PEC

80 %

A 15-A or a 20-A branch circuit shall be pennitted to suppiy lighting units and other utilization devices. The rating of any one cord and piug connected appliance shall NOT exceed a certain percentage of the branch circuit rating. What is this percentage?

16

A 20 ampere rated branch circuit with 3.5 mm2 wire supplying a duplex receptacle can be loaded to a maximum of _____ amperes.

muitiple occupancy, building fire pumps, emergency electrical system

A building or other structure served shall be supplied by only one service drop EXCEPT for

3 Hours

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?

Outlet

A point in a wiring system at which current is taken to be used in some equipment.

80 A

A three phase general purpose squirrel cage motor draws a full load current of 40 A. What is the maximum size of time delay fuses that may be used for short circuit protection?

Concealed knob and tube wiring

A wiring method using knobs, tubes, and flexible non-metallic tubing for the protection and support of single insulated conductors concealed in hollow spaces of walls and ceilings of buildings.

Minus 5% to plus 10%

AC equipment on board watercraft shall operate satisfactorily at the following voltage limitations. Which one is correct.

Rigid metal, rigid non metal, flexible metal

According to its make, conduits maybe classified as

300 volts

According to the PEC, the minimum insulation level for neutral conductors of residential installations, which have solidly grounded system, shall NOT be less than _____.

300 V

According to the code the minimum insulation level for neutral conductor of residential installation which have solidly grounded system shall be ______

300 V

Any unguarded metal sheathed service cable, service conduits, metal fixtures and similar non current,carrying parts, if located in urban districts and where liable to be charged to more than a certain voltage to ground shall be isolated or guarded so as not to be exposed to accidental contact by unauthorized persons. What is this voltage?

600 mm wide x 2000 mm high

As a general rule, equipment rated 1,200 A or more and measuring more than 1,900 mm wide, containing overcurrent devicés, shall have an entrance at both ends of the switchboard room. The width and height of each entrance shall be NOT than following dimensions. Which one is correct?

125%

Branch circuit conductors supplying a single motor shall have an ampacity in terms of the full load current of not less than

maximum permitted ampere rating

Branch circuits are classified according to

20 A

Branch lighting circuits shall be protected by overcurrent devices not rated more than

The busway is open and of the ventilator type

Busways shall be permitted to be installed behind panels if means if access are provided and if the conditions below are met. One of them is NOT valid. Which one is this?

Hoistways

Cable trays shall not be used in which of the following applications?

True

Communication conductors shall NOT be attached to a crossam below electric light and power conductors under Art 10.1.3.1 (a) (2).

2.0 mm^2

Communication conductors shall NOT be smaller than which of the fotiowing sizes?

True

Conductors of AC and DC rated up to 600 V nominal shall be permitte to occupy the same equipment wiring enclosure, cable tray or racewer (pipes). Is this being allowed under Sec 5.1.1.3 ( c) (1) Art 5.17

Bonding

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

3000 volt-amperes

Determine the minimum appliance and laundry load require for a dwelling unit.

3,680

For a dwelling unit having a floor area NOT more than 50 square meters shall be permitted to have a single 20-Ampere, 2-wire branch circuit provided the total load shall NOT exceed how many volt amperes?

300 mm

For a rigid steel conduit of trade diameter 50 mm, the field bend shall be so made that the radius of the inner edge shall not be less than a certain radius for conductors without lead sheathed. What is this radius?

100 %

For dwelling units, the demand factor for the first 3000 voit-amperes of load is

30 A

For installation consisting of not more than 2 wire branch circuits, the service disconnecting mains shall be rated NOT less than what rating?

1,000,000 ohms per kV rating

For voltages above 600 V, the minimum insulation resistance shall be

4,600 mm

Give the minimum vertical clearance from finished grade of a service drop conductor installed between buildings on residential properties and driveways?

counterpoise

How do you call the conductor encircling a building and interconnecting all ground materials?

1,100 mm

If a 460-Volts switchboard has exposed parts on one side and grounded parts or concrete on the opposite side, what working clearance between the two sides is permitted by the Code?

5

If the project is extensive and requires more time for checking and for computation of fees, the issuance of the electrical permit need not he issued immediately but the delay shall not be longer than how many working days?

14.0 mm2

If the service conductors are aluminum of copper-clad aluminum, what is the minimum size permitted?

100 A

If there will be six or more 2 wire branch circuits for a one family dwelling unit, how much is the minimum service entrance capacity required?

8

In dwelling units, when the actual number of receptacle outlets is not known, an additional load of volt-ampere per square meter shall be included.

460 mm

In each conduit run entering an entering an enclosure for switches, circuit breakers, relays and other may produce high temperature, seals on the conduit shall be installed within a certain length before entering the enclosure. What is the length?

180 voit-ampere

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

1.5 mm

In rigid metal conduit, the minimum electrical trade size is

25%

In the computation of the size of building wire, the PEC requires that at least a certain percent increase must be added, what percent is this?

1.5 mm

In wiring using rigid metal conduits, conduit smaller than ________ shall NOT be used.

natural gray

Insulated ground conductor of 14 mm2 or smaller shall be identified by a continuous white outer finish. along its entire length or another color which is

Where exposed to direct sunlight

Medium voltage cable shall be permitted for installation on the following EXCEPT one. Which one is this?

1800 mm

Outlets installed in a dwelling unit for specific appliances, shali be installed within what distance of the intended location of the appliance?

300 mm

Service entrance cables shaff be supported by straps or other approved means within ____ Service entrance cables shaff be supported by straps or other approved means within of every service head, gooseneck or connection to a raceway

760 mm

Service entrance cables shal be supported by straps or other approved means at intervals NOT exceeding

2,500 mm

Service entrance conductors passing over roofs shall have a clearance over the roof which they pass of

1300 mm

Supports cable should have intervals NOT exceeding

50 volts

The Code requires that all energized part of electrical equipment operating at___ or more shall be guarded against accidental contacts by approved enclosures. What is this voltage?

1.5 hours

The alternate or back up source of power in a hospital shall have a capacity to sustain its connected loads for a minimum of how many hours?

125

The branch circuit conductors that supply one or more units of data processing systems shall have an ampacity NOT less than_____ percent of the total connected load.

Feeder

The circuit conductors .between the service entrance equipment or isolated generating plant and the branch circuit overload device or devices.

Branch circuits

The circuit conductors between the final overcurrent device protecting the circuit and the outlets.

1.35 mm

The construction of metal cabinets and cutout boxes shall be such as to secure strength and rigidity. If constructed of uncoated sheet steel , the metal thickness should NOT be less than ______.

Green

The equipment grounding conductor of a branch circuit shall be identified by what color?

Buried interior PVC water piping system

The grounding electrode for grounding communications system may be connected to the nearest accessible location on any of the following EXCEPT one. Which one is this?

100 mm

The maximum size of liquid tight flexible metal conduit shall be ______ trade size

8.0 mm

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

3100 mm

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

125%

The rating of the overcurrent device shall not be less than the non continuous load plus a percentage of the continuous load.

2.0 mm2

The surge arrester for services less than 1000 volts connected by copper conductor for grounding electrode conductor or the equipment grounding terminal shall not be smaller than _______.

80%

The total load on over current device located in a panel board shall not exceed s certain percentage of its rating. What is this percentage?

Service lateral

The underground service conductors between the street main, including any risers at the pole or other structure or from transformer and the first point of connection to the service entrance conductors in a terminal box The point of connection is considered to be the point of entrance of the service conductors into the building.

24watts

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

Conduits Shall be permitted to be used in sand fill which is subject to permanent moisture.

The use of rigid metal conduits shall be permitted under all atmospheric conditions subject to the following except one. Which one is this?

Where subject to corrosive vapors

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

Isolate from energized buses, equipment which are not in service

The usual function of a disconnect switches in high voltage circuits is to ___________.

I and III only

The_____ or other descriptive marking by which the organization responsible for the product maybe identified, shall be placed on all electric equipment. I. Trademark II. Cost III. Manufacturer's name

1,500 volt-amperes

To provide for small appliance load in a dwelling unit, the feeder should be computed at

I and II only

Type SE service entrance cable shall be permitted in interior wiring systems where all of the circuit conductors of the cable are of the type. Type SE service entrance cable shall be permitted in interior wiring systems where all of the circuit conductors of the cable are of the type. I. Rubber-covered II. Thermoplastic III. Metal

Lighting panelboard

What does the symbol consisting of rectangle with solid shading indicate?

It is easier to skin off the insulation

What is the exception in the advantages when comparing solid wires with stranded wires of the same cross saction?

5 percent

What is the maximum allowable voltage drop from the main circuit breaker to the farthest lamp load?

30 conductors

What is the maximum number of conductors permitted in a wireway ar any cross section, signal circuit or starter-control wires are not included?

48 devices

What is the maximum number of overcurrent devices of a lighting and appliance panel board that shall be installed in a cabinet?

75 °C

What is the maximum operating temperature of type THWN conductor?

460 mm

What is the minimum burial depth required for rigid non-metalic conduit approved for direct burial without concrete encasement?

1000 mm

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

500,000 ohms

What is the minimum insulation resistance of a building's eiectrical wiring for circuits using 2.0 mm2 or 3.5 mm2 conductors?

14.0 mm2

What is the minimum size of aluminum or copper ctad aluminum conductors, used as service entrance conductors?

2.5 mm

What is the minimum thickness of face plates for insulating material that are non-combustible?

3100 mm

What is the minimum vertical clearance for service drop conductors (not over 600 vclts) above finished grade or sidewalks accessibie only to pedestrians?

1000 mm

What is the minimum vertical, horizontal or diagonal clearance for open conductors from signs, chimneys, radio and television antennas, tanks or other non building structures?

80%

When circuit breakers are installed in enclosed switchboards, they are usually derated to a certain percentage. What is this percentage?

50 mm

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 ______ of distance from the nearest edge of the framing member. What is this distance?

the wire might break

When removing insulation from the wire before making the splice, care should be taken to avoid nicking the wire (slightly cutting into the wire) because of one of the following. Which one is this?

250,000 ohms

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

24A

Where receptacles are connected to a 30-A branch circuit, the maximum aliowable cord and plug connected load shali not be more than

1000 mm

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

White

Which of the following colors identifies the grounded conductor of a branch circuit?

Flexible meta! conduit

Which of the following raceways is NOT suitable for installation in wet locations?

Overcurrent devices may be located inside clothes closets

Which of the following statements is NOT correct?

Armored Cable

Which of the following wiring cables is most suitable for shipboard installations?

Resistance

Which type of temperature detector is used in motor windings?

Board of Electrical Engineering

Who shall make the final decision in the interpretation of controversial provisions of the Philippine Electrical Code?

MI

Wires or cables used in dry and wet locations for over 2000 volts insulation and ozone resistant with moisture and heat resistant rubber and has a maximum operating temperature of 90°C is_____ type.

1500 mm

Wireways shall be supported at intervals NOT exceeding a certain minimum Distance. How much is this distance?

Flat Conductor Cable

Wirings allowed to be installed outside buildings are enumerated below Except one. Which one is it?

1,000 mm

in all cases where there are energized parts on the front of the switchboards or motor control centers. the working space in front of such equipment shall NOT be less than a minimum distance. What is this distance?

10

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

Separated

underground communication conductors in a raceway, handhole or manhole containing electric light and power conductors, shall be in a section ______ from such conductors by means of separator (brick concrete or tile) under Art 10.1.3.2(a)