9. A weatherproof metal junction box measuring 4 m. × 4 m. × 6 in, has been inst

Question

9. A weatherproof metal junction box measuring 4 m. × 4 m. × 6 in, has been installed to support a luminaire. Two rigid metal conduits have been threaded wrenchtight into the threaded entries of the enclosure. The box has not yet been secured to the brick wall. but both conduits have been strapped to the wall 16 in. from the box. What additional support (from the following list) is required for this box? 1. Two metal screws with plastic anchons Il. Two toggle bolts IH. Two drive pins a) none b) I or Il only c) I or Ill only d) I. II, or III 10. Where permanent barriers are installed in a junction box, each section shall be consid ered as a(n) What is the maximum number of 12 AWG THW conductors permitted im a i-im octagon box that ity in. deep? (The les stytilillis a fixture stud and 11. hickey.) 2 A means must be provided in cach metal box tot the connection of 13. Installations within or belirdsurtaceofenc Fcte, tilr.ep um. paste, er other non cornbustible material, including bores r#Tkying a tla h t pe meet #tiiertar, ih be inade so that the front cdge of the bos. plaster mig t Monum t# orlised estetider will not be set back of the tinshed sort mre than 14 Nounmetallu buses shall be ntable for the EwEt om the mtsdr ot ronctete l hil.li eri ti Hel ihtTH tmg 1 eme ned tt a e s

Explanation / Answer

9. None

Reason :- An enclosure that contains devices or support luminares ,lamholders etc can be supported by entering raceways when all of the conditions are met :-

10.  Where permanent barriers are installed in a box, each section shall be considered as a  separate box.

11. Eight conductors.

12. Grounding Equipment conductor.

13. question not clearly visible so unable to answer.

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