Machine Design The stress which vary from a minimum value to a maximum value of the same nature (i.e. tensile or compressive) is called Alternating stress Fluctuating stress Yield stress Repeated stress Alternating stress Fluctuating stress Yield stress Repeated stress ANSWER DOWNLOAD EXAMIANS APP
Machine Design The objective of 'crowning' of the flat pulleys of belt drive is to Increase the belt velocity Prevent the belt from running off the pulley Prevent the belt joint from damaging the belt surface Increase the power transmission capacity Increase the belt velocity Prevent the belt from running off the pulley Prevent the belt joint from damaging the belt surface Increase the power transmission capacity 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 = [(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 T₁/T₂ = (μθ)n T₁/T₂ = [(1 - μ tanθ)/ (1 + μ tanθ)]n ANSWER DOWNLOAD EXAMIANS APP
Machine Design Three different weights fall from a certain height under vacuum. They will take Times proportional to weight to reach earth None of these Times inversely proportional to weight to reach earth Same time to reach earth Times proportional to weight to reach earth None of these Times inversely proportional to weight to reach earth Same time to reach earth ANSWER DOWNLOAD EXAMIANS APP
Machine Design The size of a cam depends upon Pitch curve Base circle Pitch circle Prime circle Pitch curve Base circle Pitch circle Prime circle ANSWER DOWNLOAD EXAMIANS APP
Machine Design Oldham coupling is used to connect two shafts Whose axes intersect at a small angle Which have lateral misalignment Which are perfectly aligned Which are not in exact alignment Whose axes intersect at a small angle Which have lateral misalignment Which are perfectly aligned Which are not in exact alignment ANSWER DOWNLOAD EXAMIANS APP
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