Interview Guides Other Professions Plumbing. Plumbing Interview Questions and Answers will guide us that Plumbing is the skilled trade of working with pipes, tubing and plumbing fixtures for drinking water systems and the drainage of waste.

A plumber is someone who installs or repairs piping systems, plumbing fixtures and equipment such as water heaters. The plumbing industry is a basic and substantial part of every developed economy due to the need for clean water, proper collection and transport of wastes.

Turn off electric power or gas before doing anything. Damage will result if element comes on when tank is dry. Turn of water supplying HWT. Note that a time switch is NOT a safe place to turn off the electricity! Do it from the circuit breaker, or pull the fuse. Drain the water heater HWT. After HWT is drained, and hose is still attached, open and close the inlet valve a few times to help flush the sediment out.

Do this 'till the water comes out clear. You may have to dismantle the valve, if there are large chunks of scale coming loose. Remove the sacrificial anode, which looks like a plug in the top of the HWT.

plumbing test questions and answers pdf

Inspect; it should be almost as long as the water heater. With anode out, shine flashlight inside of tank to inspect for rust. If you see a lot of rust, it's probably time to replace it Water heaters are normally glass- or ceramic-lined to prevent corrosion; this is also what the anode's for. The heat of the water hastens corrosion, once it starts. Open up the element access panels. Disconnect one wire from each of the elements.

With a volt-ohm-meter, check to see that both elements are still functional the resistance across the terminals should be??? Is This Answer Correct? Tankless Water Heaters?

plumbing test questions and answers pdf

Conventional water heaters are by far the most common type of water heater in the U. They range in size from 20 to 80 gallons or larger and are fueled by electricity, natural gas, propane, or oil. The down side to a conventional water heater is that energy is consumed even when no hot water is being used. Tankless water heaters do not contain a storage tank like conventional water heaters.

A gas burner or electric element heats the water only when there is a demand for hot water. There are many things to consider when choosing conventional vs. Your Blue Mountain representative can guide you through your options and get the right system for home that will give years of service and efficient performance. In fact, the difference can be damaging to your home and your body.


Maybe you have experienced damaged clothing from the laundry, excessive soap consumption, pipe scaling, faucet and fixture deterioration, skin problems, or undesirable tastes or odors from your water. If you have, then you have a water problem. Call Blue Mountain for expert advice on all kinds of water treatment systems. We would recommend that you call a qualified, trained and certified plumber.

The water pipes inside and outside your home can be very delicate. In an older home, pipes wear thin from the inside out making them appear sound but in fact are very brittle. An unqualified and unskilled rooter company could cause extensive damage to your pipes and your home.Interview Questions Answers. After clicking the below "Download Plumbing Interview Questions" button you must have to stay for a couple of seconds to process and complete your request.

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While using this site, you agree to have read and accepted our terms of usecookie and privacy policy. Copyright by Interview Questions Answers. Other Professions. Plumbing Interview Questions. Plumbing PDF Downloaded:.Plumbing exams vary by state but most all states and local plumbing jurisdictions have adopted either the IPC or the UPC plumbing codes.

Typical exam sections include: fixtures, sanitary drainage systems, administrative policies, venting, indirect and special wastes, etc.

Grade Answers as You Go. A plumbing permit is not needed for the direct replacement of any plumbing fixture, except for a water heater. However, if a fixture location is changed, a permit is required. In other words, you can remove a toilet and replace it with a new one without the need for a permit. But, if you move the closest flange in any way, a permit is required. This is true for all plumbing fixtures. Incorrect answer. Please choose another answer.

The authority having jurisdiction determines the provisions for licensing.

plumbing test questions and answers pdf

State Plumbing Boards determine requirements and provide testing of qualified applicants to become licensed. Plumbing inspectors enforce codes adopted by the AHJ. It is common for modern DWV systems to be tested with air.

Plumbing Practice Test

In the old days water was the most common means of testing. When there is a leak that cannot be found easily, smoke can be used to expose the leak location. Smoke is not used as a primary test method. Air is the test medium of choice. The testing of a DWV system is to be conducted for a minimum of 15 minutes.

The minimum test pressure is required to be 10 pounds per square inch PSI. If only underground plumbing is being tested there must be one riser that is at least ten feet above the main plumbing system. Some pipe manufacturers list measurement in one foot increments when rolls of pipe are ' or over, but do not list increments on joints of 21', 20' or less.

Brand names, psi rating, and nominal pipe size are required. Handicap toilets are available with heights that include 16 inches, 18 inches and 20 inches.

plumbing test questions and answers pdf

Eighteen inches is the most common height of a standard handicap toilet. The minimum unobstructed opening of egress for a shower door installed on a typical shower is 22 inches. An air gap is believed to be superior to an air break for the protection of an indirect wastepipe from back siphonage. Due to the nature of installation there is more risk of a backflow occurring with an air break. Since air breaks have discharge piping entering a receptor it is feasible to have the sanitary drain become clogged and back up, which could result in contaminated waste traveling back to the indirect waste fixture.

This is not possible when an air gap is used.First and primary technique to unclog the blockage is to pour hot water through the pipes. If the blockage still remains then, you need to use other options. The lowest point in a drainage system where the interior drainage pipe meet and are conveyed into the sewer is referred as Building Drain.

This reaction will generate a lot of heat and dissolves the clogging substance, and clears the blockage. These chemical cause the organic material of the clog to lose an electron and become oxidized. It also generates heat and gas, which clears the blockage. This heat will dissolve the substance and clears the blockage.

Angle stop is a shutoff valve between the water supply pipe and the fixture it supplies. It is used to shut off water to a fixture in case of failure, repair or leakage.

Quiz: The Ultimate Basic Plumbing Quiz: HowStuffWorks

Sump pump is usually used in the basement area to remove the accumulated water during flood. Moreover, there are few reason it may stop working all of sudden. Take only 1 cup of vinegar. Eductor is a device that utilizes a nozzle and throat, fitted in a stream of water to build a partial vacuum to draw liquid or air into the stream; normally used to draw regeneration chemicals into an ion exchange water treatment system, like deionizer or softener.

Your email address will not be published. Download PDF. I am chitta Ranjan Barik… Good job plumbing Reply. Im nevourse tomorrow ihave interview for plumbing aprentice but i learn more here thank you Reply.The basic natural laws of plumbing are gravity, pressure and water seeking its own level. One brings in freshwater, while the other removes wastewater. Definitely not -- the wastewater sub-system could pollute the freshwater if there were an overlap. The vent stack and vent pipes admit air to keep the trap sealed.

Individual stop valves permit water to be turned off at that particular fixture only and not the main water supply. It is simply more economical and sufficient for most circumstances. No pressure is required. It's a matter of gravity. The wastewater would not flow out and the water in the traps would need to be siphoned out. The sink trap prevents dangerous sewer gas from entering the home and also prevents some waste from entering the pipes, thereby blocking them. Hair and grease are the most common causes of sink blockages.

The best way is to examine the pipes in the basement or crawl space under the house. All devices that use freshwater and allow the flow of wastewater are considered to be fixtures. Check first with your plumbing code what is permitted. A bridge is where the two subsystems incoming and outgoing water meet, such as a sink. Get to know the workings of your plumbing system. Drainage pipes are angled downward and gravity pulls the waste down. How much do you know about dinosaurs?

What is an octane rating? And how do you use a proper noun? Lucky for you, HowStuffWorks Play is here to help. Our award-winning website offers reliable, easy-to-understand explanations about how the world works.What ancient roman term refers to an individual who worked in the sanitary field of ancient Rome?

What is the title given to a person who is a skilled worker in the field of sanitation? NPCP refers to:. Its complete RA no:.

IRA What is the meaning of BOD?

Master Plumber Reviewer 01-05 205 Qs

Each fixture directly connected to the drainage system shall be equipped with. Plumbing is defined as the art and science of fixtures and other apparatus. What is the general role of Sanitary and Environmental Engineering?

This promulgated the design and layout of a plumbing system that. In the 17th century, the English parliamentary passed the first laws. What period was plumbing revived? It is the period when Europe was plagued with epidemics.

Plumbing shall be installed with due regard to presentation of the. In what civilization did the concept and importance of plumbing became more defined and appreciated? The ability of an area resource system to support the activities of. This the pollutant that affects the quality of water due to impact. An act which regulate the Practice of Sanitary Engineering in the Philippines.

RA Ina division of plumbing construction and inspection, with the city of Manila as a model, was headed by whom?Speak now. Where do you stand on the argument? Do you know enough plumbing facts to take on these quizzes?

Do you know what water pipes used to be made of when they were first brought into use? Sir John Alexander is credited with inventing what in ?

In a series of sewer explosions occurred in Canada. Do you know where in Canada the explosions occurred? Can you name the 10 different types of common end-user plumbed-in fixtures?

Plumbing is any system in one's house, building or street that conveys fluids for a wide range of applications — such as sinks, dishwashers, showers, toilets and washing machines. Test your knowledge on plumbing with Sample Question. Plumbing Test. Plumbing code test on installation of fixtures and piping. General Questions Of Plumbing 3. Quiz About Plumbing 1.

The Ultimate Basic Plumbing Quiz. The entire questions are composed of basic and board exam type questions. Answer the questions sincerely with the time alloted. The main objective of the quiz is BI pipe. Polyethylene pipe. GI pipe. Master Plumber Quizzes. Valve Quizzes. Pump Quizzes. Plumbing Code Quizzes. Pipes And Cisterns Quizzes.