Skip to main content

Group replacement

Select the most correct statement for
Group Replacement System
A. Used in stadium installation
B. Desirable for lower installation costs
C. Following burnout, system is used when lamps are replaced
D. Extends lamp life by operating under voltage

AnswerD. Extends lamp life by operating under voltage. Group replacement is an advantageous maintenance scheme for large areas of lighting with no interim relamping necessary. Individual burnouts are ignored until a critical number is reached. C. refers to spot replacement, relamping when individual lamps no longer function.
ARE 4.0 exam prep: BS

Comments

Try These Too!

Structural forces

Choose a term that best identifies the type of force shown in this diagram - A. collinear B. concurrent C. nonconcurrent D. noncoplanar

Roof pitch

Which one of the following slopes in this illustration corresponds with an 8:12 pitch roof? A. 45° B. 36.87° C. 33.69° D. 26.57°

Bolted connections

What is the minimum spacing of bolts specified by AISC? and preferred spacing? A. 1 1/4 times the diameter of the bolt; 2 times preferred B. 1 3/4 times the diameter of the bolt; 2 1/4 times preferred C. 2 1/3 times the diameter of the bolt; 2 2/3 times preferred D. 2 2/3 times the diameter of the bolt; 3 times preferred E. 3 times the diameter of the bolt; 3.25 times preferred