Safe Control Quiz

On the anniversary day on September 16, we had a quiz in connection with the tours. Here we present the questions and answers can be found further down the page. How many do you know the answer to?

Question 1

In what year was Safe Control Materialteknik AB founded?

1. Year 1991
2. Year 2000
3. Year 2001
4. Year 2011

Question 2

The impact strength of a steel is a measure of how tough (ductile) a material is.

Is the impact strength affected by the temperature of the material?

1. Yes, impact resistance increases when the temperature is lower.
2. Yes, impact resistance decreases when it gets colder.
3. No, not until it is colder than -196° C.
4. No, it does not matter what the temperature is.

Question 3

What is meant by “RT” in connection with mechanical testing?

1. This is how the measured breaking point is shortened.
2. There is no such concept.
3. Room temperature.
4. Rolling Tensile test.

Question 4

Stainless steel has a harder time rusting. What is it that makes the steel more resistant to rust?

1. High content of chromium and low content of carbon.
2. High content of carbon and low content of chromium.
3. High content of silicon and aluminum.
4. The chemical composition does not matter.

Question 5

In which year was the use of asbestos-containing material completely banned in Sweden?

1. Year 1968
2. Year 1982
3. Year 2005
4. It is still allowed in some cases.

Question 6

In the picture we see a bundle of fibers with asbestos. How many types of asbestos are there?

1. 1 type.
2. 4 types.
3. 6 types.
4. 15 types.

Question 7

How often should you analyze your drinking water in a private drilled well?

1. Never, we have such good water in Sweden.
2. It is sufficient to analyze once when the well is new.
3. Every ten years.
4. Every three years.

Question 8

The picture shows a cross section of a steel that has corroded (rusted). What type of corrosion is it?

1. Stress corrosion
2. General corrosion
3. Pit corrosion
4. Crevice corrosion

Question 9

The picture shows a cross section of a weld. Which statement is correct?

1. It is a butt weld with slag.
2. It is a butt weld with binding defects.
3. It’s a keel joint with holes in it.
4. It’s an X-joint with holes in it.

Question 10

The picture shows the microstructure of a duplex steel consisting of two phases. What proportion is ferrite (the red phase)?

1. There is no ferrite in the structure.
2. 25 %
3. 50 %
4. 73 %

Decisive Question

How many years, months or days have the current owners of Safe Control Materialteknik worked in the business in total?

In the picture:
Lars Andersson, Catarina Wernlund and Harald Fredriksson.

Quiz – Facit