examI_f2005_soln - Name MAE 4800 Exam I Open notes Open...

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Name:_____________________________________ MAE 4800 Exam I October 25, 2005 Open notes Open book Closed neighbors Open mind Notes: Start exam when instructed – you will be given 75 minutes to complete the exam Write name at top of each page and any additional pages Read each problem carefully – if you still do not understand, ask Clearly state all assumptions Clearly show all your work, commenting on what you are doing – keep in mind that your exam communicates to those who are grading what you know To maximize points, plug in numbers at the end – solve algebraically first Reference table you are using for properties Good luck! MAE 4800, Fall 2005 10/25/05
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Name:_____________________________________ Problem 1 (50 points) You have just been hired by Tiger motors where they have just developed a new engine cooling system. The cooling system is supposed to maintain the engine temperature below 525 o C at all times. You are asked to validate that the cooling system does indeed keep the engine temperature below 525 o C. You decide to instrument the engine with a type ‘k’ thermocouple and run the leads to a DVM that is maintained at a constant temperature of 20 o C. Since the experiment will take all day, you request a technician to watch the DVM readout and let you know if the engine temperature exceeds the 525 o C temperature limit. DVM Thermocouple Technician Part 1 (25 points) – The DVM does not directly provide a temperature value. How should the DVM be configured (what kind of a measurement needs to be taken of a thermocouple – think units)? Based on the type of measurement the DVM is configured for, what DVM reading will indicate a violation of the 525 o C temperature limit assuming the room temperature does not change from 20 o C? Part 2 (25 points) – Ignoring precision uncertainty, what is the temperature uncertainty at a 95% confidence interval if the Keithly 2701 DVM is used to take the measurement? Solution:
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This note was uploaded on 12/14/2009 for the course MAE 4800 taught by Professor Solbrekken during the Spring '09 term at Missouri (Mizzou).

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examI_f2005_soln - Name MAE 4800 Exam I Open notes Open...

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