Machine Design The cross-section of the arm of a bell crank lever is I-section Rectangular Elliptical Any one of these I-section Rectangular Elliptical Any one of these ANSWER DOWNLOAD EXAMIANS APP
Machine Design When two helical springs of equal lengths are arranged to form a cluster spring, then Only A is correct Load taken by each spring will be half the total load Both A and B is correct Shear stress in each spring will be equal Only A is correct Load taken by each spring will be half the total load Both A and B is correct Shear stress in each spring will be equal ANSWER DOWNLOAD EXAMIANS APP
Machine Design In a band and block brake, the ratio of tensions on the tight and slack sides of band is given by (where μ = Coefficient of friction between the blocks and the drum, θ = Semi-angle of each block subtending at the centre of drum, and n = Number of blocks) T₁/T₂ = (μθ)n T₁/T₂ = μθ × n T₁/T₂ = [(1 - μ tanθ)/ (1 + μ tanθ)]n T₁/T₂ = [(1 + μ tanθ)/ (1 - μ tanθ)]n T₁/T₂ = (μθ)n T₁/T₂ = μθ × n T₁/T₂ = [(1 - μ tanθ)/ (1 + μ tanθ)]n T₁/T₂ = [(1 + μ tanθ)/ (1 - μ tanθ)]n ANSWER DOWNLOAD EXAMIANS APP
Machine Design If p = bearing pressure on projected bearing area, z = absolute viscosity of lubricant, and N = speed of journal, then the bearing characteristic number is given by N/Zp ZN/p p/ZN Z/pN N/Zp ZN/p p/ZN Z/pN ANSWER DOWNLOAD EXAMIANS APP
Machine Design An open belt drive is used when Shafts are arranged at right angles and rotate in one definite direction Shafts are arranged parallel and rotate in the same directions Shafts are arranged parallel and rotate in the opposite directions Driven shaft is to be started or stopped whenever desired without interfering with the driving shaft Shafts are arranged at right angles and rotate in one definite direction Shafts are arranged parallel and rotate in the same directions Shafts are arranged parallel and rotate in the opposite directions Driven shaft is to be started or stopped whenever desired without interfering with the driving shaft ANSWER DOWNLOAD EXAMIANS APP
Machine Design For standard coarse threads of nut, the threads will be as strong in failure by shear as the bolt in tension, if the height of nut (h) is approximately 0.6 times 0.7 times 0.4 times 0.8 times 0.6 times 0.7 times 0.4 times 0.8 times ANSWER DOWNLOAD EXAMIANS APP
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