PLUMBING TIER 1 EXAM
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QUESTIONS AND CORRECT
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VERIFIED ANSWERS 100%
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GUARANTEED PASS A+
GRADE
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,Refining iron-ore requires extreme heat and a reducing agent to draw oxygen out of the
iron-ore. This reducing agent, called coke, is a grayish-black substance composed
mostly of carbon.
TrueT
Lead-and-oakum joints are strong. Plumbers make these joints by pouring molten lead
over oakum fiber to form a watertight seal. This fiber is a caulking material of old hemp
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rope or jute fibers that have been treated with tar or a tar-like derivative.
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Two types of oakum that are used by plumbers are __________.
White and brown
GIVEN: There are numerous types of fittings and accessories that are used in
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commercial or industrial rough plumbing sanitary drainage systems. The items
presented in -[FIGURE-T1-Q4-1A: CAST IRON FITTING KNOWLEDGE] are No-hub,
S.V. and XH cast iron fittings.
What fitting(s) are/is known as "test tee(s)" ________
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D) II and V
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GIVEN: There are numerous types of fittings and accessories that are used in a
commercial or industrial rough plumbing sanitary drainage systems. The items
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presented in -[FIGURE-T1-Q4-1B: CAST IRON FITTING KNOWLEDGE] are No-hub,
S.V. and XH cast iron fittings.
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What fitting(s) are/is known as a "(running traps/house traps)" ________.
I and IV
GIVEN: A journeyman plumber and apprentice are installing cast iron piping in a
commercial building. They are connecting two branch lines entering the system from
,opposite directions. This fitting is designed to allow them to place the horizontal runs
and vertical runs centrally.
It is a ________ fitting that allows you to place the horizontal runs and vertical runs
centrally.
Double sanitary tee
GIVEN: The trap is a simple, design solution to the plumbing problem of separating a
living space from a sewage system. The water seal in a trap prevents harmful gas and
overpowering odors from entering the building through the fixtures. Nonetheless,
fixtures or receptors without traps are still found in some parts of the U.S. and in many
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other world countries.
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Fixture traps also ____________.
Obstruct vermin, i.e. mice, snakes and rats that attempt to enter a building through the
DWV-system.
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: The yellow-dot identified by the letter- [A] shown in-[FIGURE-T1-Q4-1C: DRAINAGE
FITTING KNOWLEDGE] represents the ___________ of the sanitary tee, ⅛-bend and
¼-bend.
Center of Fitting
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A piece of black steel pipe with a diameter ⅛" to 2" that is threaded at both ends and
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7-inches long would be referred to as a _______.
Nipple
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GIVEN: A plumber/gasfitter is installing the potable water connections and gas piping
connection associated with a replacement water heater in a residential dwelling.
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The potable water connection at the water heater may require the plumber to use a
non-conducting fitting that is designed to isolate dissimilar materials by using a
combination of brass, plastic, or rubber termed a _____.
Dielectric union.
) GIVEN: A journeyman and apprentice plumber/gas-fitter are completing the rough
gas-fitting connections in a new multiresidential condominium building. They are
installing schedule-40 black steel with threaded joint connections in sizes from ½" to
1-¼".
, Shutoff valves that are known as ______-valves should be used to control the flow of
gases and liquids.
Ball
GIVEN: Male and female threaded fittings are available in several sizes. If both the male
and female ends are the same size, the fitting is referred to as regular or standard. If
female or male end sizes differ the fitting is called a "reducing fitting".
: Assume that the fitting [A] shown in-[FIGURE-T1-Q4-1D: STEEL FITTING
KNOWLEDGE] is 1-inch. At the counter of the plumbing wholesaler you would order the
fitting as a __________.
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1"-Black malleable street-(45)
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valve.
Globe LO
Frequent operation and precise control of flow can be achieved using a _________
GIVEN: A plumber/gasfitter is completing the final gas connections in a new
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multi-residential condominium building. The gas system is schedule 40 black steel with
threaded joint connections. The piping being used ranges in sizes from ½" to 1".
A fitting that cannot be used as a gas piping connection is a ______.
Bushing
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GIVEN: Plumbers must acquire the knowledge skills to recognize tools, parts and
fittings. There are a vast variety of parts, tools and fittings that are used in the DWV,
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Water Distribution, Storm Drainage and Gas piping systems.
Which of the images shown below in-[FIGURE-T1-Q4-1E: STEEL FITTING
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KNOWLEDGE] represent "concentric" couplings ____________.
I, III and VI
GIVEN: A plumber is installing the finish plumbing in public accessible men and ladies'
toilet facilities that are in a movie theatre complex. Several types of fixtures and faucets