Chicago 303 Supervising Electrician Practice Exam (Chicago Electrical Code 2018 Edition)
Please choose the "best" choice for each question. You'll have 4-hours to complete the 150 question exam. Covers the following section : Principles and Practices of Electricity Chicago Administration Chapters 2,4, and 13 OSHA Safety Practices 2018 Chicago Electrical Code (NEC 2017) Good Luck!
- 1.⦁ What is used to measure resistance directly?
- A.
Amp Meter
- B.
Multi Meter
- C.
Volt Meter
- D.
Ohmeter
- 2.
⦁ What does this symbol represent?- A.
Adjustable capacitor
- B.
Capacitor
- C.
Battery
- D.
Disconnect
- 3.⦁ What is a Ohm?
- A.
Unit of Power
- B.
Unit of Electrical resistance
- C.
Unit of Ampere
- D.
Inductance
- 4.⦁ What is used to measure resistance directly?
- A.
Amp Meter
- B.
Multi Meter
- C.
Volt Meter
- D.
Ohmeter
- 5.⦁ What is an Ampere?
- A.
Rate of flow of electricity
- B.
Electromotive FORCE) Is the FORCE or pressure, measured in Volts, which makes the electrons move or tends to do so.
- C.
Measured in Amperes, movement or flow of electricity.
- D.
Are properties of an electrical circuit that opposes current.
- 6.⦁ What is Ampacity?
- A.
Always flows in the same direction
- B.
Moving in one direction reversed at regular intervals.
- C.
Maximum current in amperes, that a conductor can carry under continuously under the conditions of use without exceeding its temperature rating.
- D.
Provided that the temperature remains constant, the ratio of potential difference (p.d.) across the ends of a conductor (R) to the current (I) flowing in that conductor will also be constant
- 7.⦁ What is Electric Current?
- A.
Are properties of an electrical circuit that opposes current.
- B.
Measured in Amperes, movement or flow of electricity.
- C.
An alternating current flows through a conductor, there is an inductive action whereby the current in the conductor is forced toward its surface.
- D.
Converting electrical in an AC system at one voltage or current into electrical power at some other voltage or current the use of rotating parts.
- 8.⦁ What is EMF?
- A.
Always flows in the same direction
- B.
Measured in Amperes, movement or flow of electricity.
- C.
Moving in one direction reversed at regular intervals.
- D.
FORCE or pressure, measured in Volts, which makes the electrons move or tends to do so.
- 9.⦁ Is a Volt a unit of EMF?
- A.
True
- B.
False
- 10.⦁ You can test volts with Ammeter and volt-millimeter?
- A.
True
- B.
False
- 11.⦁ Direct Current
- A.
Always flows in the same direction
- B.
Flows in opposite directions
- C.
All of the above
- D.
None of the above
- 12.⦁ Alternating Current tends to move in one direction?
- A.
True
- B.
False
- 13.⦁ Coulombs Law V=IxR Amps x Resistance Provided that the temperature remains constant, the ratio of potential difference (p.d.) across the ends of a conductor (R) to the current (I) flowing in that conductor will change.
- A.
True
- B.
False
- 14.⦁ What describes the skin effect?
- A.
When an alternating current flows through a conductor, there is an inductive action whereby the current in the conductor is forced toward the inner surface.
- B.
When an alternating current flows through a conductor, there is an inductive action whereby the current in the conductor is forced toward its surface.
- C.
None of the above
- 15.⦁ Reactance and resistance are properties of an electrical circuit that opposes current. The main difference between resistance and reactance is that resistance measures the opposition to a flow of current, whereas reactance measures the direction of current.
- A.
True
- B.
False
- 16.⦁ Conductors for underground wiring
- A.
Shall be XHHW
- B.
Shall be THWN
- C.
Shall be Wet Listed
- D.
Shall be XLP
- 17.⦁ A transformer is best described as converting electrical in an AC system at one voltage or current into electrical power at some other voltage or current the use of rotating parts.
- A.
True
- B.
False
- 18.⦁ A transformers primary winding is connected to the source of power, it will have high voltage winding only.
- A.
True
- B.
False
- 19.⦁ Advantage of three-phase transformer?
- A.
Lower cost, Less efficiency, less floor space and weight, simpler wiring, less cost transportation
- B.
Higher cost, higher efficiency, less floor space and weight, simpler wiring, less cost transportation
- C.
Lower cost, higher efficiency, less floor space and weight, simpler wiring, less cost transportation
- D.
Lower cost, higher efficiency, greater floor space and weight, simpler wiring, more cost transportation
- 20.⦁ If a faulty temporary GFCI receptacle is found, what should happen?
- A.
Notify supervisor on-site.
- B.
Contact the General Contractor
- C.
Contact the owner
- D.
Fix it immediately
- 21.⦁ Voltage Drop @75degress for a #3/0 cable travelling a 100’ @ 15A, 120v?
- A.
.20
- B.
.16
- C.
.005
- D.
.017
- 22.⦁ Power factor Is the ratio of the true power or watts to the apparent power or voltamperes.
- A.
True
- B.
False
- 23.⦁ If violations that threaten life, health or safety are found,
- A.
Cut power to the building.
- B.
A fine of $1,000.00 will be issued.
- C.
Building can be closed.
- D.
Warning will be provided.
- 24.⦁ If a sign permit has been denied, what option does the contractor have, who has the final say?
- A.
(AHJ) Building Commissioner
- B.
Inspector
- C.
General Contractor
- D.
Supervising Electrician
- 25.⦁ What is the permit fee for an electrical sign 3x4 ft double sided sign?
- A.
Review fee $80 plus $1.20 per Sq. Ft. (Over 200 square.ft.)
- B.
Review fee $20 plus $1.00 per Sq. Ft. (Over 100 square.ft.)
- C.
Review fee $40 plus $1.50 per Sq. Ft. (Over 100 square.ft.)
- D.
Review fee $600 plus $1.50 per Sq. Ft. (Over 100 square.ft.)
Questions: 150 | Attempts: 31744 | Last updated: Mar 22, 2022
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