(a) A pump manufacturing company has to assemble bearing on the shaft in large quantities. The time study shows 184 seconds as an observed time for the assembly operation. Determine the standard time with personal allowance as 8% and half of the personal allowance as fatigue allowance. Level factor for this time study is 0.9.
(b) Differentiate mass and job order production systems with respect to machines and time of production. (2x1 = 2 marks)
2. Identify the number of nodes, activities and critical path of the following network. (5 marks)