Assignment 2Administration,Supervision,andTraining(cont)Textbook Assignment: Engineman 1&C, NAVEDTRA 10543-E1, Pages 2-12 through 2-39Learning Objective: Recognize thepurpose and the importance of Trendand Spectrographic Analyses.Question 2-1 is to be judged True orFalse.2-1.Trend and spectrographic analyses are usedto spot impending engine malfunctions.2-2.Which of the following is a means used todetermine if an engine needs to beoverhauled?1.The current operating data is comparedwith the previous operating data2.The operating data of the engine iscompared with that of another engineof the same type3.The temperature of the lube oilentering the oil cooler is compared tothat of the one leaving the cooler4.The last two operating data sheets arecompared2-3.How are engine performance data used as atool?1.They are used to circle the readingsthat are out of limits2.They are used to make graphs3.They are used to bring the out oflimit readings to the attention of theengineer officer4.They are used to discuss the operatingdata with all operators2-4.In order to produce meaningful graphs fora generator, what load percentage shouldthe data indicate?1.25%2.50%3.80%4.100%2-5.2-6.2-7.2-8.2-9.2-10.Questions 2-5 and 2-6 are to be judgedTrue or False.In most cases, a set of readings shouldbe plotted every 200 hours of engineoperation.Engine performance data should beobtained within 5 minutes after start up.When preparing a graph, at what operatinghour do you place your first point forlube oil consumption?1.1002.2003.3004.400Which of the following information can beobtained from the curves on graphs?1.The condition of the engine2.What needs to be done to the engine3.The life expectancy of vital parts4.All of the above.What can you determine from aspectrometric analysis of engine oil?1.The extent of accelerated wear of aninternal combustion engine2.The amount of oil the engine uses permonth3.The rate of flow of the cooling waterto the lube oil cooler4.The amount of oil pressure producedby the lube oil pumpQuestions 2-10 and 2-11 are to be judgedTrue or False.After major overhaul, ships should,maintain accurate records of operatinghours, including oil changes, andsamplings in order to provide the testingfacility with the information indicatedin the sampling kit.9
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