BUILDING UTILITIES QUIZ#7

Intermittent Sound

It is a sound which is discontinuous or fluctuates to such an extent that at times its sound pressure level falls below a measurable level.

10% Of Floor Area

Rooms intended for any use, not provided with an artificial ventilation system, shall be provided with windows with a total area of at least ________ of the room.

Light Shelves

It projects beyond the window face and reflects the sunlight upwards to illuminate the ceiling.

Empty Wall

Material with the highest STC rating

Shielded

A type of light fixture that uses diffusers, lenses and louvers to cover bulbs from direct view to prevent glare and distribute light

Acoustics affects the design of a building by considering sound

How does acoustics affect the design of a building?

STC (Sound Transmission Class) is a rating system used to measure the soundproofing capabilities of a material or structure.

Explain the concept of STC (Sound Transmission Class) in soundproofing.

All of the above

What are the advantages of using foam insulation in building construction?

• It provides excellent soundproofing.

• It is easy to install.

• It improves energy efficiency.

• All of the above.

By using sound-absorbing materials, reducing background noise, and optimizing the room's layout and furniture arrangement.

How can acoustics be improved in a room or building?

Break in Noise

It is the transfer of noise from a space surrounding the duct into the duct through duct walls.

Diffusion

Scattering or random redistribution of a sound wave from a surface

Background Noise

It is also called ambient noise.

Architectural Acoustics

It is the art and technique of designing spaces, structures and mechanical systems to meet hearing needs.

All Of Them

What are the components of daylighting?

Break out Noise

It is the transfer of noise from the interior of a duct through duct walls into a space outside the duct.

Perimeter Lighting

A daylighting method that uses windows and light shelves.

Robotics in Architecture

It refers to the integration and application of automated machines - or robots - into architectural design processes and construction, fundamentally transforming how architects create and execute their projects.

Artificial

A lighting source that closely replicates natural sunlight can be considered as a light source.

Undue Focusing of Sound

It is caused by concave surfaces which cause sound to converge at certain points with resulting loss of energy in other parts of the room.

750Mm

Eaves, canopies and awnings over required windows shall not be less

than ____ from the side and rear property lines.

Demand For Green Or Sustainable Design In Buildings.

Why the need for Daylighting?

Resonance

It is the reinforcement of certain sound frequencies due to sympathetic vibrations. This is especially the case in enclosed rooms with highly reflective surfaces.

Color rendering refers to the ability of a light source to accurately reproduce the colors of objects.

What is the concept of color rendering in lighting design?

1/20

Toilets and bathrooms shall be provided with windows with an area not less than _____ of the floor area of such room.

Sound Pressure Level

Sound pressure converted to the decibel scale

Lenses

A type of light fixture with clear, transparent glass, and plastic covers;

that incorporates prisms and flutes to distribute light in specific ways

Daylighting

It is the placement of windows or openings and reflective surfaces so that sunlight can provide effective lighting to the building interiors.

Sound Power

The sound energy transferred per second from the noise source to the air.

Louvers

A type of light fixture with baffles that shield the bulb from view and

reflect light; can be contoured to control light and decrease brightness.

Clerestories

It is an upper zone of wall pierced with windows that admit light to the center of a lofty room.

Accent

Directional lighting to emphasize a particular object or draw attention to a display item.

Dead Room

It is a room containing an unusually large amount of sound absorption.

North

Where would you orient the skylight to achieve soft, cool, and uniform illumination?

Daylight

The most practical method of passive solar energy utilization in commercial buildings

Light Tube

It is a device placed into a roof and admits lights to a focused area of the interior.

Pitch

It is the frequency of sound waves perceived by the human ear.

All Of Them

What are the benefits of natural light?

• Improved Mood And Morale

• Reduced Eye Strain

• Less Fatigue

• All Of Them

Light Well

It is a shaft within a building, open to the outer air at the top, used to admit daylight through windows opening.

Diffraction

It is the bending or “flowing” of a sound wave around an object or through an opening

Monitor

It is a raised section of a roof and usually straddling a ridge, has openings along the sides to admit light or air.

Skylights

These are horizontal windows, or roof lanterns placed on the roof and used to admit light to the spaces below.

Flutter Echo

It is caused by repetitive reflections off hard surfaces

Top Lighting

A daylighting method that uses skylights, clerestories, and monitors.

Creep

It is a buzzing/clicking sound comprised echoes traversing back and forth between two reflective surface

Up To 9.00M

How many meters from the window does the room have partial daylighting and require artificial lighting?

General

Provides an area with overall illumination; provides fairly uniform lighting

Too Much Lighting On The Top Floors.

Which of the following is not an advantage of using atrium or light well in designing buildings.

• Too Much Lighting On The Top Floors.

• Brings Light To Different Floors.

• Enough Lighting To Lower Floors

• All Of Them

Metal Halide

Type of lighting used in billboards

Absorption

Absorbs sound and transmits excess sound to the next room

Core Lighting

A daylighting method that uses atrium and light wells.

Ellipse

Sound reflected on two-focus points

1000Mm

What is the minimum clear height of a window if it will be used as emergency egress to vacate the premises?

General Diffuse

Has an upward and downward light distribution of equal percentage.

Acoustics

What is the science of sound, including the generation, transmission & effects of sound waves ?

Diffusers

A type of light fixture with translucent or semi-transparent (see-through) covers made of glass or plastic; bottom or sides of light fixtures to control brightness

Insulation

Absorbs sound and keeps it too (thermal storage)

Horizontal Louvers

Southern orientations are relatively easy to shield from direct solar penetrations by using ________.

Ballast

It is a device used to provide the required voltage & operating current for a fluorescent lamp.

Optical Lighting

A daylighting method that uses fiber optics, prisms, mirrors, and parabolic reflectors.

Reverberation

What do you call the prolongation of sound caused by persistence of sound energy within a room for a certain period of time ?