Republic of the Philippines
PROFESSIONAL REGULATION COMMISION
Manila
BOARD OF ELECTRICAL ENGINEERING
Registered Master Electrician Licensure Examination
PHILIPPINE ELECTRICAL CODE
INSTRUCTION: Select the answer for each of the following questions. Mark only the
answer for each item by shading the box corresponding to the letter of your choice on the
answer sheet provided. STRICTLY NO ERASURES ALLOWED. Use pencil no. 1 only.
MULTIPLE CHOICE
1. Derating factors do not apply to conductors in conduit having a length not exceeding
a. 300 mm b. 400 mm c. 500 mm d. 600 mm
2
2. If the ampacity of the same 3 – 8 mm THW copper conductors inside raceway is 45 amperes
at an ambient temperature of 30 degree centigrade then the ampacity of such conductors at
an ambient temperature of 40 degree centigrade is (the correction factor is 0.88)
a. 36.75 b 33.75 c. 36.9 d. 39.6
3. A 4 kW, 230 volts, three phase wound rotor induction motor has a rated full load efficiency of
85 % and power factor of 75 %. The maximum rating of the inverse time delay circuit breaker
for branch circuit protection is:
a. 47 A b. 30 A c. 40 A d. 42 A
4. According to the table of operating voltage in the code. The minimum conductor size for
copper conductor for 8000 v is
a. 8.0 sq mm b. 2.0 sq mm c. 3.5 sq mm d. 5.5 sq mm
5. According to the table of operating voltage in the code. The thickest insulation for conductor
size copper conductor is.
a. 8.0 sq mm b. 2.0 sq mm c. 3.5 sq mm d. 5.5 sq mm
6. The minimum size of wire used in electrical wiring is the former number 14 AWG. Under the
metric system now shown the new PEC, the diameter is,
a. 1.6 mm b. 2 mm c. 2.6 mm d. 3.2 mm
7. The minimum size of the service entrance conductor using THW copper wire is
2 2 2 2
a. 14 mm b. 8 mm c. 22 mm d. 5.5 mm
8. According to the table of operating voltage in the code. The minimum conductor size for
copper conductor for 15,000 v using AWG system is.
a. 2 b. 12 c. 1 d. 0
9. The unit lighting for bank if the actual no of receptacle is unknown is expressed in VA per
square meter shall be;
a. 8 VA b. 28 VA c. 36 VA d. 40 VA
1
, 10. For the kitchen small appliance load in occupancies, the code requires not less than;
a. two 20 A circuits b. one 15 A circuit
c. two 15 A circuits d. one 20 A circuit
11. To provide for small appliance load in dwelling units, the feeder should be computed at;
a. 1,500 watts b. 3,000 watts c. 2,400 watts d. 3,600 watts
12. The service or feeder capacity necessary to provide for six 5-kW household electric clothes
dryer is;
a. 18 kW b. 24 kW c. 19.5 kW d. 21 kW
13. For service-drop conductors not exceeding 600 volts its minimum clearance over residential
property and driveways, and those commercial areas not subject to truck traffic.
a. 3,100 mm b. 3,700 mm c. 4,600 mm d. 5,500 mm
14. For service drop conductors not exceeding 600 volts its minimum clearance over public
streets, alleys, roads, parking areas subject to truck traffic, driveways on other than
residential property and other land traversed by vehicles such as cultivated, grazing, forest,
and orchard.
a. 3,100 mm b. 3,700 mm c. 4,600 mm d. 5,500 mm
15. Conductors must have a clearance from windows, porches, fire escapes of not less than;
a. 700 mm b. 800 mm c. 900 mm d. 1,000 mm
16. Service conductors passing over roof must have a clearance over the roof which they pass of
not less than
a. 1,000 mm b. 2,500 mm c. 1,500 mm d. 3,000 mm
17. The minimum clearance for service drops over buildings.
a. 1,000 mm b. 2,500 mm c. 1,500 mm d. 3,000 mm
18. The minimum clearance for service drops over side walks.
a. 2,500 mm b. 3,100 mm c. 5,500 mm d. 3,700 mm
19. The minimum clearance of service drops over driveway, alleys, and public roads.
a. 3,100 mm b. 5,500 mm c. 4,600 mm d. 3,700 mm
20. When the voltage between service conductors does not exceed 300 volts and the roof has a
slope of not less than 100 mm in 300 mm, the clearance can be reduced to;
a. 600 mm b. 800 mm c. 900 mm d. 1000 mm
21. What position must a knife switch with fuse be mounted?
a. horizontal b. vertical c. diagonal d. inclined position
22. What is the maximum voltage rating of plug fuses?
a. 110 volts b. 125 volts c. 200 volts d. 220 volts
23. For each 2-wire laundry branch circuit, a feeder load of NOT less than shall be
included.
a. 1,800 VA b. 1,500 VA c. 2,000 VA d.1,200 VA
24. Why are system and circuit grounded?
a. To protect from excessive current
b. To limit the excess voltage to ground, which occur from lightning or exposure to
other higher voltage source.
c. To acquire more power from grounding circuit
2
PROFESSIONAL REGULATION COMMISION
Manila
BOARD OF ELECTRICAL ENGINEERING
Registered Master Electrician Licensure Examination
PHILIPPINE ELECTRICAL CODE
INSTRUCTION: Select the answer for each of the following questions. Mark only the
answer for each item by shading the box corresponding to the letter of your choice on the
answer sheet provided. STRICTLY NO ERASURES ALLOWED. Use pencil no. 1 only.
MULTIPLE CHOICE
1. Derating factors do not apply to conductors in conduit having a length not exceeding
a. 300 mm b. 400 mm c. 500 mm d. 600 mm
2
2. If the ampacity of the same 3 – 8 mm THW copper conductors inside raceway is 45 amperes
at an ambient temperature of 30 degree centigrade then the ampacity of such conductors at
an ambient temperature of 40 degree centigrade is (the correction factor is 0.88)
a. 36.75 b 33.75 c. 36.9 d. 39.6
3. A 4 kW, 230 volts, three phase wound rotor induction motor has a rated full load efficiency of
85 % and power factor of 75 %. The maximum rating of the inverse time delay circuit breaker
for branch circuit protection is:
a. 47 A b. 30 A c. 40 A d. 42 A
4. According to the table of operating voltage in the code. The minimum conductor size for
copper conductor for 8000 v is
a. 8.0 sq mm b. 2.0 sq mm c. 3.5 sq mm d. 5.5 sq mm
5. According to the table of operating voltage in the code. The thickest insulation for conductor
size copper conductor is.
a. 8.0 sq mm b. 2.0 sq mm c. 3.5 sq mm d. 5.5 sq mm
6. The minimum size of wire used in electrical wiring is the former number 14 AWG. Under the
metric system now shown the new PEC, the diameter is,
a. 1.6 mm b. 2 mm c. 2.6 mm d. 3.2 mm
7. The minimum size of the service entrance conductor using THW copper wire is
2 2 2 2
a. 14 mm b. 8 mm c. 22 mm d. 5.5 mm
8. According to the table of operating voltage in the code. The minimum conductor size for
copper conductor for 15,000 v using AWG system is.
a. 2 b. 12 c. 1 d. 0
9. The unit lighting for bank if the actual no of receptacle is unknown is expressed in VA per
square meter shall be;
a. 8 VA b. 28 VA c. 36 VA d. 40 VA
1
, 10. For the kitchen small appliance load in occupancies, the code requires not less than;
a. two 20 A circuits b. one 15 A circuit
c. two 15 A circuits d. one 20 A circuit
11. To provide for small appliance load in dwelling units, the feeder should be computed at;
a. 1,500 watts b. 3,000 watts c. 2,400 watts d. 3,600 watts
12. The service or feeder capacity necessary to provide for six 5-kW household electric clothes
dryer is;
a. 18 kW b. 24 kW c. 19.5 kW d. 21 kW
13. For service-drop conductors not exceeding 600 volts its minimum clearance over residential
property and driveways, and those commercial areas not subject to truck traffic.
a. 3,100 mm b. 3,700 mm c. 4,600 mm d. 5,500 mm
14. For service drop conductors not exceeding 600 volts its minimum clearance over public
streets, alleys, roads, parking areas subject to truck traffic, driveways on other than
residential property and other land traversed by vehicles such as cultivated, grazing, forest,
and orchard.
a. 3,100 mm b. 3,700 mm c. 4,600 mm d. 5,500 mm
15. Conductors must have a clearance from windows, porches, fire escapes of not less than;
a. 700 mm b. 800 mm c. 900 mm d. 1,000 mm
16. Service conductors passing over roof must have a clearance over the roof which they pass of
not less than
a. 1,000 mm b. 2,500 mm c. 1,500 mm d. 3,000 mm
17. The minimum clearance for service drops over buildings.
a. 1,000 mm b. 2,500 mm c. 1,500 mm d. 3,000 mm
18. The minimum clearance for service drops over side walks.
a. 2,500 mm b. 3,100 mm c. 5,500 mm d. 3,700 mm
19. The minimum clearance of service drops over driveway, alleys, and public roads.
a. 3,100 mm b. 5,500 mm c. 4,600 mm d. 3,700 mm
20. When the voltage between service conductors does not exceed 300 volts and the roof has a
slope of not less than 100 mm in 300 mm, the clearance can be reduced to;
a. 600 mm b. 800 mm c. 900 mm d. 1000 mm
21. What position must a knife switch with fuse be mounted?
a. horizontal b. vertical c. diagonal d. inclined position
22. What is the maximum voltage rating of plug fuses?
a. 110 volts b. 125 volts c. 200 volts d. 220 volts
23. For each 2-wire laundry branch circuit, a feeder load of NOT less than shall be
included.
a. 1,800 VA b. 1,500 VA c. 2,000 VA d.1,200 VA
24. Why are system and circuit grounded?
a. To protect from excessive current
b. To limit the excess voltage to ground, which occur from lightning or exposure to
other higher voltage source.
c. To acquire more power from grounding circuit
2
