Answer 55

CONFIDENTIAL BEE30103 254 ABD Sdn Bhd is a consultation company to produce electronic circuit devices. As one of the prominent consultation company this company required to provide excellent service to meet customer demand. Table Q5 shows the planning for the new product development project received recently by this company. Table Q5 Activity Actions Time (weeks) Preceding activities A B D 4 3 5 1 AB E F G Product Conception Material Selection Process Conception Production System Design Prototype tests Procurement Tool and machine acquisition Product installation and testing D E,F 5 2 5 H G 6 a. Construct a PERT network diagram for Table Q5. State the early start (ES), late start (LS), early finish (EF) and late finish (LF) in the diagram. [9 marks] b. Find the critical path in the network diagram [1 mark] 13 CONFIDENTIAL CONFIDENTIAL BEE30103 55 Maintenance may be classified into FOUR (4) categories. Describe it in detail and explain the type of maintenance. (6 marks) (a) Give example of corrective maintenance best applied and state the reason. disadvantages of corrective maintenance. (2 marks) (b) Explain the advantages and disadvantages of predictive maintenance. (2 marks)