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MCS,PHD
Argosy University/ Phoniex University/
Nov-2005 - Oct-2011
Professor
Phoniex University
Oct-2001 - Nov-2016
2 questions in general engineering principles - 16-4500 Engineering, Technology and the EnvironmentReferral WorkReassessment:Single reassessment packageWord count: N/AWork required: You should attempt ALL questions in part A AND part B.
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16-4500 Engineering, Technology and the Environment
Referral Work  Â
Reassessment:  Single reassessment package  Â
Word count: N/A Â Â
Work required: Â Â
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You should attempt ALL questions in part A AND part B.
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PART A: Engineering Technology and Materials
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Q1 Give the formula for the hoop stress in a pipe, and use it to estimate the hoop stress (in MPa) in a PWR nuclear pressure vessel, which is 8m in diameter, with a wall thickness of 300mm, and operates at 170bar water pressure.Â
                                             [15 marks]
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Q2 For the beams shown below determine the reactions at the supports. Â
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                                             [15 marks]
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Q3 The following results were obtained in a uniaxial tensile test for a metal sample with a 25.0 mm gauge length of 12.5 mm diameter,Â
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Ext.
mm .03 .04 .063 .067 .075 0.15 0.63 1.15 1.87 3.12 3.5 4.0 Â Â
load
KN 12 20 24 28.8 32.5 33.4 63.0 79.8 93.0 101 99.0 80.0 Â
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Plot the engineering stress-strain curve, and estimate the yield stress, Young's modulus, and ultimate tensile strength for this batch of material. Â
                     [20 marks]
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PART B: Environment and Society
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Answer the following questions, in your own words. Marks will not be awarded where reference sources have been used inappropriately.
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Q1 Explain, with the aid of a diagram, the phenomenon known as the ‘greenhouse effect’ and describe how human activity has influenced this effect.
[10 marks]
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Q2 Identify key sources of CO2, SO2 and NOx gas emissions in both the energy generation and transport sectors and describe strategies for their reduction.
[15 marks]
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Q3 Summarize the renewable energy sources available for electricity generation, giving brief details of the mode of operation for each.
[10 marks]
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Q4 State, with justification, which of the source(s) identified in Q3 you think would be most appropriate for the UK.
[15 marks]
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Submission Deadline: 9th August 2012 Â Â
Hand in details (if applicable): N/A Â Â
Module Leader: Oliver Lewis  Â
Contact details: Materials and Engineering Research Institute,
Sheffield Hallam University,
Howard Street,
Sheffield.
S1 1WB
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Tel: Â Â Â Â 0114 225 4074
Email:   o.lewis@shu.ac.uk  Â
Please note that work may also be posted by, no later than the deadline date and time, by Recorded Delivery, so that its journey can be tracked. Â Please keep any receipts obtained as proof of posting.
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Please submit a cover sheet with your work - Helpdesk link
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and post to:Â
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Sheaf Reception: Sheffield Hallam University, Howard Street, Sheffield, S1 1WB
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