5 MINUTE

Tech Quiz

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installations

Test Your Knowledge on Grounding & Bonding

1. The requirements for grounding and bonding can be found in ________________.

a. The National Grounding and Bonding Standard

b. The National Electrical Code

c. The National Fire Alarm and Signaling Code

d. UL 457

2. According to Annex O OF NFPA 70E-2018, what is an effective tool to reduce arc flash hazards?

a. High Quality Digital Multimeter

b. Ground strap

c. High Impedance Grounding

d. Rubberized floor mat

3. If a single rod, pipe, or plate grounding electrode has a resistance to earth of 25 ohms or less, _____________________.

a. the supplemental electrode shall not be required

b. the supplemental electrode shall be required

c. the grounding electrode conductor shall be bonded to the intersystem ground

d. the grounding electrode shall be at least 20 feet from the structure

4. Aluminum grounding electrode conductors shall be permitted to have terminations made within outdoor enclosures _____________________.

a. at least 6 inches above the bottom of the enclosure

b. at least 2 inches from all side of the enclosure

c. within 18 inches of the bottom of the enclosure

d. using conductors at least 6AWG

5. The intersystem bonding termination device shall be _________________.

a. accessible for connection and inspection

b. readily accessible for connection and inspection

c. a minimum of 12AWG copper

d. within all enclosures

6. Equipment grounding conductors shall be permitted to be ____________.

a. bare

b. covered

c. insulated

d. All of the above

e. None of the above

7. Equipment grounding conductors shall have an outer finish that is either ______________.

a. green or green with 3 yellow stripes

b. bare or green with 3 yellow stripes

c. green or green with 1 or more yellow stripes

d. bare or bare with 3 or more green stripes

8. Power-limited Class 2 fire alarm cables, operating at less than 60 volts dc shall be permitted to use a conductor with _________________.

a. green or green with 3 yellow stripes

b. bare or green with 3 yellow stripes

c. green or green with 1 or more yellow stripes

d. bare or bare with 3 or more green stripes

9. Direct-current fire alarm circuits, having a maximum current of 0.030 ampere shall ___________________.

a. be required to be grounded

b. not be required to be grounded

c. be connected to the buildings intersystem bonding termination device

d. comply with Article 725, Part II

10. Requirements for grounding of systems and circuits of over 1000 volts can be located in ________________.

a. NFPA 70, Article 250 Part X

b. NEC Section 760

c. NEC Section 250 Part III

d. Article I of the NEC

Roy Pollack, CPP, SET, holds Level IV certification in the field of fire alarms from NICET.
He is currently a director of training and compliance for Comcast/Xfinity Home and may be reached at
sdmtechtips@bnpmedia.com.

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