Q Q1. True or False Questions (put “T” or “F” below for each questions, each 5 points, total 50 points) 1.The total pressure drop for the entire tool (parts and runners) should be about 90% of the machine capacity at maximum. 2.___ The smaller the cross sectional area of the screw, the larger the intensification ratio and the higher the plastic melt pressure at the tip of the screw. 3. A flow leader is used to induce subtle changes to the part geometry so that a balanced flow can be achieved within the part. 4.A larger gate promotes frictional heating, but it lengthens the freezing time of gate, thus allowing the pack time to be longer. 5.It would be better to place gates close to thin features and induce the polymer melt flow from thin sections to thick sections
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