Machine Design According to maximum normal stress theory, the maximum normal stress in the shaft is (1/2) × √(σ² × 4τ²) √(σ² × 4τ²) (1/2) × [σ + √(σ² × 4τ²)] σ + √(σ² × 4τ²) (1/2) × √(σ² × 4τ²) √(σ² × 4τ²) (1/2) × [σ + √(σ² × 4τ²)] σ + √(σ² × 4τ²) ANSWER DOWNLOAD EXAMIANS APP
Machine Design The anti-friction bearings Have high initial cost Have low starting and low running friction at moderate speeds Can carry both radial and thrust loads All of these Have high initial cost Have low starting and low running friction at moderate speeds Can carry both radial and thrust loads All of these ANSWER DOWNLOAD EXAMIANS APP
Machine Design A screw will be self locking, if Friction angle is more than helix angle Friction angle is equal to helix angle Friction angle is less than helix angle Efficiency of screw is 100% Friction angle is more than helix angle Friction angle is equal to helix angle Friction angle is less than helix angle Efficiency of screw is 100% ANSWER DOWNLOAD EXAMIANS APP
Machine Design Shear stress theory is applicable for Brittle materials Ductile materials Elastic materials All of these Brittle materials Ductile materials Elastic materials All of these ANSWER DOWNLOAD EXAMIANS APP
Machine Design In a belt drive, if the pulley diameter is doubled keeping the tension and belt width constant, then it will be necessary to Increase the key width Increase the key depth Increase the key length Decrease the key length Increase the key width Increase the key depth Increase the key length Decrease the key length ANSWER DOWNLOAD EXAMIANS APP
Machine Design The bending moment ‘M’ and a torque ‘T’ is applied on a solid circular shaft. If the maximum bending stress equals to maximum shear stress developed, then ‘M’ is equal to 2 T 4 T 1 T T/2 2 T 4 T 1 T T/2 ANSWER DOWNLOAD EXAMIANS APP
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