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Quiz Session - Attempts With Random Questions

NITC Journey Level Plumber Exam Questions

Page 10 of 25

181.

Which of the following defines a toilet that is comprised of a sump and girding pump along with a point of discharge?

  • Macerating toilet

  • Flushometer 

  • Pressure assisted toilet

  • Public toilet

Correct answer Macerating toilet

This device is comprised of an all-in-one system: a toilet, sump basin, and macerating system. This is used in applications where a toilet cannot be gravity drained out. 

182.

All malleable iron water fittings should be:

  • galvanized

  • black

  • wrapped

  • insulated

Correct answer: galvanized

If malleable fittings are used for water, they must be galvanized to help delay corrosion. Galvanized piping will still corrode over time, just not as quickly as black iron. They are not required to be wrapped or insulated. 

183.

What is the minimum clearance for the front of any water closet or bidet?

  • 24 inches

  • 15 inches

  • 30 inches

  • 12 inches

Correct answer: 24 inches

24 inches is the minimum clearance that is needed for adequate clearance in front of the water closet. 

12 and 15 inches are not far enough clearance. 30 inches would be acceptable, but it is not the minimum required clearance.

184.

A pump that is meant to serve water to trap primers, urinals, and water closets must be able to deliver at least _____ psi.

  • 15 

  • 30

  • 40

  • 50

Correct answer: 15

Pumps that serve a rainwater system, and are required to serve the fixtures listed above, must be able to send at least 15 psi of pressure to those fixtures for them to operate properly. The more pressure the better, for those types of fixtures but 15 psi is the minimum requirement, 

185.

Whirlpool bathtubs that have the Jacuzzi function must have access that is sized properly for what reason?

  • Pump replacement 

  • Routine maintenance 

  • Original install

  • Safety 

Correct answer: Pump replacement

Access is very critical for future repairs and replacement. The pumps can be rather large and uniquely shaped so that access must be able to accommodate the removal of the pump and the replacement.

186.

Circuit or loop vents cannot be less than               in size. 

  • 1.25 inches

  • 1 inch

  • 1.5 inches

  • 2 inches

Correct answer: 1.25 inches

When using a circuit or loop vent, the code states that the vent size cannot be smaller than 1.25 inches. 

187.

What should be installed where the line pressure exceeds the pressure needed to service the fixtures?

  • Gas regulator

  • Gas ball valve

  • Gas meter

  • Flexible appliance connector 

Correct answer: Gas regulator 

Where the incoming pressure is much higher than the pressure that is needed for normal operation, a gas regulator must be installed to lower it. There are certain limitations that come up when dealing with regulators; some are rated for outdoor installations and others are rated for both indoor and outdoor. The specifications on the system must be sized properly along with the regulator to match the pressures that are required, such as going from a 2 pound system down to a 1/2 pound system. 

(Refer to 2021 UPC 1208.8.4) 

188.

When installing gas systems, the Authority Having Jurisdiction will issue a ______________ of inspection, once it is inspected.

  • certificate

  • completion

  • release

  • pass

Correct answer: certificate

The terminology in this question is very important. The Authority Having Jurisdiction must release the certificate of inspection in order for the gas companies to accept that the work is complete and they can supply the system with gas. These two agencies usually always work together to ensure the safety of the systems. Completion, release, and pass are all wrong according to the language used in the 2021 UPC.

189.

               -aluminum fittings must not be used in systems containing flammable gas-air mixtures.

  • Zinc

  • Copper

  • Steel

  • Brass

Correct answer: Zinc

Zinc is a flammable element that could increase the issue if there were flammable gases that were to ignite in the system. The other items are acceptable but very uncommon to be mixed with aluminum.

190.

A                       unit is considered a way of quantifying the load producing effects on a plumbing system.

  • fixture

  • thermal

  • fuel

  • water

Correct answer: fixture

The fixture unit is a way of quantifying the load producing effect that all different fixtures can have an effect on the plumbing system as a whole, based on the specifications of the different fixtures.

191.

The                 is the principle artery of the venting system that has a system of continuous piping to which branches can be connected to. 

  • main vent 

  • branch vent 

  • yoke vent 

  • wet vent 

Correct answer: main vent 

The main vent is usually the largest in diameter if there are other branches that tie into it. There could be multiple main vents depending on how the system is designed. Branch and yoke vents are not typically the main vent, but the branches and the wet vent are designated as a drain and vent, not the main vent. 

192.

What is the main characteristic needed for each trap?

  • Self-cleaning

  • Concealed

  • Accessible

  • Slip-joint 

Correct answer: Self-cleaning

Each trap needs to be self-cleaning. Although it is nice if they are accessible (i.e., in a cabinet), that isn't always the case for tubs, showers, and other concealed traps.

It is helpful if traps are concealed, accessible, and slip-joint, but it is not required.

193.

Which of the following best describes a meter?

  • A device installed to measure the volume of gas delivered through it

  • A device that charges the system

  • A device to regulate pressure

  • A pressure measuring device 

Correct answer: A device installed to measure the volume of gas delivered through it

The meter is the device that measures the volume of gas that is being used that is usually provided by the gas supplier. The regulator is the device that regulates the pressure going through the unit. The charging of the system is usually done when testing the system before it is in use along with the pressure measuring device. 

194.

What is the WSFU for a dual head shower in a private dwelling?

  • 4

  • 2

  • 1

  • 0.5

Correct answer: 4 

The dual shower head is the key item to be aware of in this scenario. 2021 UPC Table 610.3 states that a private shower head is 2.0 WSFU, but it does notate that this is per shower head not per shower. So, being that there are two shower heads, the WSFU should be 4.0. 

195.

Excavations that are performed for the underground installation of fuel piping must be left ________ until the Authority Having Jurisdiction has inspected it. 

  • uncovered

  • covered

  • blocked off

  • overnight 

Correct answer: uncovered

Whether the job is completed but not yet inspected, the excavation must be left open until the Authority Having Jurisdiction inspects it, then it can be backfilled. The code doesn't require any other stipulation. It is smart to block it off but is not required, and the time frame again will depend on when the inspection occurs.  

196.

A                      is a component that is installed to collect any condensation that could be built up in the system. 

  • drip

  • sediment trap 

  • gas flex

  • shut off valve 

Correct answer: drip 

This is different than a sediment trap. It should be designed to collect condensation for the system as a whole, whereas the sediment trap is designed to be at every gas appliance. 

197.

Where there is a gang shower, how many temperature-controlled devices should there be?

  • One

  • Two

  • Three

  • Same amount as showerheads

Correct answer: One

No matter how many shower heads there, there only has to be one mixing valve for the whole gang of showers. This allows control over the temperature for each one.

198.

Why must a potable water system be chlorinated at 50 Parts Per Million (PPM) for 24 hours?

  • Because a cross connection has been discovered 

  • Due to high pressure 

  • Due to low pressure

  • It must be done any time there's a leak.

Correct answer: Because a cross connection has been discovered

This is a direct result of discovering a cross connection that could have the potential to cause harm, so this method is used to kill any bacteria that may be present. 

Although high pressure, low pressure, and leaks in the system can be problematic, these are not direct causes of a system needing to be chlorinated. Cross contamination is the only reason a system would need to be chlorinated. 

(Refer to 2021 UPC 1502.3.3)

199.

The two permanent opening methods must include an                  and                     opening.

  • upper, lower

  • left, right

  • 2 foot, 2 foot

  • smaller, larger

Correct answer: upper, lower

In this method, the combustion air includes an upper and a lower opening that are 12 inches from both the bottom and the top of the appliance enclosure. These are permanent openings and they must never be closed. 

200.

Gas piping cannot be run through which of the following?

  • Chimney 

  • Ducting that used for ventilation in dropped ceiling 

  • In between floors

  • In walls 

Correct answer: Chimney

It can be run through the other applications that are listed, but not in a chimney or a combustion air duct.

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