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- 1. Multiple Choice
It removed the entrained air in the stock before it enters the headbox.
Defoamer
Deculator
Defoamer and Deculator
None of the Above
- 2. Multiple Choice
To cause foam bubbles to coalesce to the point where they are large enough to float harmlessly to the water surface.
Defoamer
Deculator
Defoamer and Deculator
None of the Above
- 3. Multiple Choice
Behaves as part of the water phase.
Entrained Gas
Dissolved Gas
Air Bubbles
None of the Above
- 4. Multiple Choice
Process where stock enters the deculator through several nozzles.
Impinging
Boil
Spraying
Flushing
- 5. Multiple Choice
Requires cold water to reduce the temperature of the vapor passing to the first stage vacuum pump.
Cooling Media
Cooling Tower
Fresh Water
Pre Condenser
- 6. Multiple Choice
What is the minimum elevation of Deculator from Fan Pump.
30 meters
30 centimeters
30 inches
30 feet
- 7. Multiple Choice
Measures the amount of entrained air by volume.
Entrained Gas Analyzer
Entrained Gas Test
Deculator Efficiency
All of the above
- 8. Multiple Choice
Process where the stock is impinged against the roof of the deculator.
Impinging
Spraying
Boil
None of the Above
- 9. Multiple Choice
Have sufficient buoyancy to rise to the surface.
Entrained Air
Dissolved Air
Air Bubbles
Soft Drinks
- 10. Multiple Choice
When pressure is reduce, dissolve gases can come out of the solution to form tiny bubbles that move along with the fiber.
Entrained Air
Dissolved Air
Air Bubbles
All of the Above
- 11. Multiple Choice
Process at Deculator where Stock is introduced to a vessel under vacuum.
Impinging
Spraying
Boil
Flushing
- 12. Multiple Choice
Formula for computing Deculator efficiency.
= (Vol. entrain air out - Vol. entrain air in) / Volume of entrain air in
= (Vol. entrain air in - Vol. entrain air out) / Volume of entrain air out
= (Vol. entrain air in - Vol. entrain air out) / Volume of entrain air in
= (Vol. entrain air in + Vol. entrain air out) / Volume of entrain air in
- 13. Multiple Choice
True or False: Dissolved gas behaves as part of the water phase
True
False
- 14. Multiple Choice
True or False: Too much defoamer does not affects the performance of AKD, but can cause or worsen deposit problems.
True
False
- 15. Multiple Choice
True or False: Cavitation and plugging means accumulated fiber on pump impellers.
True
False
- 16. Multiple Choice
True or False: Cavitation in centrifugal pumps creating higher energy consumption.
True
False
- 17. Multiple Choice
True or False: Deculator process requires high temperature at pre condenser.
True
False
- 18. Multiple Choice
True or False: Accept of 1Ry Cleaners will go to Deculator to remove entrained air before going to Headbox Fan pump.
True
False
- 19. Multiple Choice
True or False: The stock will boil (vapor pressure) at temperature of 49ºC and atleast 26.5 in Hg vacuum pressure.
True
False
- 20. Multiple Choice
True or False: Function of Deculator is to remove entrained air in the white water before it enters the heabox.
True
False
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