This maintenance practice is based on the idea of "run till it breaks". That means corrective actions are generally performed when the item fails (i.e. it cannot perform its intended function anymore). O Reliability centred maintenance Preventative maintenance O Predictive (or condition based) maintenance O Reactive maintenance Total productive maintenance

(a) A very important component of a system has a mean time between failures of 100 hr and a mean time to repair of 10 hr. Determine the inherent availability of the system.           (b) If the equipment in Q7 (c i) above is required to meet an inherent availability requirement of 0.985 and a mean time between failures of 100 hr. Calculate the permissible mean time to repair and if the system as a mean of the time intervals between corrective maintenance actions of 900 hrs and the sum of the mean corrective maintenance time intervals including supply downtime and administrative down time of 10 hrs Determine the operational availability of the system

Which of the followings is NOT a reason of sporadic waste in the production line. human error broken machine power failure incapable process

True, False or Uncertain. Explain your answer. Own wage elasticity JELLlincrease if product demand elasticity n? is high. In short run, when there is an increase in wage rate, each firm will hire less labor and so the industry labor demand is simply the horizontal summation of firm's labor demand. а. b. Labor demand is represented by the marginal revenue produce schedule (MRP) when we have competitive product market while it will be represented by the value of marginal product schedule (VMP) when we have a product market monopolist. When elasticity of substitution, SLK, increase that means the L and K are less substitutable, and the isoquant will be L-shaped. Minimum wage imposed by the government is always bad for the economy because it increase unemployment and deadweight loss. с. d. e. 3.

A wind turbine consists primarily of a generator and gearbox.d) Describe some of the techniques that might be used in order to develop a predictive maintenance system for a wind turbine. Consider some of the sensing techniques that might be used and what parameters might be measured in order to detect component degradation. e)  What are the main benefits of implementing predictive maintenance when compared with other maintenance techniques?

3) a) A control system consists of an electrical power supply, a standby battery supply which is activated by a sensor and switch if the main supply fails, a hydraulic power pack, a controller, and two actuators acting in parallel (i.e. control exists if either or both actuators are functioning). i) Draw the system reliability block diagram. ii) Draw the fault tree appropriate to the top event 'total loss of actuator control'.

Briefly define quality control and explain its purpose.

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4. Circle True or False for each statement: False a. Methods used to correct Technical Contradictions can also be used for Physical Contradictions. b. Physical Contradictions usually deal with opposite effects. a. True or b. True or False False C. One of the main advantages of TRIZ is that it draws solutions from many different disciplines. d. TRIZ is the only method that shows the trend of future products. C. True or d. True or False

What are the factors that the organization must consider when adopting the maintenance strategy?