Machine Design The efficiency of a square threaded screw is maximum if the helix angle is equal to(Where φ = Angle of friction) 90° - φ 45° - φ/2 45° - φ 45° + φ/2 90° - φ 45° - φ/2 45° - φ 45° + φ/2 ANSWER DOWNLOAD EXAMIANS APP
Machine Design For applications involving high stresses in one direction only the following type of thread would be best suited Acme thread Square thread Buttress thread ISO metric thread Acme thread Square thread Buttress thread ISO metric thread ANSWER DOWNLOAD EXAMIANS APP
Machine Design The yield point in static loading is __________ as compared to fatigue loading. Lower Higher Same None of these Lower Higher Same None of these ANSWER DOWNLOAD EXAMIANS APP
Machine Design Taper on the cotter and slot is provided On none of the sides May be provided anywhere On both the sides On one side only On none of the sides May be provided anywhere On both the sides On one side only ANSWER DOWNLOAD EXAMIANS APP
Machine Design Two closely coiled helical springs with stiffness k₁ and k₂ respectively are connected in series. The stiffness of an equivalent spring is given by (k₁ k₂)/ (k₁ + k₂) (k₁ + k₂)/ (k₁ k₂) (k₁ - k₂)/ (k₁ k₂) (k₁ - k₂)/ (k₁ + k₂) (k₁ k₂)/ (k₁ + k₂) (k₁ + k₂)/ (k₁ k₂) (k₁ - k₂)/ (k₁ k₂) (k₁ - k₂)/ (k₁ + k₂) ANSWER DOWNLOAD EXAMIANS APP
Machine Design In the assembly of pulley, key and shaft 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 Key is made the strongest Pulley is made the weakest ANSWER DOWNLOAD EXAMIANS APP
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