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 Lewis form factor for 14½° composite and full depth involute system is (where T = Number of teeth) 0.124 - (0.684/T) 0.175 - (0.841/T) 0.154 - (0.912/T) None of these 0.124 - (0.684/T) 0.175 - (0.841/T) 0.154 - (0.912/T) None of these ANSWER DOWNLOAD EXAMIANS APP
Machine Design For low and moderate speed engines, the cam follower should move with Uniform acceleration and retardation Cycloidal motion Uniform velocity Simple harmonic motion Uniform acceleration and retardation Cycloidal motion Uniform velocity Simple harmonic motion ANSWER DOWNLOAD EXAMIANS APP
Machine Design Three different weights fall from a certain height under vacuum. They will take None of these Times proportional to weight to reach earth Times inversely proportional to weight to reach earth Same time to reach earth None of these Times proportional to weight to reach earth Times inversely proportional to weight to reach earth Same time to reach earth ANSWER DOWNLOAD EXAMIANS APP
Machine Design The shock resistance of steel is increased by adding Nickel Nickel and chromium Chromium Cobalt and molybdenum Nickel Nickel and chromium Chromium Cobalt and molybdenum ANSWER DOWNLOAD EXAMIANS APP
Machine Design In case of thick cylinders, the tangential stress across the thickness of cylinder is Maximum at the outer surface and zero at the inner surface Maximum at the outer surface and minimum at the inner surface Maximum at the inner surface and zero at the outer surface Maximum at the inner surface and minimum at the outer surface Maximum at the outer surface and zero at the inner surface Maximum at the outer surface and minimum at the inner surface Maximum at the inner surface and zero at the outer surface Maximum at the inner surface and minimum at the outer surface ANSWER DOWNLOAD EXAMIANS APP
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