Machine Design According to maximum normal stress theory, the maximum normal stress in the shaft is σ + √(σ² × 4τ²) (1/2) × [σ + √(σ² × 4τ²)] √(σ² × 4τ²) (1/2) × √(σ² × 4τ²) σ + √(σ² × 4τ²) (1/2) × [σ + √(σ² × 4τ²)] √(σ² × 4τ²) (1/2) × √(σ² × 4τ²) ANSWER DOWNLOAD EXAMIANS APP
Machine Design The efficiency of a square threaded screw is maximum if the helix angle is equal to(Where φ = Angle of friction) 45° - φ/2 45° - φ 90° - φ 45° + φ/2 45° - φ/2 45° - φ 90° - φ 45° + φ/2 ANSWER DOWNLOAD EXAMIANS APP
Machine Design When the belt is transmitting maximum power, the belt speed should be(Where, m = mass of belt per meter (kg/m) and Pmax = maximum permissible tension in belt (N)) √(Pmax / m) √(Pmax / 3m) √(3m /Pmax) √(Pmax / 2m) √(Pmax / m) √(Pmax / 3m) √(3m /Pmax) √(Pmax / 2m) ANSWER DOWNLOAD EXAMIANS APP
Machine Design Which of the following screw thread is adopted for power transmission in either direction? Buttress threads Square threads Acme threads Multiple threads Buttress threads Square threads Acme threads Multiple threads ANSWER DOWNLOAD EXAMIANS APP
Machine Design Guest's theory is used for Brittle materials Plastic materials Ductile materials Elastic materials Brittle materials Plastic materials Ductile materials Elastic materials ANSWER DOWNLOAD EXAMIANS APP
Machine Design Spring index is Ratio of coil diameter to wire diameter Indication of quality of spring Load required to produce unit deflection Its capability of storing energy Ratio of coil diameter to wire diameter Indication of quality of spring Load required to produce unit deflection Its capability of storing energy ANSWER DOWNLOAD EXAMIANS APP
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