Machine Design Machine screws are Used to prevent relative motion between two parts Similar to small size tap bolts except that a greater variety of shapes of heads are available Slotted for a screw driver and generally used with a nut Similar to stud Used to prevent relative motion between two parts Similar to small size tap bolts except that a greater variety of shapes of heads are available Slotted for a screw driver and generally used with a nut Similar to stud ANSWER DOWNLOAD EXAMIANS APP
Machine Design Crowning on pulley helps To keep the belt in centre on a pulley while it is in motion In increasing the slip of the belt In decreasing the slip of the belt To increase pulley life To keep the belt in centre on a pulley while it is in motion In increasing the slip of the belt In decreasing the slip of the belt To increase pulley life 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 In helical bevel gearing, the axes of shafts are __________ and the teeth are curved. Intersecting and non-parallel Non-intersecting and non-parallel Intersecting None of these Intersecting and non-parallel Non-intersecting and non-parallel Intersecting None of these ANSWER DOWNLOAD EXAMIANS APP
Machine Design When two non-parallel or intersecting but coplanar shafts are connected by gears, the arrangement is known as, Helical gearing None of these Bevel gearing Worm gearing Helical gearing None of these Bevel gearing Worm gearing ANSWER DOWNLOAD EXAMIANS APP
Machine Design A screw is said to be over hauling screw, if its efficiency is Equal to 50% Less than 50% None of these More than 50% Equal to 50% Less than 50% None of these More than 50% ANSWER DOWNLOAD EXAMIANS APP
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