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Quiz 12 Report 11/17/2017

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Quiz 12 Report 11/17/2017

1. Summary

0 0 0 0 0

6

3

8

0 1 2 3 4 5 6 7 8 9

0-3 3-4 4-5 5-6 6-7 7-8 8-9 9-10

Number of Students

Grade

Quiz 12 Grade Distribution

8.94 8.68 8.24 8.63 9.02

0.94 0.8 1.37 1.07 1.21

0.00 1.00 2.00 3.00 4.00 5.00 6.00 7.00 8.00 9.00 10.00

2017 2016 2015 2014 2013

Grade

Year

Quiz 12 Comparison with Previous Years

Average Standard Deviation Average Over 2013-2017

Total number of students 18

Attended 17

Missed 1

Average grade 8.94

Standard deviation of grades 0.94

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2 2. Comments

• Some students used wrong characteristic length for Reynolds number calculation

• Some students made mistakes when calculating velocity using Blasius data.

7.54 9.18

7.96 8.46 8.41 9.13

8.16 7.72

8.88 8.81

9.46 8.94

2.04

1.00 1.31 1.05 1.08 1.12

1.74 1.90

1.16 1.28

0.88 0.94 0.00

1.00 2.00 3.00 4.00 5.00 6.00 7.00 8.00 9.00 10.00

1 2 3 4 5 6 7 8 9 10 11 12

Grade

Quiz #

Quiz Grade History

Average Standard Deviation

Références

Documents relatifs

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• Some students made mistakes in calculating

• Some students made mistakes in calculating Froude and Weber numbers and got consequently wrong velocity/viscosity/surface

• Some students did not simplify correctly the energy equation therefore they could not find easily a relation between f

• Few students did not report the flow rate in m 3 /hr as required (P6.25). • Some students made mistakes in calculating the friction velocity

 Students were not able to simplify governing equation properly.  Students were not prepared

 5 students used the incorrect Reynolds number and other did not remember at all.  5 students did not

 The only recurring error was students not understanding which terms simplify