# Chicago 303 Supervising Electrician Practice Exam (Chicago Electrical Code 2018 Edition)

174 Questions | Total Attempts: 672  Settings  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.

• 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.
• 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.)

Related Topics Back to top