[ikeng05]

it is common occurrence of cracks in ceiling cause by electrical conduits..the cracks occur along electrical conduits

 

[oh'mike]

No--never seen that---

 

[Just Bill]

Electrical runs either as wires or in conduit(for residential construction) run in,or thru, the center of joists, so they are not supposed to be near drywall or plaster. Cracks along panel joints that are not properly nailed/screwed are not uncommon.

 

[Ron6519]

it is common occurrence of cracks in ceiling cause by electrical conduits..the cracks occur along electrical conduits

Are these conduits on the ceiling's surface?
Post some photos.