## Question

###### Question I: (10 marks)diesel engine is very complex system and when it fails is mnoSt olten due t0 some of many components; S0 when it is tixed, its hazard rate the same as what just before failure Assume that the hazard rate of the engine ish(o)= 120 400Q 40uu(a) What is the (ailure distribution of the system and its parameters? (3 marks)(b) If there is no preventive maintenance of the engine what is the probability that the first failure will be between 3000 and 5000 hours? (3 marks)

Question I: (10 marks) diesel engine is very complex system and when it fails is mnoSt olten due t0 some of many components; S0 when it is tixed, its hazard rate the same as what just before failure Assume that the hazard rate of the engine is h(o)= 120 400Q 40uu (a) What is the (ailure distribution of the system and its parameters? (3 marks) (b) If there is no preventive maintenance of the engine what is the probability that the first failure will be between 3000 and 5000 hours? (3 marks)

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