MCQ in Philippine Electrical Code (PEC) Part 6 | REE Board Exam

This is the Multiple Choice Questions Part 6 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 6 of the Series

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

251. In every kitchen, family room, living room, parlor, bedroom or similar rooms of area of dwelling units, receptacle outlets shall be installed so that no point along the floor line any wall space is more than ____ measured horizontally from an outlet in that space.

A. 2,000 mm

B. 1,800 mm

C. 1,900 mm

D. 2,100 mm

252. The path to ground from circuits equipment and metal enclosures for conductors shall

A. have capacity to conduct safely any fault current

B. have sufficiently low impedance

C. be permanent and continuous

D. all of these

253. RME Board October 1994

Where the voltage between conductors does not exceed 300 V and the roof has a slope of not less than 100 mm in 300 mm, the clearance can be reduced to

A. 500 mm

B. 800 mm

C. 1000 mm

D. 900 mm

254. RME Board April 1995

The uses of non-metallic extensions are NOT allowed in all but one of the following. Which one is this?

A. As an aerial cable

B. Where exposed to corrosive vapors

C. Where subject to corrosive vapors

D. Through floors or partitions

255. RME Board April 1996

What is the minimum horizontal clearance for open conductors from windows, doors, porches, fire escapes or similar location?

A. 1800 mm

B. 1500 mm

C. 1200 mm

D. 1000 mm

256. RME Board Exam April 1995

What is the maximum allowed temperature of type TW conductors?

A. 75°C

B. 50°C

C. 60°C

D. 90°C

257. RME Board October 1995

Concealed knob and tube wiring conductors shall be rigidly supported on knobs not more than a certain minimum distance apart. What is this distance?

A. 2,000 mm

B. 1,500 mm

C. 1,300 mm

D. 2,500 mm

258. RME Board October 1995

In the installation of power resistors, a thermal barrier shall be required if the space between the resistors and any combustible material is less than ______ mm. What is this minimum clearance?

A. 150 mm

B. 300 mm

C. 200 mm

D. 250 mm

259. RME Board October 1995

In estimating the loading of a branch circuit, what loading shall be used for each receptacle?

A. 160 volt-ampere

B. 120 volt-ampere

C. 180 volt-ampere

D. 150 volt-ampere

260. RME Board October 1995

Where the conduits enter a switchboard at the bottom, a sufficient space shall be provided to permit installation of the conductors in the enclosure. The minimum spacing between the bottom of the enclosure and the non-insulated bus bar shall be ________.

A. 155 mm

B. 300 mm

C. 255 mm

D. 200 mm

261. What is the minimum vertical, horizontal or diagonal clearance for open conductors from signs, chimneys, radio and televisions, antennas, tanks, or other non-building structure?

A. 1000 mm

B. 1500 mm

C. 1800 mm

D. 1200 mm

262. Contact device installed at the outlet for the connection of a single attachment plug.

A. Junction box

B. Reactor

C. Rosette

D. Receptacle

263. RME Board April 1996

With respect to the safety value of the insulation on electrical maintenance tools, it can be said properly that

A. the insulation provides very little protection

B. its value is mainly to the untrained electrical helper

C. the insulation should not be used as the only protective measure

D. it adequately insures the safety of the user

264. For the range of 8.75 kW or more in rating, the minimum branch circuit rating shall be

A. 30 A

B. 40 A

C. 50 A

D. 60 A

265. Service heads and goosenecks in service entrance cable shall be ____ point of attachment of the service drop to the building.

A. above the

B. below the

C. at the center of the

D. at the back of the

266. A disruptive discharge around or over the surface of a solid or liquid insulator.

A. Flashover

B. Sparkover

C. Corona

D. Surge

267. The minimum size of service lateral conductors using copper wires shall be _____.

A. 5.5 mm²

B. 3.5 mm²

C. 8.0 mm²

D. 2.0 mm²

268. Plug fuses shall not be installed in circuits exceeding ____ between conductors.

A. 125 V

B. 250 V

C. 300 V

D. 150 V

269. RME Board April 1995

A continuous electrical load is one where the maximum current is expected to continue for a minimum duration of time. What is this minimum duration of time?

A. 1 hour

B. 4 hour

C. 3 hour

D. 2 hour

270. Direct buried conductors and cables emerging from the ground shall be protected by enclosures or raceways extending from the minimum cover distance required to a point ____ above finished grade.

A. 2,000 mm

B. 2,500 mm

C. 2,400 mm

D. 3,000 mm

271. For installations to supply only limited loads of a single branch circuit, service entrance conductors shall NOT be smaller than ____ hard drawn copper.

A. 3.5 mm²

B. 8.0 mm²

C. 5.5 mm²

D. 14.0 mm²

272. The upper most portion of a lightning protection system.

A. Surge Arrester

B. Lightning rod

C. Ground terminal

D. Air terminal

273. Where no standard electrical equipment of the exact size or rating required is available, ____ maybe used.

A. the next lower standard size

B. the next larger standard size

C. any size available

D. none of these

274. RME Board April 1995

The minimum size of service drop copper conductors allowed by the Philippine Electrical Code is one of the following. Which is the size?

A. 3.5 mm²

B. 5.5 mm²

C. 2.0 mm²

D. 8.0 mm²

275. Entrances to rooms and other guarded locations containing exposed energized parts shall be marked with a ______.

A. welcome sign

B. no entry sign

C. warning sign

D. all of these

276. Appliance outlets installed in a dwelling unit for specific appliances, such as laundry equipment, shall be installed within ____ of the intended location of the appliance.

A. 1,800 mm

B. 1,500 mm

C. 2,000 mm

D. 1,000 mm

277. What is the maximum permitted load of a 20-A branch circuit?

A. 20 A

B. 15 A

C. 12 A

D. 16 A

278. For warehouses or storage, a general lighting load of _____ shall never be used.

A. 2 VA/m²

B. 4 VA/m²

C. 8 VA/m²

D. 10 VA/m²

279. Outlets for heavy-duty lamp holders shall be rated ______.

A. 500 VA

B. 600 VA

C. 660 VA

D. 550 VA

280. RME Board October 1996

When fastening an outlet to a brick wall, the electrician should use no one of the following. Which one is this?

A. Expansion bolts

B. Toggle bolts

C. Temporary nail

D. Wooden plug and nail

281. A portion of a lightning protection system extending into the earth.

A. Air terminal

B. Counterpoise

C. Surge Arrester

D. Ground terminal

282. Open conductors passing over public streets, alleys, roads, parking areas subject to truck traffic shall maintain a vertical height _____ from finished grade.

A. 3,700 mm

B. 4,600 mm

C. 5,500 mm

D. 3,100 mm

283. Using copper, the minimum size of service entrance conductors shall be _____.

A. 14.0 mm²

B. 8.0 mm²

C. 5.5 mm²

D. 3.5 mm²

284. RME Board October 1996

When testing the insulation integrity of a new or old electrical wiring installation circuit of 5.5 mm2 conductors, the Code specifies a minimum insulation resistance of what value?

A. 1,000,000 ohms

B. 250,000 ohms

C. 500,00 ohms

D. 100,00 ohms

285. What test is usually made on cables after installation?

A. Copper loss test

B. No-load test

C. Insulation resistance test

D. Ampacity test

286. For four to six conductors in a conduit, the derating factor for the conductor ampacity is ____.

A. 70%

B. 90%

C. 80%

D. 60%

287. RME Board October 1996

When soldering two copper surfaces together, they should be kept clean while heating by

A. applying the solder quickly

B. not admitting the open flame to touch the copper surfaces

C. frequently rubbing the tip with emery cloth

D. the use of flux

288. Circuit of a voltage of 600 V or less in a rigid metal conduit or in a rigid metal conduit or in rigid non-metallic conduit approved for direct burial and placed under driveway and parking areas of a one or two family dwelling units, shall have minimum cover distance of ____.

A. 300 mm

B. 150 mm

C. 460 mm

D. 600 mm

289. Plate electrodes of non ferrous metal shall be at least ____ in thickness.

A. 1.2 mm

B. 1.4 mm

C. 1.5 mm

D. 1.8 mm

290. Conductors are selected at not less than ____ of nameplate rating of the water heater.

A. 125%

B. 100%

C. 120%

D. 130%

291. The Philippine Electrical Code requires at no electrical installation, alteration or addition shall be connected or reconnected to any electrical power supply without _____.

A. payments of application fees

B. a certificate of inspection

C. an electrical permit

D. a certificate of completion

292. Neutral current up to _____ is computed at 100%.

A. 100 A

B. 150 A

C. 200 A

D. 300 A

293. RME Board October 1996

In the general layout of motors and power outlets not exceeding a total of ____ maybe including in the lighting layout provided such inclusion will not make the reading, interpretation and or checking of the said plan difficult.

A. 8

B. 10

C. 12

D. 6

294. Direct grade level access is defined as being located not more than ____ above grade level and being readily accessible.

A. 2,000 mm

B. 1,500 mm

C. 1,800 mm

D. 2,500 mm

295. For the armories and auditorium, the general lighting load shall be ____ VA/m².

A. 8

B. 12

C. 10

D. 16

296. RME Board October 1999

Before the ammeter is disconnected from an energized current transformer circuit, one of the procedures should be followed. Which is the one?

A. Primary winding should be shorted

B. Secondary winding should be shorted

C. Secondary winding should be opened

D. Primary winding should be opened

297. Power conductors on the poles, below communication conductors shall maintain a spacing distance of _____.

A. 760 mm

B. 600 mm

C. 800 mm

D. 540 mm

298. It is the intent of the PEC that factory-installed internal wiring or the construction of the equipment need not be inspected at the time of installation of the equipment EXCEPT

A. to test for continuity

B. to test for durability

C. to detect alternator or damages

D. all of these

299.The standard conductor sizes shall be expressed in

A. mils

B. circular mils

C. square millimeters

D. American wire gauge

300. Mandatory rules of the PEC are characterized by the use of the word ____.

A. shall

B. should

C. both A and B

D. neither A and B

⇒ MCQ in Philippine Electrical Code (PEC) Part 7 | REE Board Exam

Questions and Answers in Philippine Electrical Code

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