Theory of Machine For an involute gear, the ratio of base circle radius and pitch circle radius is equal to sinφ cosecφ cosφ secφ sinφ cosecφ cosφ secφ ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine Open pairs are those which have Surface contact between the two elements when in motion Point or line contact between the two elements when in motion Two elements that permit relative motion Elements of pairs not held together mechanically Surface contact between the two elements when in motion Point or line contact between the two elements when in motion Two elements that permit relative motion Elements of pairs not held together mechanically ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The Grubler's criterion for determining the degrees of freedom (n) of a mechanism having plane motion is (where l = Number of links, and j = Number of binary joints) n = (l -1) - j n = 3(l - 1) - 2j n = 2(l - 1) - 2j n = 4(l - 1) - 3j n = (l -1) - j n = 3(l - 1) - 2j n = 2(l - 1) - 2j n = 4(l - 1) - 3j ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine Governor is used in automobile to Maximize the fuel economy Limit the vehicle speed Decrease the variation of speed Maintain constant engine speed Maximize the fuel economy Limit the vehicle speed Decrease the variation of speed Maintain constant engine speed ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine There are six gears A, B, C, D, E and F in a compound train. The numbers of teeth in the gears are 20, 60, 30, 80, 25 and 75 respectively. The ratio of angular speeds of the driven (F) to the driver (A) of the drive is 4/15 1/24 1/8 12 4/15 1/24 1/8 12 ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine In a drag link quick return mechanism, the shortest link is always fixed. The sum of the shortest and longest link is Equal to sum of other two Less than sum of other two There is no such relationship Greater than sum of other two Equal to sum of other two Less than sum of other two There is no such relationship Greater than sum of other two ANSWER DOWNLOAD EXAMIANS APP
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