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

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⇐ MCQ in Philippine Electrical Code (PEC) Part 3 | REE Board Exam

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

A.  voltage rating

B.  manufacturer’s name

C.  current rating

D.  all of these

152.  The  system  neutral  conductor  shall  not  be  connected  to ground EXCEPT

A.  when the generator frame is not grounded

B.  through the grounding impedance

C.  through a grounding transformer

D.  when a ground fault is very common

153.  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.  short circuit between lines

B.  reversal of phase sequence

C.  high voltage

D.  sustained overload

154.  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.  4

B.  5

C.  6

D.  3

155.  Non-metallic  sheathed  cable  shall  be  supported  within from every cabinet, box or fitting

A.  150 mm

B.  200 mm

C.  250 mm

D.  300 mm

156.  RME BOARD APRIL 1995

What  is  the  nominal  supply  voltage  specified  by  the Philippine Electrical Code for residential homes?

A.  225 volts AC

B.  230 volts AC

C.  240 volts AC

D.  220 volts AC

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

A.  hoistways

B.  multi-conductor underground feeder

C.   metal clad cable

D.  all of these

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

A.  100 days

B.  120 days

C.  90 days

D.  60 days

159.  Which  of  the  following  conductors  is  NOT  applicable  on wet locations?

A.  Type THHN

B.  Type THW

C.  Type RHW

D.  Type THWN

160.  A surge of unidirectional polarity.

A.  Skin effect

B.  Corona

C.  Flashover

D.  Impulse

161.  For  each  small  appliance  branch  circuit,  the  feeder  load shall be ______ per 20 A circuit.

A.  1,000 VA

B.  1,200 VA

C.  1,500 VA

D.  1,800 VA

162.  RME BOARD OCTOBER 1995

The  electrical  plans  for  residential  house  include  the following items EXCEPT one. Which one is this?

A.  Substation plan

B.  Location plan

C.  Floor plan showing location of service

D.  Layout  of  wiring  plan  for  general  lighting  and receptacle outlets

163.  Tools and portable hand lamps likely to be used in wet and conductive locations shall not be required to be grounded where  supplied  through  an  isolating  transformer  with  an ungrounded secondary of not more than

A.  100 V

B.  150 V

C.  50 V

D.  none of these

164.  The  minimum  size  of  branch  circuit  capacity  to  supply laundry receptacle outlets shall be _____.

A.  20 A

B.  15 A

C.  25 A

D.  30 A

165.  Conductors  in  open  wiring  on  insulators  shall  be  rigidly supported within _____ from a tap or splice.

A.  200 mm

B.  100 mm

C.  250 mm

D.  150 mm

166.  Main and equipment bonding jumper shall of _____.

A.  copper

B.  aluminum

C.  both A and B

D.  neither A or B

167.  The  minimum  insulation  level  for  neutral  conductors  of solidly grounded system shall be ______.

A.  500 V

B.  300 V

C.  600 V

D.  750 V

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

A.  15.9 mm

B.  12.7 mm

C.  10.5 mm

D.  9.5 mm

169.  RME BOARD APRIL 1994

Connection  between  conductive  or  inductive  metal object in  an  element  of  a  lightning  protection  system  to accomplish electrical continuity

A.  Connectors

B.  Interlink

C.  Counterpoise

D.  Bonding

170.  The grounding electrode conductor shall be ______.

A.  copper

B.  copper-clad-aluminum

C.  aluminum

D.  all of these

171.  Mats of insulating rubber or other suitable floor insulation shall  be  provided  for  the  operator  where  the  voltage  to ground exceeds

A.  150 V

B.  100 V

C.  250 V

D.  none of these

172.  How  many  20  A  branch  circuit  shall  be  provided  for  all receptacle outlets for the small appliance load?

A.  One or more

B.  At least two

C.  Only one

D.  None of these

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

A.  100 A

B.  90 A

C.  60 A

D.  30 A

174.  RME BOARD OCTOBER 1996

Flexible  cords  used  in  locations  where  there  is  a  lot  of flying  flint  or  fibers  shall  comply  with  following  EXCEPT one. Which one is this?

A.  It  shall  be  approved  for  use  in  locations  which  are vapor-filled

B.  It  shall  contain  in  addition  to  the  conductors,  a grounding conductor

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

D.  It  shall  be  provided  with  suitable  seal  to  prevent  the entrance of dust

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

A.  Switchboard

B.  Outlet

C.  Panel board

D.  Load center

176.  The  workspace  about  electrical  equipment  shall  be adequate to permit at least ____ degree opening of doors or hinged panels.

A.  90

B.  45

C.  60

D.  75

177.  RME BOARD OCTOBER 1994

The  multiplying  factor  for  determining  the  size  of  branch circuit protection for non-time delay fuse is

A.  300%

B.  175%

C.  250%

D.  150%

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

A.  24

B.  20

C.  30

D.  28

179.  In  dwelling  units,  the  computed  lighting  and  small appliance  load  above  120,000  volt-amperes  shall  be computed at what demand?

A.  35%

B.  25%

C.  45%

D.  20%

180.  Which  of  the  following  statements  is  NOT  one  of  the primary objectives of the Philippine Electrical Code?

A.  To establish electrical work standards

B.  To establish basic materials qualities

C.  To ensure safety in using electricity

D.  None of these

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

A.  Philippine Registration Commission

B.  Professional Regulation Commission

C.  Philippine Regulation Commission

D.  Professional Registration Commission

182.  Are sheet metal troughs with hinged or removable covers for  housing  and  protecting  electric  wires  and  cables  and which  conductors  are  laid  in  place  after  this  object  has been installed as a complete system.

A.  Wireways

B.  Busways

C.  Cable trays

D.  Non-metallic extensions

183.  Portable  appliances  equipped  with  proper  cord  and  plug caps and NOT more than _____ maybe installed without an electrical permit.

A.  1,200 VA

B.  1,500 VA

C.  1,000 VA

D.  1,800 VA

184.  Which  of  the  following  is  not  a  standard  content  of  an electrical plan?

A.  Location plan

B.  Legend and general notes

C.  Schedule of maintenance

D.  Specifications

185.  RME BOARD OCTOBER 1996

When  installing  cables  or  raceway  type  wiring  method parallel to the framing members such as joists, rafters, or studs,  the  cable  or  raceway  shall  be  installed  and supported so that the nearest outside surface of the  cable or  raceway  is  NOT  less  than  a  certain  distance  from  the nearest  edge  of  the  framing  member.  What  is  this distance?

A.  20 mm

B.  30 mm

C.  10 mm

D.  50 mm

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

A.  60 A

B.  125 A

C.  45 A

D.  55 A

187.  Cabinet  and  cutout  boxes  shall  have  an  air  space  of  at least ______ between  any  energized  metal  parts  of enclosed fuses and the door.

A.  20 mm

B.  13 mm

C.  25 mm

D.  15 mm

188.  Auxiliary  gutter  shall  be  supported  throughout  it  entire length at intervals _____.

A.  1,500 mm

B.  1,800 mm

C.  1,200 mm

D.  1,600 mm

189.  A lighting and appliance branch circuit panel board is one having  more  than  ____  percent  of  its  over-current  device rated 30-A or less.

A.  10

B.  12

C.   15

D.  16

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

A.  600 V

B.  500 V

C.  230 V

D.  300 V

191.  Conductors  in  concealed  knob  and  tube  wiring  shall maintain a clearance of NOT less than _____ between conductors.

A.  64 mm

B.  50 mm

C.  76 mm

D.  100 mm

192.  RME BOARD OCTOBER 1994

The  minimum  size  of  wire  used  in  electrical  wiring  is  the former number 14 AWG. Under the metric system shown in the PEC, the diameter is

A.  2.0 mm

B.  3.2 mm

C.  1.6 mm

D.  2.6 mm

193.  Non-metallic sheathed  cable  shall be secured  in place  at intervals NOT exceeding _____.

A.  1,300 mm

B.  1,200 mm

C.  1,500 mm

D.  1,800 mm

194.  RME BOARD APRIL 1994

Motor A has a full load current of 8 A and motor B, 10 A. What  is  the  ampacity  of  the  feeder  conductor  supplying these two motors?

A.  9 A

B.  20.5 A

C.  18 A

D.  24.2 A

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

A.  3

B.  4

C.  5

D.  6

196.  Flexible  metallic  tubing  shall  NOT  be  used  in  lengths longer than

A.  2,000 mm

B.  1,800 mm

C.  1,900 mm

D.  none of these

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

A.  10 A

B.  8 A

C.  12 A

D.  9 A

198.  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 not  more  than  a  certain  percentage  of  the  rated  primary current  of  the  transformer.  What  is  this  maximum percentage?

A.  110%

B.  125%

C.  100%

D.  140%

199.  Outdoor  lighting  fixtures  and  associated  equipment  ____ permitted to be supported by trees.

A.  shall be

B.  shall not be

C.  either A or B

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

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

A.  6 A

B.  10 A

C.  4 A

D.  12 A

⇒ MCQ in Philippine Electrical Code (PEC) Part 5 | REE Board Exam

Questions and Answers in Philippine Electrical Code

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