Quiz

With the quiz below you can test your knowledge on cleaner production in textile wet processing. After filling out the questions you can submit your answers to see how many of them are correct. 16 or more correct answers out of 20 makes you quite an expert. In case you have 15 or less correct answers, you are invited to take the test again. The test is purely for your own use and the results are not stored or otherwise used by the e-textile project team.

1.
Which aspects are not considered in the e-efficiency feasibility checker?
 
economic aspects
 
technical aspects
 
environmental aspects
 
reputation aspects
 
2.
Which of the following has proved to be the most successful in reducing industrial water consumption?
 
Environmental protection legislation
 
Increased price of municipal water supplies
 
Pressure from customers to adopt environmentally friendly technology
 
Nothing can make industry to reduce its water consumption
 
3.
What is the first step in order to implement a new management instrument successfully?
 
environmental impact
 
establish a qualified team
 
find out who can finance your activities
 
analyse your performance
 
4.
Which substance can you use to replace phenol to avoid the use of toxic chemicals in the print paste preparation?
 
Thiourea dioxide
 
di-ethylene glycol
 
Hicoleveller BJD
 
Thiourea dioxide
 
5.
What other term is used to describe solid waste, wastewater and emissions to air?
 
by-products
 
wasted output factors
 
non-product output
 
unproductive input factors
 
6.
Compared to cleaning by hand, what is the percentage of water usage of a high-pressure cleaner?
 
10-20% less
 
5-10% more
 
50-60% more
 
50-75% less
 
7.
What is the maximum level of formaldehyde residues on textile for orders from Japan and EU markets?
 
There is no indication for the level
 
Below 50 ppm
 
Below 70 ppm
 
0 ppm, i.e. there should not be any residue no residue
 
8.
LCA is quite different from a traditional environmental management system in a company. Please select the sentence that is indeed a key difference
 
LCA is subjective and management systems are purely objective
 
There are no ISO standards for LCA
 
LCA cannot be used to improve the environmental performance of a company
 
A company management system only takes into account what happens inside the company, while an LCA covers the entire chain of companies over the life cycle
 
9.
Are the possible measures to take to minimize the use of compressed air?
 
Use blow pistols that use less amount of compressed air with the same efficiency
 
Use light-weight pneumatic tools
 
Replace pneumatic equipment that is over 10 years in service
  all of the above
 
10.
What parameters should be monitored for the quality of the water supply that is used in textile processing?
 
Softness
 
Iron content
 
Conductivity
  All of the above
 
11.
At which process steps listed below can vacuum extraction be applied?
 
Dewatering before the wet-on-wet application of chemicals
 
Removing of unwanted chemicals in the washing stage
 
Dewatering before drying
  All of the above
 
12.
The main operations carried out in wet processing step include:
 
Desizing, scouring, bleaching mercerizing
 
Pre-treatment, dyeing, printing and finishing
 
Dyeing, printing and finishing
 
Desizing, bleaching, dyeing and finishing
 
13.
What is optimum amount of sodium hydroxide (NaOH) used for mercerizing?
 
More than 250 g NaOH /kg fabric
 
Less than 100 g NaOH /kg fabric
 
Depends on the type of cotton
  None of the above
 
14.
An LCA provides a perspective on environmental management. What is the most important difference between environmental management in a company and an LCA?
 
Environmental management in a company focuses on providing a clean image of the company to the outside world
 
LCA calculates the environmental impacts of products.
 
LCA aims at the environmental impact of a product, process or service while environmental management focuses on all aspects of the environmental behavior of a company.
  None of the above is correct
 
15.
What are the benefits of an air jet (stream) dyeing machine?
 
This dyeing machine can dye delicate fibers at high temperatures
 
In an air jet liquor ratios as low as 3:1 are feasible for synthetics
 
The fabric can be circulated up to 2.5 times faster than in a water-jet.
  All of the above
 
16.
Prevention of pollution in ISO 14001 is defined as
 
the reduction of adverse environmental impacts, improved efficiency and reduced costs
 
saving the organization money whilst protecting the environment
 
use of processes, practices, materials or products which avoid, reduce or control pollution which may include recycling, treatment, process changes, control mechanisms, efficient use of resources and material substitution
 
use of processes which reduce or control pollution which may include recycling, treatment, efficient use of resources and material costs
 
17.
What is the approximate amount of steam that is lost due to a small leak of 1mm at 10 bar?
 
0,5 kg of steam per hour
 
2,5 kg of steam per hour
 
1 kg of steam per hour
  None of the above
 
18.
What is/are the benefits of enzymatic scouring at the fabric preparation stage?
 
No corrosion of metal parts
 
Reduced fibre damages
 
Increased color yield
  All of the above
 
19.
The following cost elements have to be considered to calculate the overall costs of hazardous substances in the e-efficiency tool:
 
direct costs
 
disposal costs
 
indirect costs
  all of the above
 
20.
Which future challenges are textile companies facing?
 
stricter regulations
 
increasing competition
 
increasing energy costs
  all of the above
 

 

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