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 A flange coupling is used to connect two shafts Whose axes intersect at a small angle Which are perfectly aligned Which are not in exact alignment Have lateral misalignment Whose axes intersect at a small angle Which are perfectly aligned Which are not in exact alignment Have lateral misalignment ANSWER DOWNLOAD EXAMIANS APP
Machine Design The gears are termed as medium velocity gears, if their peripheral velocity is 1-3 m/s 30-50 m/s 3-15 m/s 15-30 m/s 1-3 m/s 30-50 m/s 3-15 m/s 15-30 m/s ANSWER DOWNLOAD EXAMIANS APP
Machine Design When a hole of diameter ‘d’ is punched in a metal of thickness 't', then the force required to punch a hole is equal to (where τu = Ultimate shear strength of the material of the plate) π/4 × d².τu π/4 × d² × tτu t.τu πd.t.τu π/4 × d².τu π/4 × d² × tτu t.τu πd.t.τu ANSWER DOWNLOAD EXAMIANS APP
Machine Design A crankshaft is a __________ shaft. Machine frame Machine Transmission None of these Machine frame Machine Transmission None of these ANSWER DOWNLOAD EXAMIANS APP
Machine Design If b denotes the face width and L denotes the cone distance for a bevel gear, then the bevel factor is written as 1 - 2 b.L 1 - (b/L) b/2L b/L 1 - 2 b.L 1 - (b/L) b/2L b/L ANSWER DOWNLOAD EXAMIANS APP
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