Machine Design The endurance limit for a mirror polished material will be __________ as compared to unpolished material. Same Less More None of these Same Less More None of these ANSWER DOWNLOAD EXAMIANS APP
Machine Design When a hole of diameter ‘d’ is punched in a metal of thickness 't', then the force required to punch a hole is equal to (where τu = Ultimate shear strength of the material of the plate) πd.t.τu t.τu π/4 × d² × tτu π/4 × d².τu πd.t.τu t.τu π/4 × d² × tτu π/4 × d².τu ANSWER DOWNLOAD EXAMIANS APP
Machine Design When the fulcrum is in between the load and effort, the lever is said to be of Second type First type Any one of these Third type Second type First type Any one of these Third type ANSWER DOWNLOAD EXAMIANS APP
Machine Design Which of the following screw thread is adopted for power transmission in either direction? Acme threads Multiple threads Buttress threads Square threads Acme threads Multiple threads Buttress threads Square threads ANSWER DOWNLOAD EXAMIANS APP
Machine Design The value of stress concentration factor depends upon Geometry of the part Material and geometry of the part Material of the part None of these Geometry of the part Material and geometry of the part Material of the part None of these ANSWER DOWNLOAD EXAMIANS APP
Machine Design A shaft is subjected to a maximum bending stress of 80 N/mm² and maximum shearing stress equal to 30 N/mm² at a particular section. If the yield point in tension of the material is 280 N/mm² and the maximum shear stress theory of failure is used, then the factor of safety obtained will be 2.5 3.5 2.8 3 2.5 3.5 2.8 3 ANSWER DOWNLOAD EXAMIANS APP
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