Plumbing Year 2 Midterm

Mobile home or modular building manufacturers when the homes are not installed within the State of Idaho, Owner of a home or duplex, Excavation contractors, Companies that install water softeners only, Building maintenance people who work for the company that owns the building, Processing plants not connected to city services and outside city limits, Logging or mining camps, Owner of farm buildings

Exceptions to requiring a certificate of competency include:

Accessible

Fixture connections that require the removal of an access panel for servicing are considered ______.

0 ; 2

Floor drains can be either ______ fixture units (emergency) or _____ fixture units for non-emergency (normally used).

The approval shall have no effect beyond that AHJ boundary

If an AHJ permits an "alternative engineered design." _______.

20

If you have a right triangle with legs that measure 12 inches and 16 inches, the third leg will have a length of ____ inches.

equal to the run

In a 45-degree offset, the length of the rise is _____.

The lowest inside surface of a sewer pipe

In a DWV system, which of the following could be the invert elevation?

10

In a rolling offset where the rise is 6 feet and the roll is 8 feet, the true offset with be ____ feet.

False

In a rolling offset, the run of pipe begins at one plane and ends up in the same plane (True/False)

Building code and this chapter

In addition to meeting the requirements for firestop protection in this chapter, the protection of the penetration must meet any additional requirements in the _______.

30

In an isometric drawing, all vertically, and all horizontal lines are projected at a _____ degree angle.

Spread

In parallel simple offsets, ____ is the distance between the center lines of the pipes.

Travel

In piping terms, the longest side of a right triangle is referred to as the _____.

False

It is permitted to drill and tap a vent pipe to connect an indirect waste pipe (True/False)

Complying with the bonding provisions required

It shall be unlawful for any person, company, corporation, etc. to install or alter plumbing within the State of Idaho without:

permit

No installation, alteration, improvement or extension of any plumbing system within the State of Idaho shall be started without first obtaining a _____ from the division of building safety.

Any lot other than the lot that is the site of the building served by such facilities

No plumbing system, drainage system, building sewer, private sewage disposal system, or parts thereof, shall be located in ______.

Disagree

Once a building begins to be remolded, all plumbing contained with said building shall be made to comply with current codes (Agree/Disagree)

Revisions or change orders

One construction is underway, modification to the plans are submitted as either ______.

2 ; 2 ; 5

One gallon-per-flush integral trap public urinals need a ______ inch trap arm and drain, are rated at ______ fixture units. Assembly urinals are rated at _____ fixture units.

Liquid waste & sewage facilities, Water heaters, Water treating & water using equipment attached to a plumbing system, Water supply systems distribution & disposal pipes of any premises, Building drains & building sewers, Soil, waste and vent pipes, Plumbing fixtures, interconnecting systems pipes & traps, Sanitary & storm water drainage facilities

Parts of a plumbing system include:

Cast - in - place fire -stops

Penetrations in fire-rated concrete floors are often sealed with ______.

relocated to avoid interference

Piping, fixtures, or equipment that are installed so that they interfere with normal operation and use of windows or doors shall be ______.

Location of walls

Plumbing drawings do not show _____.

None of the above are true

Plumbing systems may be covered prior to inspection only if _______.

Top Left: 154,110 Bottom Right: 254,138

Point & click on the "run" part of the offset.

Top Left: 166,32 Bottom Right: 223,89

Point & click on the part of the offset that is the "travel"

Concealed

Prior to being ______, piping penetrations shall be inspected by the Authority Having Jurisdiction to verify compliance.

Architects or Engineer

RFIs are issued to ______.

$50 ; 5 years

Registration fees for plumbing apprentices are ____ dollars and is valid for ____ years.

Points out an error on, or question about, the plans

Request for Information (RFI)

False

Riser diagrams are frequently included on architectural drawings (True/False)

2

Rolling offsets form ____ right triangles.

The entire can be shown on one page

Site (or civil) plans are drawn using a small scale so that _____.

18

The clearance required in front of a 2 inch cleanup shall not be less than _____ inches.

5 ; 3

The plumbing board will consist of _____ members and each will serve for ____ years.

7 7/16 inches

The true offset for an installation with a rise of 5 5/8 inches and an offset of 4 7/8 inches is ____ inches.

True Offset

To find the run in a rolling offset, multiply the ____ by the constant for the fitting angle.

The fitting allowance x2

To properly calculate the length of pipe needed to make an offset, what information must be obtained and subtracted from the travel?

6 inches

What is the closest distance a hole can be drilled to the end of a joist?

C^2 = A^2 + B^2

What is the formula for the Pythagorean theorem?

True

When an existing building changes use or occupancy, all plumbing systems within must be brought into compliance with current codes (True/False)

Civil Drawings

When installing building drains & sewers, in order to ensure proper connections and to avoid damaging existing lines, you should first refer to the _____.

Isometric drawings ; Plumbing plans

When preparing a material takeoff, you will be able to determine the correct number of items to order for the plumbing installations by referring to the _____ & ______.

16 ; 8 ; six unit trap ; 24

2 inch pipe is rated at _____ fixture units vertically, and _____ fixture units horizontally. 2 inch cannot be used to drain a _______. Its rated at ______ fixture units for venting.

35 ; 48 ; 3 ; 4

3" pipe can handle up to _____ fixture units horizontally, _____ fixture units vertically, but only _____ horizontally and _______ toilets vertically.

216 ; 172.8 ; 256 ; 256

4" pipe, sloped at 1/4" per foot is rated at _____ fixture units, but at 1/8" per foot its _____ fixture units. Run vertically, it's rated at ______ fixture units. As a vent, it can handle ______ fixture units.

Specialty journeyman

A ______ is a non-plumber is who can legally perform a specific plumbing job of task.

Shape of the building site, the building location, and planned structures

A civil drawing shows the ______.

All Service Jacket

A facing material that is applied to insulation by the manufacturer is called an ______.

Eslastomeric Cellular Thermal Insulation

A foam insulation material that expands and contracts in response to stress or temperature changes and quickly returns to its original dimension is called _____.

150

A horizontal drain pipe has an existing load of 30 fixture units, after connecting the discharge pipe from an ejector rated at 60 gpm, the total load on the horizontal drain pipe will be _____ fixture units.

Combination waste and vent

A horizontal drain that is sized to provide free movement of air above the flow line of the drain is called a ________.

Material Takeoff

A list that includes all fixtures, pipe, fittings, and other items needed for a project, as well as cost estimates, is called a ______.

Structural Pentrations

A modification to structural member in the form of notching, drilling, or boxing is called a _____.

Vertical

A pipe that makes an angle of not more that 45 degrees with the vertical is considered _______.

Yes

A rein spection fee may be levied if multiple trips are needed by the AHJ prior to approval (Yes/No)

26 5/16"

A rolling offset, using 45s, has a rise of 11" and a roll of 15". What is the CC measurement of the offset?

100

A straight run of building sewer will require clean outs at intervals not to exceed _____ feet.

Continuous vent

A vertical vent that is a continuation of the drain to which it connects is a ______.

True

According to 54-2621, it is legal to remove a p-trap to snake a drain without obtaining a plumbing permit (True/False)

Indicates a change in the plan before the project has been bid

Addendum

unsafe ; insanitary ; overloaded

Additions or alterations to existing plumbing systems shall not cause existing systems to become _____, ______, or ______.

accepted engineering practices

All design, construction, and workmanship shall be in conformity with _______.

all of the above

All pipe, pipe fittings, trips, fixtures, materials, and devices used in plumbing systems shall be _______.

Have a journeyman plumber's license, Be fully familiar with the plumbing codes, Have not less than 5 years experience in the plumbing trade

All plumbing inspectors within the State of Idaho shall have the following qualifications:

Disagree - 1 year

Any person whose certificate of competency has been revoked may apply for a new certificate after a period of 3 years (Agree/Disagree)

Surety Bond ; $2000

Any person, firm, partnership, association, or corporation making water treatment installation and/or repairs in accordance with provisions of this chapter shall maintain a _____ in the amount of _____.

Light Residential

Architectural plans for which type of structure would be least likely to include a plumbing plan?

1 ; 1-1/4

Assembly lavatories are rated at ______ fixture units and require a minimum ______ trap size.

A reduction in fixture unit loading allowance

Because of structural conditions, a 4-inch building drain is installed with a slope of 1/8 inch per foot. This installation will result in _____.

True offset

Before you can use constants to find the travel or run in rolling offset, you must know the _____.

Vertical

By code definition, a stack is always ________.

3

Certificates of competency for contractor & journeyman plumbers shall be issued for a period of _____ years.

Indicates modifications to the plan once construction has begun

Change Order

What they adopt meets at least the minimum standards adopted by the State.

Cities within the State of Idaho have the option of adopting the State Plumbing Rules & Laws if:

False

Cities within the State of Idaho must adopt and enforce the State Plumbing rules and laws (True/False)

Responds to a notice of error or question about the plans

Clarification

work is done in existing buildings

Deviations from this codes are permitted when ______.

8

Drainage connections shall not be made into a drainage piping system within _____ feet of any vertical to horizontal change of direction of a stack containing suds-producing fixtures.

Administer oaths of witnesses appearing before him, Impose civil penalties as provided, Summon witnesses to testify before him, Take action to prevent any person not in compliance with State of Idaho plumbing laws from further violations, Appoint licensed staff inspectors

Duties of the Administrator of the division of building safety include:

They can be used to compare the costs among different designs

Each of the following is a correct statement about coordinations drawings except ____.

Within 5 feet of the property line

Every abandoned building sewer shall be plugged or capped _________.

8 ; water closets

1 1/2 pipe is rated at _____ vent fixture units, but it cannot be used with ______.

20 ; 60

1 1/2 vent pipe can be run _____ feet horizontally but _____ feet vertically.

4 hours

The F rating of fire block is _____ hours.

325

The T rating limits the maximum temperature rise of ____ degrees F above its initial temperature through the penetration on the no fire side.

Combination wye and 1/8 bend

The acceptable fitting for connecting a horizontal drain line with another horizontal drain line is a _______.

Backwater or swing check valve and gate valve

The discharge line from an ejector shall be provided with a _________.

Spread X Constant

The formula for finding the difference in pipe legs in two parallel offsets is _____.

Fish-Mouth

The gap that occurs along the self-sealing lap on fiberglass pipe insulation indicating that a proper bond was not made is called a _____.

F rating

The measure of the ability of fire-stopping material to remain in place without letting flame pass through it is called the _____.

combustible

Where piping penetrates a rated assembly, _____ piping shall not connect to noncombustible piping unless it can be demonstrated that the transition complies with this chapter.

Better liquid flow. Less friction loss & turbulence

Why is it usually better to use smaller radius ells (such as 22s or 45s) when offsetting, instead of larger radius ells ( such as 60s or 90s)?

Let the contractor or owner decide on the wall relocation

You are working on a residential installation. The plans call for two back to back bathroom installations. There is insufficient wall space between the rooms for the plumbing, you should ______.

You may have to install the piping that connects to the HVAC units

You should know how to read mechanical drawings because _____.

Butt strip

_____ is a strip of insulation jacket material used to seal the butt ends of pipe insulation.

Intumescent

_____ means having the ability to expanded when exposed to flame.

Firestopping

______ is a system of materials and fittings used to prevent the passage of flame, smoke, and/or toxic by products of fire through structural penetrations.

Sleeving

_______ is the act of nesting several pieces of insulation together to build up to a desired thickness