2 machine technology, 4 dewatering methods

Which type of extraction press is regarded to be state-of-the-art?
1. Roller press
2. 1-stage press
3. 2-stage press
What is the goal of modern extraction technology?
1. Energy savings in the entire working process
2. Reduction of chemical remainings and alcalinity
3. Processing of mainly modern textiles
Which are the 3 columns of extraction technology?
1. Spinning, pressing, drying
2. Residual moisture, cycle time, productivity
3. Speed, power, drainage
How can the speed of an extraction press or spin be increased?
1. Reducing the cycle time of the tunnel washer
2. Reducing the cleaning and maintenance intervalls
3. Reducing the ancillary times of the press or spin
Which pressure is applied to textiles when they are spinned in a centrifugal extractor with 800 g?
1. 3 bars
2. 40 bars
3. 56 bars
Which type of drainage system in extraction presses does not exist?
1. Belt with drainage plate
2. Belt with pusher
3. Perforated plate with pusher
Which unloading system of extraction presses is most gentle to the textile surface?
1. Pusher
2. Perforated plate
3. Belt
How can a flat distribution of textiles be achieved in a centrifugal extractor?
1. Large drum volume
2. Fast loading and unloading
3. High speed spinning
What is shown by a residual moisture curve?
1. Energy consumption in the entire working process
2. Extraction performance depending on the cycle time
3. The ratio between ancillary time and total cycle time
Which system can be used with cycle times up to 110 seconds?
1. Only the extraction press
2. Only the centrifugal extractor
3. Both, depending on the application
Which system can be used with cycle times larger than 180 seconds?
1. Only the extraction press
2. Only the centrifugal extractor
3. Both, depending on the application
Which system should be prefered for extacting cotton flatwork?
1. Extraction press
2. Centrifugal extractor
3. Both, depending on the application
Which system should be prefered for extaction garments (with or without buckles)?
1. Extraction press
2. Centrifugal extractor
3. Both, depending on the application
How - in general - is the output of ironers and dryers be influenced by a reduction of the moisture retention?
1. A reduction of the moisture retention leads to lower hourly outputs of ironers and dryers
2. A reduction of the moisture retention leads to higher hourly outputs of ironers and dryers
3. The moisture retention has no influence on the hourly output of ironers and dryers

2 machine technology, 4 dewatering methods

Chapter 4 dealed with modern dewatering methods.