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1
1. Summary
Total number of students 10
Attended 9
Missed 1
Average grade 8.28
Standard deviation of grades 1.87
2 2. Comments
• Two students could not use continuity equation correctly, so they calculate wrong thickness of water sheet
• Many students could not use the linear momentum governing equation correctly, and missed inlet mass flow rate to calculate Force
• Some of students used wrong sign at inlet mass flow term
• One student calculated wrong flow rate
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• Many students couldn't get the right sign of the pressure gradient when plugging (ΔP/l) in the momentum equation.. • Several students integrated the governing equation in
COMPARISON WITH LAST 4
Comparison of
Students were not able to simplify governing equation properly. Students were not prepared
Comparison of
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
