ICC Electrical Systems and Safety 2

Question 1

In Illinois, what is the maximum voltage permitted for temporary wiring used during construction?

Accepted Answer

600V

Answer

120V

Answer

240V

Answer

There is no maximum for temporary wiring

Question 2

Which type of conduit is required in areas exposed to physical damage in Illinois commercial buildings?

Accepted Answer

Rigid Metal Conduit (RMC)

Answer

PVC Schedule 40

Answer

Electrical Metallic Tubing (EMT)

Answer

Flexible metallic conduit

Question 3

What is the purpose of an equipment grounding conductor in an electrical circuit?

Accepted Answer

To provide a low-impedance fault path that trips the breaker

Answer

To carry the neutral return current

Answer

To increase circuit capacity

Answer

To reduce electricity bills

Question 4

Before excavating near underground utilities in Illinois, contractors are legally required to call:

Accepted Answer

JULIE (811 — Joint Utility Locating Information for Excavators)

Answer

The local fire department

Answer

OSHA directly

Answer

The property owner's insurance company

Question 5

What does the term 'bonding' mean in electrical installations?

Accepted Answer

Joining metallic parts to ensure electrical continuity and conductivity

Answer

Connecting two wires with tape

Answer

Installing a second breaker panel

Answer

Coating wires with anti-corrosion spray

Question 6

Arc Fault Circuit Interrupters (AFCIs) are required in Illinois residential bedrooms to protect against:

Accepted Answer

Electrical fires caused by arcing faults in wiring

Answer

Overloads only

Answer

Power surges from the utility

Answer

Voltage drops in the circuit