Machine Design Shaft coupling is used in machinery to Reduce the transmission of shock loads All of these Introduce protection against over loads Introduce mechanical flexibility Reduce the transmission of shock loads All of these Introduce protection against over loads Introduce mechanical flexibility ANSWER DOWNLOAD EXAMIANS APP
Machine Design The velocity factor for ordinary cut gears operating at velocities up to 12.5 m/s is equal to 6/(6 + v) 0.75/(0.75 + √v) 3/(3 + v) 4.5/(4.5 + v) 6/(6 + v) 0.75/(0.75 + √v) 3/(3 + v) 4.5/(4.5 + v) ANSWER DOWNLOAD EXAMIANS APP
Machine Design At low temperatures (say 75°C) the notched bar impact value of steel Increases markedly Depends on heat treatment carried out Remain same Decreases markedly Increases markedly Depends on heat treatment carried out Remain same Decreases markedly ANSWER DOWNLOAD EXAMIANS APP
Machine Design When spring index increases, the value of Wahl's stress factor Increases linearly Remains same Increases exponentially Decreases linearly Increases linearly Remains same Increases exponentially Decreases linearly ANSWER DOWNLOAD EXAMIANS APP
Machine Design The material generally used for aircraft components is Aluminium High speed steel Mild steel Stainless steel Aluminium High speed steel Mild steel Stainless steel 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 3.5 3.0 2.8 2.5 3.5 3.0 2.8 2.5 ANSWER DOWNLOAD EXAMIANS APP
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