CORREL_Building Utilities

What is the total power dissipated in a circuit with a line resistance of 4.60 ohms and an ampere rating of 52.17A?

The biggest drawback of this centralized AC system type is the difficulty in providing adequate indoor air quality. What is this type of centralized AC system?

What form of electricity exists when there is a build-up of opposite charges on objects separated by an insulator?

How many lumens does one candela emit in a steradian?

The power of the original sound source along with distance of measurement from the sound source combine to form the ___ of sound.

What is the primary function of a governor in an elevator system?

What heat exchange process occurs when a fan blows air across the hot coils of an AC unit releasing heat to the outside air?

It is the ratio of the sound energy that passes through a material to the amount of sound energy that hits the material

Which HVAC system is best suited for a high-rise building in a temperate climate?

What is the geometric shape of a hall provides a low degree of laterality of sound?

Which of the following technologies has significantly contributed to the increased speed and efficiency of modern elevators?

If the resistance of a circuit increases while the voltage remains constant, the current will:

A resistor with a resistance of 10 ohms is connected to a 24-volt battery. What is the power dissipated by the resistor?

What factors should be considered when sizing an HVAC system for a building?

Which elevator door type will you recommend to permit simultaneous loading and unloading to reduce passenger transfer time and avoid discomfort?

Which type of fire detector is most sensitive to smoldering fires?

What is the primary component of a DX system that directly interacts with the refrigerant?

Which type of fire extinguisher is suitable for Class B fires involving flammable liquids?

Which of the following is a critical factor to consider when selecting a fire suppression system for a museum with a large collection of artwork on canvas?

What is a potential disadvantage of escalators in crisscross arrangement?

What is the primary disadvantage of fluorescent lighting?

What is the ideal speed for an escalator in a shopping mall?

What is the primary concern associated with elevator bi-parting doors in high-traffic areas?

The coefficient of performance (COP) of a refrigeration system is defined as:

What is the term for the ratio of reflected light to incident light?

What is the key advantage of pre-action sprinkler systems?

Which escalator arrangement is best for creating a dramatic vertical connection between floors?

In a direct-expansion HVAC system, how is heat transferred from the indoor space to the refrigerant?

It is a type of fire alarm system when each fire detection or signaling device is assigned a unique coded frequency.

Convenience outlets, though counted as part of the general lighting load, shall be limited to outlets on a 20-ampere circuit.

What is a potential drawback of using a water mist system in a museum. with high ceilings and large open spaces?

What is the principle of layering light?

Which of the following components is used to reduce the pressure of the refrigerant in a vapor compression system?

What is the primary advantage of using an elevator center-opening door in a commercial building?

Which of the following is NOT a common type of water treatment process?

What is the primary factor influencing the design of a fire sprinkler system?

What is the significance of the spectral locus on the CIE chromaticity diagram?

What is the primary advantage of a decentralized water heating system?

What is the maximum slope allowed for an escalator?

What is the purpose of a fuse or a circuit breaker in an electrical distribution system?

What is a potential disadvantage of gas-based fire suppression systems?

Which of the following is NOT a common technique for reducing noise transmission through a floor-ceiling assembly?

What type of pipe fittings should be used to connect the drain pipe of a lavatory to the stack pipe?

A type of elevator machine consisting of a dc or ac motor, the shaft of which is directly connected to a brake wheel and driving sheave; more efficient, and has longer life.

Reverberation time is primarily influenced by which of the following factors?

This vent provides circulation of air between drainage and vent system; serves to ease pressures of a specific area of a system.

What is the primary function of a building envelope?

Which escalator arrangement is often used in department stores and shopping centers?

A type of standpipe that is filled with water at all times, is connected to a permanent water supply that is capable of meeting flow and pressure requirements.

It is recommended that the surfaces of the front part of an auditorium to reinforce direct sound and throw it to the rear must be highly of the room.

What is the minimum size of a hose connection for a Class I standpipe system?

Which sound reflections help us understand speech?

What treatment will you recommend for a room to produce a more sound and contribute to enhance ambience in a room?

In this automatic sprinkler system type, the compressed air rushes out, allowing water to enter the pipe system through a dry-pipe valve as soon as the sprinkler heads open.

The lobby width between two barks of service elevators should not be less than __ meters.

What is the primary purpose of a Siamese connection on a standpipe system?

How does the human eye accommodate to focus on objects at different distances?

The process by which the human eye adjusts its sensitivity to different light levels is known as:

The minimum sizes of a hose connection for a Class III standpipe is:

What is the primary function of a siphon jet water closet?

What is the critical distance in room acoustics?

Which type of circuit breaker is commonly used in residential and commercial applications?

What parts comprise the indoor unit of the split-type air conditioning systems?

A school classroom measuring 24' x 30' is lighted with 10-40w fluorescent lamp. Calculate the initial and maintained illumination in foot candle with the following variables: UF-0.35, MF-0.70, 80 lumens/watt/lamp.

This lamp technology produces light by passing an electric current through a gas that emits light when ionized by the current.

Circuit breakers and fuses are typically classified based on their:

A basic element of an incandescent bulb is the filament which is usually made of

They are sounds that arrive within 50 milliseconds (0.055) of the direct sound; they are integrated with the direct sound, thus, increasing intelligibility.

What is the primary factor that determines the type of roping arrangement in an elevator system?

A vent located on the highest branch interval; typically does not require a relief vent, and connects to the stack vert and not to the vent stack.

What is the primary purpose of sound diffusers in a room?

What is the primary purpose of a trouble signal in a fire alarm and detection system (FDAS)?

What is the primary function of an electrical receptacle?

What is the potential drawback of using fan-coil units (FCUs) in a large building?

This type of water closet is designed for the low pressure and water velocity of close-coupled tank; the water enters the bowl off-center extremely quiet making it ideal for toilets adjoining sleeping areas.

In a residential setting, what color is typically used for the hot wire connected to a light switch?

This class of standpipe system is used as first aid fire appliances by building occupants and firefighters for fire suppression and during mop-up operations; designed for 100gpm and 65psi outlet pressure.

A method where water is distributed through normal water pressure from public water main for use in low rise buildings.

Which type of photoreceptor cell in the human eye is primarily responsible for color vision and fine detail?

In a commercial building, what color is often used for the neutral conductor in a 240V circuit?

The primary function of the evaporator in a vapor compression refrigeration cycle is to:

What is the primary factor that influences the perceived brightness of a light source?

What is the Sabine formula used to calculate?

What is the minimum number of steps required in the landing platform of an escalator system?

What is the purpose of busbars in a switchboard?

Which of the following components is used to reduce the pressure of the refrigerant in a vapor compression system?

What is the relationship between sound transmission loss and sound insulation?

What is the role of a fire alarm control panel in an addressable fire alarm system?

Which type of roping arrangement is most commonly used in high-rise buildings?

Which of the following is NOT a primary factor affecting sound transmission loss through a wall assembly?

In a facility, where would you typically find a switchgear assembly?

The primary purpose of the condenser in a vapor compression refrigeration system is to:

Which of the following factors can affect the sound transmission loss of a window?

How does a coded fire alarm system differ from a conventional system?

What is the difference between a point-type smoke detector and a line- type smoke detector?

Which type of water closet is most commonly found in commercial and institutional settings?

An office measuring 8 x 20 meters should be lighted at a maintained 50fc. How many 40watt-fluorescent lamps are needed assuming UF-0.38, MF-0.75, 80 lumens/watt/lamp are the given factors?

Incorporating day lighting design can be done by:

HVAC system that treats air at a central location and distribute the conditioned air to the entire building

The owner hired an electrician to prepare and install the electrical wiring for his house, the electrician, with the owner's consent, decided to use larger size of wiring for the circuit breaker to anticipate overloading. After some time, the house was on fire, after the investigation, it was proven that the cause of the fire was faulty electrical wiring. Why did the circuit breaker fail to detect the short circuit/overloading?