Lighting and Irrigation Design

Question 1

Best lighting fixtures for small residential

Answer 1

Low-level landscape lights

Question 2

Best lighting fixtures for pedestrian spaces

Answer 2

Intermediate height landscape lights

Question 3

A quantitative unit of measurement referring to the total amount of light energy emitted by a light source, without regard to the direction or its distribution

Answer 3

Lumen

Question 4

Lumen

Answer 4

A quantitative unit of measurement referring to the total amount of light energy emitted by a light source, without regard to the direction or its distribution

Question 5

A US unit of measurement referring to incident lighting. Can be derived from lumens or candelas.

Answer 5

Foot candles
1fc = 1 lumen/sq.ft

Question 6

Foot candles

Answer 6

A US unit of measurement referring to incident lighting. Can be derived from lumens or candelas.

Question 7

The unit of intensity of a light source in a specific direction. When directed perpendicularly to a surface, 1 foot away, generates 1 foot candle of light

Answer 7

Candlepower / Candela

Question 8

Candlepower / Candela

Answer 8

The unit of intensity of a light source in a specific direction. When directed perpendicularly to a surface, 1 foot away, generates 1 foot candle of light

Question 9

Light, leaving a surface, whether due to the surface is reflectance, or because it is the surface of a light emitting object (like a lightbulb). The measurable form of brightness, which is a subjective sensation.

Answer 9

Luminance

Question 10

Luminance

Answer 10

Light, leaving a surface, whether due to the surface is reflectance, or because it is the surface of a light emitting object (like a lightbulb). The measurable form of brightness, which is a subjective sensation.

Question 11

Efficacy

Answer 11

A measure of how effectively a lamp converts electric power into light energy, without regard to the effectiveness of its illumination.

Question 12

Lighting strategies to reduce vandalism at a residential property

Answer 12

Light the facade
Light the front door

Question 13

Term to describe light leaving a surface, whether due to the surface reflectance, or because it is the surface of a light-emitting object (like a light bulb). This is the measurable form of brightness

Answer 13

Luminance

Question 14

Term for a measurements referring to incident light and can be derived from lumens

Answer 14

Footcandle

Question 15

Three main types of irrigation emission devices

Answer 15

rotor, spray and drip

Question 16

The primary purpose of this piece of the irrigation system is to protect the system from a line break by shutting off the water to the irrigation system when none of the zone valves are operating.

Answer 16

master valve

Question 17

an automatic valve that is installed at the point where the irrigation system connects to the water supply (after the backflow preventer)

Answer 17

master valve

Question 18

Valves which are typically manually operated devices, placed at critical junctures along the irrigation mainline.

Answer 18

Isolation valves

Question 19

Valves communicate with the irrigation controller to regulate the flow of water within a specific irrigation zone.

Answer 19

Control valves

Question 20

What are quick coupler valves used for in an irrigation system

Answer 20

quick coupler valves can be used to connect a hose to the irrigation system, thereby providing maintenance workers with access to water in the landscape.

Question 21

Answer 21

Quick coupler valve detail

Question 22

Answer 22

Control valve for drip irrigation

Question 23

Answer 23

Isolation Valve

Question 24

Three basic objectives of landscape lighting

Answer 24

safety, security, aesthetics

Question 25

What does a transformer do

Answer 25

Transformers change the voltage from the main power source to supply a lighting fixture with either a lower or a higher voltage. Typically, they are used to convert 120V “line” voltage for use in a 12V (or 24V) low-voltage system.