Question 9014 of 850 · Texas Journeyman Electrician Exam
A rigid metal conduit run leaves a Class I, Division 1 location and enters an unclassified area. Within what distance of the boundary must the boundary seal be installed?
Exactly one answer is correct.
You got of questions right. Here on the question pages nobody remembers which ones you got wrong. The trainer saves your progress and asks the mistakes again until they stick.
Or free: the 10 questions most people get wrong
Show solution
Correct answer to question 9014
- A: 10 ft on either side of the boundary
Explanation
A boundary seal is required where the conduit leaves the Division 1 location and may be placed on either side of the boundary within 10 ft. The raceway between the seal and the boundary must not contain any union, coupling, box, or fitting other than listed explosionproof reducers at the seal.
More questions: Special Occupancies
- 9015Threaded rigid metal conduit in a Class I, Division 1 location must be made up wrenchtight with at least how many fully engaged threads?
- 9016Which wiring method is generally permitted in a Class I, Division 1 location?
- 9017Flexibility is needed at a motor terminal box in a Class I, Division 1 location. Which method is acceptable?
- 9018Enclosures for equipment in a Class II, Division 1 location must generally be of what type?
- 9019What is the basic design principle of explosionproof equipment?
- 9020Intrinsically safe systems covered by Article 504 rely on which protection principle?