater than 5 feet cast-iron must be supported every?	10 ft
Three-quarter or smaller threaded pipe must be supported every	10 ft
Which option is following 1 inch or larger threaded iron I must be supported every?	12 ft
Which is inch and a quarter or smaller copper tubing Must be supported every?	6 ft
How many feet of plastic pipe should each support?	6 ft
What is the minimum distance that urinals should be from a partition or sidewalk?	12 in
How many inches should a urinal be from center to center compared to another similar make?	24 in
How many inches cannot the water seal be less than for a P trap?	2 in
What type of waterproofing should be done using approved joints on the roof around pipes?	flashing
What is the maximum allowed rate of flow through the grease trap?	55 gpm
When using compressed air to test a water system, what is the minimum amount of hot and cold water piping that should be tested?	50 psi, 15 min
What is the maximum distance permitted between manholes?	300 ft
What is the minimum allowed slope for a 3" horizontal drain pipe?	1/4 in
The height of a toilet Public restroom with handicap access must be at least?	17 in, morethan 19 in from floor
What should the handicap sink be like?	wrapped drain pipe
What color spray Is used to mark Sewer?	green
What color is sprayed to mark water?	blue
What color is sprayed to Mark gas?	yellow
What color is sprayed to mark reclaimed water?	purple
Which option is Gas piping should be tested at?	10 psi for 15 min
Safety question: if How far distance is greater than 15 feet what is required?	safety belts and nets are required
Where does the homeowner begin to be responsible for gas piping?	after the meter
In an island vent what type of fitting would be used that is not used in a wall installation?	cleanout
What should you do if the waste line is connected to the closet bend?	use factory wrapped black iron
What is the minimum porosity for a drain field on a septic system?	2.50 gal per sq ft
What should be installed when a contractor installs a fixture	p-trap
What is the minimum distance for access to a 1-1/2" cleanout?	12 in from floor
A special vent is used half way up a 10 story building to help with venting. What is this type of vent called?	yoke vent
A contractor finds an old wall-hung trough urinal and a pedestal trough urinal when she is remodeling an old building. What should the contractor do?	replace both urinals
Who do you notify when installing a gas system greater than 5 psi?	utility companu for the building
here do you put the gate valve on an ejector?	after the check valve
How many supports do you need for 4- inch ABS pipe that is 20 feet long?	5 (every 4 ft)
There is a purple pipe in the ground leading to a house. For what is the pipe used?	reclaimed water
A floor drain is required for a public bathroom that has:	2 toilets
When a temperature relief valve discharges outside, the pipe should be:	not threaded, not trpped
Why must you contact dig alret before excavating?"	to determine underground utilities
Thrust blocks must be installed in yard piping at every?	change in direction
Seismic gas shut-off valves must be installed?	after the gas meter
The temperature should have a maximum release pressure relief valve for a water heater on a temperature and temperature of ?	210F
Handicap restrooms should have?	48" space in front of toilet, wrapped drain pipe, level handles on faucets
What materials are allowed to be used for gas piping?	PE, Steel, copper
What is the proper pipe design for an island sink?	45, 90, 45
What causes a flushometer to run constantly?	diaphram is fualty
What causes a flushometer to run constantly?	diaphram is fualty
Which of the following is the strongest copper	type k green
What materials are used for vents?	cast iron, plastic, brass, copper, galv steel
How far do you open the valve of an acetylene bottle?	3/4 of a turn
What should you do with an abandoned septic tank?	drain and fill with sand, gravel and approved matr
All indirect wast piping that requires an air-gap shall discharge into the building drainage system through?	a drainage air gap of 1 in dia
Which option is Except for refrigeration coils and ice making machines, the minimum size of the indirect wast pipe shall not be smaller than the drain on the unit and not smaller than _______ inches	1
Which option is a floor drains in walk in coolers shall discharge through an air-gap or air-break	separate drainage line discharging into an outside receptor through an air gap or air break
What is a drains, overflows, or relief pipes from a water distribution system shall discharge to the building drain by?	indirect waste by means of a water distrobution air-gap
Which is Stills, sterilizers, and similar equipment requiring waste connection and used for sterile materials shall be?	indirecty connected by means of an air-gap
Which option is devices that are not regularly classified as plumbing fixtures, but which have drip or drainage outlets, shall be drained by?	indirecty waste pipes dicharginhg into an open receptor through an air gap or air break
What is no plumbing fixture that is receiving discharge from indirect waste pipes shall be installed until first approved by the?	auth having jurisdiction
The developed length from the fixture outlet of a bar sink to the receptor shall not exceed ______Feet?	5
Which is approved for proposed use, shaped and sized to prevent splashing or flooding, located where they are	all receptors receiving the discharge from inderect waste piping shall be
What is a standpipe for a clothes washer shall have a minimum and maximum length of ?	18 in and 30 in
What is an indirect waste receptor that will not be installed?	toilet
Which option is following no drain, overflow, or relief vent from a water supply system, or any other discharges under pressure shall be discharge to the drainage system?	by direct connection
What is a domestic dishwashing machine shall be connected to the drainage system by using?	an approved air-gap fitting
What can happen if drinking fountains are installed?	inderect waste
Which option is a Water having a temperature above ______ shall not be discharged under pressure directly into the drainage system?	140 f
Which option is a every indirect wast interceptor receiving discharge containing particles that would clod the receptor drain shall?	have a reedily removal beehive strainer
Which is _____ Shall not be used for chemical or industrial waste that requires pretreatment?	copper tube
What is lead waste pipe that may receive discharge containing acid or corrosive chemicals, and each vent pipe connected to it, shall be no less than _____ wall thickness?	1/8 in
When ever practical, all piping receiving chemical waste shall be?	readily accesable
Which option is the owner shall make and keep?	permenant record of the location of pipe carring and venting chemical waste
What is intersect vents for other services?	no chemical waste vent shall
Which option is no chemical waste vent shall?	intersect vents for other services
What is no chemical waste shall be discharges without?	approval of the auth having jurisdiction
Which is water lifts, expansion tanks, cooling jackets, sprinkler systems, drip or overflow pans, and other similar devices that discharge clear waste-waster into the building drainage system shall?	discharge through an inderect waste
What is pipes carrying wastewater from swimming or wading pools, including pool drainage, backwash from filters, and discharge from pumps shall be?	installed as an indirect waste
When discharged into the drainage system, condensate shall drain by means?	inderect waste pipe
Which option is condensate or wastewater shall not drain over?	public-way
What is an approved plumbing fixture or disposal area collected and discharges	condensate from fuel burning condensating appliances shall be linked and discharges
Which option is if the trap from a sink located in a car cannot be vented, ______.	the drain shall discharge through an aia-gap or air-break into a appr recepter that is vented
How is the minimum size condensate waste pipe from a 12 ton refrigeration?	3/4 in
Which option is air conditioning condensate waste shall not connect indirectly through an air-gap or air-break?	floor drain
The amount of heat energy required to raise the temperature of 1 Lbs of water by 1 degree F is referred to as a ....	BTU
The maximum operating temperature and pressure of a low-temperature high mass cast iron hot water boiler is…	120 c (250f), 30 psi
What is the maximum operating temperature and pressure of a low-temperature low mass copper or steel tube hot water boiler?	120 c (250f) 160 psi)
The most common steel pipe schedule found in heating systems is?	sch 40
Piping and fittings under 2" are commonly made from ____ and ____in a hydronic heating system?	steel and malleable screwed fittings
Max pressure rating of malleable screwed fittings and standard weld fittings?	150 psi and 150 psi
Pump headers, fire protection systems, and high-pressure oil are applications where it would be best to install a rigid grooved pipe clamp instead of a flexible clamp that may cause deflection.	TRUE
Ridged grooved clamps are similar to flanged or welded joints in the way they require less support, than a system made with flexible grooved couplings?	TRUE
Proper gasket selection is not a concern with grooved pipe couplings and fittings.	FALSE
What advantage would grooved pipe have over screwed pipe?	every joint installation is a union
Copper types that are currently used in the industry and approved for hydronic heating system?	Type, K, M and L
Copper piping has less resistance to oxygen corrosion and more resistance to flow than steel piping.	FALSE
What do PEX pipe and PEX-AL-PEX have in common when used in hydronic heating systems?	Both are oxygen barrier
The way a Gravity system and a forced flow system deliver water throughout the system is by?	convection currents and cirrculated water
Gravity hydronic systems require_______ to supply sufficient hot water?	Photographs
A one pipe system has better heating efficiency than a two pipe system?	TRUE
Two types of forced hot water heating systems are two pipe systems and series loop systems.	TRUE
Cushion tanks and Expansion tanks have the same purpose. Cushion tanks are a completely closed tank, while Expansion tanks are open to the atmosphere and allow air to escape	TRUE
The inside of a Mono-flow tee works by using the venturi effect:	TRUE
Series loop baseboard systems are mainly used in this application because of the limited amount of BTU's they can provide	Residentual
One advantage that a series loop and One pipe system have over Two pipe systems is?	Less pipe and fittings
The system where each transfer unit can be individually controlled?	one pipe system
Circuits in this system are approximately the same length so that each heat transfer unit can provide equal heating	reverse return system
A valve that is normally closed and allows for flow in only one direction.	check valve
Good choices for a hydronic heating isolation valve include?	ball valve and gate valve
The spherical ball inside a two way ball valve is?	a ball with a hole
To completely open or close a ball valve you rotate the handle how far?	1/4 turn
The valve you would install to correct unequal friction loss from unequal circuit length's?	balancing valve
A Diversion tee is another name for a Mono-flow tee.	FALSE
The best choice for a Balancing valve configuration is?	Globe
Balancing valves can be installed to dial in the flow on?	Return
When installing a bypass between supply and return headers it can be controlled with?	differentual pressure regulater valve
The type of radiator valve you would use on a forced circulated hydronic heating system?	disc type
Which type of valve would you use to prevent unauthorized using?	lockshield valve
A Thermostatic radiator valve is which type of design?	liquid filled
What type of thermostat would you choose to install with a normally open zone valve on a hydronic heating system?	reverse acting thermostat
When a thermostat has been turned up and calling for heat, the energized power signal to a normally closed zone valve would?	open the zone valve
Zone valves that come with end switches are connected to which circuit?	boiler control circuit
When is it very important to remove air from a hydronic heating system?	during the initial start up
When installing air scoops, it is important to have a straight run of piping on the....	out of the air scoop
Two places where air removal devices are most needed ,this is also the places where air is removed from water the easiest.	high temp or low pressure
The Gas that needs venting the most in a ferrous boiler and piping system is?	Nitrogen
To draw hot water from below the top of the tank, a boiler fitting utilizes a?	Dip tube
When water goes from the supply piping into the increased size of an air scoop it creates?	leow water velocity
An excellent place to connect the make-up water line to a hydronic heating system.	line scoop to cushion tank piping
The Design of coupling you want to select in a hydronic heating system to avoid trapped gases?	eccentric, flat side up
To Avoid gasses trapping in your branch piping, this is the best branch method of installation.	from the top of the pipe ot at 45 degrees
When the circulator is not running, this valve stops convection currents.	pressure system
The heat added to any form of matter that does not change temperature but does its physical state is called?	latent
How many BTUS of latent heat must be added to 10lbs of water to change to steam?	30lbs x 330 BTU/lbs=91000 BTU
To heat 100lbs of water from 40degrees F to 120 degrees F would require how many BTU?	3000 btu
Heat would be described as?	heat always flows from the hotter object to the cooler
Water is most dense at?	39.2 F or 4 C
What be the likely cause of a boiler to over pressure?	ruptured diaphram in a bladder type expan. Tank
Using the rule of thumb for a bladder style expansion tank, what size of tank would be required for a heating load of 387,000 BTUH? 387,000/7000?	55 gal
The type of boiler can be used for space and domestic water heating is known as?	dual purpose heater
What is the height restriction for an indirect fired blow through unit heater?	12 ft and under
As water is heated its volume?	increases
An imperial gallon of water weighs 10lbs, How much does 18 cubic foot of water weigh?	18 cu ft x 6.24 = 112.32 imp gal x a0lb/imp gal=1123.2
ASTM stands for The American Society for Testing and Materials ?	TRUE
Boiler trim falls under section six of the ASME code?	TRUE
100 Boiler Horsepower is equal to ______ BTUS?	3347500
The ___________ is the amount of heat lost in BTUs through 1 sqft of a combination of materials ...?	u-value
A British Thermal Unit is?	amount of energy required to raise 1 lb of ater 1 f in 1 hour
A wall 8x10 has a combined R Value of 75 What is the U Factor?	1/75=0.01333
What is found on a safety high limit control that is not found on an operating control?	manual reset
All boiler make up water must be protected from cross connections by the means of ?	RP and approved backflow preventer
What does ASME Section 4 say about boiler drain valves?	See sheet
Draw through unit heaters can be installed in ceiling areas over 12 in?	TRUE
The heating system that is described as "First Supplied Last Returned?	reverse return system
If a boiler has an input of 196000 and is 93% efficient, what is the output?	182280.00
he amount of fuel consumed by a boiler is known as the ?	input
Boilers are manufactued as either high mass or low mass?	TRUE
Radiant ceiling panels are available in 2 forms?	modular and linear
Water will change to steam at what temperature?	212f, 100c
Diaphragm tanks are used to take up compression of the water in a heating system?	TRUE
Dark rough surfaces will absorb radiant heat?	TRUE
Guides and anchors are devices used to control expansion and contraction on piping systems?	TRUE
A wall is 8x10 and has a U Factor of 0 036, ODT is - 27F and IDT is 70F. What is heat loss?	(8x10)x0.036x97=279.36
A wall is 10x10 and has a combined R Value of 20 ODT is -23F and IDT is 70F? What is the heat loss?	???
The major disadvantage of a one piping system is?	than first
What is the clearance to combustibles on a single walled pipe	single - 6 in
The purpose of a globe valve is to?	balance and regulate flow
The best location for the expansion tank on a hot water boiler is upstream of the circulator?	TRUE
If the heat loss in a room were 4000BTUH and the heat output of the fin cabinet was 458 BTUH/HR/FOOT?	4000/458=8.73
Convection is the transfer of heat to an abject without heating the intervening space?	FALSE
Fresh air ducts must be ____ for their entire length?	insulated
What is the flow required for an 186,000 BTUH input boiler with a supply/return T of 17F?	gpm=186000/(8.33x60)x17+21.89 gpm
If you installed 750' of steel pipe on a day that was - 32F and next day was 20F. How much expand?	???
If two pumps at 20 GPM each are hooked up in series, the flow will increase to 40GPM?	FALSE
If the suction and discharge gauges on pump both read 12psi when pump is not running , the pump can lift 40 ft/hd what will the discharge gauge read when the pump is running?	29.32
Shiny or bright coloured surfaces will?	reflect
What is the optimal velocity of water in heating system?	2/4 ft/s
What section of the ASME code do high temp boilers fall under?	one
High temp boilers are usually gross rated?	TRUE
How do you control the heat output of finned tube baseboard?	adj the damper
What is the height restriction for an indirect fired blow through unit heater?	no higher than 12 in
Draw through unit heaters can be installed in ceiling areas over 12'?	TRUE
Radiant ceiling panels are available in which two forms?	modular and linear
How is baseboard radiation rated?	btu/hr/lin foot
Baseboard should be located where in a house to counter the areas of greatest heat loss?	outside walls and under windows
Flow rates and supply temperatures: Both contribute to different BTU outputs of heat emission units?	TRUE
Baseboard radiation mostly creates which type of heat?	convection
If you wanted a Cast iron radiator installed in your room but were concerned with dust which Cast iron radiator would you choose?	solid type
What is the smallest diameter of pipe that should be used for floor drain waste lines?	5 in
What color is the stripe of the thickest walled (Type K) copper tubing?	green
A sanitary tee may be used to change the direction from:	horizantal to vertical
What is the main reason for using thick wall as opposed to thin wall copper pipe?	more durable
Soil, waste and vent piping above ground within buildings over deleterious fill may be:	Look up
Which of the following is LEAST true?	elbows have female threads on one end
How much, if any, increase is necessary in the size of a waste pipe when a shower head is installed over a bathtub?	none
Cast iron soil pipe cannot be:	threaded
A rotating cartridge faucet is also called a:	waterless faucet
The usual method for a plumber to thread copper pipe is:	by hand
Cesspools cannot be constructed of:	redwood
Screw-type drainage fittings are preferred over straight threaded fitting for urinal drains because:	inlets and tapped with a pitch of 1/4 in per ft
brass pipe in marked with black to ID	TRUE
What color is the stripe of the thinnest walled (Type M) copper tubing?	red
Copper tube and fittings used for drainage and vent piping installed above ground must be at a minimum:	type dwv
The fittings for galvanized drainage, waste and vent pipes must be:	the recessed type
Which type of valve has the highest friction loss to water flow?	globe valve
Which of the following materials is considered semi-ridgid?	type L copper
Why must a joint be cleaned after brazing?	th remove flux which may corrode tube
What is the recommended torque for a 2" flanged pvc pipe?	20-30 ft pounds
What effect does the cutting of threads have on PVC pipe?	threaded pvc will not withstand strain
Any pipe 2-1/2" or more in diameter has _______ threads per inch.	8
What is the fitting called that is required to join two ends of threaded pipe that cannot be rotated?	unions
Horizontal lead joint cast iron soil pipe exceeding five feet in length may be supported at not more than ____ ____	10 ft
One square meter equals:	100 decimeters
Gas piping materials cannot be:	100% copper
Which one of the following is NOT a standard fitting?	45 degree tee
When PVC pipe delivery is made what should the inspector look for before signing the invoices?	vissually inspect the end for cracks or deteriation
Which of the following is least true?	the rigid hard temper capper tubing used for hot and cold water comes in 2 thicknesses
How many grades of wall thickness does the soft temper tubing come in?	2
If the screwed fitting is carefully started on the teflon covered threads of the PVC pipe, how far must it be tightened to make the joint leakproof ?	hand tight with additional 1/4 to 1/2 turn
What color is the stripe of the medium walled (Type L) copper tubing?	blue
How many threads per inch does a 3/8" pipe have?	18
Which of the following is most false?	brass and copper pipe have a slightly rougher inside surface than steel our wrought iron pipe
Piping used to convey corrosive gases may be:	galv steel
Plastic pipe, tubing and fittings used for the installation of gas piping shall be joined by:	heat- fussion, slvent cement, adhesive methods
Vertical plastic pipe shall be supported at the following intervals each:	story
Pipes 1" to 2" have how many threads per inch?	11-1/2threads
A three-way ground key valve would be used in which of the following?	spraying and dusting eq
When a power threader is used for cutting threads on PVC pipe, what are some of the requirements for setting up the machine?	the dies should have 5 degree neg front rack
The maximum working pressure of 6 in. PVC Schedule 40 pipe is:	190 ps1
On an old style flush type water closet, what is the capacity of the water storage tank?	6 gal
What is the minimum seal depth on a trap?	2-4 in
The best method for cutting PVC pipe is using a:	miter saw
If a plumber is called out to make repairs to an electric hot water heater in the bathroom, which of the following is the probable solution?	check for power, if not turn on
Where is an earthquake safe valve installed?	in front of the shut off valve for gas
What method of sealing is used in the joints of the PVC pipe called E-Z seal?	U shaped elastomeric gasket
On a new style flush type water closet, how much water does it take to flush?	3-1/2gal
What is the minimum size vent you may use on a water heater?	3in

When installing a water softener and the water supply piping for the inlet is 1 inch, the outlet would be no less than:	1-1/4in
Which of the following is the probable reason that pressure fluctuates in an old house?	water is being used at 2+ locations at the same time
ULF (Ultra Low Flush) toilets use ____ gallons of water or less?	1.6
If a plumber is called out to make repairs to a gas hot water heater in the bathroom, which of the following is the probable solution?	replace with electric heater
Plastic pipe and fittings to support the weight of plumbing fixtures is permitted, providing:	fixture not more than 12 lbs, single family residance, and prior appr from plumbing inspc.
What type of tool is best for applying cement to the joint of a PVC pipe?	pure bristle brush
Which of the following is LEAST true? (Joints in clay pipe or between such pipe and metal pipe where permitted). One method of jointing clay pipe is:	molded rubber coupling jiont
The maximum working pressure of 3/4 in. PVC Schedule 80 pipe is:	320psi
What is used to guide the rod of a power sewer auger when it is inserted into a sewer?	J-tube
The decomposition point of PVC pipe is:	401 f to 411 f
Plastic pipe, installed horizontally, shall be supported at not to exceed:	4 ft intervals
All waste and vent piping must be tested with:	10 ft head of water
A horizontal waste line may be connected to the vertical section of a waste stack by using:	a single sanitary tee
Fixture unit value as load factors for special fixtures are determined by:	the size of the fixture trap
A shower drain has what minimum size for a trap?	2 in
For a low pressure air test (IAPMO is 16-84), what psi pressure is used and how long should the drainage system hold it without leakage?	5 psi for 15 min
The acceptable fitting for connecting a horizontal drain line with other horizontal drain lines is a:	combination wye and 1/8 bend
Plastic pipe, installed horizontally, shall be supported at not to exceed:	4 ft intervals
A building sewer when connected to a septic tank may be considered and sized as a building drain if the developed length does not exceed?	10 ft
A pedestal urinal requires what minimum size traps?	3 in
The minimum and maximum height of a clothes washing machine stand-pipe receptor shall be:	18-30 in
What is the minimum seal depth on a trap?	2-9 in
A shower drain has what minimum size for a trap?	2 in
A bathtub drain has what minimum size for a trap?	1-1/2in
Access to concealed plumbing fixtures having slip-joint connections shall be at least:	12 in x 12 in
The main reason cast-iron pipe is used for underground service is:	that it can resist corrosion
Waste pipe conveys the following waste except:	fecal mater
Corrosive acid can flow through?	ceremic glazed or unglazed vitrified clay pipe
Where it is necessary to install a pipe to carry rainwater located under a sidewalk to a street gutter, the minimum concrete cover over such pipe shall be:	2in
Each grease interceptor shall have an approved water seal of not less than ______ in depth or the diameter of its outlet, whichever is greater.	2 in
What is the maximum number of residential sinks that may be used with a 2-1/2" vent pipe?	24
The minimum diameter of any non-metallic building sewer shall be:	4in
A dilution tank is required for corrosive waste which has a pH of:	4.5
The maximum fixture(s) on a 2" trap is/are:	1
All waste and vent piping must be tested with:	10 ft head of water
What type of material is normally not in a drainage system?	type L copper tube
Air conditioning equipment may discharge directly or indirectly into:	rain water leaders, a vent stack, a fixture tailpiece
Water closets shall be secured to the floor with	brass
One fixture unit is equivalent to:	1 7-1/2 gal of water
The maximum working pressure of 3/4 in. PVC Schedule 80 pipe is:	320 psi
Five kitchen sinks would require a sanitary vent the size of:	2 in
Interceptors for sand and similar heavy solids shall be so designed and located as to be readily accessible for cleaning and shall have a water seal of not less than:	1 in
The decomposition point of PVC pipe is:	401 f to 411 f
Building sewers or drainage piping constructed of materials which are not approved within a building shall not be run or laid in the same trench with water service pipes or any underground water pipes:	unless the water pipe shall be placed on a solid shelve exavater at one side of the commonn trench, or unless the bottom of the water pipe at all piontsis 12in above the pipe
A 2" sanitary tee will serve:	16 kithen sinks, 4 pedestal sinks or 25 floor sinks
When shoring a trench, workers must be protected in excavations with a minimum depth of:	5ft
Trap cleanouts are prohibited on:	concealed traps
Cleanouts may be omitted on a horizontal drain line less than 5 feet except for:	sinks
The ease of paint combustion is measured by:	its flash piont
The use of mechanical excavating equipment is prohibited within:	2 ft of exsisting piping

Created by: j.walters

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