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26304-11 Hazardous Locations

1. Equipment that is incapable of releasing sufficient electrical energy to cause ignition of a hazardous atmospheric mixture is considered ________.

Question 1 of 15

2. Which of the following is approved for use in most Class I, Division 1 locations?

Question 2 of 15

3. Anesthetizing locations of hospitals are considered to be Class I, Division 1 locations to a height of ________.

Question 3 of 15

4. Locations in which flammable gases or vapors may be present in the air in quantities sufficient to produce explosive or ignitable mixtures are identified as ________.

Question 4 of 15

5. The main purpose of an explosionproof flexible coupling is to connect ________.

Question 5 of 15

6. In hazardous locations where threaded metal conduit is required, threaded joints must be made up with at least how many threads fully engaged?

Question 6 of 15

7. In general, when are seals typically installed?

Question 7 of 15

8. The main purpose of seals or sealoffs in conduit runs is to ________.

Question 8 of 15

9. The requirements of electrical equipment and wiring for all voltages in locations where fire or explosion hazards may exist are covered in ________.

Question 9 of 15

10. What is the classification and division of all floor-level areas up to a height of 18" in an airport hangar?

Question 10 of 15

11. Which of the following locations are hazardous due to the presence of combustible dust?

Question 11 of 15

12. Which of the following best describes the devices that will help prevent moisture from collecting in raceway systems?

Question 12 of 15

13. The space in the immediate vicinity inside of the motor dispensing unit at an automotive service station is identified as a ________.

Question 13 of 15

14. A Class I, Division 1 location is best described as an atmosphere that ________.

Question 14 of 15

15. Which of the following covers intrinsically safe equipment?

Question 15 of 15