This is the Multiple Choice Questions Part 10 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 10 of the Series
Choose the letter of the best answer in each questions.
⇐ MCQ in Philippine Electrical Code (PEC) Part 9 | REE Board Exam
451. A frequency meter is connected as a potential device, which is connected across the line because of one of the following reasons. Which one is this?
A. A transformer maybe used for different voltages
B. The reading will be independent of the varying current
C. Only the voltage has frequency
D. It is safer than a series device
Answer: Option B
Solution:
452. Rigid non-metallic conduit approved for direct burial without concrete encasement shall have a minimum burial of _____.
A. 500 mm
B. 400 mm
C. 460 mm
D. 440 mm
Answer: Option C
Solution:
453. All metal parts associated with the hot tub shall be bonded using copper bonding jumper, insulated, covered, or bare, not smaller than _____.
A. 5.5 mm2
B. 8.0 mm2
C. 14.0 mm2
D. 3.5 mm2
Answer: Option B
Solution:
454. All lighting fixtures, submersible pumps and other submersible equipment used in fountains shall operate at _____ or less between conductors.
A. 230 V
B. 300 V
C. 250 V
D. 500 V
Answer: Option C
Solution:
455. The ground counterpoise when installed in earth shall be placed _____ above all cable in a trench.
A. 75 mm
B. 100 mm
C. 80 mm
D. 50 mm
Answer: Option A
Solution:
456. Type FCC cable shall NOT be used in any of the following EXCEPT
A. outdoors
B. indoors
C. wet locations
D. hazardous locations
Answer: Option B
Solution:
457. The ampacity of the conductors and the rating or setting of over-current devices in a circuit of a solar photovoltaic system shall NOT be less than _____ of the computed current.
A. 100 %
B. 115 %
C. 125%
D. 130%
Answer: Option C
Solution:
458. For signalling circuits NOT exceeding _____ volts, the current required shall not exceed one ampere.
A. 24
B. 12
C. 30
D. 40
Answer: Option A
Solution:
459. The grounding electrode shall be _____.
A. the nearest available effectively grounded structural metal member of the structure
B. the nearest available effectively grounded metal water pipe
C. the nearest concrete encased electrode
D. any of these
Answer: Option D
Solution:
460. Non-metallic boxes not over _____ cu. cm shall be permitted only on non-metallic wiring method.
A. 1,725
B. 1,520
C. 1,700
D. 1,640
Answer: Option D
Solution:
461. The equipment bonding jumper (the connection between the equipment grounding conductor and the grounding impedance) shall be _____.
A. an unspliced conductor run
B. a spliced conductor run
C. either A or B
D. neither A or B
Answer: Option A
Solution:
462. RME Board April 1995
According to its make, conduits maybe classified as
A. rigid metal
B. rigid non-metal
C. flexible metal
D. all of these
Answer: Option D
Solution:
463. In no case shall the grounding conductor be smaller than _____ copper.
A. 5.5 mm²
B. 8.0 mm²
C. 3.5 mm2
D. 2.0 mm2
Answer: Option B
Solution:
464. Hazardous location in which flammable gases or vapors are present in the air in quantities sufficient to produce explosives or ignitable mixtures.
A. Class IV
B. Class III
C. Class II
D. Class I
Answer: Option D
Solution:
465. The system neutral conductor shall NOT be connected to ground, EXCEPT through the neutral ____.
A. grounding impedance
B. grounding electrode
C. grounding transformer
D. derived from other system
Answer: Option A
Solution:
466. In damp or wet locations, cabinets and cutout boxes of the surface type shall be mounted with at least _____ air space between the enclosures and the wall.
A. 6.0 mm
B. 6.4 mm
C. 7.0 mm
D. 7.5 mm
Answer: Option B
Solution:
467. The minimum diameter of a solid air terminal under class I material requirements shall be ____ for copper ____ for aluminum.
A. 9.5 mm, 12.7 mm
B. 12.7 mm, 9.5 mm
C. 8.0 mm, 12.5 mm
D. 12.5 mm, 8.0 mm
Answer: Option A
Solution:
468. Circuits with a nominal voltage of 600V or less in a rigid metal conduit or intermediate metal conduit and placed in a trench below a 50 mm thick concrete or equivalent shall maintain a minimum cover distance of______.
A. 150 mm
B. 250 mm
C. 460 mm
D. 300 mm
Answer: Option A
Solution:
469. RME Board October 1995, REE BOARD October 1993
Vertical clearances of all service drop conductors above roofs shall NOT be less than one of the following values.
A. 2000 mm
B. 2750 mm
C. 3000 mm
D. 2500 mm
Answer: Option D
Solution:
470. The lighting or conductor ground terminal shall extend vertically NOT less than ______ into the earth.
A. 2000 mm
B. 3000 mm
C. 4000 mm
D. 2500 mm
Answer: Option B
Solution:
471. The circuit supplying an auto-transformer type dimmer shall NOT exceed ______ the between conductors.
A. 240 V
B. 250 V
C. 230 V
D. 200 V
Answer: Option C
Solution:
472. A spark occurring between nearby metallic objects or from such objects to the lighting protection system or to ground.
A. Flashover
B. Side flash
C. Spark over
D. Discharge
Answer: Option B
Solution:
473. Covers for boxes shall be permanently marked. The marking shall be on the outside of the box using the block type letters at least ______ in height.
A. 10 mm
B. 12 mm
C. 15 mm
D. 20 mm
Answer: Option B
Solution:
474. RME Board October 1995
When wiring a raceway at least a certain length of free conductors shall be left at each outlet. What is the minimum length?
A. 75 mm
B. 100 mm
C. 150 mm
D. 200 mm
Answer: Option C
Solution:
475. Where a rigid metal conduit is used, there shall NOT be more than the equivalent of ____ quarter bends between pull points.
A. three
B. four
C. five
D. two
Answer: Option B
Solution:
476. There shall be at least _____ down conductor(s) on a heavy-duty smoke or vent stacks.
A. one
B. two
C. three
D. four
Answer: Option B
Solution:
477. If the setting of the over current device in a circuit ahead of the equipment is 60A, the minimum equipment grounding conductor using copper shall be _____.
A. 5.5 mm²
B. 3.5 mm²
C. 2.0 mm2
D. 8.0 mm²
Answer: Option A
Solution:
478. An exposed wiring support system using a messenger wire to support insulated conductors.
A. Metal clad cable wiring
B. Concealed knob and tube wiring
C. Messenger cable wiring
D. Messenger supported wiring
Answer: Option D
Solution:
479. Air terminal shall be within ____ of outermost projection of roof edge.
A. 700 mm
B. 760 mm
C. 800 mm
D. 600 mm
Answer: Option D
Solution:
480. In replacing a busted fuse which of the following is important?
A. same size and type
B. same size but different rating
C. same type but different rating
D. different size and type
Answer: Option A
Solution:
481. RME Board April 1994
Which of the following wires has 75-ohm impedance?
A. Foam-filled twin lead
B. Coaxial
C. Flat twin lead
D. None of these
Answer: Option B
Solution:
482. Rigid metal conduit shall ship in standard lengths of ____.
A. 3000 mm
B. 6000 mm
C. 4000 mm
D. 5000 mm
Answer: Option A
Solution:
483. RME Board April 1995
The term given to an insulated standard wire
A. Durability
B. Cord
C. Length
D. Volume
Answer: Option B
Solution:
484. Exposed non-current carrying metal parts of fixed equipment likely to become energized shall be grounded under the following conditions. Which one is NOT included?
A. where located in wet or damp locations
B. where in electrical contact with wooden floor
C. where in a classified hazardous locations
D. where supplied with a metal raceway or other wiring methods
Answer: Option B
Solution:
485. Electrical equipment except x-ray tube inside anesthetizing room shall be located at least ____ above the floor.
A. 2000 mm
B. 2500 mm
C. 2400 mm
D. 2300 mm
Answer: Option C
Solution:
486. Where the distance requirement in making holes cannot be maintained, the cable or raceway shall be protected from penetration by screws or nails by a steel plate or bushing at least ____ thick and of approved length and a width to cover the area of the wiring.
A. 2.0 mm
B. 1.5 mm
C. 1.8 mm
D. 1.6 mm
Answer: Option D
Solution:
487. The entire area of the aircraft hangar, including any adjacent communication areas not suitably cut-off from the hangar shall be classified as hazardous up to a level of ____ above the floor.
A. 400 mm
B. 460 mm
C. 500 mm
D. 480 mm
Answer: Option B
Solution:
488. RME Board April 1996
In which method of starting a motor is the starting current a minimum?
A. star-delta
B. starter-rotor starter
C. direct on line
D. autotransformer
Answer: Option A
Solution:
489. All switches and circuit breakers used as switches shall be so installed that the center of the grip of the operating handle when in its highest position shall NOT be more than ____ above the floor or working flat form.
A. 2000 mm
B. 1800 mm
C. 1500 mm
D. 2100 mm
Answer: Option A
Solution:
490. For straight pulls, the length of the pull box shall NOT be less than ____ times the outside diameter of the largest non-shielded conductor or cable.
A. 42
B. 48
C. 32
D. 30
Answer: Option C
Solution:
491. Aluminum electrode ____ permitted to be used.
A. shall not be
B. shall be
C. either A or B
D. neither A or B
Answer: Option A
Solution:
492. Electrical non-metallic tubing shall be clearly and durably marked at least every
A. 2000 mm
B. 1000 mm
C. 3000 mm
D. 1500 mm
Answer: Option C
Solution:
493. Which of the following sizes of fuse NOT standard?
A. 80 A
B. 45 A
C. 125 A
D. 75 A
Answer: Option D
Solution:
494. RME Board April 1996
The Philippine Electrical Code, Part 1 does not cover wiring of equipment installed within or to or from one of the following. Which one is this?
A. Trailers
B. Mobile homes
C. Water crafts
D. Airplanes
Answer: Option D
Solution:
495. The smallest electrical trade size of intermediate metal conduit.
A. 15 mm
B. 20 mm
C. 12 mm
D. 25 mm
Answer: Option A
Solution:
496. The use of electrical metallic tubing shall be permitted for_____.
A. exposed works C. both A and B
B. concealed works
C. both A and B
D. neither A or B
Answer: Option C
Solution:
497. The zone of protection of an overhead ground wire is conventionally taken as a
A. cone
B. cylinder
C. triangular prism
D. all of these
Answer: Option C
Solution:
498. The minimum spacing between bare metal parts of opposite polarity where mounted on the same surface shall be ____ for voltages rated not over 250V nominal.
A. 26 mm
B. 32 mm
C. 30 mm
D. 28 mm
Answer: Option B
Solution:
499. The maximum electrical trade size of flexible metallic tubing shall be ____.
A. 15 mm
B. 20 mm
C. 32 mm
D. 100 mm
Answer: Option B
Solution:
500. A protected device for limiting surge voltage by discharging or by passing surge current.
A. Arrester
B. Circuit breaker
C. Lighting rod
D. Thermocouple
Answer: Option A
Solution:
⇒ MCQ in Philippine Electrical Code (PEC) Part 11 | REE Board Exam
Questions and Answers in Philippine Electrical Code
Following is the list of practice exam test questions in this brand new series:
P inoyBIX educates thousands of reviewers and students a day in preparation for their board examinations. Also provides professionals with materials for their lectures and practice exams. Help me go forward with the same spirit.
“Will you subscribe today via YOUTUBE?”
