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MCQ in Philippine Electrical Code (PEC) Part 15 | REE Board Exam

This is the Multiple Choice Questions Part 15 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 15 of the Series

Choose the letter of the best answer in each questions.

701.ย  If two or more buildings are supplied by a grounded by a groundedย  systemย  fromย  oneย  mainย  service,ย  eachย  building shall have separate ____.

A.ย  phases

B.ย  neutrals

C.ย  grounding electrode systems

D.ย  service drops

Solution:

702.ย  Theย  continuousย  loadย  suppliedย  byย  aย  branchย  circuitย  shall NOT exceed the branch circuit rating by more than _____ percent.

A.ย  50

B.ย  60

C.ย  80

D.ย  90

Solution:

703.ย  Aย  cableย  providedย  withย  aย  wrappingย  orย  metalย  usuallyย  steel wiresย  orย  tapes,ย  primarilyย  forย  theย  purposeย  ofย  mechanical protection.

B.ย  metallic sheathed cable

C.ย  armored cable

D.ย  flat conductor cable

Solution:

704.ย  RME BOARD APRIL 1995

In all cases where there are energized parts on the front of theย  switchย  boardsย  orย  motorย  controlย  centers,ย  theย  working space in front of such equipment shall NOT be less than minimum distance. What is this distance?

A.ย  2,000 mm

B.ย  500 mm

C.ย  1,500 mm

D.ย  1,000 mm

Solution:

705.ย  Borderย  lightsย  shallย  beย  installedย  aroundย  stagesย  inย  theaters on circuits rated at _____ less.

A.ย  20 A

B.ย  15 A

C.ย  30 A

D.ย  10 A

Solution:

706.ย  RME Board April 1995

Wiringsย  allowedย  toย  beย  installedย  outsideย  buildingsย  are enumerated below EXCEPT one. Which one is this?

A.ย  type MC cable

B.ย  flat conductor cable

C.ย  rigid metal conduit

D.ย  open wires on insulators

Solution:

707.ย  Conductors supplying a heating unit shall be calculated at ____ percent times the heating load plus the blower motor.

A.ย  110

B.ย  100

C.ย  130

D.ย  125

Solution:

708.ย  Masts separate from the structure to be protected shall be a minimum of _____ from the protected structure.

A.ย  1,800 mm

B.ย  2,000 mm

C.ย  1,900 mm

D.ย  1,500 mm

Solution:

709.ย  Lightingย  track conductors shall be a minimum of _____ or equal and shall be copper.

A.ย  2.0 mm2

C.ย  5.5 mm2

B.ย  1.25 mm2

D.ย  3.5 mm2

Solution:

710.ย  Theย  wallsย  andย  roofsย  ofย  transformerย  vaultsย  shallย  be constructedย  ofย  materialsย  thatย  haveย  adequateย  structural strength for the condition with a minimum fire resistance of _____ hours.

A.ย  1.5

B.ย  2.0

C.ย  2.5

D.ย  3.0

Solution:

711.ย  RME BOARD APRIL 1995

Inย  orderย  toย  protectย  aย  personnelย  andย  preventย  shock,ย  the equipmentย  shouldย  beย  connectedย  goodย  earthย  ground through the

A.ย  conduit pipe

B.ย  hot water pipe

C.ย  cold water pipe

D.ย  rigid conduit pipe

Solution:

712.ย  Whenย  computingย  theย  serviceย  loadย  withย  theย  standard method,ย  moreย  thanย  threeย  fixedย  appliancesย  areย  computed with a demand factor of _____ of the nameplate rating.

A.ย  80%

B.ย  65%

C.ย  70%

D.ย  75%

Solution:

713.ย  Whenย  computingย  theย  serviceย  loadย  withย  theย  standard method, a 2ย  kW electric space heating unit is computed at _____ percent.

A.ย  80

B.ย  100

C.ย  90

D.ย  125

Solution:

714.ย  Where knobs are used, conductors shall be securely tied there to by _____ wires having insulation equivalent to that of the conductors.

A.ย  tie

B.ย  bonding

C.ย  guy

D.ย  splicing

Solution:

715.ย  A photovoltaic power source having one conductor of a 2-wire system over _____ volts shall be solidly grounded.

A.ย  100

B.ย  150

C.ย  50

D.ย  200

Solution:

716.ย  RME BOARD APRIL 1996

Theย  Codeย  requiresย  thatย  allย  energizedย  partย  ofย  electrical equipmentย  operatingย  atย  _____ย  orย  moreย  shallย  beย  guarded against accidental contacts by approved enclosures. What is this voltage?

A.ย  24 volts

B.ย  110 volts

C.ย  230 volts

D.ย  50 volts

Solution:

717.ย  What is the minimum size of the aluminum or copper clad aluminumย  conductors,ย  usedย  asย  serviceย  entrance conductors?

A.ย  8.0 mm2

C.ย  5.5 mm2

B.ย  14.0 mm2

D.ย  3.5 mm2

Solution:

718.ย  RME Board April 2003

When removing insulation from the wire before making the splice,ย  careย  shouldย  beย  takenย  toย  avoidย  nickingย  theย  wire (slightly cutting theย  wire) because of one of the following. Which one of this?

A.ย  the wire might break

B.ย  the ampacity will be reduced

C.ย  the wire tinning (protective coating) will be injured

D.ย  the resistance will increase

Solution:

719.ย  RME Board April 1994, RME Board October 1994

The unit lighting for a dwelling unit expressed in watts per square meter shall be

A.ย  8 watts

B.ย  40 watts

C.ย  24 watts

D.ย  16 watts

Solution:

720.ย  RME Board April 2003

Wiresย  andย  cablesย  usedย  inย  dryย  andย  wetย  locationsย  forย  over 2000ย  voltsย  insulationย  andย  ozoneย  resistantย  withย  moisture and heat resistance rubber and has a maximum operating temperature of 90ยฐC is _____ type.

A.ย  MI

B.ย  RHW

C.ย  THW

D.ย  THHN

Solution:

721.ย  Inย  dwellingย  units,ย  whenย  theย  actualย  numberย  ofย  receptacle outlet is not known, an additional load of ____ volt-ampere per square meter shall be included.

A.ย  10

B.ย  4

C.ย  8

D.ย  6

Solution:

722.ย  RME Board April 2003

Conductors of AC and DC rated up to 600 V nominal shall beย  permittedย  toย  occupyย  theย  sameย  equipmentย  wiring enclosure,ย  cableย  trayย  orย  racewayย  (pipes).ย  Isย  thisย  being allowed under Section 5.1.1.3 (c) (1) Art 5.1?

A.ย  Installation is correct

B.ย  False

C.ย  True

D.ย  Acceptable

Solution:

723.ย  The point of attachment of the service drop conductors to a building or other structure shall NOT be less than ____ above finished grade.

A.ย  3100 mm

B.ย  2800 mm

C.ย  3000 mm

D.ย  3500 mm

Solution:

724.ย  RME Board April 2003

Whichย  typeย  ofย  temperatureย  detectorย  isย  usedย  inย  motor windings?

A.ย  Capacitance

B.ย  Resistance

C.ย  Inductance

D.ย  Reluctance

Solution:

725.ย  If there will be 6 or more 2-ย  wire branch circuits for a one familyย  dwellingย  unit,ย  howย  muchย  isย  theย  minimumย  service entrance capacity required?

A.ย  60 A

B.ย  100 A

C.ย  90 A

D.ย  120 A

Solution:

726.ย  EE Board October 1996

Determineย  theย  minimumย  applianceย  andย  laundryย  load required for a dwelling unit.

A.ย  4000 volt-amperes

B.ย  1500 volt-amperes

C.ย  3000 volt-amperes

D.ย  2000 volt-amperes

Solution:

727.ย  RME Board April 2003

Undergroundย  communicationย  conductorsย  inย  aย  raceway, handholeย  orย  manholeย  containingย  electricย  lightย  andย  power conductors,ย  shallย  beย  inย  aย  sectionย  ____ย  fromย  such conductorsย  byย  meansย  ofย  aย  separatorย  (brick,ย  concreteย  or tile) under Art 10.1.3.2 (a).

A.ย  combined

B.ย  separated

C.ย  included

D.ย  inside

Solution:

728.ย  RME Board October 1995

Which of the raceway methods is NOT allowed to be used in a hazardous location?

A.ย  Rigid metal conduit

B.ย  Liquid-tight flexible metal conduit

C.ย  Rigid non-metallic conduit

D.ย  None of these

Solution:

729.ย  RME Board April 2003

Whereย  racewaysย  areย  exposedย  toย  widelyย  different temperatures they shall be _____.

A.ย  grounded

B.ย  sealed

C.ย  isolated

D.ย  bonded

Solution:

730.ย  RME Board April 2003

Artย  1.ย  10.2ย  ofย  PECย  1ย  requiresย  workingย  spacesย  for equipmentย  operatingย  600ย  V,ย  nominalย  orย  lessย  toย  ground. Thisย  isย  requiredย  forย  liveย  partsย  onย  theย  otherย  side,ย  like concrete,ย  brickย  orย  tileย  wallsย  andย  shallย  beย  consideredย  as grounded. What is this minimum distance for Condition 2?

A.ย  1300 mm

B.ย  1400 mm

C.ย  1200 mm

D.ย  1100 mm

Solution:

731.ย  RME Board April 1997

Whereย  galvanizedย  steelย  conduitย  isย  used,ย  theย  primary purpose of the galvanizing is to

A.ย  retard rusting

B.ย  provide good electrical contact for grounding

C.ย  increase mechanical strength

D.ย  provide a good surface foe painting

Solution:

732.ย  RME Board April 2003

Aย  protectiveย  deviceย  forย  assemblyย  asย  anย  integralย  partย  ofย  a motorย  orย  motorย  compressorย  andย  whichย  whenย  properly applied, protects the motor against dangerous overheating due to overload and failure to start.

A.ย  Fault current

B.ย  Ground fault

C.ย  Thermal heat

D.ย  Thermal protector

Solution:

733.ย  RME Board April 2003

Underfloorย  racewaysย  mayย  beย  occupiedย  upย  toย  _______ percent of the area.

A.ย  55

B.ย  38

C.ย  40

D.ย  30

Solution:

734.ย  RME Board April 1997

This type of loads will NOT require Electrical Permits nor Certificate of Inspection. Which one is this?

A.ย  Fixed water heater

B.ย  Fixed electric range

C.ย  Window type room air-conditioner

D.ย  Potableย  appliancesย  ratedย  notย  moreย  thanย  1200ย  volt-amperes

Solution:

735.ย  RME Board April 1997

Theย  electricalย  drawingย  ofย  singleย  familyย  shallย  showย  the following. EXCEPT one

A.ย  Floor plan

B.ย  Computation of illumination

C.ย  Local Plan

D.ย  One-line diagram

Solution:

736.ย  RME Board April 2003

Whereย  extensiveย  metalย  inย  orย  onย  buildingsย  mayย  become energizerย  andย  isย  subjectย  toย  personalย  contactย  ____ย  will provide additional safety.

A.ย  Bonding

B.ย  Suitable ground detectors

C.ย  Suitable arresters

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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