Exam (elaborations)
PSE 472 Test 1 Questions & Answers 2024/2025
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PSE 472 Test 1 Questions & Answers 2024/2025
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PSE 472 Test 1 Questions & Answers2024/2025
Mahine drive sections - ANSWERS1. Couch Roll (wire)
2. 1st Press
3. 2nd Press
4. Smoothing Press
5. 1st Dryer Section
6. Size Press
7. 2nd Dryer Section
8. Calender
9. Reel
Manual control - ANSWERSUses % open
Automatic control - ANSWERSUses pressure control
Cascade control - ANSWERSUsed for moisture control with BW setpoint
Target shifting - ANSWERSImproved control allows us to shift target- With good control, bad paper may
be eliminated; target can be moved to lower cost control
Essentially narrowing the curve
Improved MD Variations Benefits for Weight - ANSWERS65% tighter control
0.15 lb target shift
Improved quality
Fewer breaks
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