1.
Receptacles attached to a plumbing system other than a trap in which waste water or waste may be collected or retained for ultimate discharge into the plumbing system.
Correct Answer
B. Fixtures
Explanation
Fixtures are receptacles attached to a plumbing system other than a trap where waste water or waste may be collected or retained for ultimate discharge into the plumbing system. This can include items such as sinks, toilets, bathtubs, and showers. Fittings are the components that connect different sections of a plumbing system, such as pipes and valves. Nipples are short sections of pipe with male threads on both ends, used for connecting two female threaded fittings. Furnitures is not a correct term in this context, as it does not relate to plumbing systems.
2.
Identify the type of lavatory that is installed directly onto the surface of a countertop or vanity.
Correct Answer
A. Surface Mounted
Explanation
A surface-mounted lavatory refers to a type of sink or basin that is installed directly onto the surface of a countertop or vanity rather than being recessed or integrated into the structure. This type of lavatory is visible above the surface of the countertop, providing a sleek and modern aesthetic. Surface-mounted lavatories come in various shapes, sizes, and materials to suit different design preferences and space requirements. They are commonly used in bathrooms, kitchens, and other areas where handwashing or other washing activities are conducted.
3.
A plumbing fixture used for washing the middle part of the body, especially the genitals. It is also known as the Sitz Bath.
Correct Answer
C. Bidet
Explanation
A bidet is a plumbing fixture that is used for washing the middle part of the body, especially the genitals. It is also known as a sitz bath. The other options listed, such as lavatory, water closet, and urinal, are not specifically designed for this purpose. A lavatory is a general term for a bathroom fixture, a water closet is a toilet, and a urinal is a fixture used for urination. Therefore, the correct answer is bidet.
4.
A pipe installed to vent a fixture trap, that connects with the vent system above the fixture served or terminates in the open air.
Correct Answer
A. Individual Vent
Explanation
An individual vent is a pipe that is installed to vent a fixture trap and connects with the vent system above the fixture served or terminates in the open air. This allows for proper ventilation and prevents the trap from being siphoned or losing its seal.
5.
An arrangement of venting so installed that one vent pipe serve two traps.
Correct Answer
A. Unit vent
Explanation
A unit vent is an arrangement of venting where one vent pipe serves two traps. This means that instead of having separate vent pipes for each trap, a single vent pipe is used to serve multiple traps. This arrangement is commonly used in plumbing systems to save space and simplify the installation process. By using a unit vent, the plumbing system can be more compact and efficient.
6.
The "backbone" of the entire sanitary system.
Correct Answer
C. Main Soil and Waste Vent
Explanation
The main soil and waste vent is considered the "backbone" of the entire sanitary system because it plays a crucial role in maintaining proper ventilation and preventing the buildup of harmful gases in the plumbing system. It allows for the release of sewer gases and helps maintain the balance of air pressure within the system. Without a properly functioning vent, the plumbing system can become clogged, leading to potential issues such as sewer odors, slow drainage, and even sewer backups.
7.
Clean outs are not required on a horizontal drain less than _____ m in length unless such line is serving sinks or urinals.
Correct Answer
B. 1.50 m
Explanation
Clean outs are not required on a horizontal drain less than 1.50 m in length unless such line is serving sinks or urinals. This means that if the horizontal drain is less than 1.50 m long and is not connected to sinks or urinals, there is no need for clean outs. Clean outs are access points in the plumbing system that allow for easy cleaning and maintenance.
8.
It is a type of trap used in fixtures that discharge large amount of water such as bathtubs, shower or floor drains.
Correct Answer
C. Drum Trap
Explanation
A drum trap is a type of trap used in fixtures that discharge large amounts of water, such as bathtubs, showers, or floor drains. It is designed to prevent sewer gases from entering the building while allowing water to flow freely. The drum trap consists of a sealed drum-shaped container with an inlet and outlet pipe. As water flows into the trap, it fills up the drum, creating a water seal that blocks the gases from the sewer system. This type of trap is commonly found in older plumbing systems but has been largely replaced by more efficient and easier to maintain traps such as P-traps.
9.
It is a device that regulates the flow of a fluid ( gases, liquids, solids, slurries)by opening, closing, or partially obstructing various passageways. This are technically pipe fittings, but are usually discussed as a separate category.
Correct Answer
A. Valves and Control
Explanation
Valves and Control are devices that regulate the flow of fluids by opening, closing, or partially obstructing various passageways. They are considered separate from pipe fittings, although they are technically classified as such. Valves and Control play a crucial role in controlling the flow of gases, liquids, solids, and slurries in various industries such as manufacturing, oil and gas, water treatment, and more. They are commonly used in conjunction with tanks, water storage, and pumps to ensure efficient and controlled fluid flow.
10.
The water collector at the eaves of the building.
Correct Answer
D. Roof gutter
Explanation
A roof gutter is a channel that collects rainwater from the eaves of a building and directs it away from the foundation. It is designed to prevent water from dripping or flowing directly off the roof, which can cause damage to the building and its surroundings. The term "water collector at the eaves of the building" accurately describes a roof gutter, as it collects water at the edge of the roof and channels it to a downspout for proper drainage.
11.
What is the color of the pipe for STEAM - High Pressure and Exhaust System?
Correct Answer
B. White / Buff
Explanation
The color of the pipe for steam in a high pressure and exhaust system is white/buff. This color is used to indicate that the pipe is carrying steam, which is a high-pressure substance. White/buff is a common color coding for steam pipes in industrial settings to ensure safety and proper identification of the pipe's contents.
12.
What is the color of the pipe for oil used in Delivery and Discharge?
Correct Answer
B. Brass Bronze / Yellow
Explanation
The color of the pipe for oil delivery and discharge is Brass Bronze/Yellow. This color is commonly used for pipes that transport oil due to its corrosion resistance and durability. The brass bronze/yellow color also helps to differentiate oil pipes from pipes used for other substances, ensuring proper identification and safety in industrial settings.
13.
All horizontal piping shall be run in practical alignment and at a uniform grade of not less than ____% per meter toward the point of disposal.
Correct Answer
B. 2%
Explanation
All horizontal piping should be installed in a practical alignment and at a uniform grade to ensure proper drainage. A grade of 2% per meter means that the piping will have a slight slope towards the point of disposal, allowing for efficient flow of waste or water. This slope helps to prevent the accumulation of debris and maintain the integrity of the piping system.
14.
One of the oldest plumbing materials. It is highly resistant and is very suitable to underground installation. But because it is poisonous to human health, it is never recommended to convey water human consumption.
Correct Answer
D. Lead Pipe
Explanation
One of the oldest plumbing materials is lead. It is highly resistant and suitable for underground installation, but due to its toxicity to human health, it is never recommended for conveying water for human consumption. Lead pipes were once commonly used in plumbing systems, but their use has been phased out due to the significant health risks associated with lead exposure, particularly lead poisoning.
15.
The piping must be air-tight, gas-tight, and watertight.
Correct Answer
A. True
Explanation
The statement is true because for the piping to function effectively, it needs to be able to prevent the leakage of air, gas, and water. If the piping is not air tight, it can lead to loss of pressure and reduced efficiency. Similarly, if it is not gas tight, it can result in the release of harmful gases. Lastly, if the piping is not water tight, it can cause leaks and water damage. Therefore, ensuring that the piping is air tight, gas tight, and water tight is crucial for its proper functioning.
16.
A water closet that is otherwise known as "Eastern Type", since the user assumes a squatting position rather than a sitting position.
Correct Answer
B. Squat Bowl
Explanation
The correct answer is Squat Bowl. A squat toilet, also known as an "Eastern Type" water closet, is designed for the user to assume a squatting position rather than sitting. The term "bowl" refers to the shape of the toilet fixture, which is typically round or oval. Therefore, Squat Bowl accurately describes this type of toilet.
17.
Identify the type of URINAL that is mounted on a pedestal or stand
Correct Answer
B. Pedestal Urinal
Explanation
A pedestal urinal is a type of urinal that is mounted on a pedestal or stand, typically with a water supply and drainage system. It is commonly found in public restrooms and is designed for standing use. Unlike wall hung urinals that are attached directly to the wall, a pedestal urinal is freestanding and can be easily moved or adjusted if needed. Stall urinals are typically enclosed in a separate compartment or stall for added privacy. Through urinals are a less common type that have a continuous trough-like design, allowing multiple users to urinate simultaneously.
18.
Identify the type of URINAL that has a trough-like fixture installed along a wall or between partitions.
Correct Answer
D. Through Urinal
Explanation
A "through urinal" is a long, trough-like fixture installed along a wall or between partitions, allowing multiple users to urinate simultaneously. This design is space-efficient and cost-effective for high-traffic areas like stadiums, concert venues, or public restrooms. Through urinals are often made of durable materials such as stainless steel or porcelain and are designed to facilitate easy cleaning and maintenance. They typically have a continuous drain along the bottom to carry away urine efficiently. This type of urinal encourages quick and efficient use, especially during peak usage times, making it a practical choice for busy public facilities.
19.
Identify the type of FAUCET that uses a ball mechanism to control the flow of water.
Correct Answer
C. Ball Faucet
Explanation
A ball faucet is a type of faucet that uses a ball mechanism to control the flow of water. It has a single handle that can be moved in different directions to adjust the temperature and flow rate of the water. The ball inside the faucet has small holes or slots that align with the water supply lines to allow water to flow through. By rotating the handle, the ball inside the faucet moves and changes the alignment of the holes, controlling the water flow. This type of faucet is commonly used in kitchens and bathrooms.
20.
Identify the type of FAUCET that is operated using a key or a wrench.
Correct Answer
B. Key Cock
Explanation
The correct answer is "Key Cock." A key cock is a type of faucet that is operated using a key or a wrench. It is commonly used in industrial settings or outdoor applications where a more durable and heavy-duty faucet is required. Key cocks are designed to provide a secure and reliable flow control, making them suitable for high-pressure systems.
21.
Identify the type of FAUCET that is commonly used to connect a hose for outdoor watering or cleaning purposes.
Correct Answer
D. Hose Bibb
Explanation
A hose bibb is a type of faucet that is commonly used to connect a hose for outdoor watering or cleaning purposes. It typically has a threaded spout to which a hose can be attached and a handle that can be turned to control the flow of water. The other options listed, such as compression cock, key cock, and ball faucet, do not specifically refer to this type of faucet.
22.
A water supply pipe that extends one full story or more to convey water to branches or to a group of fixtures.
Correct Answer
C. Riser
Explanation
A riser is a water supply pipe that extends vertically from one floor to another, typically in a multi-story building. It is responsible for conveying water to branches or a group of fixtures on different levels. The riser connects the main water supply line to the fixtures, ensuring a steady flow of water throughout the building.
23.
Identify the type of FAUCET that uses a rubber washer to control the flow of water.
Correct Answer
A. Compression Cock
Explanation
The correct answer is "Compression Cock". A compression cock is a type of faucet that uses a rubber washer to control the flow of water. It is commonly found in older homes and requires a twisting motion to turn the water on and off. This type of faucet is known for its durability and reliability, but it can be prone to leaks if the rubber washer becomes worn or damaged.
24.
TYPE of TRAPS
Used in lavatories, kitchen sinks, laundry tubs, and urinals. Materials commonly used are nickel, chrome , plated brass and PVC.
Correct Answer
A. P- Trap
Explanation
A P-Trap is a type of trap commonly used in lavatories, kitchen sinks, laundry tubs, and urinals. It is made of materials such as nickel, chrome, plated brass, and PVC. The P-Trap is designed to create a water seal that prevents sewer gases from entering the building through the plumbing fixtures. The shape of the trap resembles the letter "P" and it is installed beneath the plumbing fixture's drain. The water in the trap forms a barrier that blocks the gases from coming up through the drain, ensuring proper sanitation and preventing foul odors.
25.
It is a type of water treatment wherein water is sprayed into the air to release any trapped gases and absorb additional oxygen for better taste.
Correct Answer
B. Aeration
Explanation
Aeration is a type of water treatment that involves spraying water into the air. This process helps to release any trapped gases in the water and allows for the absorption of additional oxygen. This can improve the taste of the water and make it more pleasant to consume.
26.
The vertical distance between a fixture outlet tailpiece and the trap weir can exceed with a minimum of 0.60 m in length.
Correct Answer
B. False
Explanation
The vertical distance between a fixture outlet tailpiece and the trap weir cannot exceed 0.60 m in length.
27.
The physical process in which the sediment particles collide with each other and stick together.
Correct Answer
D. Flocculation
Explanation
Flocculation is the process in which sediment particles collide with each other and stick together. This process helps in the formation of larger particles called flocs, which settle down more easily due to their increased size and weight. Flocculation is an important step in water and wastewater treatment, as it aids in the removal of suspended particles and impurities. It is achieved by adding chemicals called flocculants, which cause the particles to come together and form flocs.
28.
It is a rotodynamic pump that uses a rotating impeller to increase the pressure of a fluid. It is commonly used to move liquids through piping,
Correct Answer
B. Centrifugal Pump
Explanation
A centrifugal pump is a type of rotodynamic pump that uses a rotating impeller to increase the pressure of a fluid. This pump is commonly used to move liquids through piping. Unlike reciprocating pumps that use pistons or plungers to create pressure, centrifugal pumps use centrifugal force generated by the rotating impeller to push the fluid outward and increase its velocity. This increased velocity then converts into pressure as the fluid exits the pump. Centrifugal pumps are widely used in various industries for applications such as water supply, wastewater treatment, irrigation, and chemical processing.
29.
It is a pump used in applications where excess water must pump away from a particular area.
Correct Answer
C. Sump Pump
Explanation
A sump pump is a type of pump that is used to remove excess water from a specific area. It is commonly used in applications such as basements or crawl spaces where water accumulation can occur. The sump pump is typically installed in a sump pit or basin, and when the water level rises, it activates the pump to remove the water and prevent flooding. It is an essential device for maintaining dry and safe conditions in areas prone to water accumulation.
30.
A waterproof receptacle for holding liquids, usually water. It is built to catch and store rainwater.
Correct Answer
A. Cistern
Explanation
A cistern is a waterproof receptacle designed to hold liquids, typically water. It is specifically built to catch and store rainwater. Unlike a regular tank or water tank, a cistern is designed to collect and store rainwater for various uses such as irrigation or household needs. The term "gravity supply tank" does not accurately describe a cistern, as a cistern does not rely on gravity for its water supply.
31.
Identify the type of VALVE that opens by lifting a round or rectangular gate/wedge out of the path of the fluid.
Correct Answer
C. Gate Valve
Explanation
A gate valve is a type of valve that opens by lifting a gate or wedge-shaped barrier out of the path of the fluid. This allows for a full and unobstructed flow of the fluid when the valve is fully open. Gate valves are commonly used in applications where a straight-line flow of fluid and minimal pressure drop is desired. They are typically used in systems that require on/off control rather than throttling.
32.
Identify the type of VALVE
A manually operated valve with its outlet opening oriented at right angles to its inlet opening, used for regulating the flow of a fluid in a pipe.
Correct Answer
D. Angle Valve
Explanation
An angle valve is a manually operated valve that has its outlet opening oriented at right angles to its inlet opening. It is commonly used for regulating the flow of a fluid in a pipe. Unlike check valves, globe valves, and gate valves, which have different orientations for their outlet and inlet openings, the angle valve is specifically designed with a right angle configuration. This allows for easy installation in tight spaces or when the pipe needs to change direction.
33.
Identify the type of VALVE that is designed to allow fluid to flow in only one direction.
Correct Answer
B. Foot Valve
Explanation
A foot valve is a type of valve that is typically used in a pumping system. It is designed to allow fluid to flow in only one direction, preventing backflow. The valve is installed at the bottom of a suction pipe, and it includes a strainer to prevent debris from entering the system. When the pump is turned on, the foot valve opens to allow fluid to be drawn into the system, and when the pump is turned off, the valve closes to prevent backflow. This type of valve is commonly used in applications such as irrigation systems and water wells.
34.
Identify the type of valve that is designed to automatically release excess pressure from a system in order to prevent damage or explosions.
Correct Answer
D. Safety Valve
Explanation
The correct answer is Safety Valve. A safety valve is a type of valve that is designed to automatically release excess pressure from a system in order to prevent damage or explosions. It is typically used in industrial settings, such as in steam boilers or pressure vessels, where there is a risk of overpressure. Safety valves are crucial for maintaining the safety and integrity of a system by ensuring that pressure levels do not exceed the maximum allowable limit.
35.
Identify the type of fitting that is made to fit into a corresponding open or recessed part, used in plumbing or piping systems to connect and secure pipes or hoses together.
Correct Answer
A. Male Nipple
Explanation
A male nipple is a fitting that is designed to fit into a corresponding open or recessed part. It is typically used in plumbing or piping systems to connect and secure pipes or hoses together. The male nipple has external threads that allow it to be screwed into a female fitting or component. This creates a tight and secure connection, preventing leaks or disconnections. The male nipple is commonly used in various applications, such as in water supply systems, air compressors, and hydraulic systems.
36.
Identify the type of fitting that is used to change the direction of the flow of fluid or air.
Correct Answer
A. Return Bend
Explanation
A return bend is a type of fitting used in plumbing and HVAC systems to change the direction of the flow of fluid or air. It is typically a U-shaped pipe or tube that allows the fluid or air to make a 180-degree turn. The return bend is commonly used in systems where space is limited or where a smooth flow path is required. It is different from other fittings like drop elbow, tee, and wye, which serve different purposes in plumbing and HVAC systems.
37.
Identify the type of fitting that is used to create a branch in a plumbing system, allowing water flow to be redirected in multiple directions.
Correct Answer
D. Wye
Explanation
A wye fitting is a type of plumbing fitting that has three openings in the shape of a "Y". It is used to create a branch in a plumbing system, allowing water flow to be redirected in multiple directions. The wye fitting is commonly used in drainage systems to connect horizontal pipes to vertical pipes, allowing for proper drainage and preventing clogs.
38.
Identify the type of fitting that is used to change the direction of a pipe or conduit gradually.
Correct Answer
C. Sweep Fitting
Explanation
A sweep fitting is a type of plumbing fitting that is used to change the direction of a pipe or conduit gradually. It has a curved shape that allows for a smooth flow of fluids or gases through the system. In contrast, a drop elbow is a type of fitting that is used to change the direction of a pipe or conduit abruptly. An elbow fitting is similar to a sweep fitting but has a sharper bend. A cross-fitting is used to connect four pipes at right angles. Therefore, the correct answer is Sweep Fitting.
39.
Identify a device used to block or seal off a pipe opening.
Correct Answer
B. Plug
Explanation
In pipes and plumbing, a plug is a versatile device used to block or seal openings in a system. Whether for maintenance, testing, isolation, or temporary sealing purposes, plugs are essential components that come in various shapes and materials. They facilitate efficient control of liquids or gases within the system, enabling tasks such as pressure testing and troubleshooting while ensuring the integrity and functionality of the overall plumbing infrastructure.
40.
A rubber or metal ring inserted between two mating surfaces to make the joint watertight.
Correct Answer
B. Gasket
Explanation
A gasket is a rubber or metal ring that is used to create a watertight seal between two mating surfaces. It is inserted between the surfaces to prevent any leakage or seepage of fluids, such as water or oil. Gaskets are commonly used in various applications, including plumbing, automotive engines, and industrial machinery, where a tight seal is required to ensure the proper functioning of the system.
41.
The downward slope of a pipe, conduit, or channel, is expressed either as a percentage or in inches per foot.
Correct Answer
A. Fall
Explanation
The downward slope of a pipe, conduit, or channel is referred to as the "fall." It is typically expressed either as a percentage or in inches per foot and is essential for ensuring proper drainage and flow within the system. The fall, measured as the vertical distance over a specified horizontal distance, determines the rate at which water or other fluids can move through the pipe or conduit, preventing issues such as clogging or stagnation.
42.
Liquid sewage that has been treated in a septic tank or in a sewage treatment plant.
Correct Answer
C. Effluent
Explanation
Liquid sewage that has been treated in a septic tank or sewage treatment plant is commonly referred to as "effluent." This term denotes the treated wastewater that is discharged from the treatment process. It is relatively cleaner compared to raw sewage, as it has undergone various treatment processes to remove contaminants and pollutants, making it safer for disposal or reuse.
43.
A sleeve-like device for mixing air with the water flowing from the end of a spigot.
Correct Answer
C. Aerator
Explanation
The sleeve-like device you are referring to is typically called an "aerator." Aerator is a device attached to the end of a spigot or faucet to mix air with the water flow, thereby reducing splashing, conserving water, and improving water pressure. It often contains a fine mesh or perforated screen that breaks the water flow into small droplets, allowing air to mix in and create a more aerated stream. This aerated water flow is beneficial for various purposes such as washing hands, dishes, or vegetables, as it helps in achieving a more efficient and comfortable water usage experience.
44.
A bar attached to a wall near a bathtub or shower to provide hand grip for a person who is bathing.
Correct Answer
C. Grab bar
Explanation
A grab bar is a bar attached to a wall near a bathtub or shower that provides a hand grip for a person who is bathing. It is designed to enhance safety and prevent slips and falls by providing stability and support while getting in and out of the bathtub or shower. The term "grab bar" accurately describes its purpose and function, making it the correct answer.
45.
A flow of a liquid opposite to the usual or desired direction.
Correct Answer
B. Backflow
Explanation
Backflow refers to the flow of a liquid in the opposite direction than what is typically expected or desired. It occurs when there is a reversal of the normal flow direction, often caused by a pressure difference or a malfunction in a system. Backflow can lead to contamination or damage in plumbing systems, water supply networks, or other fluid systems.
46.
A flushable fixture used by men for urinating.
Correct Answer
C. Urinal
Explanation
Urinals are fixtures specifically designed for men to urinate into. They are commonly found in public restrooms, commercial buildings, and some residential settings. Urinals typically consist of a bowl or basin connected to a drainage system, allowing urine to be flushed away with water or another liquid. They are often installed at a convenient height for standing users and may vary in design and functionality. Urinals are preferred in public settings for their efficiency in water usage and space-saving benefits compared to toilets, which are more commonly used for both urination and defecation.
47.
A deep sink used in janitorial work.
Correct Answer
D. Slop sink
Explanation
A slop sink is a deep sink used in janitorial work. It is specifically designed for tasks that involve cleaning or disposing of large amounts of liquid or waste, such as in a janitor's closet or utility room. Unlike a kitchen sink or laundry tray, a slop sink is not typically used for regular household tasks but is instead intended for heavy-duty cleaning purposes.
48.
The expansion joint of pipe and pipe fittings permitting thermal expansion occur in a long run of hot water piping.
Correct Answer
B. Expansion bend
Explanation
An expansion bend is a type of pipe fitting that allows for thermal expansion in a long run of hot water piping. It is designed to absorb the expansion and contraction of the pipe due to temperature changes, preventing damage to the piping system. Unlike a regular bend or elbow, an expansion bend has a flexible joint that can move and adjust as the pipe expands or contracts. This helps to maintain the integrity and functionality of the piping system over time.
49.
A vertical enclosure with a removable cover provides access to a curb cock.
Correct Answer
C. Curb box
Explanation
A curb box is a vertical enclosure with a removable cover that provides access to a curb cock. A curb cock is a valve located in the water supply line near the curb or property line. The curb box allows for easy access to the curb cock for maintenance or repair purposes. It is commonly used in water supply systems to control the flow of water to a property.
50.
Which of the following utilities is primarily responsible for maintaining a comfortable indoor temperature within a building?
Correct Answer
B. HVAC system
Explanation
HVAC (Heating, Ventilation, and Air Conditioning) systems are sophisticated systems designed to control various aspects of indoor environmental conditions within a building, ensuring the comfort, health, and well-being of its occupants. Heating functions raise the temperature in colder weather, while cooling functions lower it in warmer conditions, maintaining a comfortable temperature range throughout the year. Ventilation systems facilitate the exchange of indoor and outdoor air, removing pollutants, odors, and excess moisture while replenishing oxygen levels.