Q. According to I.B.R., when the thickness of the boiler shell (t) is less than 8 mm, then the diameter of the rivet hole (d) is obtained by

• (A) Equating tearing resistance of the plate to the shearing resistance of the rivets
• (B) Equating tearing resistance of the plate to the crushing resistance of the rivets
• (C) Equating shearing resistance to the crushing resistance of the rivets
• (D) None of the above