The Ultimate Basic Plumbing! Trivia Quiz

Reviewed by Editorial Team

The ProProfs editorial team is comprised of experienced subject matter experts. They've collectively created over 10,000 quizzes and lessons, serving over 100 million users. Our team includes in-house content moderators and subject matter experts, as well as a global network of rigorously trained contributors. All adhere to our comprehensive editorial guidelines, ensuring the delivery of high-quality content.

Learn about Our Editorial Process

| By Kubo

Kubo

Community Contributor

Quizzes Created: 16 | Total Attempts: 142,158

| Attempts: 7,584

Quiz Flashcard

Questions

Feedback

During the Quiz End of Quiz

Difficulty

Sequential Easy First Hard First

1/115 Questions

What pipe should not be buried underground?
- BI pipe
- Polyethylene pipe
- GI pipe
- None

About This Quiz

The Ultimate Basic Plumbing! Trivia Quiz assesses foundational knowledge in plumbing, focusing on pipe usage, drainage design, and storm drainage systems. It's ideal for learners aiming to understand basic plumbing principles and practices.

The Ultimate Basic Plumbing! Trivia Quiz - Quiz

Quiz Preview

2.

Which is not a rule of a thumb when designing a drainage?
- As much as possible, pipes must run in a straight line
- Underground drainage line should be on top of compacted soil
- It should be underneath the driveway
- None
Correct Answer

A. It should be underneath the driveway

Explanation

When designing a drainage system, it is not a rule of thumb for the pipes to be underneath the driveway. This is because having the pipes underneath the driveway can make them difficult to access and maintain in case of any issues. It is generally recommended to avoid placing drainage pipes under areas with heavy traffic or load-bearing structures like driveways to ensure easy accessibility and prevent any potential damage to the pipes.

Rate this question:
3.

In a location where there is no provision for drainage line, what is the next best thing?
- Store waste in the tank and dispose in sanitary fill
- Use drain tiles connected to open field
- Connect to the nearest creek
- Any of the above
Correct Answer

A. Store waste in the tank and dispose in sanitary fill

Explanation

When there is no provision for a drainage line, the next best thing would be to store waste in a tank and dispose of it in a sanitary fill. This method ensures that the waste is contained and properly disposed of in a designated area, preventing any contamination or harm to the environment. Using drain tiles connected to an open field or connecting to the nearest creek may not be feasible or environmentally friendly in this situation.

Rate this question:
4.

Which plumbing fixture does not have a water-saving feature?
- Lavatory with pop-up
- 1.5 gallon flush water closet
- Flow limiting feature
- Waterless urinal
Correct Answer

A. Flow limiting feature

Explanation

The correct answer is "flow limiting feature." This is because a flow limiting feature actually helps to conserve water by restricting the flow rate of water through a plumbing fixture. On the other hand, a lavatory with pop-up, a 1.5 gallon flush water closet, and a waterless urinal all have water-saving features.

Rate this question:
5.

In storm drainage system, it is used to prevent aggregates, debris and other unwanted objects from entering the drainage system?
- Trap
- Catch basin
- FD
- Storm trap
Correct Answer

A. Catch basin

Explanation

A catch basin is a component of a storm drainage system that is designed to prevent aggregates, debris, and other unwanted objects from entering the drainage system. It is essentially a large container with a grate on top that allows water to enter while trapping larger objects. This helps to prevent clogging and blockages in the drainage system, allowing for proper water flow and preventing damage or flooding.

Rate this question:
6.

Where are storm sewer usually placed?
- Under the sidewalk on narrow road and under the road on wide road
- Near the curb
- At the center of the road
- None
Correct Answer

A. Near the curb

Explanation

Storm sewers are usually placed near the curb. This is because stormwater runoff, which includes rainwater and melted snow, flows along the curb and into the storm sewer system. Placing the storm sewers near the curb allows for efficient collection and drainage of the stormwater, preventing flooding and water damage on the roads and sidewalks.

Rate this question:
7.

Minimum size of trap of shower drain?
- 3
- 4
- 2
- 1 1/2
Correct Answer

A. 2

Explanation

The minimum size of the trap for a shower drain is 2 inches. This is because a trap is a curved pipe that retains a small amount of water, which prevents sewer gases from entering the bathroom. A 2-inch trap is the standard size for most shower drains and is sufficient to trap debris and prevent clogging. A smaller trap size may not effectively trap debris, leading to potential blockages in the drain.

Rate this question:
8.

According to NBC, pipe support should be every,
- 3 m
- 1.5 m
- 2 m
- 4 m
Correct Answer

A. 3 m

Explanation

According to NBC (National Building Code), pipe support should be placed every 3 meters. This means that at every 3-meter interval, there should be a support system in place to hold and secure the pipes. This is important to ensure the stability and integrity of the pipes, preventing any potential damage or failure due to excessive weight or stress. Proper pipe support is crucial for the safe and efficient functioning of plumbing systems.

Rate this question:

1
9.

A plumbing devices designed to intercept most greases and solids before they enter a wastewater disposal system. Except for one;
- Trap seal
- Grease interceptors
- Grease recovery devices
- Grease converters
Correct Answer

A. Trap seal

Explanation

Trap seal is the correct answer because it refers to a plumbing device that prevents sewer gases from entering a building by maintaining a water barrier in the plumbing trap. It does not intercept greases and solids like grease interceptors, grease recovery devices, and grease converters do.

Rate this question:
10.

Allowable slope of sanitary sewer?
- 1ft of 1 meter
- 1/2 in of 1 meter
- 1/4 of 1meter
- 1/4 of 1 ft
Correct Answer

A. 1/4 of 1 ft

Explanation

The allowable slope of a sanitary sewer is 1/4 of 1 ft. This means that for every 1 ft of horizontal distance, the sewer can have a vertical drop of 1/4 ft. This slope is necessary to ensure proper flow and prevent blockages in the sewer system. A steeper slope would cause the sewage to flow too quickly, potentially causing damage or blockages, while a shallower slope would result in slower flow and increased risk of clogs. Therefore, a slope of 1/4 of 1 ft is the ideal balance for efficient and effective sewage flow.

Rate this question:
11.

Kind of pipe not suited to be exposed to ultraviolet rays?
- PB
- Iron
- Pvc
- Gi
Correct Answer

A. Pvc

Explanation

PVC (Polyvinyl chloride) is not suited to be exposed to ultraviolet rays because it is not UV resistant. When PVC is exposed to sunlight or other sources of UV radiation, it can degrade and become brittle over time. This can lead to cracks, leaks, and other structural issues in the pipe. On the other hand, PB (Polybutylene), iron, and GI (Galvanized Iron) pipes are not affected by UV rays and can be used in outdoor applications without any issues.

Rate this question:

2
12.

Where should you place soil-pipes for high-rise structures?
- Pipe chase
- Partitions
- RC wall
- Column
Correct Answer

A. Pipe chase

Explanation

In high-rise structures, soil-pipes should be placed in a pipe chase. A pipe chase is a dedicated vertical or horizontal space within the building that is specifically designed to accommodate the soil-pipes. This arrangement allows for easy access, maintenance, and repair of the pipes without the need to disturb other structural elements such as partitions, RC walls, or columns. Placing the soil-pipes in a pipe chase ensures efficient functioning of the plumbing system while minimizing disruptions to the overall structure of the building.

Rate this question:
13.

Best location to put the soil pipes?
- Drywall
- 150mm CHB wall
- Pipe chase
- Box-up with the column
Correct Answer

A. Pipe chase

Explanation

The best location to put the soil pipes is in a pipe chase. A pipe chase is a dedicated space or enclosure specifically designed to house pipes, providing easy access for maintenance and repairs. Placing the soil pipes in a pipe chase ensures that they are concealed and protected, while also allowing for easy access when needed. This helps to maintain the aesthetics of the space while ensuring the functionality and longevity of the plumbing system.

Rate this question:
14.

Can you embed a 4" diameter pipe in a 150 wall?
- No
- Yes
Correct Answer

A. No

Explanation

It is not possible to embed a 4" diameter pipe in a 150 wall because the diameter of the pipe is larger than the thickness of the wall.

Rate this question:
15.

Should not be used for a pipe chase?
- Chb
- Drywall
- Shearwall
- Double wall
Correct Answer

A. Drywall

Explanation

Drywall should not be used for a pipe chase because it is not a suitable material for enclosing or protecting pipes. Drywall is primarily used as a surface material for interior walls and ceilings, providing a smooth and finished appearance. It is not designed to withstand the pressure, moisture, and potential damage that can occur in a pipe chase. Instead, materials such as metal or plastic pipes or conduits should be used to enclose and protect pipes in a chase.

Rate this question:
16.

In the given figure, identify the plumbing fixture in label "8"?
- 2" 1/4 bend
- 2" trap assembly
- 2" 1/4 bend
- 4" closet bend
Correct Answer

A. 4" closet bend

Explanation

The correct answer is 4" closet bend. The figure shows various plumbing fixtures labeled with numbers. The label "8" corresponds to a 4" closet bend, which is a curved pipe fitting used to connect the toilet to the drain pipe. This fitting allows for a smooth flow of waste from the toilet into the drainage system.

Rate this question:

0
17.

Which wall is best suited if soil pipe will run through it?
- Drywall
- 6" CHB
- Shear wall
- Retaining wall
Correct Answer

A. 6" CHB

Explanation

A 6" CHB (Concrete Hollow Blocks) wall is best suited if a soil pipe will run through it. This is because CHB walls are strong and durable, making them capable of supporting the weight and pressure of a soil pipe. The hollow blocks also provide space for the pipe to pass through without compromising the integrity of the wall. Drywall, shear walls, and retaining walls may not be as suitable for this purpose due to their different construction materials and design purposes.

Rate this question:
18.

A pipe fitting having a large radius of curvature?
- X11.1
- X11.2
- X11.3
- X11.5
Correct Answer

A. X11.3

Explanation

X11.3 is the correct answer because a pipe fitting with a large radius of curvature is designed to allow for smoother flow of fluid or gas through the pipe. A larger radius of curvature reduces the amount of friction and turbulence in the flow, resulting in less energy loss and improved efficiency. This type of fitting is commonly used in applications where a high flow rate or low pressure drop is desired.

Rate this question:

1
19.

A tee shaped pipe fitting for making a three-way joint?
- X11.8
- X11.9
- X11.6
- X11.4
Correct Answer

A. X11.4

Explanation

The correct answer is X11.4 because a tee-shaped pipe fitting is specifically designed for making a three-way joint. The tee fitting has one inlet and two outlets, allowing for the connection of three pipes at a right angle. This type of fitting is commonly used in plumbing and piping systems to divert or combine flow in multiple directions.

Rate this question:

1
20.

A tee having a slight curve in 90degree bend transition to channel the flow from a branch pipe in the direction of the main?
- X11.1
- X11.9
- X11.6
- X11.7
Correct Answer

A. X11.6

Explanation

This answer, X11.6, is correct because it describes a tee fitting that has a slight curve in the 90-degree bend transition. This curved design allows the flow from a branch pipe to be channeled in the direction of the main pipe. The other answer options do not mention this specific design feature, making X11.6 the most suitable choice.

Rate this question:

1
21.

A cross fitting having a slight curve in each of the 90degree transition to channel the flow from branch pipes in the direction of the main?
- X11.1
- X11.6
- X11.8
- X11.9
Correct Answer

A. X11.8

Explanation

A cross fitting with a slight curve in each of the 90-degree transitions is designed to channel the flow from the branch pipes towards the main pipe. This curved design helps to reduce turbulence and pressure drop in the flow, ensuring smooth and efficient flow through the fitting. The other options do not mention this specific curved design, making X11.8 the most suitable choice.

Rate this question:

1
22.

An elbow having lugs for attachment to wall or joist?
- X12.1
- X11.5
- X11.4
- X11.2
Correct Answer

A. X11.2

Explanation

This answer suggests that X11.2 is the correct option for an elbow that has lugs for attachment to a wall or joist.

Rate this question:
23.

Base on the figure above, which of the following is a 1/8 bend fitting?
- A
- D
- C
- B
Correct Answer

A. B

Explanation

Based on the figure above, option b is a 1/8 bend fitting. This is because it resembles a curved pipe with a 45-degree angle, which is characteristic of a 1/8 bend fitting. Option a is a straight pipe, option d is a 90-degree elbow fitting, and option c is a T-shaped fitting, so they are not 1/8 bend fittings.

Rate this question:

1
24.

Base on the figure above, which of the following is a 1/4 bend fitting?
- A
- D
- C
- B
Correct Answer

A. A

Explanation

Based on the figure, option a is a 1/4 bend fitting. This is because option a shows a curved pipe that bends at a 90-degree angle, forming a quarter of a complete circle. The other options do not show a similar bend or curve, making them incorrect choices for a 1/4 bend fitting.

Rate this question:

1
25.

In the figure above, which is a reducing socket?
- A
- B
- C
- D
Correct Answer

A. B
26.

In the figure above, which is a flange adaptor?
- A
- B
- C
- D
Correct Answer

A. D
27.

Where will you least place a downspout?
- At corner of walls
- Inside columns
- Wall hung
- In between window openings
Correct Answer

A. In between window openings

Explanation

The least ideal place to put a downspout would be in between window openings. This is because the downspout would obstruct the view from the window and potentially cause water to splash onto the window during heavy rainfall. Placing the downspout at the corner of walls, inside columns, or wall hung would be more suitable locations that do not interfere with the functionality of the window.

Rate this question:
28.

Copper pipes are classified as what main pipe?
- Galvanized iron
- Ceramic
- S/s
- Pvc
Correct Answer

A. Ceramic

Explanation

Copper pipes are not classified as galvanized iron or PVC pipes because these materials are different from copper. Copper pipes are also not classified as stainless steel (s/s) pipes because stainless steel is a separate material. The correct answer is ceramic, which means that copper pipes are classified as ceramic pipes.

Rate this question:
29.

Where traps are used to prevent foul odor from coming out. Which of the following does not have a water trap?
- Kitchen sink
- Lavatory
- Floor drain
- Bidet
Correct Answer

A. Bidet

Explanation

A water trap, also known as a P-trap, is a curved pipe that is filled with water to prevent foul odors from coming back up through the plumbing system. It works by creating a barrier of water that blocks the flow of gases and odors. In this case, all of the options listed have water traps except for the bidet. A bidet is a bathroom fixture used for personal hygiene, and it typically does not have a water trap because it does not require one to prevent foul odors.

Rate this question:

2
30.

Where is water meter located?
- Right after the main distribution line connection
- Beside the water pump
- Within RROW, right before the property line
- Right side of the water pump or in it's flow direction
Correct Answer

A. Right after the main distribution line connection

Explanation

The water meter is located right after the main distribution line connection. This is because the water meter is used to measure the amount of water that is being distributed to a property. By placing it right after the main distribution line connection, it allows for an accurate measurement of the water being supplied to the property.

Rate this question:

3
31.

What is the color coding of pipes for potable water?
- Cyan
- Green
- Blue
- Light blue
Correct Answer

A. Blue

Explanation

The color coding for pipes used for potable water is blue. This is a universally recognized standard that helps to easily identify the type of water being transported through the pipes. Blue color coding is specifically used for potable water to ensure that it is not confused with other types of water or substances.

Rate this question:

2
32.

What is the color of pipes for steam?
- Light blue
- Gray
- Blue
- White
Correct Answer

A. White

Explanation

The color of pipes for steam is white. This is because white pipes are used to indicate that they are carrying steam. The color coding of pipes is an important safety measure in industries to ensure that workers can easily identify the contents of the pipes and take appropriate precautions. White is specifically used for steam pipes to distinguish them from other types of pipes and prevent any confusion or accidents.

Rate this question:
33.

Minimum clearance from the floor of pipes for AC units when crossing a hallway or corridor?
- 2.1 m
- 2.2 m
- 2.3 m
- 2.4 m
Correct Answer

A. 2.3 m

Explanation

The minimum clearance from the floor of pipes for AC units when crossing a hallway or corridor is 2.3 m. This clearance is necessary to ensure that there is enough space for people to walk under the pipes without any risk of hitting their heads or interfering with the AC unit's functionality. A clearance of 2.3 m allows for comfortable passage while also maintaining the proper distance between the pipes and the floor.

Rate this question:
34.

What is the color of communication line piping?
- White
- Orange
- Gray
- Silver
Correct Answer

A. Gray

Explanation

The color of communication line piping is gray.

Rate this question:
35.

Plumbing permit shall be invalid if work has not commenced after a period of?
- 6 months
- 1 year
- 180 days
- None
Correct Answer

A. 1 year

Explanation

A plumbing permit is typically issued for a specific period of time during which the work is expected to commence and be completed. If the work has not commenced after a certain period, the permit becomes invalid. In this case, the correct answer is "1 year," indicating that if the plumbing work has not started within a year of obtaining the permit, the permit will be considered invalid.

Rate this question:

1
36.

Standard Water pressure from NAWASA?
- 60psi
- 120psi
- 30 psi
- 40 psi
Correct Answer

A. 60psi

Explanation

The correct answer is 60psi. This indicates that the standard water pressure from NAWASA is 60 pounds per square inch. Water pressure is a measure of the force that pushes water through pipes and into homes or buildings. A higher water pressure can result in stronger water flow, while a lower water pressure may lead to weaker flow. In this case, NAWASA maintains a water pressure of 60psi, ensuring a satisfactory water flow for its customers.

Rate this question:

1
37.

Valve permitting a gas or liquid to flow in 1 direction?
- Check valve
- Globe valve
- Angle valve
- Gate valve
Correct Answer

A. Check valve

Explanation

A check valve is designed to permit the flow of gas or liquid in only one direction. It allows the fluid to pass through in the desired direction, but prevents it from flowing back in the opposite direction. This is achieved through the use of a one-way valve mechanism, which opens when the pressure on the inlet side is greater than the outlet side, and closes when the pressure on the outlet side is higher. Therefore, a check valve is the correct answer for a valve that permits flow in only one direction.

Rate this question:

2
38.

How do you connect 2 hub less cast iron pipes?
- Coupling
- Elbow
- Structural compression gasket
- Polymer compression gasket
Correct Answer

A. Structural compression gasket

Explanation

A structural compression gasket is used to connect two hub less cast iron pipes. This type of gasket provides a secure and tight seal between the pipes, ensuring that there are no leaks or disruptions in the flow of fluid. It is designed to withstand the pressure and stress placed on the pipes, making it an ideal choice for connecting hub less cast iron pipes. Couplings and elbows may also be used in pipe connections, but in this specific scenario, a structural compression gasket is the correct choice.

Rate this question:
39.

What is the most efficient tools for cutting cast iron pipe?
- Handsaw
- Hacksaw
- Chisel and hammer
- Snap cutter
Correct Answer

A. Snap cutter

Explanation

A snap cutter is the most efficient tool for cutting cast iron pipe because it is specifically designed for this purpose. It has a chain with cutting wheels that can easily cut through the tough material of the cast iron pipe. This tool provides a clean and precise cut without much effort, making it the preferred choice for professionals working with cast iron pipes.

Rate this question:
40.

A term used to describe pumps that are interconnected with each other?
- Gang
- Series
- Battery
- None
Correct Answer

A. Battery

Explanation

The term "battery" is used to describe pumps that are interconnected with each other. This term is commonly used in situations where multiple pumps are connected in a parallel arrangement to work together and provide a higher flow rate or increased pressure. The pumps in a battery arrangement work in coordination to achieve the desired pumping outcome.

Rate this question:
41.

What type of pipe is not recommended for water line?
- Copper
- Lead
- GI
- Iron
Correct Answer

A. Lead

Explanation

Lead is not recommended for water lines because it can contaminate the water and pose health risks. Lead pipes can leach lead particles into the water, especially when the water is acidic or has been sitting in the pipes for a long time. Lead exposure can lead to various health problems, particularly in children, including developmental delays, learning difficulties, and damage to the brain and nervous system. Therefore, using lead pipes for water lines is not recommended.

Rate this question:

1
42.

A drain connecting one or more fixtures to a solid or waste stack?
- Combined drain
- Floor drain
- Circuit drain
- Branch drain
Correct Answer

A. Combined drain

Explanation

A combined drain is a type of drain that connects multiple fixtures to a solid or waste stack. This means that it can collect wastewater from different sources, such as sinks, toilets, and showers, and direct it to a main drainage system. The term "combined" refers to the fact that it combines the drainage from multiple fixtures into one drain line. This type of drain is commonly used in residential and commercial buildings to efficiently manage wastewater disposal.

Rate this question:
43.

During the site inspection, the architect notices that a soil pipe will cross a beam, whats the best advice he can do?
- Resize the diameter of the soil pipe, enough that can go across the beam without affecting it
- It doesn't matter anyway, let the master plumber handle it.
- Drill a hole of the beam, enough diameter that a pipe could go in and pass through. Just make sure that the hole is precisely in the middle to avoid the bars to be hit in.
- Simply ask to relocate, it's just a pipe anyway
Correct Answer

A. Simply ask to relocate, it's just a pipe anyway

Explanation

The best advice in this situation would be to simply ask to relocate the soil pipe. This is because the architect has noticed that the pipe will cross a beam, which could potentially cause damage or structural issues. By asking to relocate the pipe, the architect can ensure that the integrity of the beam and overall structure is not compromised.

Rate this question:
44.

What should not be permitted to cross a beam?
- Soil pipe
- Electrical wiring
- Water pipe
- AC ducts
Correct Answer

A. Soil pipe

Explanation

Soil pipes should not be permitted to cross a beam because they can cause structural issues. Soil pipes are used for waste disposal and can carry heavy loads of water and waste. Crossing a beam can put excessive weight on the beam and potentially cause it to weaken or fail. It is important to ensure that any pipes crossing beams are properly supported to avoid any structural damage.

Rate this question:
45.

Maximum distance of clean-out should be
- 5 m
- 6 m
- 10m center to center
- 15 m
Correct Answer

A. 10m center to center

Explanation

The maximum distance for a clean-out, which refers to an access point in a plumbing system used for clearing blockages and for inspection, should typically be 10 meters center to center. This guideline ensures that any section of the plumbing can be accessed for maintenance or repair without excessive difficulty, allowing for efficient cleaning and inspection intervals along the pipeline. This distance strikes a balance between having enough access points for maintenance without unnecessarily complicating the plumbing infrastructure.

Rate this question:

1
46.

What is the best fixture for a public comfort room?
- Gate valve
- Flushometer
- Faucet
- None
Correct Answer

A. Flushometer

Explanation

A flushometer is the best fixture for a public comfort room because it is designed specifically for high-traffic areas. It is a valve that controls the flow of water to flush a toilet or urinal, ensuring a powerful and efficient flush every time. Unlike a faucet or gate valve, a flushometer is specifically designed for toilets and urinals, making it the most suitable choice for a public comfort room.

Rate this question:
47.

There are several reasons why soil stacks are not allowed in columns. Which is not a reason?
- Pipes will interfere with reinforcing bars
- The size of the columns will be larger
- Cracks and leaks cannot be detected
- The gas emitted will deteriorate concrete
Correct Answer

A. Cracks and leaks cannot be detected

Explanation

The reason why cracks and leaks cannot be detected is not a reason for why soil stacks are not allowed in columns. Soil stacks are not allowed in columns because pipes will interfere with reinforcing bars, the size of the columns will be larger, and the gas emitted will deteriorate concrete. However, cracks and leaks not being detectable is not mentioned as a reason for not allowing soil stacks in columns.

Rate this question:

1
48.

How do we size sewage pits?
- Volume of solid waste only
- Volume of liquid waste
- Volume of solid, liquid and storm
- None
Correct Answer

A. Volume of solid waste only

Explanation

To size sewage pits, we need to consider the volume of solid waste only. This is because sewage pits are designed to hold and treat solid waste, such as feces, toilet paper, and other non-liquid materials. The volume of liquid waste is not relevant in this context, as it typically flows through the pit and is treated separately. Similarly, the volume of stormwater is not considered when sizing sewage pits, as stormwater is typically managed through separate drainage systems. Therefore, the correct answer is to consider the volume of solid waste only when sizing sewage pits.

Rate this question:
49.

What can be discharge directly to sewer system?
- Buiding sewer
- Oil and grease
- Storm water
- Grey water
Correct Answer

A. Buiding sewer

Explanation

Building sewer can be discharged directly to the sewer system because it is designed to carry wastewater from a building to the public sewer system. It is specifically built to handle the discharge of domestic wastewater, including water from toilets, sinks, showers, and laundry. Unlike stormwater, which contains pollutants and contaminants from rainwater runoff, building sewer is meant to transport only wastewater that has been treated or is suitable for treatment in the public sewer system. Therefore, building sewer is an acceptable discharge to the sewer system.

Rate this question: