BU REVIEWER

What is a Vent Pipe?

A pipe that allows air to enter the plumbing system, preventing vacuum and ensuring proper drainage.

What does NFPA stand for?

National Fire Protection Association.

What are distribution pipes?

Pipes that transport water to the sprinklers in a fire protection system.

What is Class B fire?

A class of fire that involves flammable liquids, such as gasoline and oils.

What does PSI stand for?

Pounds per square inch, a unit of pressure measurement in plumbing.

What is a Grease Trap?

A trap installed under kitchen sinks to segregate oil from waste discharge.

What is a Clean Agent System?

A type of fire suppression system recommended for areas with sensitive electronic equipment.

What is a deluge sprinkler system?

A system that releases water from all sprinklers simultaneously.

What is a Sanitary Sewer?

A sewer line or system directly controlled by public authority.

What is Black Water?

Waste water discharged by a water closet or urinal.

What does a monitored fire protection system mean?

It means the system is continuously checked for faults.

What is Natural Surface Water?

Water that is a reliable source only during the wet season and can breed mosquitoes.

What is a Circuit or Loop Vent?

A vent that serves two or more similar fixtures connected to a single horizontal waste pipe.

What is a Trap?

A fitting or device that prevents the entry of foul gas and vermin from the sanitary system to the interior spaces of a building.

What is a Booster Pump System?

A system that provides water during low-pressure hours.

What is a Pendant Sprinkler?

A type of sprinkler that hangs from the ceiling and discharges water downward.

What is a Waste Pipe?

A pipe that conveys the discharge of a water closet, urinal, and bidet.

What is a Double-Tee?

A type of pipe fitting that is not allowed in sanitary installations.

What is Roughing-in?

The installation of all pipes in the plumbing system that are in partitions and under floors.

What is the purpose of Fire Department Connections (FDC)?

To allow firefighters to connect hoses for additional water supply.

What is a Water Heater?

A device that heats water for residential or commercial use, not part of a typical cold water distribution system.

What is a Riser in fire protection?

A vertical pipe that distributes water to various floors.

What is a Wet Standpipe?

A type of standpipe connected to a permanent water supply, typically found in commercial buildings.

What is a Check Valve?

A device that prevents water from flowing backward into the water supply.

Where is a booster pump usually located?

After the main supply line entry in a water supply system.

What is the required testing frequency for fire sprinkler systems?

Annually.

What is the purpose of an air release valve?

To remove trapped air from pipes.

What is the typical pressure range for residential water supply?

40-60 psi.

What is a Unit Vent?

An arrangement of venting in which a single vent serves two traps.

What is a Wet Vent?

A portion of the vent through which liquid waste flows.

What type of valve is used to shut off the main water line?

Gate valve.

What is a common cause of low water pressure in buildings?

High elevation.

What is the primary regulating device for electrical components of the elevator including system programming?

Control panel

What is the measure of the ability of construction assembly of materials including air films?

Thermal conductance

What is a weight balancing another weight to counterbalance the load placed on the hoisting machine by an elevator?

Counterweight

What is a mechanical device used to slow down and stop the elevator car at the end of its travel?

Buffer

What refers to the heat flow rate through a material per unit area per unit temperature difference?

Thermal conductivity

What is the primary function of a transformer?

Transfer electrical energy between circuits

Which electrical device protects circuits from overload?

Circuit breaker

What device converts mechanical energy into electrical energy?

Generator

What is the standard voltage used in residential buildings in the Philippines?

220V

What device is used to measure electrical current?

Ammeter

What is a material that allows electricity to flow easily?

Conductor

Which of the following is an example of an insulator?

Rubber

What is the unit of electrical resistance?

Ohm

What is HVAC?

Heating, Ventilation, and Air Conditioning

What device removes heat from indoor air?

Compressor

What component circulates refrigerant in an HVAC system?

Compressor

Which component releases heat to outside air?

Condenser

What component absorbs heat from inside air?

Evaporator

What is the purpose of ductwork?

Distribute air

Which device controls room temperature automatically?

Thermostat

Which system uses natural air movement?

Natural ventilation

What device protects a circuit?

Fuse

What device distributes electricity?

Panel board

What is the measure of power consumption?

Watt

What type of elevator has a drive machine with an electric motor and pulley-like drive sheave?

Traction elevator

What is the color code used for live/hot wires?

Black

What is a moving platform or cage for carrying passengers or freight from one level of a building to another?

Elevator

What is the measure of the ability of a material to resist heat transfer?

Thermal resistance

What is an opening in which air is introduced into a space?

Duct

What class of fire involves energized electrical equipment?

Class C

What is a system for simultaneously controlling the temperature, humidity, purity, distribution, and motion of the air in an interior space?

Air Conditioning

What is the standard voltage supplied by MERALCO for household use?

220-240V

What is the maximum angle of inclination for an escalator from the horizontal?

30 degrees

What is a small elevator for conveying food, dishes, or other materials between floors?

Dumbwaiter

What is the sub-field of architectural acoustics?

Acoustical engineering

What problem is likely in a room with highly reflective surfaces?

Echo and long reverberation

What could compromise background noise criteria in a building?

Overactive HVAC systems

Which room shape minimizes standing waves and flutter echoes?

Long rectangular room with non-parallel walls

What is creep in acoustics?

Creep is a phenomenon whereby sound travels in a curved surface.

What does acoustic attenuation primarily refer to?

Acoustic attenuation primarily refers to the reduction in sound intensity as it travels.

What unit in lighting is equal to 1 lumen per square meter?

Lux is the unit in lighting that is equal to 1 lumen per square meter.

What type of lighting is best for student residence corridors?

Ceiling-mounted LED panel fixtures are the best type of lighting for student residence corridors.

Who is known as the 'Father of Architectural Acoustics'?

Wallace Clement Sabine is known as the 'Father of Architectural Acoustics.'

What is an electro-acoustic transducer?

An electro-acoustic transducer is a device that transforms electrical energy into mechanical energy, such as an electro-dynamic speaker.

What law describes how illumination varies with distance from a light source?

The Inverse Square Law states that illumination at a point on a surface varies inversely with the square of the distance from the light source.

Which type of lamp is most suitable for dimming and instant-on performance?

LED lamps are most suitable for dimming and instant-on performance.

What type of lighting helps create focal points in design?

Accent lighting helps create focal points in design.

What is the unit of light used to specify light output of sources?

Lumen is the unit of light used to specify light output of sources.

Which lighting type can serve both functional and decorative purposes?

Pendant lights can serve both functional and decorative purposes.

What are non-coated cold cathode lamps?

Non-coated cold cathode lamps are lamps operating at extremely high voltages that can be easily bent into any shape.

What is a characteristic of Pyramid acoustical tile?

Pyramid acoustical tile is tetrahedral in shape and made of open-celled polyurethane acoustical foam.

What are loose fill insulation materials made from?

Loose fill insulation materials are made from cellulose, fiberglass, rock wool, cotton, or other materials.

What is carpet in acoustics?

Carpet is a soft floor finish made of synthetic or natural materials, glued directly to the floor or installed over an underlayment.

What component of a fluorescent lamp corresponds to a filament in an incandescent lamp?

The cathode corresponds to a filament in an incandescent lamp.

What does reverberation time refer to?

Reverberation time refers to the time it takes for sound to fade away after the source stops.

What does speech intelligibility depend on in room acoustics?

Speech intelligibility depends most on reverberation control and signal-to-noise ratio.

What is the most important acoustic property in a recording studio?

Balanced absorption and diffusion are the most important acoustic properties for ensuring accurate sound reproduction.

What device is used with fluorescent lamps to provide starting voltage?

A ballast is used with fluorescent lamps to provide the necessary starting voltage and limit current during operation.

What is the main advantage of tubular daylighting devices (TDDs)?

The main advantage of TDDs is that they bring natural light to interior spaces far from windows.

What material is generally used to manufacture acoustical baffles?

Acoustical baffles are generally made from open cell melamine acoustical foam.

What does acoustics concern?

Acoustics is a science that concerns the transmission, effect, and generation of sound.

What is an example of resonance absorption?

A plate or confined volume of air vibrating is an example of resonance absorption.

What acoustical material absorbs a wide range of frequencies?

Polyurethane foam sound absorber is made of Open Cell Polyurethane Acoustic Foam designed to absorb a wide range of frequencies.

Which material is a good sound absorber?

Carpet is a good sound absorber.