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 T₁ - T₂ + Tc (T₁ + T₂ + Tc)/2 (T₁ - T₂ + Tc)/2 T₁ + T₂ + Tc T₁ - T₂ + Tc (T₁ + T₂ + Tc)/2 (T₁ - T₂ + Tc)/2 ANSWER DOWNLOAD EXAMIANS APP
Machine Design The modulus of elasticity for mild steel is approximately equal to 100 kN/mm² 210 kN/mm² 80 kN/mm² 110 kN/mm² 100 kN/mm² 210 kN/mm² 80 kN/mm² 110 kN/mm² ANSWER DOWNLOAD EXAMIANS APP
Machine Design Screws used for power transmission should have Low efficiency High efficiency Very fine threads Strong teeth Low efficiency High efficiency Very fine threads Strong teeth ANSWER DOWNLOAD EXAMIANS APP
Machine Design When the belt speed increases Power transmitted decreases Power transmitted increases to a maximum value and then decreases Power transmitted increases Power transmitted remains the same Power transmitted decreases Power transmitted increases to a maximum value and then decreases Power transmitted increases Power transmitted remains the same ANSWER DOWNLOAD EXAMIANS APP
Machine Design In order to avoid tearing of the plate at an edge, the distance from the centre line of the rivet hole to the nearest edge of the plate should be equal to (where d = Diameter of rivet hole) 1.5 d 1 d 2 d 2.5 d 1.5 d 1 d 2 d 2.5 d 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 / 2m) √(Pmax / 3m) √(Pmax / m) √(3m /Pmax) √(Pmax / 2m) √(Pmax / 3m) √(Pmax / m) √(3m /Pmax) ANSWER DOWNLOAD EXAMIANS APP
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