PEC Excel
Master Your PEC Excel Knowledge
Welcome to the PEC Excel Quiz! Test your knowledge on electrical codes and standards with our comprehensive 25-question assessment. Whether you're a student, a professional in the electrical field, or simply curious about electrical systems, this quiz is designed to enhance your understanding and skills.
- Multiple choice format
- Covers key concepts of electrical codes
- Ideal for review or certification preparation
This is a device capable to drawing lighting discharge to it in preference to vulnerable parts of the protected area. It may consist of a pointed, solid, or tubular rod or one with special design and material provided with a mounting base having a proper conductor connection.
Cable
Chimney
Bonding
Air Terminal
Branch circuits larger than ___ amperes shall supply only non-lighting outlet loads.
20
25
30
50
The maximum number of overcurrent devices that maybe installed in a lightning panel is ___.
36
48
42
24
A single-family dwelling unit having a floor area of 45 sq. Meter has a total connected load of 2575 VA. What is the minimum size of service entrance conductor?
8.0 sq. mm
3.5 sq. mm
2.0 sq. mm
5.5 sq. mm
What is the branch circuit demand for a 12-kW range and a 5 kW cook top in a residence of 230 volt, 1 – phase?
11 kW
14,6 kW
13 kW
17.5 kW
_______ is a device intended to open the circuit when it detects the current waveform characteristic that are unique to arching fault.
GFCI
AFCI
KAIC
KAMD
Which among the following permits the use of Flexible Metallic Tubing (FMT)?
Hoistways
For system voltages of 1000 Volts maximum
Storage battery rooms
In lengths over 1800 mm
An electric power production system that is operating in parallel with and capable of delivering energy to an electric primary source supply system is called ___.
Grounding system
Hybrid system
Interactive system
Identified system
If three dwelling units are supplied by a single feeder, use a demand factor of ___ percent.
45
44
42
40
For overcurrent protection for secondary connections where secondary ties are used, an overcurrent device rated or set at not more than ___ percent of the rated secondary current of the transformers shall be provided in the secondary connections of each transformer supplying the tie system.
200
150
115
250
Conductor sizes 8.0 mm² (3.2 mm dia.) installed across open spaces shall be permitted up to ___ mm apart if noncombustible for securing and supporting.
4500 mm
3000 mm
2600 mm
1400 mm
For a dwelling unit having a floor area of not more than 50 square meters with a total load not exceeding 3680 VA, a drawing sheet of size ___ is permitted.
297 mm x 460 mm
297 mm x 420 mm
500 mm x 760 mm
400 mm x 420 mm
P.E.C requires that resistance to ground of a single electrode consisting of rod, pipe or plate shall be ___.
25 ohms or less
50 to 75 ohms
Above 100 ohms
30 to 50 ohms
The permitted full – load current of a 1 kW, 200 V, three – phase induction type squirrel cage is ______ amperes.
4.6
4.2
4.3
4.8
In dwelling units, the demand factor of the first 3000 VA for lighting load is ___ percent.
75
100
25
50
Conduit seals shall be installed within ___ mm of the enclosure in each conduit entry into a pressurized enclosure where the conduit is not pressurized as part of the protection system.
200 mm
250 mm
350 mm
450 mm
For cellular concrete floor raceways, the maximum size of conductor for installation is ______.
80 mm²
75 mm²
50 mm²
100 mm²
Which of the following doesn’t allow the insulation of open wiring on insulators?
Wet or dry locations
Subject to corrosive vapors
Outdoors
A location that is concealed by the building structure
Three squirrel – cage induction motors rated as follows: 25 HP, 34 Amp full load, 20 HP, 27 Amp full load, and 10 HP, 14 Amp full load all rated at 460 volts, 3 phase, 60 Hz are to be served by a feeder circuit for an ambient temperature of 30℃. What is the net computed current for feeder conductors?
91.5 A
83.5 A
105 A
86.3 A
Which of the following is a standard rating of fixed – trip inverse time CB?
75
1500
50
750
The ampacity of capacitor circuit conductors shall not be less than ____ percent of the rated current of the capacitor.
125
135
100
150
If the ungrounded supply conductors are larger than 500 mm² or 850 mm² aluminum, the grounded conductor or bonding jumper shall have an area not less than ___ percent of the area of the largest ungrounded supply conductor or equivalent area for parallel supply conductors.
10
12.5
115
25
What size of grounding conductor required for circuit protected by 30 Ampere circuit breaker?
3.5 sq. mm
5.5 sq. mm
8.0 sq. mm
2.0 sq. mm
Receptacle outlet shall be located not more than ___ mm above countertop.
250
300
500
450
The residual voltage of a capacitor shall be reduced to ___ volts, nominal or less with ___ minute/s after the capacitor is disconnected from the source of supply.
50, 1
0, 0.5
15, 2
30, 3
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