2023 NEC Article 710 – 728 - All Star Training

Quiz Summary

0 of 10 Questions completed

Questions:

You have already completed the quiz before. Hence you can not start it again.

Quiz is loading…

You must sign in or sign up to start the quiz.

You must first complete the following:

Results

Quiz complete. Results are being recorded.

Results

0 of 10 Questions answered correctly

Your time:

Your Score:

Current
Review
Answered
Correct
Incorrect

Question 1 of 10

1. Question

Access to electrical equipment shall not be denied by _____________ that prevents removal of panels, including suspended ceiling panels. (725.21)

a reduction of wires and cables

an accumulation of conductors

an accumulation of wires and cables

an accumulation of conductors

Correct

Incorrect
Question 2 of 10

2. Question

Cables and conductors installed exposed on the surface of ceilings and sidewalls should be secured by all of the following EXCEPT: (722.24)

Straps

Lampholders

Staples

Hangers

Correct

Incorrect
Question 3 of 10

3. Question

Class 1 circuits shall be supplied from a source with what rated output? (724.40(A))

Less than 15 volts and 500 volt-amperes

Greater than 30 volts and 1000 volt-amperes

Not more than 30 volts and 1000 volt-amperes

Greater than 60 volts and 2000 volt-amperes

Correct

Incorrect
Question 4 of 10

4. Question

Power sources other than transformers shall be protected by overcurrent devices rated ________ percent of the volt-ampere rating of the source divided by the rated voltage. (724.40(B))

at not more than 167

greater than 167

at not more than 75

less than 50

Correct

Incorrect
Question 5 of 10

5. Question

Which of the following is Not true related to Class 1 circuits? (724.48(B)(1))

Shall be permitted to occupy the same cable, enclosure, or raceway without a barrier only where the equipment powered is functionally associated.

Shall be permitted to be installed together with the conductors of power-limited fire alarm.

Shall be permitted to be installed with medium power network-powered broadband communications circuits where separated by a barrier.

Shall be permitted to be installed together with the conductors of electric light.

Correct

Incorrect
Question 6 of 10

6. Question

All the following are listed equipment marked to identify the Class 2 or Class 3 power source EXCEPT: 725.60(A)

Thermocouple

Marking

Limited voltage/current

Storage battery source

Correct

Incorrect
Question 7 of 10

7. Question

Class 2 cables shall have a voltage rating of not less than _______ volts. Class 3 cables shall have a voltage rating of not less than ________ volts. (722.179(A)(14))

100, 150

150, 500

150, 300

300, 1000

Correct

Incorrect
Question 8 of 10

8. Question

In addition to the requirements of the Article 724, circuits and equipment shall comply with which of the follow? (724.3)

Class 1 circuits installed in ducts, plenums, and other spaces used for environmental air shall comply with 392

Vertical installations of circuit integrity (CI) cables and conductors installed in a raceway or conductors and cables of electrical circuit protective systems shall comply with 300.19

Class 1 circuits shall be installed in any hazardous (classified) location

Bushing shall not be installed where cables emerge from raceways used for mechanical support or protection in accordance with 300.15(C)

Correct

Incorrect
Question 9 of 10

9. Question

Power sources other than transformers shall be protected by overcurrent devices rated at not more than ________ of the volt-ampere rating of the source divided by the rated voltage. (724.40(B))

100 percent

125 percent

138 percent

167 percent

Correct

Incorrect
Question 10 of 10

10. Question

Which of the following is false about Class 1 overcurrent device location? (724.45)

Class 1 circuit conductors needs to be tapped where the overcurrent device protecting the circuit conductor is sized to protect the tap conductor.

Overcurrent devices shall be located at the point where the conductor to be protected receives its supply.

Class 1 circuit conductors shall be permitted to be tapped, without overcurrent protection at the tap, where the overcurrent device protecting the circuit conductor is sized to protect the tap conductor.

Class 1 circuit conductors 14 AWG and larger that are tapped from the load side of the overcurrent protective device(s) of a controlled light and power circuit shall require only short-circuit and ground-fault protection and shall be permitted to be protected by the branch-circuit overcurrent protective device(s) where the rating of the protective device(s) is not more than 300 percent of the ampacity of the Class 1 circuit conductor.

Correct

Incorrect

Quiz Summary

Information

Results

Results

Categories

1. Question

2. Question

3. Question

4. Question

5. Question

6. Question

7. Question

8. Question

9. Question

10. Question