FREE AND STUDY GAMES ABOUT LESSON 2 ARTICLE 110

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FREE AND STUDY GAMES ABOUT LESSON 2 ARTICLE 110

EXAM QUESTIONS

Actual Qs and Ans Expert-Verified Explanation

This Exam contains:

-Guarantee passing score -24 Questions and Answers -format set of multiple-choice -Expert-Verified Explanation Question 1: ) Manufacturers are required by 110.21 to mark their products so the manufacturer can be identified. The marking may consist of ____(

Answer:

Trademark and manufacturer's name

Question 2: Unused openings in boxes are generally required to be ______.

Answer:

closed Question 3: Working clearances about electrical equipment 600 volts or less shall not be less than___ wide or the width of the equipment,be clear and extend from the floor to___or the height of the equipment,allow at least a___ degree opening of all doors

Answer:

30 " wide

• 1/2 feet

90 degree

Question 4: 1) 110.12(B) warns against the possible _____ to electrical equipment due to paint, plaster, cleaners, or abrasives and other corrosive or chemical agents.

Answer:

Damage Question 5: When the word conductor is not identified with a material, it indicates the use of

______.

Answer:

copper Question 6: On a 4-wire, delta-connected system where the midpoint of one phase winding is grounded to supply lighting and similar loads, the conductor or busbar having the higher phase voltage to ground shall be durably and permanently marked in what color?

Answer:

orange

Question 7: 3) List the two ways conductor sizes are expressed.

Answer:

AWG or circular mils Question 8: The temperature rating associated with the ampacity of a conductor shall be so selected and coordinated as to not exceed the lowest temperature rating of any

• connected termination
• conductor
• device

Answer:

all of the above connected termination conductor and device Question 9: In general. The Code requires that live parts of electrical equipment operating at ______ or more shall be guarded against accidental contact.

Answer:

50 Volts

Question 10: Why does the NEC specify that sufficient access and working space shall be provided and maintained about all electric equipment?

Answer:

To permit ready and safe operation and maintenance of such equipment. 110.26 Question 11: Each disconnecting means shall be legibly ___ to indicate its purpose unless located and arranged so the purpose is evident

Answer:

marked Question 12: A piece of electrical equipment with a UL label on it shall be installed in accordance with any _______ included in the listing or labeling.

Answer:

instructions Question 13: Which of the following is/are required by 110.22 when the disconnecting means is remotely located?

Answer:

• Each disconnecting means shall be legibly marked
• The marking shall be of sufficient durability to withstand the environment

both of these Question 14: Wooden plugs driven into a masonry wall (shall/or shall not) be used for mounting electrical equipment.

Answer:

shall not Question 15: Electrical equipment which are in other than dwelling units and are likely to require examination, adjustment, servicing, or maintenance while energized shall be ______ to warn qualified personnel of potential electric arc flash hazards

Answer:

field marked Question 16: 2) When the term voltage is used throughout the Code, it means the voltage at which the circuit _____.

Answer:

operates

Question 17: Is it generally required to mark the maximum available fault current on service equipment installed in other than dwelling units?

Answer:

Yes 110.24 A Question 18: 110.14(B) requires a splice in a conductor to be covered with an insulation_____.

Answer:

equivalent to the conductors insulation Question 19: For equipment rated ____ or more and over six 'wide, that contains overcurrent devices, switching devices, or control devices, there shall be one entrance and egress from the working space not less than 24" wide and 6 ½'high at each end of the workspace

Answer:

1,200 amperes Question 20: Electrical equipment provided with ventilating openings (shall/shall not) be installed so that the ventilated openings are not _______

Answer:

shall obstructed Question 21: 4) Electrical equipment shall be installed in a(n) _____and _____ manner.

Answer:

neat and workmanlike Question 22: For electrical equipment rated 600 volts the space equal to the width and depth of the equipment from the floor to a height of _ above the equipment or to the structural ceiling, whichever is lower, shall be dedicated to the electrical installation

Answer:

• feet

Question 23: Which of the following statements is/are true according to 110.14(A) for terminals?

• Terminals for more than one conductor shall be so identified.
• Terminals used to connect aluminum conductors shall be so identified

Answer:

both 1 and 2