PEC, NEC

Question 1

The minimum size of conductors to be used for lighting purposes is _____

Answer 1

2.0 sq. mm

Question 2

The circuit conductors between the final overcurrent device protect the circuit and the outlet(s)

Answer 2

Branch Circuit

Question 3

Any current over the rated current of the equipment or the ampacity of a conductor. It may result from overload, short circuit, or ground fault.

Answer 3

Overcurrent

Question 4

The minimum size of copper equipment conductor required for equipment connected to a
40A circuit is?

Answer 4

8.0 sq. mm

Question 5

What is the maximum allowable continuous load for a branch circuit conductor?

Answer 5

0.8 or 80%

Question 6

Which of the following is not a standard over-current protection device rating?

Answer 6

1500

Question 7

When the temperature of the wire increases, what happens to the resistance?

Answer 7

resistance increases

Question 8

It is the ratio of the maximum demand over the
connected load.

Answer 8

Demand factor

Question 9

What is the color coding for the ground wire in electrical systems?

Answer 9

GREEN

Question 10

Before starting any installation work, alteration, repair, or extension on any electrical system, what type of permit is needed?

Answer 10

Electrical Permit

Question 11

Which type of fire extinguisher is suitable for electrical fires?

Answer 11

CO2 fire extinguisher

Question 12

What does the term “electrical insulation” mean?

Answer 12

The use of protective materials to prevent electrical shocks

Question 13

What PPE Category every personnel must use if the required minimum arc rating of 25 cal/cm??

Answer 13

Category 3

Question 14

Equipment rated 1200 amperes or more shall have at least one entrance with _____ wide and _______ high.

Answer 14

600 mm, 2000 mm

Question 15

_________ are non-current carrying conductors.

Answer 15

Equipment Grounding Conductors

Question 16

The primary purpose of the______________ is to prevent water that runs down the service drop from getting into the service mast.

Answer 16

Drip loop

Question 17

The Electrical Engineering Law, R.A. 7920 Section 31 (a) and (b), authorizes only PEE and REE to take charge of the sales and distribution of electrical equipment and systems requiring engineering calculations or application of engineering data.

Answer 17

TRUE

Question 18

A non-profit organization whose goods are to establish, maintain, and operate laboratories for the investigation of materials, devices,
Industry Association.

Answer 18

FALSE, UNDERWRITERS LABORATORY

Question 19

Section 1.1.2.1 is a provision in the PEC about the “electrical permit before the work is started”

Answer 19

FALSE, SECTION 1.2.1.1

Question 20

PEC Table is the table used for the allowable ampacities of insulated conductors up to 2000 V, 60 deg C through 90 deg C….

Answer 20

TABLE 3.10.2.6(B)(16)

Question 21

In a group of four motors, one motor draws 10 amperes, one draws 45 amperes, and two draws 75 amperes. What size of the conductor must be used for the feeder circuit?

Answer 21

224A

Question 22

Three, 230 volts, 1 phase squirrel cage induction motors each drawing a current of 50 amperes are supplied by copper feeder conductors. The maximum rating of inverse time delay circuit breaker for feeder protection is _________

Answer 22

225A

Question 23

Determine the lighting load required by PEC for a bungalow house measuring 10m x 15m. It has a total of 4500 VA loads for small appliances and laundry circuits. By applying the demand factor, what will be the total load of the dwelling unit?

Answer 23

LL= 3600VA ; TL=4785VA