Skip to main content

Electrical circuits

A circuit that feeds a motor must be oversized so that the rated load of the motor is not more than 80% of the capacity of the circuit. NEC requires that for single motor installation, the current used in the wire size calculation must be _____ times the load current from the applicable single-phase or 3-phase tables.
Answer1.25 times (1 / 0.80)

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