PROCESSING NEW FIBRES

What are the two main sources of fibre for papermaking?
1. Hardwoods and non-woods
2. Softwoods and non-woods
3. Hardwoods and softwoods
4. Non-woods and annual crops
Which is the main pulping process?
1. Mechanical
2. Chemical
3. Hybrid
4. Thermomechanical
Which is the main type of chemical pulping?
1. Bleached Kraft
2. Unbleached Kraft
3. Bleached Sulphite
4. Unbleached Sulphite
Where is eucalyptus mainly grown?
1. Spain, Portugal and Latin America
2. Canada and Scandandinavia
3. Spain, Portugal and Canada
4. Latin America and Scandinavia
Where is Eucalyptus Grandes primarily grown
1. Spain
2. Portugal
3. North America
4. Latin America
What would you use TMP for?
1. Security papers
2. Newsprint
3. Teabag
4. Office papers
With regard to HC pulpers, which one of the following statements is not true
1. HC pulpers damage fibres
2. LC pulpers create fines and anionic trash
3. HC pulpers use more energy per MT than LC pulpers
4. HC pulpers cannot break fown paper containing wet strength
With regard to pulpers, which one of the following statements is true
1. HC pulpers cannot break down papers containing wet strength
2. HC puplers damage fibres
3. HC pulpers use more energy per MT than LC pulpers
4. HC pulpers produce a lot of anionic trash
Which one of the fllowing statements is true
1. A Deflaker is another name for a disc refiner
2. Deflakers are good at breaking down papers containing wet strength
3. Deflakers remove contamination
4. The gap between the deflaker plates is 2-3 mm
The three forces applied by a deflaker are
1. Mechanical impact forces
  Delamination
  Fibre to fibre friction
2. Mechanical impact forces
  Shear forces
  Fibre to fibre friction
3. Mechanical impact forces
  Shear forces
  Hydrodynamic forces
4. Mechanical impact forces
  London forces
  Fibre to fibre friction
Which of the following is NOT part of a beater
1. Backwater
2. Fly bars
3. Midfeather
4. Bedplate
Three parts of a refiner plate are.....
1. Bars, valleys dams
2. Knives, cuts, valleys
3. Bars, stools,rims
4. Knives, perforations, bars
What are the three ways of refining two fifferent types of fibre?
1. Seperate, mixed, sequential
2. Seperate, continuous, sequential
3. Seperate, mixed, continuous
4. Continuous, mixed, sequential
Which sheet property reacts differently to increased refining
1. Tear
2. Tensile
3. Smoothness
4. Caliper
Which statement is correct
1. External fibrillation increases the surface area of the fibre
2. Internal fibrillation decreases the fibre length
3. External fibrillation increases the flexibility of the fibre
4. Internal fibrillation increases the surface area of the fibre
Lightweight rejects are rejected from the BOTTOM of which type of centrifugal cleaner?
1. Forward cleaner
2. HC cleaner
3. Sand cyclone
4. Reversed cleaner
The slotted screen basket was the......
1. Fourth generation of screen basket
2. First generation of screen basket
3. Second generation of screen basket
4. Third generation of screen basket
The function of the deculator is to......
1. Remove air from stock
2. Fibre fractionation
3. De-flocculation of fibres
4. mix different fibre streams
The problem with an over filled blending chest is that it will......
1. Cause the fibre blend approaching the machine to vary
2. Overflow
3. Use too much stock
4. put an additional load on the effluent plant
The manifold by which the stock enters the flowbox evolved in the following order
1. 1 - simple
  2 - fish tail
  3 - divided
  4 - tapered
2. 1 - simple
  2 - divided
  3 - fish tail
  4 - tapered
3. 1 - simple
  2 - fish tail
  3 - tapered
  4 - divided
4. 1 - simple
  2 - tapered
  3 - divided
  4 - fish tail
Which type of flow box had the problem of fibres falling of the inner walls?
1. Breast Box
2. Open Flow Box
3. Pneumatic Flow Box
4. Hydraulic Flow Box
What is the name of the roll inside the flow box, used to break up fibre flocs?
1. Rectifier Roll
2. Press roll
3. Damping roll
4. slushing roll
Hornification is a result of
1. The fibre drying out
2. The presence of wet strength agents
3. Internal fibrillation
4. external fibrillation

PROCESSING NEW FIBRES

Quiz