SOLVED

21) A production line is to be designed for a job with four tasks. The task times are 2.4 minutes, 1.4 minutes, 0.9 minutes, and 1.7 minutes. After line balancing, the largest possible assigned cycle time is ________ minutes, and the smallest possible assigned cycle time is ________ minutes. A) 1.8; 1.4 B) 1.6; 0.9 C) 6.4; 2.4 D) 2.4; 0.9 E) 6.4; 0.9 22) Cycle time is computed as: A) desired output divided by the daily operating time. B) daily operating time divided by the product of desired output and the sum of job times. C) the product of desired output and the sum of job times divided by daily operating time. D) daily operating time divided by the scheduled output. E) 1.00 minus station time. 23) Four hundred and eighty minutes of production time are available per day. Scheduled production is 120 units per day. What is the required cycle time? A) 4 minutes B) 5 minutes C) 6 minutes D) 7 minutes E) 8 minutes 24) A production line is to be designed for a product whose completion requires 21 minutes of work. The factory works 400 minutes per day. Can an assembly line with five workstations make 100 units per day? A) yes, with exactly 100 minutes to spare B) no, but four workstations would be sufficient C) no, it will fall short even with a perfectly balanced line D) yes, but the line’s efficiency is very low E) cannot be determined from the information given 25) Four hundred and eighty minutes of production time are available per day. The schedule calls for the production of 80 units per day. Each unit of the product requires 30 minutes of work. What is the theoretical minimum number of workstations? A) 2 B) 3 C) 4 D) 5 E) 6 26) Which of the following is NOT a heuristic rule for assigning tasks to workstations in a product layout? A) longest tasks first B) in order of most number of following tasks C) median tasks first D) shortest tasks first E) in accordance with positional weight 27) If a layout problem is solved by use of heuristics, this means that: A) there is no other way to solve the problem. B) no computer software is available. C) the problem has only a few alternatives to evaluate. D) no optimum solution exists. E) a satisfactory, but not necessarily optimal, solution is acceptable. 28) Which of the following is a common heuristic for assembly line balancing? A) first come, first served B) least preceding tasks C) earliest due date first D) ranked positional weight E) most preceding tasks 29) An assembly line consists of 21 tasks grouped into 5 workstations. The sum of the 21 task times is 85 minutes. The largest assigned cycle time is 20 minutes. What is the efficiency of this line? A) 4.2 percent B) 17 percent C) 85 percent D) 100 percent E) 21 percent 30) An assembly line consists of 158 tasks grouped into 32 workstations. The sum of all task times is 105 minutes. The largest assigned cycle time is 4 minutes. What is the efficiency of this line? A) 8 percent B) 21 percent C) 82 percent D) 100 percent E) 81 percent 31) A(n) ________ line is a machine-paced product-oriented facility for building components. 32) ________ is the maximum time that the product is allowed at each workstation.