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PL to torsional 13!1? 10. The rivet head used for the boiler plate riveting is usually...


PL to torsional 13!1? 10. The rivet head used for the boiler plate riveting is usually A. Snap head B. pan head C. counter su
PL to torsional 13!1? 10. The rivet head used for the boiler plate riveting is usually A. Snap head B. pan head C. counter sunk head D. conical head Answer: 11. According to UnWin's formula, the relation between diameter of rivet hole (d) and thickness of plate (1) is given by (units in mm) A. der B. d=1.6V C. d = 21 D. d=61 Answer: 12. A line joining the centres of rivets and parallel to the edge of the plate is known as A. back pitch B. marginal pitch C. gauge line D. pitch line Answer: 13. The centre to centre distance between two consecutive rivets in a row, is called. A. margin B. pitch C. back pitch D. diagonal pitch Answer: 14. A double strap butt joint (with equal straps) is A. always in single shear B. always in double shear C. either in single shear or double shear D. any one of these Answer: 15. The longitudinal joint in boilers is used to get the required A. length of boiler B. diameter of boiler C. length and diameter of boiler D. efficiency of boiler Answer: Page 4
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1) Mostly in manufacturing and construction industries uses a snap head rivets and Snap head rivets are used mainly where permanent joint and strong joint is required and it's also uses where different thickness of plates to be joined.  so that in boiler plate riveting we are using SNAP HEAD RIVETS.

2) Mainly unwins formula is used for determining the size of the rivet. The relationship between size of the rivet hole to plate thickness is"[d=6√t]" where d=diameter of rivet hole and t= thickness of plate

3)

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