Machine Design Screws used for power transmission should have Very fine threads Low efficiency Strong teeth High efficiency Very fine threads Low efficiency Strong teeth High efficiency ANSWER DOWNLOAD EXAMIANS APP
Machine Design The temperature at which the new grains are formed in the metal is known as None of these Lower critical temperature Upper critical temperature Recrystallization temperature None of these Lower critical temperature Upper critical temperature Recrystallization temperature ANSWER DOWNLOAD EXAMIANS APP
Machine Design The edges of the plates for cylindrical vessels are usually bevelled to an angle of 80° for Fullering and caulking Ease of manufacture Safety Reducing stress concentration Fullering and caulking Ease of manufacture Safety Reducing stress concentration ANSWER DOWNLOAD EXAMIANS APP
Machine Design Two rigid plates are clamped by means of bolt and nut with an initial force F. After tightening, a separating force P (P < F) is applied to the lower plate, which in turn acts on the nut. The tension in the both after this is F + P F.P P F F + P F.P P F ANSWER DOWNLOAD EXAMIANS APP
Machine Design A flange coupling is used to connect two shafts Whose axes intersect at a small angle Have lateral misalignment Which are not in exact alignment Which are perfectly aligned Whose axes intersect at a small angle Have lateral misalignment Which are not in exact alignment Which are perfectly aligned ANSWER DOWNLOAD EXAMIANS APP
Machine Design The ratio of belt tensions (p1/p2) considering centrifugal force in flat belt is given byWhere m = mass of belt per meter (kg/m)v = belt velocity (m/s)f = coefficient of frictiona = angle of wrap (radians) (P1 - mv²)/ (P2 - mv²) = e–ᶠα P1 / P2 = e–ᶠα P1 / P2 = eᶠα (P1 - mv²)/ (P2 - mv²) = eᶠα (P1 - mv²)/ (P2 - mv²) = e–ᶠα P1 / P2 = e–ᶠα P1 / P2 = eᶠα (P1 - mv²)/ (P2 - mv²) = eᶠα ANSWER DOWNLOAD EXAMIANS APP
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