30 Questions
In the Philippine Electrical Code (PEC), what is an auxiliary conductor used in connection with remote measuring devices or for operating apparatus at a distant point?
Pilot wire
According to the RME Board April 1994 and RME Board October 1995, what is the clearance over the roof that service entrance conductors passing over roots should have?
2500 mm
In the Philippine Electrical Code (PEC), the conductors including splices and taps shall NOT fill the wireway to more than ____ percent of its area at that point.
75
According to the Philippine Electrical Code (PEC), what is the smallest electrical trade size for which liquid-tight metal conduit shall NOT be used?
12 mm
In the context of electrical engineering, what does REE stand for?
Registered Electrical Engineer
What is the purpose of a tie wire in electrical installations?
To secure electrical cables to a support
What is the function of a jumper wire in electrical circuits?
To bypass a component
What is the purpose of a pilot wire in electrical systems?
To transmit control signals
What is the role of a dummy wire in electrical installations?
To act as a placeholder for future connections
In the context of electrical engineering, what does RME stand for?
Registered Master Electrician
What is the minimum working space required for de-energized parts as per the Philippine Electrical Code (PEC)?
3 feet
What is the duty cycle of a motor-generator arc welder according to the Philippine Electrical Code (PEC)?
60%
What is the minimum number of branch circuits required as per the Philippine Electrical Code (PEC) for a specific application?
2
What is the vertical clearance required for communication conductors according to the Philippine Electrical Code (PEC)?
24 inches
What is the ampacity of branch circuit conductors as per the Philippine Electrical Code (PEC)?
20A
What is the rating or setting of over-current protective devices for electric space heating equipment according to the Philippine Electrical Code (PEC)?
125% of the total load
What is the capability of switches used in watercrafts according to the Philippine Electrical Code (PEC)?
300V
What is the minimum number of insulated conductors for cable tray cables as per the Philippine Electrical Code (PEC)?
3
What is the component of a repulsion motor that differs from other types of motors according to the Philippine Electrical Code (PEC)?
Brushes
What is the specific term used in the Philippine Electrical Code (PEC) to describe the phenomenon of a partial discharge in the air surrounding an energized conductor?
Corona
What is the correct vertical clearance requirement for service drop conductors passing over residential property and driveways?
5500 mm
Where can the equipment bonding jumper be installed in relation to a raceway or enclosure?
Inside or outside, but the length outside the raceway shall not exceed 1800 mm
How should electricians regard electrical equipment to avoid personal injury?
Consider all electrical equipment live unless they are certain they are not
Where should electrical floor assemblies not be installed?
Wet or damp locations
What is the minimum required working space in front of switchboards or motor control centers with exposed energized parts?
1000 mm
What is the minimum required air space between the base of a device and the wall of any metal cabinet or cutout box?
2.0 mm
What is the minimum size requirement for service conductors in cable?
5.5 mm2
What is the demand factor for the first 10 kVA or less for non-dwelling receptacle loads?
100%
How far before entering an enclosure must seals on conduit be installed for switches, circuit breakers, etc.?
460 mm
How many times can the ampacity of conductors be derated at most?
Three times
Study Notes
Electrical Code Questions and Answers
- Service drop conductors passing over residential property and driveways must have a vertical clearance of 5500 mm.
- The equipment bonding jumper can be installed inside or outside of a raceway or enclosure, but the length outside the raceway shall not exceed 1800 mm.
- Electricians should consider all electrical equipment live unless they are certain they are not to avoid personal injury.
- Electrical floor assemblies should not be installed in wet or damp locations.
- The working space in front of switchboards or motor control centers with exposed energized parts shall not be less than 1000 mm.
- Cabinet and cutout boxes must have an air space of at least 2.0 mm between the base of the device and the wall of any metal cabinet or cutout box.
- Service conductors in cable shall not be smaller than 5.5 mm2.
- The demand factor for the first 10 kVA or less for non-dwelling receptacle loads is 100%.
- Seals on conduit entering an enclosure for switches, circuit breakers, etc., must be installed within 460 mm before entering the enclosure.
- The ampacity of conductors can be derated at most three times.
- In the schedule of loads for lighting, the frequency rating is not necessary.
- If potential exceeding 600 V is employed, a permanent warning sign must be displayed.
Test your knowledge of electrical code with these questions and answers covering topics such as clearance requirements, equipment bonding, safety precautions, ampacity, and load scheduling. Perfect for electricians and anyone studying electrical code regulations.
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