WorksheetsPEC Sample Quiz 1
Total questions: 15
Worksheet time: 5mins
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
PVC conduit is NOT permitted in:
Concealed installations
Wet locations
Hazardous classified locations
Underground
A rigid metal conduit (RMC) is defined as:
A non-metallic raceway
A threadable metallic raceway
A flexible cable
A grounding conductor
The number of conductors in a conduit is limited by:
Voltage rating
Temperature rating
Percent fill of cross-sectional area
Length of conduit
A conductor marked “THHW” means:
Thermoplastic, heat- and water-resistant
Thermoset, heavy-duty, waterproof
High-voltage wire only
Thin heat welding wire
The minimum requirement before starting any electrical work is:
Contract approval
Electrical Permit from OBO
Materials procurement
Fire safety inspection
