Skip to main content

Outdoor lighting

Commonly used outdoor lamps are metal halide (MH) and high pressure sodium (HPS). LEDs are also increasingly replacing them in outdoor applications, such as pedestrian path lighting. The quality of light differs among lamp types and is an important selection criteria considered with efficacy, efficiency, lamp life, and initial cost.

Match the light quality with a lamp type:

I. amber light II. white to bluish white light III. warm white
1. MH 2. HPS 3. LED (3000K)

A. 1=I, 2=II, 3=III
B. 1=III, 2=I, 3=II
C. 1=II, 2=III, 3=I
D. 1=II, 2=I, 3=III




D is correct.
Kelvin scale, at 2000K-4000K is warmer (yellowish), while 10000K becomes cool white or bluish.
are-review.blogspot.com

Comments

Post a Comment

Try These Too!

Interior Glazing

Safety glazing (tempered glass, laminated glass or impact resistant plastic) is not required at this interior window (18sf glazed area). Which of these satisfies conditions for using non-safety glazing? A. Within 36 inches horizontally of a walking surface B. Bottom edge is less than 60" above the plane of the adjacent walking surface C. 1 1/2 in protective bar between 34 and 38 inches on accessible side D. Exposed area of the pane is greater than 9 sf Answer C. 1 1/2 inch protective bar between 34-38 inches on accessible side. In this case, safety glazing is not required. ARE 4.0 exam prep: BDCS
Post a Comment
See the answer »

Imageability

Select 5 components that contribute to imageability , Lynch's concept that posits that a highly imageable city is readily understandable and distinct. A. districts B. social structure C. edge D. landmark E. nodes F. overlapping systems G. paths H. legibility Answer A, C, D, E, G are components that contribute to defining imageability. ARE 4.0 exam prep: PPP
Post a Comment
See the answer »

Truss types

Like the diagonal web members in a Pratt truss, the vertical web members in a Howe truss are in: A. tension B. compression Answer A. tension
Post a Comment
See the answer »