QUESTION 40 For an assembly line shown in table 10-6, the idle time of station SSA1 is: (Ch-10) 0.011 minutes per hour 0.021 minutes per hour 0.031 minutes per hour 0.041 minutes per hour 234 CHAPTER 10 TIME STANDARD Table 10-6 Initial Assembly Line Balance. NUMBER ROUNDED AVERAGE PERCENT STATIONS OFF TIME LOADED HOURS PER UNIT PIECES PERU TASK .153 SSSA1 SSA1 SSAZ 180 180 .146 130 1.77 1.68 1.50 2.06 1.79 3.20 SA1 119 155 180 .306 291 260 356 310 .555 .250 415 250 .501 3.494 AZ .139 00557 .00557 00557 00834 00557 01112 .00557 00834 .00557 .00834 .06950 1.44 wwNNW .125 .138 2.40 1.44 SA3 2.90 Total Rvalue 168 minutes - line rate of Takt time *Number of station time standard + R value. This plant wants to make 2.000 units per day at 70% .00557 .00417 .00140 500,000 700 @ $ 15.00 = $10,500.00 balanced cost by itself cost savings hours/unit units/year hours per year per hour per year savings This is called the cost of balancing. In this case it is too high. Subassemblies that can be taken off the line must be subassembled. For exam 1. Poorly loaded. The less percent loaded, the more desirable to be subassembic ple, a 60% load on the assembly line balance would indicate 40% lost time. If wel job off the assembly line (not tied to the other operators), we could save 40% 2. Small parts easily stacked and stored. 3. Easily moved. The cost of transportati me. If we take this o save 40% of the cost un bul