問題一覧
1
The PE C. 2017 edition, is approved by board resolution No.
18
2
In the preparation of Philippine Electrical Code (P.E.C.) 2009 part 1 the National Electrical Code (N.E.C.)_______ was used as the main reference
2005
3
__________ are used to provide explanatory material, references to other sections precautions to be observed, and further mandatory requirements
fine print notes
4
For hermetic motor what rule is the disconnecting means is 115% of the full load current?
Wiring Design Rule
5
Which is NOT the basic rule of P.E.C. 20097
Contruction Rule
6
Vehicle washing areas are considered as ________ location
wet
7
What is the minimum size of grounding electrode copper conductor?
3.5 sq. mm
8
What is the maximum number of conductors permitted in a wireway at any cross-section signal circuit or starter-control wires are not included
30
9
Where multiple rod, pipe or plate electrodes are installed to meet the requirement of PEC, they shall not be less than ___________ mm apart
1,800
10
The PEC has assigned the color secondary. to the high-leg of a 4-wire delta connected
orange
11
What is the advantage of PVC over Polyethylene?
flame retardant
12
What is the maximum number of disconnect for service mains given by PEC?
6
13
As a general nule for conductors in parallel alupising each prided aluminum or copper and arallel electeutral or groundes conductorductor, shall be permitted to be connected in parallel (electrically formed at bo ends to form a single conductor)
50
14
What is the required Volt-Amp for lighting of an office building with 500 sq mis area?
14,000
15
What is the branch circuit demand for two-14 KW range in a residence of 1-phase 230 Volt?
12.1 kW
16
Calculate total load for a 1-phase, 230 Volt branch circuit supplying two-3kW and two 4KW wall-mounted oven
42.2 Amp
17
What is the neutral load for a 1 system having 150 Amp of electric-discharge lighting and 250 Amp of incandescent lighting
385 Amp
18
What is the maximum current allowed on a # 12 AWG (3.5 sq.mm) THHN copper conductor in an ambient temperature of 122°F (50°C) with a total of six (6) current- carrying conductors in the conduit? (use: Derating factor of 80% for 6 conductors and correction factor of 0 82 at 50°C)
24.6 Amp
19
What is the minimum ampacity of feeders with motor and other load connected?
125 % motor FL current plus other current
20
A hermetic motor-compressor has 25 Amp full load current. What is the rating of disconnecting means?
28.75 Amp
21
The ampacity of capacitor circuit conductors shall not be less than__________ precent of the rated current of the capacitor
135
22
On solar photovoltaic system, ampacity of conductors and overcurrent devices shall not be less than percent of the computed current
125
23
PEC requires that resistance to ground of a single electrode consisting of rod, pipe or plate shall be
25 ohms or less
24
What size of grounding conductor required for arcuit protected by 30 Amp circuit breaker?
2.0 sq.mm
25
What is the minimum size copper bonding jumper for a service raceway containing 100 mm² THHN aluminum conductors?
22 mm^2
26
___________ is a device intended to open the circuit when it detects the current waveform characteristic that are unique to arcing fault
AFCI
27
is a device intended to open the circuit when it detects the current waveform characteristic that are unique to arcing fault
42
28
What is the purpose of PEC 20097
Safeguarding of person and property
29
For dwelling units, the demand factor for the first 3000 Volt-Amp of load is
100%
30
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 service entrance conductor?
3.5 sq.mm
31
Additional feeders or branch circuits shall be permitted where the capacity requirements are in excess of_______ Amp at the supply voltage of_______ Volts or less
2000,600
32
Which of the following is a standard rating of fixed-trip inverse time CB?
50
33
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 mm above the floor or working platform
2,000
34
What is the demand factor for a single 8 kW household electric range?
80%
35
Every Circuit Breaker having an interrupting rating other than interrupting rating shown on the breaker itself. shall have its
5000 Amp
36
Lamp holders installed over highly combustible material shall be of the _______type
unswitched
37
The main purpose of bonding jumper is to connect equipment grounding conductors and ____________ to the grounded conductor of the system
service-disconnect enclosure
38
What is the maximum allowable distance interval between supports securing busways?
1,500 mm
39
A 3-way and 4-way switches shall be so wired that all switching is done in the conductor
ungrounded
40
What is the minimum size of grounding rod?
16 mm
41
What is the minimum size of wire in lighting outlet?
2.0 sq.mm
42
Which is the safest type of insulation for indoor wiring installation especially residential and commercial buildings
Polyvinyl chloride
43
What is the maximum bend of Rigid Metallic Conduit (RMC)?
2 quarter
44
Sign and outline lighting outlets shall be computed at a minimum of VA for each required branch circult
1200
45
A hermetic motor-compressor has a rated load current of 20 Amp What is the allowable ampacity of branch circuit conductor?
20 Amp
46
What is the minimum ampacity of conductor for room air conditioner with 12 Amp rated current?
15 Amp
47
According to Philippine Electrical Code, at ambient temperature of 30°C, 80 mm² copper conductors with the following insulation have the following ampacities TW insulation= 30 Amp, THW insulation= 45 Amp, THHN insulation= 50 Amp. If each of these insulated wires carry the same 40 Amp, which will generate heat the fastest
TW insulated wire
48
Code name for polyethylene insulation or PVC 75°C
THW
49
The short circuit temperature rating of PVC insulated building wires for 30 second period
150/160°C
50
Before installation of power cables the basic DC test voltage in ascending more according to ICEA (Insulated Cable Engineer Association) specification for 100% insulation level in terms of rated voltage is not above?
5 times
51
Common cause of failure in termination of cable is
Impropoer insulation & penciling
52
What is the normal bending radius from inner edge of conduits with relation to diameter?
8-9 times
53
Short arcuit temperature of Polyethylene cable in degree centigrade is
200
54
What is the minimum distance receptacle outlet of a show window in meters?
4
55
Receptacle outlet shall be located not more than __________ mm above countertop.
450
56
ñ Branch circuit larger than __________Amp shall supply only non-lighting outlet load
50
57
What is the distance from the flooring to the receptacle outlet in dwelling unit in mm?
1800
58
In dwelling units, at least one wall receptacle outlet shall be installed within mm of the outside edge of basin or bath tub
900 mm
59
In dwelling units, at least one receptacle outlet for hallways more than ______ meter
3
60
The lighting load for a dwelling unit expressed in terms of volt-ampere per sq. meter must be at least ________
28
61
The lighting load for an office expressed in terms of volt-ampere per square meter must be at least
16
62
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
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1
The PE C. 2017 edition, is approved by board resolution No.
18
2
In the preparation of Philippine Electrical Code (P.E.C.) 2009 part 1 the National Electrical Code (N.E.C.)_______ was used as the main reference
2005
3
__________ are used to provide explanatory material, references to other sections precautions to be observed, and further mandatory requirements
fine print notes
4
For hermetic motor what rule is the disconnecting means is 115% of the full load current?
Wiring Design Rule
5
Which is NOT the basic rule of P.E.C. 20097
Contruction Rule
6
Vehicle washing areas are considered as ________ location
wet
7
What is the minimum size of grounding electrode copper conductor?
3.5 sq. mm
8
What is the maximum number of conductors permitted in a wireway at any cross-section signal circuit or starter-control wires are not included
30
9
Where multiple rod, pipe or plate electrodes are installed to meet the requirement of PEC, they shall not be less than ___________ mm apart
1,800
10
The PEC has assigned the color secondary. to the high-leg of a 4-wire delta connected
orange
11
What is the advantage of PVC over Polyethylene?
flame retardant
12
What is the maximum number of disconnect for service mains given by PEC?
6
13
As a general nule for conductors in parallel alupising each prided aluminum or copper and arallel electeutral or groundes conductorductor, shall be permitted to be connected in parallel (electrically formed at bo ends to form a single conductor)
50
14
What is the required Volt-Amp for lighting of an office building with 500 sq mis area?
14,000
15
What is the branch circuit demand for two-14 KW range in a residence of 1-phase 230 Volt?
12.1 kW
16
Calculate total load for a 1-phase, 230 Volt branch circuit supplying two-3kW and two 4KW wall-mounted oven
42.2 Amp
17
What is the neutral load for a 1 system having 150 Amp of electric-discharge lighting and 250 Amp of incandescent lighting
385 Amp
18
What is the maximum current allowed on a # 12 AWG (3.5 sq.mm) THHN copper conductor in an ambient temperature of 122°F (50°C) with a total of six (6) current- carrying conductors in the conduit? (use: Derating factor of 80% for 6 conductors and correction factor of 0 82 at 50°C)
24.6 Amp
19
What is the minimum ampacity of feeders with motor and other load connected?
125 % motor FL current plus other current
20
A hermetic motor-compressor has 25 Amp full load current. What is the rating of disconnecting means?
28.75 Amp
21
The ampacity of capacitor circuit conductors shall not be less than__________ precent of the rated current of the capacitor
135
22
On solar photovoltaic system, ampacity of conductors and overcurrent devices shall not be less than percent of the computed current
125
23
PEC requires that resistance to ground of a single electrode consisting of rod, pipe or plate shall be
25 ohms or less
24
What size of grounding conductor required for arcuit protected by 30 Amp circuit breaker?
2.0 sq.mm
25
What is the minimum size copper bonding jumper for a service raceway containing 100 mm² THHN aluminum conductors?
22 mm^2
26
___________ is a device intended to open the circuit when it detects the current waveform characteristic that are unique to arcing fault
AFCI
27
is a device intended to open the circuit when it detects the current waveform characteristic that are unique to arcing fault
42
28
What is the purpose of PEC 20097
Safeguarding of person and property
29
For dwelling units, the demand factor for the first 3000 Volt-Amp of load is
100%
30
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 service entrance conductor?
3.5 sq.mm
31
Additional feeders or branch circuits shall be permitted where the capacity requirements are in excess of_______ Amp at the supply voltage of_______ Volts or less
2000,600
32
Which of the following is a standard rating of fixed-trip inverse time CB?
50
33
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 mm above the floor or working platform
2,000
34
What is the demand factor for a single 8 kW household electric range?
80%
35
Every Circuit Breaker having an interrupting rating other than interrupting rating shown on the breaker itself. shall have its
5000 Amp
36
Lamp holders installed over highly combustible material shall be of the _______type
unswitched
37
The main purpose of bonding jumper is to connect equipment grounding conductors and ____________ to the grounded conductor of the system
service-disconnect enclosure
38
What is the maximum allowable distance interval between supports securing busways?
1,500 mm
39
A 3-way and 4-way switches shall be so wired that all switching is done in the conductor
ungrounded
40
What is the minimum size of grounding rod?
16 mm
41
What is the minimum size of wire in lighting outlet?
2.0 sq.mm
42
Which is the safest type of insulation for indoor wiring installation especially residential and commercial buildings
Polyvinyl chloride
43
What is the maximum bend of Rigid Metallic Conduit (RMC)?
2 quarter
44
Sign and outline lighting outlets shall be computed at a minimum of VA for each required branch circult
1200
45
A hermetic motor-compressor has a rated load current of 20 Amp What is the allowable ampacity of branch circuit conductor?
20 Amp
46
What is the minimum ampacity of conductor for room air conditioner with 12 Amp rated current?
15 Amp
47
According to Philippine Electrical Code, at ambient temperature of 30°C, 80 mm² copper conductors with the following insulation have the following ampacities TW insulation= 30 Amp, THW insulation= 45 Amp, THHN insulation= 50 Amp. If each of these insulated wires carry the same 40 Amp, which will generate heat the fastest
TW insulated wire
48
Code name for polyethylene insulation or PVC 75°C
THW
49
The short circuit temperature rating of PVC insulated building wires for 30 second period
150/160°C
50
Before installation of power cables the basic DC test voltage in ascending more according to ICEA (Insulated Cable Engineer Association) specification for 100% insulation level in terms of rated voltage is not above?
5 times
51
Common cause of failure in termination of cable is
Impropoer insulation & penciling
52
What is the normal bending radius from inner edge of conduits with relation to diameter?
8-9 times
53
Short arcuit temperature of Polyethylene cable in degree centigrade is
200
54
What is the minimum distance receptacle outlet of a show window in meters?
4
55
Receptacle outlet shall be located not more than __________ mm above countertop.
450
56
ñ Branch circuit larger than __________Amp shall supply only non-lighting outlet load
50
57
What is the distance from the flooring to the receptacle outlet in dwelling unit in mm?
1800
58
In dwelling units, at least one wall receptacle outlet shall be installed within mm of the outside edge of basin or bath tub
900 mm
59
In dwelling units, at least one receptacle outlet for hallways more than ______ meter
3
60
The lighting load for a dwelling unit expressed in terms of volt-ampere per sq. meter must be at least ________
28
61
The lighting load for an office expressed in terms of volt-ampere per square meter must be at least
16
62
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