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# MCQ in Philippine Electrical Code (PEC) Part 13 | REE Board Exam

This is the Multiple Choice Questions Part 13 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 13 of the Series

Choose the letter of the best answer in each questions.

601.ย  Service equipment rated over 600 V located on mezzanine floorsย  shallย  beย  requiredย  toย  beย  accessibleย  byย  permanent ____.

A.ย  stairways

C.ย  both A and B

D.ย  neither A and B

Solution:

602.ย  The load forย  household electric clothes dryer in dwelling is the larger of the nameplate or ____ VA.

A.ย  4,000

B.ย  5,000

C.ย  6,000

D.ย  8,000

Solution:

603.ย  Eachย  lightingย  andย  applianceย  branchย  circuitย  panelย  board shallย  beย  protectedย  individuallyย  onย  theย  supplyย  sideย  byย  not mareย  thanย  twoย  mainย  CBsย  orย  twoย  setsย  ofย  fusesย  havingย  a combined rating not ____ than that of the panel board.

A.ย  less

B.ย  greater

C.ย  both A and B

D.ย  neither A and B

Solution:

604.ย  Theย  longย  timeย  ratingย  forย  x-rayย  equipmentย  isย  basedย  onย  an operating time of ____ minutes or longer.

A.ย  five

B.ย  eight

C.ย  six

D.ย  ten

Solution:

605.ย  Forย  circuitsย  supplyingย  loadsย  consistingย  ofย  motorย  operated utilization equipment that is fastened in place and that has aย  motorย  largerย  thanย  0.125ย  hpย  inย  combinationย  withย  other loads, the total computed load shall be on ____ percentย ย  of the largest motor load plus the sum of the other loads.

A.ย  100

B.ย  125

C.ย  150

D.ย  130

Solution:

606.ย  Exposedย  ACย  cableย  shallย  closelyย  followย  theย  ____ย  ofย  the building.

A.ย  finish

B.ย  studs

C.ย  both A and B

D.ย  neither A and B

Solution:

607.ย  A three- phase general purpose squirrel cage motor draws aย  full load currentย  ofย  40ย  A. Whatย  idย  theย  maximumย  sizeย  of timeย  delayย  fusesย  thatย  mayย  beย  usedย  forย  shortย  circuit protection?

A.ย  120 A

B.ย  80 A

C.ย  40 A

D.ย  100 A

Solution:

608.ย  A 5.5 mmยฒ TW copper has a conductor ampacity of ____.

A.ย  30 A

B.ย  40 A

C.ย  20 A

D.ย  50 A

Solution:

609.ย  Theย  branchย  circuitย  loadย  forย  continuousย  dutyย  receptacles shall be calculated at ____ VA per receptacle.

A.ย  150

B.ย  175

C.ย  180

D.ย  200

Solution:

610.ย  Groundย  rodย  clampsย  shallย  beย  securedย  withย  atย  leastย  ____ bolt(s) or cap screws

A.ย  one

B.ย  two

C.ย  three

D.ย  four

Solution:

611.ย  Over current protection devices in emergency system shall _____.

A.ย  be coordinated

B.ย  clear in steps

C.ย  not trip the main device

D.ย  all of these

Solution:

612.ย  Theย  undergroundย  serviceย  conductorsย  betweenย  theย  street main, including any risers at the pole or other structure or fromย  transformerย  andย  theย  firstย  pointย  ofย  connectionย  toย  the service entrance of the conductors in a terminal box. The pointย  ofย  connectionย  isย  consideredย  toย  beย  theย  pointย  of entrance of the service conductors into the building.

A.ย  Service entry

B.ย  Service raceway

C.ย  Service lateral

D.ย  Service drop

Solution:

613.ย  Downย  conductorsย  onย  aย  heavyย  dutyย  smokeย  orย  ventย  stacks shall be protected from physical damage of NOT less than ____ above finish grade.

A.ย  2,000 mm

B.ย  2,300 mm

C.ย  2,500 mm

D.ย  2,400 mm

Solution:

614.ย  The PEC permits ____ 90ยฐ bends in a single conduit run

A.ย  one

B.ย  two

C.ย  three

D.ย  four

Solution:

615.ย  Aย  warningย  signย  shallย  beย  postedย  whereย  ____ย  voltageย  is available in service equipment.

A.ย  high

B.ย  low

C.ย  both A and B

D.ย  neither A and B

Solution:

616.ย  Circuitsย  withย  aย  nominalย  voltageย  ofย  600ย  Vย  orย  lessย  inย  rigid metal or non-metallic conduit and placed under a minimum ofย  100ย  mmย  thickย  concreteย  exteriorย  stabย  withย  noย  vehicular traffic shall have cover distance of ____.

A.ย  200 mm

B.ย  300 mm

C.ย  400 mm

D.ย  100 mm

Solution:

617.ย  Conductorsย  supplyingย  aย  groupย  ofย  motor-generatorย  arc weldersย  areย  sizedย  atย  ____ofย  theย  thirdย  largestย  welderย  plus the percentage of the other welders.

A.ย  65%

B.ย  85%

C.ย  70%

D.ย  75%

Solution:

618.ย  Whichย  ofย  theย  followingย  statementsย  onย  windingย  in commercial garages and shops is NOT correct?

A.ย  Theย  groundย  conductorย  shallย  beย  connectedย  toย  the ground terminal of the utilization equipment

B.ย  Receptacles,ย  attachmentย  plugsย  andย  similarย  devices shall be of the polarized type

C.ย  Lampsย  andย  lampย  holdersย  forย  fixedย  lightingย  thatย  are locatedย  aboveย  vehiclesย  shallย  beย  installedย  notย  lower than 2,500 mm

D.ย  Battery chargers and batteries being charged shall not be located in location classified as hazardous

Solution:

619.ย  Conductors may travel horizontally throughย  ____ย  sections of switchboards if isolated from busbars by a barrier.

A.ย  horizontal

B.ย  vertical

C.ย  both A and B

D.ย  neither A or B

Solution:

620.ย  Thereย  shallย  beย  noย  moreย  thanย  ______ย  disconnectsย  per service grouped in any location.

A.ย  four

B.ย  five

C.ย  six

D.ย  three

Solution:

621.ย  Whenย  aย  circuitย  breakerย  handlesย  areย  operatedย  vertically ratherย  thanย  horizontally,ย  theย  โupโย  positionย  ofย  theย  handle shall be the ___ position.

A.ย  off

B.ย  on

C.ย  neutral

D.ย  any of these

Solution:

622.ย  RME Board October 1996

ACย  equipmentย  onย  boardย  watercraftย  shallย  operate satisfactorily at the following voltage limitations. Which one is correct?

A.ย  Minus 5% to plus 10%

B.ย  Minus 6% to plus 10%

C.ย  Minus 10% to plus 6%

D.ย  Minus 10% to plus 10%

Solution:

623.ย  Emergencyย  powerย  panelย  conductorsย  supplyingย  aย  building are tapped on ____.

A.ย  The line side of the service

B.ย  Any subfed panel

C.ย  Any circuit breaker main

D.ย  Any feeder circuit

Solution:

624.ย  Whereย  buildingsย  exceedย  threeย  storiesย  orย  15ย  metersย  in height,ย  overheadย  linesย  shallย  beย  arranged,ย  where practicable, so that a clear space of at least ____ wide will be left to facilitate title raising of ladders when necessary for fire fighting.

A.ย  2,000 mm

B.ย  1,800 mm

C.ย  1,900 mm

D.ย  1,500 mm

Solution:

625.ย  Forย  theย  purposeย  ofย  lightingย  protection,ย  aย  smokeย  orย  vent stack is classified as heavy duty if the cross sectional area ofย  theย  flueย  isย  greaterย  thanย  ____ย  squareย  meterย  andย  the height is greater than 23 meters.

A.ย  0.50

B.ย  0.32

C.ย  0.42

D.ย  0.27

Solution:

626.ย  Voltage drop shall be considered to service laterals run at _____ distance.

A.ย  short

B.ย  long

C.ย  both A and B

D.ย  neither A and B

Solution:

627.ย  Conductors used in lightning protection system shall have no bend forming an included angle of less than ______.

A.ย  60ยฐ

B.ย  75ยฐ

C.ย  50ยฐ

D.ย  90ยฐ

Solution:

628.ย  Controlย  conductorsย  usedย  forย  loadย  managementย  canย  be routedย  withย  theย  serviceย  entranceย  conductorsย  inย  theย  same _______.

A.ย  raceway

B.ย  cable

C.ย  either A or B

D.ย  neither A or B

Solution:

629.ย  A lighting fixture shall be wired with a flexible lighting cord withย  aย  crossย  sectionalย  areaย  ofย  NOTย  lessย  thanย  aย  certain minimum area. Which is this?

A.ย  0.75 mm2

C.ย  0.50 mm2

B.ย  2.00 mm2

D.ย  1.25 mm2

Solution:

630.ย  Service conductors shall not be run in such a manner as to block _____ to buildings.

A.ย  openings

B.ย  driveways

C.ย  both A and B

D.ย  neither A and B

Solution:

631.ย  Continuous duty loads shall be figured at ____ percent for branch circuits.

A.ย  100

B.ย  115

C.ย  120

D.ย  125

Solution:

632.ย  Enclosuresย  forย  over-currentย  devicesย  inย  dampย  orย  wet locationsย  shall be identified for use in such locations and shallย  beย  mountedย  soย  thereย  isย  atย  leastย  _____ย  airย  space between the enclosure and the wall.

A.ย  10 mm

B.ย  12 mm

C.ย  15 mm

D.ย  20 mm

Solution:

633.ย  Whatย  typeย  letterย  forย  conductorsย  hasย  aย  tradeย  name โmoisture and heat resistant rubberโ?

A.ย  RH

B.ย  RHW

C.ย  XHHW

D.ย  THW

Solution:

634.ย  Grounding conductor installed over lightning cables for the purposeย  ofย  interconnectingย  theย  systemย  groundย  electrodes and providing lightning protection for the cables.

A.ย  Anchor

B.ย  Counterpoise

C.ย  Elevation rod

D.ย  Air terminal

Solution:

635.ย  Theย  surgeย  arresterย  forย  servicesย  lessย  thanย  1,000ย  volts connectedย  byย  copperย  conductorย  toย  groundingย  electrode conductor or the equivalent grounding terminal shall NOT be smaller than _____.

A.ย  8.0 mm2

C.ย  3.5 mm2

B.ย  5.5 mm2

D.ย  2.0 mm2

Solution:

636.ย  Theย  OCPDย  forย  arcย  weldersย  withย  transformersย  shallย  NOT exceed _____ percent of the primary full load current.

A.ย  200

B.ย  300

C.ย  250

D.ย  400

Solution:

637.ย  Onย  circuitsย  ofย  lessย  thanย  1000V,ย  theย  ratingย  ofย  theย  surge arresterย  shallย  beย  ___ย  theย  maximumย  continuousย  phaseย  to groundย  powerย  frequencyย  voltageย  availableย  atย  theย  pointย  of application.

A.ย  equal to or greater than

B.ย  not less than

C.ย  not less than 125%

D.ย  none of these

Solution:

638.ย  Theย  longย  timeย  ratingย  usedย  toย  selectย  OCPDsย  toย  protect circuits to x-ray equipment shall be _____.

A.ย  125%

B.ย  150%

C.ย  175%

D.ย  100%

Solution:

639.ย  A 3.5 mm2 TW copper conductor has an ampacity equal to ____.

A.ย  20 A

B.ย  15 A

C.ย  30 A

D.ย  12 A

Solution:

640.ย  Which of the following statements on lighting fixtures NOT correct?

A.ย  Outdoorย  lightingย  fixturesย  andย  associatedย  equipment shall be permitted to be supported by trees

B.ย  Metalย  fixturesย  andย  enclosuresย  ratedย  atย  250ย  Vย  and installed up in the ceiling shall be grounded.

C.ย  Stranded conductors shall be used in wiring a fixture supporting chain and other movable flexible parts.

D.ย  Fixtures and lighting equipment operating at over 250 V shall be grounded

Solution:

641.ย  Conductorsย  fromย  theย  serviceย  pointย  toย  theย  service disconnecting means are considered service____.

A.ย  subpanels

B.ย  conductors

C.ย  both A and B

D.ย  neither A and B

Solution:

642.ย  Connectionย  orย  fittingsย  shallย  notย  connectย  grounding electrode conductors to equipment by means of _______.

A.ย  solder

B.ย  lugs

C.ย  pressure connectors

D.ย  clamps

Solution:

643.ย  Eachย  lengthย  ofย  non-metallicย  conduitย  shallย  beย  clearlyย  and durably marked at least every ______ as required.

A.ย  3,000 mm

B.ย  2,000 mm

C.ย  4,000 mm

D.ย  5,000 mm

Solution:

644.ย  Doors leading into a transformer vault shall be kept locked and access allowed only to ______.

A.ย  the owner

B.ย  qualified person

C.ย  general public

D.ย  any person working in the building

Solution:

645.ย  Resistorsย  andย  reactorsย  shallย  notย  beย  installedย  inย  close proximity to combustible materials such that it constitutes a fire hazard. What minimum clearance is required by the Code?

A.ย  250 mm

B.ย  300 mm

C.ย  400 mm

D.ย  100 mm

Solution:

646.ย  Theย  groundย  conductorย  shall beย  equalย  toย  theย  largestย  ____ conductor.

A.ย  bonding

B.ย  phase

C.ย  ungrounded service

D.ย  equipment

Solution:

647.ย  Completelyย  enclosed,ย  ventilatedย  transformersย  equipped withย  aย  80๏ฐCย  riseย  insulationย  mayย  beย  installedย  inย  aย  room ____.

A.ย  with concrete walls

B.ย  designed as a vault

C.ย  of fire resistant construction

D.ย  built with tile blocks

Solution:

648.ย  RME Board April 1996

Inย  aย  switchboardย  thereย  shallย  beย  anย  airย  spaceย  ofย  atย  least _____ between the energized metal part and the door or the cabinet.

A.ย  30 mm

B.ย  20 mm

C.ย  15 mm

D.ย  25 mm

Solution:

649.ย  Electricalย  metallicย  tubingย  shallย  beย  securelyย  fastenedย  in place withinย  ____ of each outlet box, junction box, cabinet or fitting.

A.ย  300 mm

B.ย  600 mm

C.ย  900 mm

D.ย  800 mm

Solution:

650.ย  Lead-inย  antennaย  conductorsย  forย  televisionย  orย  radio equipment shall be securely _____ to antennas.

A.ย  attached

B.ย  fastened

C.ย  both A and B

D.ย  neither A or B

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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