Theory of Machine The total number of instantaneous centers for a mechanism consisting of n links are n(n - 1)/2 n n/2 n - 1 n(n - 1)/2 n n/2 n - 1 ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine In a band and block brake, the ratio of tensions on tight side and slack side of the band is (where μ = Coefficient of friction between the blocks and the drum, θ = Semi-angle of each block subtending at the center of drum, and n = Number of blocks) T₁/T₂ = μ. θ. n T₁/T₂ = (μ θ)n T₁/T₂ = [(1 - μ tanθ)/(1 + μ tanθ)]n T₁/T₂ = [(1 + μ tanθ)/(1 - μ tanθ)]n T₁/T₂ = μ. θ. n T₁/T₂ = (μ θ)n T₁/T₂ = [(1 - μ tanθ)/(1 + μ tanθ)]n T₁/T₂ = [(1 + μ tanθ)/(1 - μ tanθ)]n ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The relation l = (2/3).(j + 2) apply only to kinematic chains in which lower pairs are used. This may be used to kinematic chains in which higher pairs are used, but each higher pair may be taken as equivalent to Two lower pairs and two additional links One lower pair and two additional links Two lower pairs and one additional link Any one of these Two lower pairs and two additional links One lower pair and two additional links Two lower pairs and one additional link Any one of these ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine When the speed of the engine fluctuates continuously above and below the mean speed, the governor is said to be Isochronous Hunt Unstable Stable Isochronous Hunt Unstable Stable ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine A spring controlled governor is said to be unstable when the controlling force Increases as the radius of rotation increases Decreases as the radius of rotation increases Remains constant for all radii of rotation Increases as the radius of rotation decreases Increases as the radius of rotation increases Decreases as the radius of rotation increases Remains constant for all radii of rotation Increases as the radius of rotation decreases ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine In a steam engine, the earlier cut-off with a simple slide valve may be obtained by increasing the steam lap and the angle of advance of the eccentric but keeping constant the travel and lead of the valve, this method will Reduce length of effective stroke of piston Cause withdrawing or throttling of steam All of the listed here Reduce maximum opening of port to steam Reduce length of effective stroke of piston Cause withdrawing or throttling of steam All of the listed here Reduce maximum opening of port to steam ANSWER DOWNLOAD EXAMIANS APP
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