Skip to main content

E-series drawings

How do Home Runs provide graphic clarity on electrical drawings?

AnswerWith an arrowhead and a circuit number, a home run indicates a connection between lights or outlets to a particular circuit breaker in a specific panel box eliminating the need to draw the entire line.

Comments

Post a Comment

Try These Too!

Calculate Luminance

A typical 60-watt standard frosted incandescent bulb outputs 890 lumens for an efficacy ratio of about 15 lumens per watt. As an A19, its shape is spherical. What is the its calculated luminance? A. 25,115 cd/in² B. 25.115 cd/ft² C. 25,115 cd/m² D. Indeterminate, missing variable. Answer If 1 candela (cd) = 4 ∏ lumens (lm), 890 x 1cd/4∏ = 71 cd, A19 = 19/8 = 2.375 in or 60mm diameter (= 30mm radius), L = intensity / projected area, 71 cd / ∏ r² = 71/ 3.14 x (.03m)² = 25,115 cd/m² ARE 4.0 exam prep: BS
Post a Comment
See the answer »

Characteristics of form

Which example illustrates a regular ordering of elements producing RHYTHM? A B C D Answer Answer is C. A = proportion, B = symmetry, D = balance ARE 4.0 exam prep: PPP
Post a Comment
See the answer »

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°
Post a Comment
See the answer »