Machine Design According to maximum normal stress theory, the maximum normal stress in the shaft is (1/2) × √(σ² × 4τ²) √(σ² × 4τ²) σ + √(σ² × 4τ²) (1/2) × [σ + √(σ² × 4τ²)] (1/2) × √(σ² × 4τ²) √(σ² × 4τ²) σ + √(σ² × 4τ²) (1/2) × [σ + √(σ² × 4τ²)] 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 2.8 3.5 2.5 3 2.8 3.5 ANSWER DOWNLOAD EXAMIANS APP
Machine Design Residual stress in materials Becomes zero when external load is removed Is independent of external loads Acts when external load is applied Is always harmful Becomes zero when external load is removed Is independent of external loads Acts when external load is applied Is always harmful ANSWER DOWNLOAD EXAMIANS APP
Machine Design A compound belt drive is used when Shafts are arranged parallel and rotate in the opposite directions Shafts are arranged parallel and rotate in the same directions Shafts are arranged at right angles and rotate in one definite direction None of these Shafts are arranged parallel and rotate in the opposite directions Shafts are arranged parallel and rotate in the same directions Shafts are arranged at right angles and rotate in one definite direction None of these ANSWER DOWNLOAD EXAMIANS APP
Machine Design Coaxing is the procedure of increasing Metal hardness by surface treatment Fatigue limit by over-stressing the metal by successively increasing loadings Metal resistance to corrosion by coating Metal strength by cycling Metal hardness by surface treatment Fatigue limit by over-stressing the metal by successively increasing loadings Metal resistance to corrosion by coating Metal strength by cycling ANSWER DOWNLOAD EXAMIANS APP
Machine Design In the assembly of pulley, key and shaft Key is made the strongest Pulley is made the weakest Key is made the weakest All the three are designed for equal strength Key is made the strongest Pulley is made the weakest Key is made the weakest All the three are designed for equal strength ANSWER DOWNLOAD EXAMIANS APP
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