Machine Design When a helical compression spring is cut into halves, the stiffness of the resulting spring will be One-fourth Same Double One-half One-fourth Same Double One-half 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 = [(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 T₁/T₂ = (μθ)n ANSWER DOWNLOAD EXAMIANS APP
Machine Design The creep in the belt is due to Stresses beyond elastic limit of belt material Effect of temperature on belt Unequal extensions in the belt due to tight and slack side tensions Material of belt Stresses beyond elastic limit of belt material Effect of temperature on belt Unequal extensions in the belt due to tight and slack side tensions Material of belt ANSWER DOWNLOAD EXAMIANS APP
Machine Design A screw is said to be over hauling screw, if the Friction angle is more than helix angle Efficiency of screw is 100% Friction angle is equal to helix angle Friction angle is less than helix angle Friction angle is more than helix angle Efficiency of screw is 100% Friction angle is equal to helix angle Friction angle is less than helix angle ANSWER DOWNLOAD EXAMIANS APP
Machine Design The maximum stress due to stress concentration in a bar having circular transverse hole, as compared to its static stress without hole will be 4 times more 3 times more 2 times more Same in both cases 4 times more 3 times more 2 times more Same in both cases ANSWER DOWNLOAD EXAMIANS APP
Machine Design In testing a material for endurance strength, it is subjected to Impact load Dynamic load Completely reversed load Static load Impact load Dynamic load Completely reversed load Static load ANSWER DOWNLOAD EXAMIANS APP
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