NCCER ELECTRICAL LEVEL 3 Module 6 'Distribution Equipment'.pdf file:///C:/Users/HP/Desktop/New%20folder%20(2)/NCCER%20EL
NCCER Electrical Level 3 Module 6
'Distribution Equipment'
Questions & Answers
1. Which of the following is true with regard to switchboards
Answer Switchboards areused to subdivide large blocks of power
2. When installing wiring within switchgear, use self adhesive cable ties every
.
Answer 12" (300mm)
3. The maximum voltage that a piece of equipment can withstand is known asits
.
Answer Basic impulse insulation level (BIL)
4. Bolted pressure switches are often used in place of .
1/3
1 of 10 11/18/2024, 3:26
,NCCER ELECTRICAL LEVEL 3 Module 6 'Distribution Equipment'.pdf file:///C:/Users/HP/Desktop/New%20folder%20(2)/NCCER%20EL
Answer Circuit breakers
5. A transformer's temperature rise rating refers to .
Answer The maximum elevationabove ambient temperature that the transformer can
withstand without insulation damage
6. A service has a three-phase supply with 14 single-pole circuits and 4
three-pole circuits.The minimum number of poles required is .
Answer 30
7. Per NEC Section 408.3(E)(1), AC phasing in switchboards must be labeled
.
Answer A,B,C from front to back, top to bottom, or left to right when read facing
thefront of the switchboard
8. On a typical electrical diagram, the standard abbreviation for a phase meteris
.
Answer PH
2/3
2 of 10 11/18/2024, 3:26
NCCER Electrical Level 3 Module 6
'Distribution Equipment'
Questions & Answers
1. Which of the following is true with regard to switchboards
Answer Switchboards areused to subdivide large blocks of power
2. When installing wiring within switchgear, use self adhesive cable ties every
.
Answer 12" (300mm)
3. The maximum voltage that a piece of equipment can withstand is known asits
.
Answer Basic impulse insulation level (BIL)
4. Bolted pressure switches are often used in place of .
1/3
1 of 10 11/18/2024, 3:26
,NCCER ELECTRICAL LEVEL 3 Module 6 'Distribution Equipment'.pdf file:///C:/Users/HP/Desktop/New%20folder%20(2)/NCCER%20EL
Answer Circuit breakers
5. A transformer's temperature rise rating refers to .
Answer The maximum elevationabove ambient temperature that the transformer can
withstand without insulation damage
6. A service has a three-phase supply with 14 single-pole circuits and 4
three-pole circuits.The minimum number of poles required is .
Answer 30
7. Per NEC Section 408.3(E)(1), AC phasing in switchboards must be labeled
.
Answer A,B,C from front to back, top to bottom, or left to right when read facing
thefront of the switchboard
8. On a typical electrical diagram, the standard abbreviation for a phase meteris
.
Answer PH
2/3
2 of 10 11/18/2024, 3:26
