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# MCQ in Philippine Electrical Code (PEC) Part 4 | REE Board Exam

This is the Multiple Choice Questions Part 4 of the Series in Philippine Electrical Code (PEC) as one of the Electrical Engineering topic. In Preparation for the REE Board Exam make sure to expose yourself and familiarize in each and every questions compiled here taken from various sources including but not limited to past Board Exam Questions in Electrical Engineering field, Electrical Engineering Books, Journals and other Electrical Engineering References.

#### Continue Practice Exam Test Questions Part 4 of the Series

Choose the letter of the best answer in each questions.

151.ย  Bus ways shall be marked with which of the following?

A.ย  voltage rating

B.ย  manufacturerโs name

C.ย  current rating

D.ย  all of these

Solution:

152.ย  Theย  systemย  neutralย  conductorย  shallย  notย  beย  connectedย  to ground EXCEPT

A.ย  when the generator frame is not grounded

B.ย  through the grounding impedance

C.ย  through a grounding transformer

D.ย  when a ground fault is very common

Solution:

153.ย  RME BOARD APRIL 1996

When thermal overload relay are used for the protection of a three-phase induction motor, their primary purpose is to protect the motor in case of

A.ย  short circuit between lines

B.ย  reversal of phase sequence

C.ย  high voltage

Solution:

154.ย  In type AC cable, all bends shall be made so that the cable will not be damage and the radius of the curve of the inner edge of any bend shall NOT be less than ______ times the diameter.

A.ย  4

B.ย  5

C.ย  6

D.ย  3

Solution:

155.ย  Non-metallicย  sheathedย  cableย  shallย  beย  supportedย  within from every cabinet, box or fitting

A.ย  150 mm

B.ย  200 mm

C.ย  250 mm

D.ย  300 mm

Solution:

156.ย  RME BOARD APRIL 1995

Whatย  isย  theย  nominalย  supplyย  voltageย  specifiedย  byย  the Philippine Electrical Code for residential homes?

A.ย  225 volts AC

B.ย  230 volts AC

C.ย  240 volts AC

D.ย  220 volts AC

Solution:

157.ย  Messenger supported wiring shall NOT be used in ______.

A.ย  hoistways

B.ย  multi-conductor underground feeder

D.ย  all of these

Solution:

158.ย  Temporary electrical power and lighting installations shall be permitted for a period not to exceed _____ for Christmas decorative lighting, carnivals and similar purposes.

A.ย  100 days

B.ย  120 days

C.ย  90 days

D.ย  60 days

Solution:

159.ย  Whichย  ofย  theย  followingย  conductorsย  isย  NOTย  applicableย  on wet locations?

A.ย  Type THHN

B.ย  Type THW

C.ย  Type RHW

D.ย  Type THWN

Solution:

160.ย  A surge of unidirectional polarity.

A.ย  Skin effect

B.ย  Corona

C.ย  Flashover

D.ย  Impulse

Solution:

161.ย  Forย  eachย  smallย  applianceย  branchย  circuit,ย  theย  feederย  load shall be ______ per 20 A circuit.

A.ย  1,000 VA

B.ย  1,200 VA

C.ย  1,500 VA

D.ย  1,800 VA

Solution:

162.ย  RME BOARD OCTOBER 1995

Theย  electricalย  plansย  forย  residentialย  houseย  includeย  the following items EXCEPT one. Which one is this?

A.ย  Substation plan

B.ย  Location plan

C.ย  Floor plan showing location of service

D.ย  Layoutย  ofย  wiringย  planย  forย  generalย  lightingย  and receptacle outlets

Solution:

163.ย  Tools and portable hand lamps likely to be used in wet and conductive locations shall not be required to be grounded whereย  suppliedย  throughย  anย  isolatingย  transformerย  withย  an ungrounded secondary of not more than

A.ย  100 V

B.ย  150 V

C.ย  50 V

D.ย  none of these

Solution:

164.ย  Theย  minimumย  sizeย  ofย  branchย  circuitย  capacityย  toย  supply laundry receptacle outlets shall be _____.

A.ย  20 A

B.ย  15 A

C.ย  25 A

D.ย  30 A

Solution:

165.ย  Conductorsย  inย  openย  wiringย  onย  insulatorsย  shallย  beย  rigidly supported within _____ from a tap or splice.

A.ย  200 mm

B.ย  100 mm

C.ย  250 mm

D.ย  150 mm

Solution:

166.ย  Main and equipment bonding jumper shall of _____.

A.ย  copper

B.ย  aluminum

C.ย  both A and B

D.ย  neither A or B

Solution:

167.ย  Theย  minimumย  insulationย  levelย  forย  neutralย  conductorsย  of solidly grounded system shall be ______.

A.ย  500 V

B.ย  300 V

C.ย  600 V

D.ย  750 V

Solution:

168.ย  For class II lighting materials, the minimum diameter of a solid copper air terminal shall be _____.

A.ย  15.9 mm

B.ย  12.7 mm

C.ย  10.5 mm

D.ย  9.5 mm

Solution:

169.ย  RME BOARD APRIL 1994

Connectionย  betweenย  conductiveย  orย  inductiveย  metal object inย  anย  elementย  ofย  aย  lightningย  protectionย  systemย  to accomplish electrical continuity

A.ย  Connectors

C.ย  Counterpoise

D.ย  Bonding

Solution:

170.ย  The grounding electrode conductor shall be ______.

A.ย  copper

C.ย  aluminum

D.ย  all of these

Solution:

171.ย  Mats of insulating rubber or other suitable floor insulation shallย  beย  providedย  forย  theย  operatorย  whereย  theย  voltageย  to ground exceeds

A.ย  150 V

B.ย  100 V

C.ย  250 V

D.ย  none of these

Solution:

172.ย  Howย  manyย  20ย  Aย  branchย  circuitย  shallย  beย  providedย  forย  all receptacle outlets for the small appliance load?

A.ย  One or more

B.ย  At least two

C.ย  Only one

D.ย  None of these

Solution:

173.ย  For a one family dwelling unit having anย  initial load of 10 kVA or more,ย  the minimum service entrance capacity shall be ______.

A.ย  100 A

B.ย  90 A

C.ย  60 A

D.ย  30 A

Solution:

174.ย  RME BOARD OCTOBER 1996

Flexibleย  cordsย  usedย  inย  locationsย  whereย  thereย  isย  aย  lotย  of flyingย  flintย  orย  fibersย  shallย  complyย  withย  followingย  EXCEPT one. Which one is this?

A.ย  Itย  shallย  beย  approvedย  forย  useย  inย  locationsย  whichย  are vapor-filled

B.ย  Itย  shallย  containย  inย  additionย  toย  theย  conductors,ย  a grounding conductor

C.ย  It shall be of type approved for extra hard usage

D.ย  Itย  shallย  beย  providedย  withย  suitableย  sealย  toย  preventย  the entrance of dust

Solution:

175.ย  A point at which the load of a given area is assumed to be concentrated.

A.ย  Switchboard

B.ย  Outlet

C.ย  Panel board

Solution:

176.ย  Theย  workspaceย  aboutย  electricalย  equipmentย  shallย  be adequate to permit at least ____ degree opening of doors or hinged panels.

A.ย  90

B.ย  45

C.ย  60

D.ย  75

Solution:

177.ย  RME BOARD OCTOBER 1994

Theย  multiplyingย  factorย  forย  determiningย  theย  sizeย  ofย  branch circuit protection for non-time delay fuse is

A.ย  300%

B.ย  175%

C.ย  250%

D.ย  150%

Solution:

178.ย  For banks, the general lighting load shall be computed at _____ per square meters of the floor area.

A.ย  24

B.ย  20

C.ย  30

D.ย  28

Solution:

179.ย  Inย  dwellingย  units,ย  theย  computedย  lightingย  andย  small applianceย  loadย  aboveย  120,000ย  volt-amperesย  shallย  be computed at what demand?

A.ย  35%

B.ย  25%

C.ย  45%

D.ย  20%

Solution:

180.ย  Whichย  ofย  theย  followingย  statementsย  isย  NOTย  oneย  ofย  the primary objectives of the Philippine Electrical Code?

A.ย  To establish electrical work standards

B.ย  To establish basic materials qualities

C.ย  To ensure safety in using electricity

D.ย  None of these

Solution:

181.ย  The Code has been approved and adopted by the Board, PRC. What does the acronym PRC stands for?

A.ย  Philippine Registration Commission

B.ย  Professional Regulation Commission

C.ย  Philippine Regulation Commission

D.ย  Professional Registration Commission

Solution:

182.ย  Are sheet metal troughs with hinged or removable covers forย  housingย  andย  protectingย  electricย  wiresย  andย  cablesย  and whichย  conductorsย  areย  laidย  inย  placeย  afterย  thisย  objectย  has been installed as a complete system.

A.ย  Wireways

B.ย  Busways

C.ย  Cable trays

D.ย  Non-metallic extensions

Solution:

183.ย  Portableย  appliancesย  equippedย  withย  properย  cordย  andย  plug caps and NOT more than _____ maybe installed without an electrical permit.

A.ย  1,200 VA

B.ย  1,500 VA

C.ย  1,000 VA

D.ย  1,800 VA

Solution:

184.ย  Whichย  ofย  theย  followingย  isย  notย  aย  standardย  contentย  ofย  an electrical plan?

A.ย  Location plan

B.ย  Legend and general notes

C.ย  Schedule of maintenance

D.ย  Specifications

Solution:

185.ย  RME BOARD OCTOBER 1996

Whenย  installingย  cablesย  orย  racewayย  typeย  wiringย  method parallel to the framing members such as joists, rafters, or studs,ย  theย  cableย  orย  racewayย  shallย  beย  installedย  and supported so that the nearest outside surface of theย  cable orย  racewayย  isย  NOTย  lessย  thanย  aย  certainย  distanceย  fromย  the nearestย  edgeย  ofย  theย  framingย  member.ย  Whatย  isย  this distance?

A.ย  20 mm

B.ย  30 mm

C.ย  10 mm

D.ย  50 mm

Solution:

186.ย  Which of the following is NOT a standard ampere rating of a fuse?

A.ย  60 A

B.ย  125 A

C.ย  45 A

D.ย  55 A

Solution:

187.ย  Cabinetย  andย  cutoutย  boxesย  shallย  haveย  anย  airย  spaceย  ofย  at least ______ betweenย  anyย  energizedย  metalย  partsย  of enclosed fuses and the door.

A.ย  20 mm

B.ย  13 mm

C.ย  25 mm

D.ย  15 mm

Solution:

188.ย  Auxiliaryย  gutterย  shallย  beย  supportedย  throughoutย  itย  entire length at intervals _____.

A.ย  1,500 mm

B.ย  1,800 mm

C.ย  1,200 mm

D.ย  1,600 mm

Solution:

189.ย  A lighting and appliance branch circuit panel board is one havingย  moreย  thanย  ____ย  percentย  ofย  itsย  over-currentย  device rated 30-A or less.

A.ย  10

B.ย  12

C.ย ย  15

D.ย  16

Solution:

190.ย  Open wiring on insulators shall be permitted on systems of up to

A.ย  600 V

B.ย  500 V

C.ย  230 V

D.ย  300 V

Solution:

191.ย  Conductorsย  inย  concealedย  knobย  andย  tubeย  wiringย  shall maintain a clearance of NOT less than _____ between conductors.

A.ย  64 mm

B.ย  50 mm

C.ย  76 mm

D.ย  100 mm

Solution:

192.ย  RME BOARD OCTOBER 1994

Theย  minimumย  sizeย  ofย  wireย  usedย  inย  electricalย  wiringย  isย  the former number 14 AWG. Under the metric system shown in the PEC, the diameter is

A.ย  2.0 mm

B.ย  3.2 mm

C.ย  1.6 mm

D.ย  2.6 mm

Solution:

193.ย  Non-metallic sheathedย  cableย  shall be securedย  in placeย  at intervals NOT exceeding _____.

A.ย  1,300 mm

B.ย  1,200 mm

C.ย  1,500 mm

D.ย  1,800 mm

Solution:

194.ย  RME BOARD APRIL 1994

Motor A has a full load current of 8 A and motor B, 10 A. Whatย  isย  theย  ampacityย  ofย  theย  feederย  conductorย  supplying these two motors?

A.ย  9 A

B.ย  20.5 A

C.ย  18 A

D.ย  24.2 A

Solution:

195.ย  The bending radius of type SNM cable shall NOT be less than _____ times the diameter of the cable.

A.ย  3

B.ย  4

C.ย  5

D.ย  6

Solution:

196.ย  Flexibleย  metallicย  tubingย  shallย  NOTย  beย  usedย  inย  lengths longer than

A.ย  2,000 mm

B.ย  1,800 mm

C.ย  1,900 mm

D.ย  none of these

Solution:

197.ย  Size 1.25 mm2 fixture wire has an ampacity of ______.

A.ย  10 A

B.ย  8 A

C.ย  12 A

D.ย  9 A

Solution:

198.ย  RME BOARD APRIL 1995

Each transformer up to 600 V nominal shall be protected by an individual over-current device on the primary side at notย  moreย  thanย  aย  certainย  percentageย  ofย  theย  ratedย  primary currentย  ofย  theย  transformer.ย  Whatย  isย  thisย  maximum percentage?

A.ย  110%

B.ย  125%

C.ย  100%

D.ย  140%

Solution:

199.ย  Outdoorย  lightingย  fixturesย  andย  associatedย  equipmentย  ____ permitted to be supported by trees.

A.ย  shall be

B.ย  shall not be

C.ย  either A or B

D.ย  none of these (not specified in the PEC)

Solution:

200.ย  Rosettes shall be rated at 660 W, 250 V with a maximum current rating of

A.ย  6 A

B.ย  10 A

C.ย  4 A

D.ย  12 A

Solution:

#### Questions and Answers in Philippine Electrical Code

Following is the list of practice exam test questions in this brand new series:

MCQ in Philippine Electrical Code
PART 1: MCQ from Number 1 โ 50                Answer key: included
PART 2: MCQ from Number 51 โ 100            Answer key: included
PART 3: MCQ from Number 101 โ 150           Answer key: included
PART 4: MCQ from Number 151 โ 200           Answer key: included
PART 5: MCQ from Number 201 โ 250           Answer key: included
PART 6: MCQ from Number 251 โ 300           Answer key: included
PART 7: MCQ from Number 301 โ 350           Answer key: included
PART 8: MCQ from Number 351 โ 400            Answer key: included
PART 9: MCQ from Number 401 โ 450            Answer key: included
PART 10: MCQ from Number 451 โ 500          Answer key: included

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