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 - d) t.σt p.d.σt p.t.σt (p - d) t.σt p.d.σt p.t.σt ANSWER DOWNLOAD EXAMIANS APP
Machine Design The spring mostly used in gramophones is Conical spring Helical spring Volute spring Flat spiral spring Conical spring Helical spring Volute spring Flat spiral spring ANSWER DOWNLOAD EXAMIANS APP
Machine Design In oilness bearings The oil film pressure is generated only by the rotation of the journal Do not require external supply of lubricant The oil film is maintained by supplying oil under pressure Grease required to be applied after some intervals The oil film pressure is generated only by the rotation of the journal Do not require external supply of lubricant The oil film is maintained by supplying oil under pressure Grease required to be applied after some intervals ANSWER DOWNLOAD EXAMIANS APP
Machine Design When the bearing is subjected to large fluctuations of load and heavy impacts, the bearing characteristic number should be _________ the bearing modulus. 15 times 10 times 20 times 5 times 15 times 10 times 20 times 5 times ANSWER DOWNLOAD EXAMIANS APP
Machine Design The ratio of belt tensions (p1/p2) considering centrifugal force in flat belt is given byWhere m = mass of belt per meter (kg/m)v = belt velocity (m/s)f = coefficient of frictiona = angle of wrap (radians) P1 / P2 = eᶠα P1 / P2 = e–ᶠα (P1 - mv²)/ (P2 - mv²) = eᶠα (P1 - mv²)/ (P2 - mv²) = e–ᶠα P1 / P2 = eᶠα P1 / P2 = e–ᶠα (P1 - mv²)/ (P2 - mv²) = eᶠα (P1 - mv²)/ (P2 - mv²) = e–ᶠα ANSWER DOWNLOAD EXAMIANS APP
Machine Design A shaft coupling should Hold the shafts in perfect alignment Transmit full power of the shaft Be easy to connect or disconnect All of these Hold the shafts in perfect alignment Transmit full power of the shaft Be easy to connect or disconnect All of these ANSWER DOWNLOAD EXAMIANS APP
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