✅ Solution Manual for Operations Management
Sustainability and Supply Chain Management, 13th
Edition by Jay Heizer, Barry Render, Chuck Munson
Questions with Answers and Solutions
Q1. Which NEC Article covers the requirements for branch circuits?
A. Article 100
B. Article 110
C. Article 210
D. Article 240
✔ Answer: C
Solution: Article 210 covers branch circuits and their installation requirements.
Q2. The purpose of the NEC is primarily to:
A. Increase wiring speed
B. Ensure safe electrical installation
C. Lower installation cost
D. Improve electrical aesthetics
✔ Answer: B
Solution: NEC 90.1(A) states the Code’s purpose is the practical safeguarding of people
and property.
Q3. Article 250 in the NEC covers:
A. Wiring methods
B. Overcurrent protection
C. Grounding and bonding
D. Motors
✔ Answer: C
Solution: Article 250 focuses on grounding and bonding rules.
Q4. Conductors must be sized according to their allowable ampacity found in:
A. Table 310.16
, B. Table 225.55
C. Table 240.6
D. Table 110.15
✔ Answer: A
Solution: Table 310.16 lists conductor ampacities.
Q5. The minimum working clearance in front of electrical equipment (0–150V to ground) is:
A. 1 ft
B. 3 ft
C. 4 ft
D. 6 ft
✔ Answer: B
Solution: NEC 110.26(A)(1) requires 3 ft minimum clearance.
Q6. GFCI protection is required for receptacles in which of the following areas?
A. Garage
B. Office
C. Bedroom
D. Storage room
✔ Answer: A
Solution: NEC 210.8(A)(2) requires GFCI protection in garages.
Q7. The maximum number of conductors allowed in a box is determined by:
A. Wire gauge and box volume
B. Color of insulation
C. Voltage rating
D. Type of breaker
✔ Answer: A
Solution: NEC 314.16 uses box fill calculations by conductor volume.
Q8. The neutral conductor of a grounded system is identified by:
A. Green
B. Red
C. Yellow
D. White or gray
✔ Answer: D
Solution: NEC 200.6 requires white or gray identification.
Sustainability and Supply Chain Management, 13th
Edition by Jay Heizer, Barry Render, Chuck Munson
Questions with Answers and Solutions
Q1. Which NEC Article covers the requirements for branch circuits?
A. Article 100
B. Article 110
C. Article 210
D. Article 240
✔ Answer: C
Solution: Article 210 covers branch circuits and their installation requirements.
Q2. The purpose of the NEC is primarily to:
A. Increase wiring speed
B. Ensure safe electrical installation
C. Lower installation cost
D. Improve electrical aesthetics
✔ Answer: B
Solution: NEC 90.1(A) states the Code’s purpose is the practical safeguarding of people
and property.
Q3. Article 250 in the NEC covers:
A. Wiring methods
B. Overcurrent protection
C. Grounding and bonding
D. Motors
✔ Answer: C
Solution: Article 250 focuses on grounding and bonding rules.
Q4. Conductors must be sized according to their allowable ampacity found in:
A. Table 310.16
, B. Table 225.55
C. Table 240.6
D. Table 110.15
✔ Answer: A
Solution: Table 310.16 lists conductor ampacities.
Q5. The minimum working clearance in front of electrical equipment (0–150V to ground) is:
A. 1 ft
B. 3 ft
C. 4 ft
D. 6 ft
✔ Answer: B
Solution: NEC 110.26(A)(1) requires 3 ft minimum clearance.
Q6. GFCI protection is required for receptacles in which of the following areas?
A. Garage
B. Office
C. Bedroom
D. Storage room
✔ Answer: A
Solution: NEC 210.8(A)(2) requires GFCI protection in garages.
Q7. The maximum number of conductors allowed in a box is determined by:
A. Wire gauge and box volume
B. Color of insulation
C. Voltage rating
D. Type of breaker
✔ Answer: A
Solution: NEC 314.16 uses box fill calculations by conductor volume.
Q8. The neutral conductor of a grounded system is identified by:
A. Green
B. Red
C. Yellow
D. White or gray
✔ Answer: D
Solution: NEC 200.6 requires white or gray identification.
