Q. Which of the following statement is wrong?

• (A) The pitch of rivets is obtained by equating the tearing resistance of the plate to the shearing resistance of the rivets
• (B) The pitch of rivets should not be less than 2d, where d is the diameter of rivet hole
• (C) The maximum value of the pitch of rivets for a longitudinal joint of a boiler, as per I.B.R., is given by Pmax = C.t + 41.28 mm
• (D) According to I.B.R., the thickness of butt strap shall not be less than 5 mm