Project Planning, Design and Implementation
NEC Electrical and Electronic Engineering · 749 practice MCQs
The chapter on Project Planning, Design and Implementation in the Electrical and Electronic Engineering discipline is crucial for NEC exam candidates. It encompasses essential concepts such as dimensioning, scheduling, and contract performance evaluation, which are pivotal in engineering practice.
With 749 practice MCQs, this chapter equips you with the knowledge to navigate complex project scenarios and avoid common pitfalls. Mastering these topics will not only enhance your exam preparation but also prepare you for real-world engineering challenges.
Sample questions with answers
1.What should be avoided in dimensioning?
- A.Standard symbols
- B.Dimensioning all sides
- C.Mismatch in scale
- D.Ambiguity or redundancy
Why: Ambiguity or redundancy in dimensioning can lead to confusion and misinterpretation of the design, making it essential to avoid these issues for clear communication.
2.Why is discounted payback always greater than simple payback?
- A.Salvage not considered
- B.Future cash flows are discounted
- C.Cash flows not counted
- D.Only depreciation
Why: Discounted payback is always greater than simple payback because it accounts for the time value of money, meaning future cash flows are worth less than their nominal value today.
3.What does lead time in scheduling refer to?
- A.Only float time
- B.Only task duration
- C.Only slack time
- D.Overlap between predecessor and successor activities
Why: Lead time in scheduling refers to the overlap between predecessor and successor activities, which helps to optimize the project timeline by allowing certain tasks to start before others are completed.
4.What does salvage reduce?
- A.Only the discount factor
- B.Only cash inflows
- C.Initial costs for PV calculations
- D.Only depreciation
Why: Salvage reduces initial costs for present value (PV) calculations because it represents the estimated residual value of an asset at the end of its useful life, thus lowering the overall investment needed.
5.What do NEC audits verify?
- A.Float only
- B.Schedule only
- C.Cost only
- D.Checking licensure, registration, and project adherence
Why: NEC audits verify checking licensure, registration, and project adherence to ensure that engineering practices meet the required standards and regulations.
6.What does the critical path indicate?
- A.The shortest task
- B.The longest chain of dependent tasks
- C.How resources are allocated
- D.Only risk factors
Why: The critical path indicates the longest chain of dependent tasks in a project, which determines the minimum completion time and highlights tasks that cannot be delayed without affecting the project schedule.
7.What can result from engineering malpractice?
- A.Only float
- B.Only cost
- C.Civil, criminal, and professional repercussions
- D.Only schedule
Why: Engineering malpractice can lead to civil, criminal, and professional repercussions due to negligence or failure to meet professional standards, impacting safety and compliance.
8.What factors are considered in contract performance evaluation?
- A.Quality, timeliness, cost, and compliance
- B.Only float
- C.Only slack
- D.Only schedule
Why: Contract performance evaluation considers quality, timeliness, cost, and compliance to ensure that all aspects of the contract are being fulfilled as agreed.
9.In the equation for discount factor = 1 / (1 + i)^n, what does n indicate?
- A.Cash inflow
- B.Depreciation amount
- C.Count of periods
- D.Rate of interest
Why: In the discount factor equation, n indicates the count of periods, which represents the number of time intervals over which cash flows are projected and discounted.
10.What is the style of a cutting plane line?
- A.Center line style
- B.Thin continuous line
- C.Dashed line only
- D.Thick chain line with arrows
Why: The style of a cutting plane line is represented by a thick chain line with arrows, which visually indicates where a section is taken in a technical drawing.
11.What types of activities are included in NEC CPD programs?
- A.Only float
- B.Only cost
- C.Only schedule
- D.Workshops, seminars, and training on technical and ethical practices
Why: NEC CPD programs include workshops, seminars, and training on technical and ethical practices to enhance the skills and knowledge of engineering professionals.
12.What can result from engineering malpractice?
- A.Only schedule delays
- B.Only costs
- C.Only float
- D.Legal and professional issues
Why: Engineering malpractice can result in legal and professional issues, as it may lead to lawsuits or disciplinary actions against the engineer for failing to meet industry standards.
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Frequently asked questions
- What should be avoided in dimensioning?
- Avoid ambiguous dimensions that can lead to misinterpretation and errors in design.
- Why is discounted payback always greater than simple payback?
- Discounted payback accounts for the time value of money, making it a more conservative estimate of payback time.
- What does lead time in scheduling refer to?
- Lead time refers to the amount of time required to complete a task before its scheduled start.
- What does salvage reduce?
- Salvage reduces the overall cost of an asset by providing a residual value at the end of its useful life.
- What do NEC audits verify?
- NEC audits verify compliance with engineering standards and regulations to ensure quality and safety in projects.