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WorksheetsBuilding Utilities Quiz Bee
Total questions: 25
Worksheet time: 13mins
What is the standard nominal voltage requirement for single-phase electrical outlets in residential buildings in the Philippines?
110 Volts
180 Volts
230 Volts
380 Volts
What does the abbreviation FD signify on floor plans for a building's sanitary system?
Fire Damper
Fresh Drain
Fixture Discharge
Floor Drain
What is the minimum diameter of the main soil pipe connecting a water closet (toilet) to the building drain in the National Plumbing Code of the Philippines?
50 mm (2 inches)
75 mm (3 inches)
100 mm (4 inches)
150 mm (6 inches)
In the Philippines, what is the term for a pipe that carries the discharge from fixtures and connects to the house drain or building sewer?
Vent Stack
Riser
Soil Pipe
Conductor
What common type of lamp, known for its high energy efficiency and long life, has largely replaced incandescent bulbs in homes?
Halogen
Fluorescent (CFL)
High-Pressure Sodium (HPS)
Light Emitting Diode (LED)
In a typical septic tank, which compartment receives the wastewater directly from the plumbing system?
Distribution Box
Leaching Chamber
Outlet Chamber
First/Inlet Chamber
What mandatory device is installed at every plumbing fixture, except a water closet, to prevent the backflow of sewer gas into the house?
Gate Valve
Cleanout
Check Valve
Trap (P-trap)
What is the standard unit of measurement for illumination or light intensity on a surface?
Lumen
Watt
Candela
Lux
What is the primary function of a downspout in a roof drainage system?
To collect and filter rainwater.
To prevent roof leaks.
To carry rainwater from the gutter down to the ground or drainage system.
To vent sewer gases from the roof.
According to the National Building Code (NBC) Amended Rules and Regulations in the Philippines, which color is generally designated for piping systems carrying Fire Service Water?
Orange
Blue
Yellow
Red
According to the Philippine Electrical Code (PEC), what is the maximum number of outlets allowed on a 15-ampere branch circuit in a residential installation?
8 outlets
10 outlets
12 outlets
Unlimited, as long as the load is within 80% capacity
What is the standard slope or gradient requirement for horizontal drainage pipes (house drain) to ensure proper gravity flow, as per the National Plumbing Code?
1% or 10 mm per meter
2% or 20 mm per meter
3% or 30 mm per meter
4% or 40 mm per meter
What is the term for a standpipe system that is permanently connected to a water supply and has water in the pipes at all times for immediate fire use?
Siamese System
Auxiliary Standpipe
Wet Standpipe
Dry Standpipe
The abbreviation CO is commonly used in plumbing plans to denote a fixture or access point essential for maintenance. What does CO stand for?
Conduit Outlet
Compression Object
Cold Overflow
Cleanout
What is the common term for the device installed on the main water line of a building to prevent the reversal of flow from the customer's water system back into the public water supply?
Pressure Relief Valve
Water Hammer Arrester
Gate Valve
Backflow Preventer
For emergency power, what is the minimum duration required for an emergency light unit to operate when the main power fails, according to the Fire Code of the Philippines?
30 minutes
60 minutes (1 hour)
90 minutes (1.5 hours)
120 minutes (2 hours)
What is the required minimum size of the vent stack or main vent for a building's plumbing system, according to the National Plumbing Code?
The same diameter as the largest soil stack.
25 mm (1 inch) minimum.
Half the diameter of the soil or waste stack, but never less than 32 mm..
50 mm (2 inches) minimum.
What type of cable is required by the PEC to be installed in a tray and is generally used for power, control, and signal circuits in commercial and industrial applications?
Nonmetallic-Sheathed Cable (Type NM)
Thermoplastic-Covered Wire (Type THW)
Metal-Clad Cable (Type MC)
Service Entrance Cable (Type SE)
What is the main function of a surge arrester in a building's electrical system?
To regulate and maintain a constant voltage level.
To interrupt a circuit when a sustained overload occurs.
To protect electrical equipment from transient over voltages caused by lightning.
To measure power consumption.
How is the required size of a domestic water cistern (storage tank) for a residential building often determined, in relation to the average daily water consumption?
Half a day's worth of consumption.
Three days' worth of consumption.
1 to 2 days' worth of average daily water consumption.
Determined only by the peak hourly demand.
In designing a wastewater disposal system using a leaching field, what soil property is critical to determine the required area for absorption?
Soil Density
Soil pH Level
Percolation Rate
Bearing Capacity
What is the maximum permissible voltage drop (in percentage) allowed from the service equipment to the farthest outlet of a lighting branch circuit, according to the Philippine Electrical Code (PEC)?
2%
3%
4%
5%
What is the term for the pipe that runs vertically up from the drainage system to a point above the highest fixture, providing atmospheric pressure and is primarily used for the entire building?
Waste Vent
Circuit Vent
Yoke Vent
Vent Stack
When calculating the cooling load for an air-conditioning system, which of the following is considered part of the Latent Heat Gain?
Heat from lights and equipment.
Heat conducted through walls and glass.
Heat from solar radiation through glass.
Moisture added to the air by people and infiltration.
What is the name of the curve or chart used in plumbing design to convert the total number of Fixture Units (FU) in a water supply or drainage system into the estimated flow rate (GPM or LPS)?
Moody Diagram
Manning's Formula
Hunter's Curve
Bernoulli's Equation
