Building Design Concept Load Estimate Quiz
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Questions and Answers

What type of switchgear is used in the text?

  • C SF6 LBS 630A + Fuse N.C RMU
  • Radial RMU To Dist.Tr.SF6 CB 630A
  • N.C RMU To Dist.Tr.N.C N.C N.C
  • All of the above (correct)

    • What is the purpose of the 'Concept Design' phase in the design process?

  • Load estimate, categorization of tie-in bulk equipment, zoning, and block diagram (correct)
  • Panel schedule preparation
  • Lighting and small power design
  • Cable sizing and earthing

    • According to the Egyptian Electrical Company Regulation, what is the power density requirement for a specific space application?

  • $20 VA/m^2$ (correct)
  • $25 VA/m^2$
  • $10 VA/m^2$
  • $15 VA/m^2$

    • What is the simultaneity factor according to the IEC for an assembly with 10 or more circuits?

    <p>0.6</p> Signup and view all the answers

    According to the IEEE code, what is the recommended lighting power density for a specific area?

    <p>$10 W/m^2$</p> Signup and view all the answers

    What is the recommended simultaneity factor according to the IEC for an assembly with 4 and 5 circuits?

    <p>0.8</p> Signup and view all the answers

    What are the two main points discussed in the Building Design Concept Load Estimate, Zoning, and Conceptual SLD SE Sponsorship 2021?

    <p>Design Phases and Zoning</p> Signup and view all the answers

    Which type of network architecture involves each feeder connected to two busbars, each busbar being sectionalizable?

    <p>Double busbar with automatic bus-section</p> Signup and view all the answers

    In which scenario is the simple radial system (or single-line service) network architecture satisfactory?

    <p>Rural distribution areas</p> Signup and view all the answers

    What does the abbreviation 'CB' stand for in the context of the Egyptian 22 or 11 KV network?

    <p>Circuit Breaker</p> Signup and view all the answers

    Which type of architecture is operated by complicated supply possibilities?

    <p>Parallel feeders with bus couplers</p> Signup and view all the answers

    What is the main advantage of the Double busbar or parallel feeders network architecture?

    <p>Sectionalizable operation</p> Signup and view all the answers

    What is the simultaneity factor for 20 to 24 consumers in an apartment block according to the IEC?

    <p>0.49</p> Signup and view all the answers

    In industrial installations, the simultaneity factor for the most powerful motor may be:

    <p>1</p> Signup and view all the answers

    What is the formula for calculating IB in terms of motor In and starting current Id?

    <p>$IB = \frac{1}{3} (\text{motor In} + \text{Id})$</p> Signup and view all the answers

    How is the simultaneity factor applied to a 5-storey apartment block with different numbers of consumers on each floor?

    <p>It varies based on the number of consumers</p> Signup and view all the answers

    What is the simultaneity factor for 35 to 39 consumers in an apartment block according to the IEC?

    <p>0.42</p> Signup and view all the answers

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