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Q: Ribbed bolts are also known as ................
  • A. Turned bolts
  • B. Fluted bolts
  • C. Unfinished bolts
  • D. High strength bolts
Correct Answer: Option B - Ribbed bolts– These are also called fluted bolts. The head of the bolt is like a rivet head. The threaded and nut are provided on the other end of the shank. From the shank core longitudinal ribs project making the diameter of the shank more than the diameter of the hole. • These bolts have more resistance to vibrations as compared to ordinary bolts. • The permissible stresses for ribbed are same as that for rivets.
B. Ribbed bolts– These are also called fluted bolts. The head of the bolt is like a rivet head. The threaded and nut are provided on the other end of the shank. From the shank core longitudinal ribs project making the diameter of the shank more than the diameter of the hole. • These bolts have more resistance to vibrations as compared to ordinary bolts. • The permissible stresses for ribbed are same as that for rivets.

Explanations:

Ribbed bolts– These are also called fluted bolts. The head of the bolt is like a rivet head. The threaded and nut are provided on the other end of the shank. From the shank core longitudinal ribs project making the diameter of the shank more than the diameter of the hole. • These bolts have more resistance to vibrations as compared to ordinary bolts. • The permissible stresses for ribbed are same as that for rivets.