Machine Design The rivet head used for boiler plate riveting is usually Counter sunk head Snap head Pan Head Conical head Counter sunk head Snap head Pan Head Conical head ANSWER DOWNLOAD EXAMIANS APP
Machine Design A column of length l is fixed at both ends. The equivalent length of the column is 2 l l l/2 l/√2 2 l l l/2 l/√2 ANSWER DOWNLOAD EXAMIANS APP
Machine Design The efficiency of a square threaded screw is maximum if the helix angle is equal to(Where φ = Angle of friction) 45° - φ/2 45° + φ/2 90° - φ 45° - φ 45° - φ/2 45° + φ/2 90° - φ 45° - φ ANSWER DOWNLOAD EXAMIANS APP
Machine Design If T is the actual number of teeth on a helical gear and φ is the helix angle for the teeth, then formative number of teeth is written as T/sec³φ T sec²φ T cosecφ T sec³φ T/sec³φ T sec²φ T cosecφ T sec³φ ANSWER DOWNLOAD EXAMIANS APP
Machine Design In oilness bearings Do not require external supply of lubricant The oil film pressure is generated only by the rotation of the journal The oil film is maintained by supplying oil under pressure Grease required to be applied after some intervals Do not require external supply of lubricant The oil film pressure is generated only by the rotation of the journal The oil film is maintained by supplying oil under pressure Grease required to be applied after some intervals ANSWER DOWNLOAD EXAMIANS APP
Machine Design A flanged pipe joint will be a leak-proof joint, if the circumferential pitch of the bolts is (where d = Diameter of bolt hole) Equal to inside diameter of pipe Greater than 30d Less than 20d Between 20d and 30d Equal to inside diameter of pipe Greater than 30d Less than 20d Between 20d and 30d ANSWER DOWNLOAD EXAMIANS APP
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