Machine Design If T₁ and T₂ are the tensions on the tight and slack sides of the belt respectively, and Tc is the centrifugal tension, then initial tension in the belt is equal to (T₁ + T₂ + Tc)/2 T₁ + T₂ + Tc (T₁ - T₂ + Tc)/2 T₁ - T₂ + Tc (T₁ + T₂ + Tc)/2 T₁ + T₂ + Tc (T₁ - T₂ + Tc)/2 T₁ - T₂ + Tc ANSWER DOWNLOAD EXAMIANS APP
Machine Design When a metal or alloy is cold worked, None of these Its hardness and strength increases It is worked below recrystallization temperature Both (A) and (B) None of these Its hardness and strength increases It is worked below recrystallization temperature Both (A) and (B) ANSWER DOWNLOAD EXAMIANS APP
Machine Design The usual proportion for the width of key is (where d = Diameter of shaft or diameter of hole in the hub) d/8 d/4 d/6 d/2 d/8 d/4 d/6 d/2 ANSWER DOWNLOAD EXAMIANS APP
Machine Design When an open coiled helical compression spring is subjected to an axial compressive load, the maximum shear stress induced in the wire is (where D = Mean diameter of the spring coil, d = Diameter of the spring wire, K = Wahl's stress factor, and W = Axial compressive load on the spring) (8WD/ πd3) × K (WD/ πd3) × K (2WD/ πd3) × K (4WD/ πd3) × K (8WD/ πd3) × K (WD/ πd3) × K (2WD/ πd3) × K (4WD/ πd3) × K ANSWER DOWNLOAD EXAMIANS APP
Machine Design In order to remove internal stresses produced by hardening the steel, the process usually adopted is Normalizing Spheroidizing Annealing Tempering Normalizing Spheroidizing Annealing Tempering ANSWER DOWNLOAD EXAMIANS APP
Machine Design At low temperatures (say 75°C) the notched bar impact value of steel Increases markedly Depends on heat treatment carried out Remain same Decreases markedly Increases markedly Depends on heat treatment carried out Remain same Decreases markedly ANSWER DOWNLOAD EXAMIANS APP
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