Professional Engineering Exam Electric Power Engineering


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Professional Engineering Exam Electric Power Engineering Study Guide
Education and Training Evaluation Commission (ETEC) National Center for Assessment (NCA)
May 2019

NCA Professional Engineers Exam - Instruction Manual for Preparation of Exam Questions: Electric Power Engineering
COPYRIGHT NOTICE
Copyrights © 2019 National Center for Assessment (NCA) Unless stated otherwise, copyright in this report (including content and design) is owned by the National Center for Assessment (NCA) - Riyadh – Saudi Arabia. EXCEPT with the expressed written permission from NCA, you may not reproduce, use (in particular for academic or commercial purposes), store in a retrieval system, adapt, modify, communicate to the public or photocopy any part of this report.
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NCA Professional Engineers Exam - Instruction Manual for Preparation of Exam Questions: Electric Power Engineering
Table of Contents
Copyright Notice 1. Aim 2. Exam Structure 3. Table of Specifications 4. Standards for Power Engineering 5. Samples of Questions 6. Solution of Samples of Questions

Page
2 4 4 8 9 20 25

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NCA Professional Engineers Exam - Instruction Manual for Preparation of Exam Questions: Electric Power Engineering
1. Aim:
The objective of this Instruction Manual is to provide guidelines for the NCA proposed Professional Engineers Exam. These guidelines cover the eligibility conditions, the grading and passing conditions, the structure of the exam and the distribution of exam questions among various areas. In essence, this Instruction Manual represents a “bridge” between the developed exam standards and the actual phrased questions. It is designed to help item writers prepare questions in the Electric Power Engineering Discipline Exam as well as a study guide for the examinees.
2. Exam Structure:
2.1 Exam Type
The exam is initially paper-based with questions being a combination of multiple- choice questions (MCQ) and essays.
2.2 Exam Organization
The exam will be conducted in two sessions during one day. The duration of the first session is 2.5 hours while the second section is 4 hours long. There is one-hour break between the two sessions.
2.2.1. Session #1
The first session is the common part to be taken by all the examinees from all disciplines. This part includes seven topics: (Ethics – Professionalism - Laws for Professional Practice, Professional Laws and Regulation - Environment and Natural Resources Engineering Management - Engineering Economics - Health, Safety & Security (HSS)). The total duration of this session is 2.5 hours and the total number of questions is 30 MCQ and 2 essays.
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NCA Professional Engineers Exam - Instruction Manual for Preparation of Exam Questions: Electric Power Engineering

2.2.2. Session #2
The second session is the Discipline Part. The following engineering disciplines are considered:

Code STE GTE TRE WREE PE HVAC TFSE CHE FPE ARCH

Discipline
Structural Engineering Geotechnical Engineering Transportation Engineering Water Resources and Environmental
Engineering Power Engineering Heating, Ventilation, and Air Conditioning (HVAC) and Refrigeration Engineering Thermal and Fluids Systems Engineering Chemical Engineering Fire Protection Engineering
Architecture

The total duration of this session is 4 hours and the total number of questions is 30 MCQs and 4 essays. The examinee must answer all the MCQs and two essays out of four.

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NCA Professional Engineers Exam - Instruction Manual for Preparation of Exam Questions: Electric Power Engineering
2.3 Eligibility for the Exam
The eligibility to register for the exam is according to the Saudi Council of Engineers (SCE) rules and regulations.
2.4 Grades
Each part (common part and discipline part) carries a total grade of 100. The MCQs carry a grade of 60% while the essays carry a grade of 40%. Each MCQ has 4 choices for the answer. There is no negative marking for wrong answers.
2.5 Passing Rules
• The eligible candidate must take in his/her first sitting the two exam parts (common part and discipline part).
• In order to pass the exam, the candidate must obtain a grade of 60% or above in each part of the exam.
• If the candidate fails both parts of the exam (by receiving in each part a grade less than 60%), he/she can take the two parts of the exam but only when one full year has passed.
• If the candidate fails only one part of the exam (common part or discipline part), he/she must repeat only the part he/she failed, but he/she must pass this part within one year.
• If a year passed and the candidate did not succeed in passing the part he/she failed, then he/she has to take both parts of the exam.
2.6 Exam Rules
• No printed or electronic material is allowed during the exam. All necessary reference materials will be provided by NCA
• Calculators approved by NCA are allowed. • Comprehensive exam rules will be provided by the examination authority, NCA, in
a separate manual.
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NCA Professional Engineers Exam - Instruction Manual for Preparation of Exam Questions: Electric Power Engineering

3. Table of Specifications for Electric Power Engineering Exam:

Major Area 1. General Electric Power

Multiple Choice Questions (MCQs)

% of Test

# Q

13.3

4

Essay Questions

Engineering Standard

--

PWRE-T1

2. Electric Circuit Analysis

13.3

4

--

PWRE-T2

3. Electric Machines

16.7

5

PWRE-T3

4. Power Electronics

13.3

4

PWRE-T4

5. Power System Operations

16.7

5

4

PWRE-T5

6. Power System Protection

13.3

4

PWRE-T6

7. Renewable Energy Total

13.3 100%

4

PWRE-T7

30

Choose 2 out of 4

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NCA Professional Engineers Exam - Instruction Manual for Preparation of Exam Questions: Electric Power Engineering
4. Standards for Architecture:
The Engineering Standards for the Electric Power Engineering Discipline are structured based on the following 7 applied topics:
PWRE -T1 General Electric Power. PWRE -T2 Electric Circuit Analysis. PWRE -T3 Electric Machines. PWRE -T4 Power Electronics. PWRE -T5 Power System Operations. PWRE -T6 Power System Protection. PWRE -T7 Renewable Energy. The above topics cover all the branches of the electric power engineering and the most important practical experiences in this field. Each of these topics has a number of indicators that ensure that the engineer has the necessary experience to work in electric power engineering area. These areas are mainly on electric machines, power electronics, power system engineering, and renewable energy applications that are summarized in the following.
PWRE -T1: General Electric Power
General electric power consists of the topics that all electric power engineers should be familiar with. These topics contain many general indicators like Electric Safety and Hazard Protection, General Power Engineering, and National/international Electric Code that are shown in the following:
PWRE -T1.1 Electric Safety and Hazard Protection
PWRE-T1.1.1 Understand how to check the efficiency and adequacy of safety equipment/grounding systems, and identify the suitable personal protective equipment for different operating voltages.
PWRE-T1.1.2 Recognize the risks of different operating voltage levels and the required actions in case of electric hazard emergency.
PWRE-T1.1.3 Revise the standards, legislations and guidelines for electrical safety in the workplace.
PWRE-T1.1.4 Understand the concept of arc flash and its precaution.
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NCA Professional Engineers Exam - Instruction Manual for Preparation of Exam Questions: Electric Power Engineering
PWRE-T1.1.5 Understand electric safety aspects of large-scale solar PV power plants and prevention of electric arc in DC circuits.
PWRE-T1.1.6 Understand the levels of currents associated with different levels of shock hazards and recognize the situations which can result in shock hazards.
PWRE -T1.2 General Power Engineering
PWRE-T1.2.1 Practice how to measure insulation resistance of a given apparatus and know the limits of insulation resistance of different equipment.
PWRE-T1.2.2 Recognize different insulation tests such as dielectric absorption ratio, step voltage test, and spot-reading test, etc. and recognize the difference between AC and DC resistance tests.
PWRE-T1.2.3 Understand the factors that affect the grounding resistance, and methods of measuring its value.
PWRE-T1.2.4 Recognize the main functions of major equipment used in the generation, transmission, and distribution of electric power.
PWRE-T1.2.5 Recognize the practical energy management techniques for national, utility, community, household scales.
PWRE-T1.2.6 Understand the installation requirements for rooftop solar PV systems and economic calculations.
PWRE-T1.2.7 Design of illumination, lighting systems, and energy efficient lighting with LEDs.
PWRE-T1.2.8 Understand the basics of engineering economics.
PWRE-T1.2.9 Understand how to calculate the electricity tariff for residential and commercial buildings with and without solar PV installations.
PWRE-T1.2.10 Understand the electric system structure in a deregulated market environment.
PWRE -T1.3 National/international Electric Code
PWRE-T1.3.1 Recognize the Saudi Electrical Code SBC 401, the standard protection against electric shock and lightning, standard for wiring systems, isolation, grounding, and power factor improvement.
PWRE-T1.3.2 Recognize the National Electrical Safety Code (ANSI C2, NESC), standards for electric power supply, and the required specifications and standard for overhead lines and equipment.
PWRE-T1.3.3 Understand the effects of current and voltage harmonics in electric power distribution systems and review IEEE 519 standards.
PWRE-T1.3.4 Understand IEEE 1547 and IEC 61727 standards for interconnecting renewable energy systems to electric grid.
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NCA Professional Engineers Exam - Instruction Manual for Preparation of Exam Questions: Electric Power Engineering
PWRE-T1.3.5 Recognize the Saudi grid code.
PWRE -T2: Electric Circuit Analysis
Engineers in all electric power engineering branches should be familiar with electric circuits. There are two main topics in electric circuits: DC circuits and AC circuits. The practical engineering problems are based on the electric circuit fundamentals. The indicators of electric circuits are shown in the following:
PWRE -T2.1 DC Circuits
PWRE-T2.1.1 Analyze series-parallel DC circuits, using circuit analysis methods such as Kirchhoff's current and voltage laws, Nodal, loop methods.
PWRE-T2.1.2 Analyze given circuit to find Thevenin’s and Norton’s equivalents and apply maximum power transfer theorem.
PWRE-T2.1.3 Analyze the transient response of first order DC circuits.
PWRE -T2.2 AC Circuits
PWRE-T2.2.1 Analyze series-parallel AC circuits, using circuit analysis methods such as Kirchhoff's current and voltage laws, node and loop methods, Laplace transform.
PWRE-T2.2.2 Analyze a given circuit to find Thevenin’s and Norton’s equivalents and apply maximum power transfer theorem and superposition theorems in AC circuits.
PWRE-T2.2.3 Analyze frequency response & resonance, filter circuits and two-port networks.
PWRE-T2.2.4 Understand the concept of independent and dependent power sources and conversion of voltage & current sources.
PWRE-T2.2.5 Understand sinusoidal sources, wye-delta connections and the concept of phasors in circuit analysis.
PWRE-T2.2.6 Understand the concept of magnetically coupled circuits, ideal transformer and ideal operational amplifier circuits.
PWRE-T2.2.7 Analyze power factor improvement techniques for single/three-phase AC circuits.
PWRE-T2.2.8 Understand how to measure power factor, electric power (watts) in AC circuits with harmonic currents drawn by nonlinear loads.
PWRE-T2.2.9 Understand the techniques used for power measurement in three-phase circuits.
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Professional Engineering Exam Electric Power Engineering