Machine Design An elastic bar is fixed at the upper end and loaded at the lower end by a falling weight. The shock load produced can be reduced by Decreasing the modulus of elasticity of the bar Increasing the length of bar All of these Decreasing the cross-sectional area of the bar Decreasing the modulus of elasticity of the bar Increasing the length of bar All of these Decreasing the cross-sectional area of the bar ANSWER DOWNLOAD EXAMIANS APP
Machine Design Which is correct statement? Stress concentration in static loading is Equally serious in both types of materials Very serious in ductile materials and less serious in brittle materials Very serious in brittle materials and less serious in ductile materials Seriousness would depend on other factors Equally serious in both types of materials Very serious in ductile materials and less serious in brittle materials Very serious in brittle materials and less serious in ductile materials Seriousness would depend on other factors ANSWER DOWNLOAD EXAMIANS APP
Machine Design The notch sensitivity q is expressed in terms of fatigue stress concentration factor Kf and theoretical stress concentration factor Kt as (Kt - 1)/ (Kf - 1) (Kf - 1)/ (Kt - 1) (Kt + 1)/ (Kf + 1) (Kf + 1)/ (Kt + 1) (Kt - 1)/ (Kf - 1) (Kf - 1)/ (Kt - 1) (Kt + 1)/ (Kf + 1) (Kf + 1)/ (Kt + 1) ANSWER DOWNLOAD EXAMIANS APP
Machine Design In a flange coupling, the keys are staggered at __________ along the circumference of the shafts in order to divide the weakening effect caused by key ways. 135° 180° 160° 90° 135° 180° 160° 90° ANSWER DOWNLOAD EXAMIANS APP
Machine Design The dedendum circle diameter is equal to (where φ = Pressure angle) Pitch circle diameter × sinφ Pitch circle diameter × cosφ Clearance circle diameter × cosφ Addendum circle diameter × cosφ Pitch circle diameter × sinφ Pitch circle diameter × cosφ Clearance circle diameter × cosφ Addendum circle diameter × cosφ ANSWER DOWNLOAD EXAMIANS APP
Machine Design The permissible stress in the fillet weld is 100 N/mm². The fillet weld has equal leg lengths of 15 mm each. The allowable shearing load on the weldment per cm length of the weld is 15 kN 22.5 kN 7.5 kN 10.6 kN 15 kN 22.5 kN 7.5 kN 10.6 kN ANSWER DOWNLOAD EXAMIANS APP
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