Never asked, but very much doubt it. the job involved handling large weights of dough, and face nails would easily get damaged or leave residue in the food. jewellery (aside from wedding bands) aren't allowed.
No. You cannot have any nail polish on of any sort. Cannot have jewelry on, necklaces, rings, bracelets, large earrings. Hair must be worn up at all times and correct uniform must be tidy.
No because we are handling foods and it would get in the way and its unhygienic.
Fake nails and nail polish are not allowed. Nails are required to be kept short and neat.