Fundamentals of lighting

Select the best response for defining the relationship between a footcandle(fc) and lux(lx).

Footcandle and lux represent a unit of illuminance. Lux is the unit that belongs to the international system of units (SI)

Which device detects the amount of illumination in the space and then sends signals to control electrical light sources?

Photosensor

Which group of items should be included on a lighting plan?

The location of luminaires, switches, and control loops

What information should be included on a reflected ceiling plan?

The location of luminaires, switches, control loops, architectural elements, and any HVAC equipment

Select the best response for defining the angle of incidence.

The rays of light emitted from a light source before striking an object or surface

The service cable connects to the main breaker

True

Dedicated circuits are individual appliances circuits that draw enough current to warrant their own circuits.

true

Lights in kitchens and baths must be permanently wired rather than plug-in type.

true

The most common cable for residential housing is Romex

true

A garbage disposer runs with _________________________volts

120

Microwave oven runs with ____________________________volts.

120

The gauge of the wire determines the size of the wire. Which of the wires is the smaller diameter?

16

Most large appliances take _____________amps

20

A residential home today would best be suited with __________________amps.

200

An electric water heater runs with ________________________________volts

240

The service entrance cable consists of _______________________wires

3

The GFCI is used anywhere with in ________________________of water.

6 feet

The power formula is

A = W/V and W = VA

Lamps for facial grooming should have:

A CRI rating of 100. The desired color temperature of the lamp can vary with ethnicities

Select the best response for defining the body's circadian rhythm.

A biological function that coordinates sleeping and waking times through hormones and metabolic processes

The eye's field of vision includes:

A central and peripheral area

Identify what is meant by persistent, bioaccumulative, toxic (PBT).

A classification that indicates a material is toxic, remains in water or land indefinitely, and accrues in the world's ecosystem 28

Illuminating stairs requires:

A clear distinction between risers and treads

Select the best response for describing seasonal affective disorder (SAD).

A condition appearing to be associated with an individual's inadequate exposure to sunlight

Select the best definition of the function of a ballast.

A control device that starts a lamp and controls the electric current during operation

Select the best definition for a ballast.

A control device used with an electric-discharge lamp that starts a lamp and controls the electrical current during operation

Which of the following occurs during the conceptualization process of the schematic design phase?

A lighting designer and other professionals involved in the project engage in a comprehensive brainstorming process

Select the best response for defining a baffle.

A linear-shaped unit of a luminaire designed to shield light from view

An occupancy sensor could be most effective in which space?

A restroom that is used rarely

Which of the following describes the toxicity characteristic leaching procedure (TCLP)?

A test developed by the EPA to measure the mercury content of lamps

There are two types of current flow.

AC and DC

Important energy standards and codes that affect lighting efficiency are:

ASHRAE/IESNA 90.1-2007, MEC, and IECC-09

Identify the term that is used to describe when the eye alters itself to the amount of brightness that is entering the pupil.

Adaptation

One way to add circuits to and already full service panel would be

All the answers

Interview and survey questions should always include:

An assessment of the present situation and anticipated future needs

Select the best definition of a transformer.

An electrical device that converts voltages in a system

What are the purposes of postoccupancy evaluations?

Assess the effectiveness of the lighting design, conduct modifications whenever possible, and acquire information that can be used to improve future projects

Select the best response for the most important concerns regarding luminaire installations

Clearance space for recessed luminaires, weight, mounting provisions, and the location of insulation

The phase for collecting data is

Comprehensive programming

Select the best response for creating accent lighting.

Creating contrast and specifying the best angle to position a light are key to effective accent lighting

Which term describes when light is directed from the right and left of a task or object?

Cross-lighting

Identify the best response for designing a sustainable commercial lighting plan.

Minimize the impact on the local and global environment

Select the light source most effective for enhancing visual acuity.

Daylight

Identify the definitions of disability glare and discomfort glare.

Disability glare: A distracting high illuminance level that prevents one from seeing Discomfort glare: A distracting high illuminance level that makes it difficult to see

According to research, the integration of daylight has improved people's behavior in which commercial buildings to?

Educational classroom and offices

Which of the following is the best group that identifies some of the factors that affect a person's ability to perform a task or view an object?

Glare, contrast, colors, illumination levels, and the physical condition of eyes

Identify some of the results of direct sunlight in an interior.

Glare, excessive heat, fading of materials

What is a GFCI?

Ground Fault Circuit Interrupter

What is the name of a luminaire that is cone-shaped and designed to accommodate the shape of HID light sources?

HID high-bay

Which of the following lists the primary purposes of planning a project?

Identify a profile of the project and determine resources required to complete the objectives

To encourage customers to walk to all areas of a store, which of the following is the best lighting technique?

Illumination of the perimeter walls

Select the best response for the term that is used for the illuminance that is lost resulting from the type of lamp, ambient temperature of the space, time, input voltage, ballast, lamp position, interior conditions, and burnouts.

Light loss factor (LLF)

Because it is a transitional space, which one of the following is an important consideration when lighting a hallway?

Light must accommodate people moving through the space

Which formula would you use to determine the average illuminance in a space?

Lumen method

An interior designer would like to specify a luminaire that provides most of the light on a desk and some of the illumination on the ceiling. Which of the following luminaires would be the best solution?

Luminaire with a semidirect distribution of light

Which of the following groups best represents the basic elements of a lighting system?

Luminaire, the light source, housing elements, ballasts, transformers, controls, a mounting mechanism, and a connection to electrical power

What information should be included on an electrical plan?

Luminaires, switches, outlets, junction boxes, auxiliary units, and wiring for controls

Which of the following lamps are considered high-intensity discharge?

Mercury, metal halide, and high-pressure sodium

Identify the term that is used to describe the science that examines the interactions of light with living organisms.

Photobiology

Which formula would you use to determine the footcandle level for a sculpture?

Point-by-point method

Select the list of items best associated with sustainable design.

Pollution prevention, multiple and systematic effects, an environmental lifecycle assessment (LCA), magnitude of impact (local and global), and specification of environmental attributes

Which of the following presents some of the primary goals of retail lighting?

Project an image to consumers, attract customers to the store, and focus attention on merchandise

The items that take the most power are

Range, Oven, Electrical water heater

Which of the following is an example of load shedding?

Reducing illumination needs during peak times

Which of the following is a contract working drawing that illustrates the design of the ceiling, including the location of luminaires, switches, control loops, architectural elements, and any HVAC equipment?

Reflected ceiling plan

The electrical supple cable connects to the electric meter and continues into the home to the main

Service Panel

To efficiently see signage and the geometry of the space, illumination levels used in an elevator and adjoining areas:

Should be comparable

Lighting research has focused on the characteristics of natural and electric light sources and their behavioral and psychological effects on people. Which of the following groups best represents the most common topics?

Specific lamps, CRI, color temperatures, quantity of light, intensity, spectral composition, and distribution patterns

Which of the following is not a major consideration in The U.S. Energy Policy Act of 1992 (EPAct-92)

Standards for international exchange programs

What are Junction boxes?

The containers that house the terminal points of wires and serve as access points for devices

Which of the following best describes a coefficient of utilization (CU)?

The CU indicates the ratio of initial lamp lumens to the lumens on a work surface

Select the response that best describes the perceived color of an object

The absorption and reflectance properties of a light source and object determine a perceived color.

Light therapy has been successful in helping to regulate the biological clock. What is the biological clock associated with?

The body's circadian rhythm

Identify one of the major concerns related to lighting entries and foyers

The illumination levels must be adjusted for daylight and evening hours

Select the best response for describing layered lighting.

The integration of natural light and multiple electrical sources

Natural light differs from indirect natural light in that

The light is directly from a source

If the electrician has installed two switches for one light fixture what kind of switch is it?

Three way

Generally, which of the following factors affect the wavelengths of daylight?

Time of day, sky conditions, time of year

Which of the following lists the primary purposes of the design development phase?

To work through the details of the conceptual lighting design and produce presentation mediums and specifications to present to the client for approval

Which of the following is NOT a basic unit of measurement for lighting?

Zonal flux