PEC Sample Quiz 1

The main purpose of the Philippine Electrical Code (PEC) is:

• To maximize efficiency of electrical systems

• To safeguard persons and property from electrical hazards

• To reduce construction costs

• To improve power quality

Which of the following is NOT included in the scope of PEC?

• Public and private buildings

• Industrial plants

• Energy management and power quality issues

• Watercraft

Which of the following is NOT an electrical plan requirement?

• Load schedule

• One-line diagram

• Short-circuit study

• Owner’s tax ID number

A conductor in continuous duty application for motors is derated by applying:

• 100% FLC

• 115% FLC

• 125% FLC

• 150% FLC

A conduit run has bends of 90°, 90°, 45°, and 45°. According to PEC:

• Permitted

• Not permitted

• Requires approval of PRC

• Requires oversized conductor

In interpretation disputes of PEC, the final decision rests with:

• The contractor

• The PEC Part 1 Committee

• The Board of Electrical Engineering

• The OBO

“Current-limiting circuit breakers” are designed to:

• Reduce resistance

• Prevent short-circuit current from reaching its peak value

• Increase voltage stability

• Improve insulation strength

A PVC conduit larger than metric designator 155 (trade size 6) is:

• Allowed only underground

• Not permitted

• Allowed only with copper conductors

• Permitted in industrial plants

Which PEC rule classification deals with motor nameplate markings?

• Installation rules

• Manufacturing rules

• Wiring design rules

• Explanatory rules

The ampacity of conductors depends on:

• Insulation type

• Ambient temperature

• Conductor cross-sectional area

• All of the above