Machine Design For longitudinal joint in boilers, the type of joint used is Butt joint with double cover plate Butt joint with single cover plate Lap joint with one ring overlapping the other Any one of the above Butt joint with double cover plate Butt joint with single cover plate Lap joint with one ring overlapping the other Any one of the above ANSWER DOWNLOAD EXAMIANS APP
Machine Design The initial tension (in newtons) in a bolt used for making a fluid tight joint like steam engine cover joints, is calculated by the relation (where d = Nominal diameter of bolt in mm) 2080 d 1420 d 1680 d 2840 d 2080 d 1420 d 1680 d 2840 d ANSWER DOWNLOAD EXAMIANS APP
Machine Design A double fillet welded joint with parallel fillet weld of length 'l' and leg 's' is subjected to a tensile force 'P'. Assuming uniform stress distribution, the shear stress in the weld is given by P/√2.s.l √2P/s.l 2P/s.l P/2.s.l P/√2.s.l √2P/s.l 2P/s.l P/2.s.l ANSWER DOWNLOAD EXAMIANS APP
Machine Design A special case of ductility which permits materials to be rolled or hammered into thin sheets, is called Ductility Plasticity Malleability Elasticity Ductility Plasticity Malleability Elasticity ANSWER DOWNLOAD EXAMIANS APP
Machine Design Tearing resistance required to tear off the plate per pitch length is (where p = Pitch of rivets, d = Dia. of rivet hole, and σt = Permissible tensile stress for plate material) p.t.σt p.d.σt (p - d) t.σt p.t.σt p.d.σt (p - d) t.σt ANSWER DOWNLOAD EXAMIANS APP
Machine Design If threads on a bolt are left hand, threads on nut will be Left hand with same pitch Could be left or right hand Right hand with same pitch Right hand with fine pitch Left hand with same pitch Could be left or right hand Right hand with same pitch Right hand with fine pitch ANSWER DOWNLOAD EXAMIANS APP
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