Exam (elaborations)
AE 311 - Electrical Exam Questions And Answers Latest Update
- Course
- AE 311
- Institution
- Iowa State University
AE 311 - Electrical Exam Questions And Answers Latest Update
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Solution 2024/2025Pepper
AE 311 - Electrical Exam Questions And
Answers Latest Update
Name the project stages for a building project using the Traditional Model
ANS✔✔ 1. Project Definition
2. Schematic Design
3. Design Development
4. Construction Documents
5. Bidding and Award
6. Construction
7. Warranty Phase
What is the name of the document that contains Owner directions and
requests for a building project? ANS✔✔ Owner Project Requirements (OPR)
What is the name of the document the design team assembles to explain
what their design is going to include? ANS✔✔ Basis of Design (BOD)
What are the project documents which contain project requirements and
design narratives are part of the LEED certification process? ANS✔✔ OPR
and BOD
What are the design stages in a normal project's design process ANS✔✔ 1.
Information Gathering
2. Organization of Information
, Solution 2024/2025
Pepper
3. Initial Design
4. Review and Feedback
5. Complete Design
What are the deliverables that are often created by the Electrical Design
Team during the design process? ANS✔✔ Schematic Report; Basis of
Design; Preliminary Drawings and Specifications; Construction Documents
This graph shows what kind of electrical power
(Constant current over time) ANS✔✔ Direct Current (DC)
This graph shows what kind of electrical power
(Changing current in a wave pattern over time) ANS✔✔ Alternating Current
(AC)
Electrical equipment and conductors are primarily rated by maximum
current. Why? ANS✔✔ Maximum current value is selected that will not
overheat the conductors or equipment
What is Ohm's Law? ANS✔✔ E = I x R or E = I x Z
In Kirchoff's Laws, the algebraic sum of current flow at any point in a circuit
is what? ANS✔✔ Equal to zero
In Kirchoff's Laws, the algebraic sum of voltages in an entire circuit is what?
ANS✔✔ Equal to zero
, Solution 2024/2025
Pepper
If your circuit has five total 5‐ohm resistances connected in series, what is
the equivalent resistance? ANS✔✔ 25 ohms
If your circuit has five total 5-ohm resistances connected in parallel, what is
the equivalent resistance? ANS✔✔ 1 ohm
What happens when an electrical conductor passes through a magnetic
field? ANS✔✔ Voltage and current flow (only for complete circuit)
A rotating coil (conductor) passing through a fixed magnetic field produces
varying voltage and current which simulate what kind of wave? ANS✔✔ Sine
Wave
This vector diagram is an illustration of what electrical value?
(A triangle with legs labeled Watts (real) and VAR (imaginary), and the
hypotenuse labeled VA total power) ANS✔✔ Power Factor (PF)
What is the power factor if the meter is reading 100kW and 117.6kVA?
ANS✔✔ .85=PF
Why is a poor power factor (lower number) a concern for the power
distribution system and Owner? ANS✔✔ 1. This means the total current is
higher, but since the kW remains the same, more power is not being
provided
2. Higher current results in more heat which will degrade the electrical
insulation on components leading to earlier component failure
3. Utility companies charge for kVAR's so utility bills will be higher
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