Semester Review

Non-Metallic boxes are used in _____________installations

• Residential

• Commercial

• Industrial

• School

Romex or type NM cable is used only in ___________wiring applications

• Commercial

• Industrial

• Residential

• Motor Controls

A commercial electrical project will almost always include__________used as a raceway for conductors

• Metal Conduit

• Romex

• Plastic Boxes

• Metal Conduit and Flexible Metal Conduit

When bending EMT conduit a 90 degree bend in a 1/2" conduit requires a take up or deduction of _____________ inches

Service entrance conductors entering a building above the ground through the air from a transformer pole above ground are called "Service _________"

• Laterals

• Connections

• Risers

• Drops

Service entrance conductors entering a building underground from a transforner pad are called "Service ____________"

• Laterals

• Drops

• Connections

• Taps

The "Branch Circuits" originate at the ____________ and feed to the individual circuits.

• Panelboard or Breaker Box

• Meter Base

• Disconnect

• Transformer

OHMS Law states that Voltage (E) equals _______x__________

• Current Times Power

• Current Times Temperature

• Amperage Times Resistance

• Power times Resistance

Resistors in series are totaled using the formula_____________

• R1 +R2+R3+.....

• 1/R1 + 1/R2 + 1/R3 1/Rn

• All resistances are subtracted from the total

• Adding E and R

4 Resistors with value of 100 ohm, 25 ohm, 2k ohm and 1.75 ohm in series will have a total resistance Rt of _____________ohms

• 3500

• 3875

• 38.75

• 3800