1|Page
WA Master Electrician 07Nonresidential
Maintenanceination (OLD VERSION) Exam ACTUAL
VERIFIED QUESTIONS AND ANSWERS LATEST
UPDATE.pdf
For a service panel fed by parallel 3/0 AWG copper
conductors, the copper GROUNDING - ELECTRODE run
from the service panel to the metallic water service shall
be at least size ____________ AWG
A) 4
B) 2
C) 1/0
D) 2/0 - Answer-2
(table 250.66)
A dry - type TRANSFORMER may be LOCATED in a
suspended ceiling space where it is not ready
ACCESSIBLE if the voltage is 600 volts or less and has a
maximum rating of ____________ kva
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A) 10
B) 25
C) 50
D( 112 - Answer-50
(article 450.13 (B) )
A SERVICE head can be located no further away from the
point of attachment than ____________ inches
A) 18
B) 24
C) 36
D) 48 - Answer-24"
(article 230.54) (C) (exceptions)
ACCEPTABLE METHODS of connecting GROUNDING
and BONDING conductors include all the following,
EXCEPT:
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A) Solder joints
B) Terminal bars
C) Exothermic weld
D) Listed pressure connectors - Answer-solder joints
(article 250.8 (A)
The amount of available fault current at the service
depends upon the :
A) Method of bonding
B) Method of grounding
C) Size and impedance of the service transformer
D) Ampere rating of the over current protection device -
Answer-Size and impedance of the service transformer
( general knowledge )
, 4|Page
For a residential service calculation, heat pump loads are
required to be calculated at _______________ percent of
the nameplate rating when used without any supplemental
electric heating.
A) 65
B) 80
C) 100
D) 125 - Answer-100%
(article 220.82 (C) (2) )
Where the footing steel serves as the only grounding
electrode for a building , does the code require a
maximum resistance in ohms for this concrete encased
electrode?
A) Yes, 0 ohms
B) Yes, 25 ohms
C) Yes, 50 ohms
WA Master Electrician 07Nonresidential
Maintenanceination (OLD VERSION) Exam ACTUAL
VERIFIED QUESTIONS AND ANSWERS LATEST
UPDATE.pdf
For a service panel fed by parallel 3/0 AWG copper
conductors, the copper GROUNDING - ELECTRODE run
from the service panel to the metallic water service shall
be at least size ____________ AWG
A) 4
B) 2
C) 1/0
D) 2/0 - Answer-2
(table 250.66)
A dry - type TRANSFORMER may be LOCATED in a
suspended ceiling space where it is not ready
ACCESSIBLE if the voltage is 600 volts or less and has a
maximum rating of ____________ kva
,2|Page
A) 10
B) 25
C) 50
D( 112 - Answer-50
(article 450.13 (B) )
A SERVICE head can be located no further away from the
point of attachment than ____________ inches
A) 18
B) 24
C) 36
D) 48 - Answer-24"
(article 230.54) (C) (exceptions)
ACCEPTABLE METHODS of connecting GROUNDING
and BONDING conductors include all the following,
EXCEPT:
,3|Page
A) Solder joints
B) Terminal bars
C) Exothermic weld
D) Listed pressure connectors - Answer-solder joints
(article 250.8 (A)
The amount of available fault current at the service
depends upon the :
A) Method of bonding
B) Method of grounding
C) Size and impedance of the service transformer
D) Ampere rating of the over current protection device -
Answer-Size and impedance of the service transformer
( general knowledge )
, 4|Page
For a residential service calculation, heat pump loads are
required to be calculated at _______________ percent of
the nameplate rating when used without any supplemental
electric heating.
A) 65
B) 80
C) 100
D) 125 - Answer-100%
(article 220.82 (C) (2) )
Where the footing steel serves as the only grounding
electrode for a building , does the code require a
maximum resistance in ohms for this concrete encased
electrode?
A) Yes, 0 ohms
B) Yes, 25 ohms
C) Yes, 50 ohms
