Machine Design Which of the following statement is correct for gears? The pitch circle is always greater than the base circle The addendum is less than dedendum The pitch circle diameter is equal to the product of module and number of teeth All of these The pitch circle is always greater than the base circle The addendum is less than dedendum The pitch circle diameter is equal to the product of module and number of teeth All of these ANSWER DOWNLOAD EXAMIANS APP
Machine Design If the centre distance of the mating gears having involute teeth is increased, then the pressure angle Increases None of these Remains unchanged Decreases Increases None of these Remains unchanged Decreases ANSWER DOWNLOAD EXAMIANS APP
Machine Design Screws used for power transmission should have Very fine threads Strong teeth Low efficiency High efficiency Very fine threads Strong teeth Low efficiency High efficiency 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 In a hydrodynamic lubricated bearing There is a thin film of lubricant between the journal and the bearing There is no lubricant between the journal and the bearing The lubricant is forced between the journal and the bearing, by external pressure There is a thick film of lubricant between the journal and the bearing There is a thin film of lubricant between the journal and the bearing There is no lubricant between the journal and the bearing The lubricant is forced between the journal and the bearing, by external pressure There is a thick film of lubricant between the journal and the bearing ANSWER DOWNLOAD EXAMIANS APP
Machine Design A sliding bearing in which although lubricant is present, the working surfaces __________ contact each other at least part of the time, is called boundary lubricated bearing. Either A or B None of these Partially Fully Either A or B None of these Partially Fully ANSWER DOWNLOAD EXAMIANS APP
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