AWS CWI Part A – WIT Chapter 6

1.

The property of metals that describes their resistance to indentation is called:

Note: For conversion Factors, refer to “Welding Usage Conversion Chart” on pages 10-9 of the
workbook and for Formulae refer to pages 10-8.

2.

The property of metals that describes their ability to carry a load is:

3.

Generally, as strength increases for carbon steels, the ductility:

4.

The property that describes the ability of a metal to deform when stressed is:

5.

The type of strength related to a metal’s behavior when the load is applied in a cyclic manner is:

6.

The yield strength of a material is determined by:

7.

Which metal properties are directly related?

8.

The ability of a metal to absorb energy is called:

9.

The metal property affected by the surface condition of the sample is:

10.

Which alloying element is generally considered to have the most pronounced effect on the properties and performance of carbon steel?

11.

Which alloying element is commonly added to steel to improve its corrosion resistance?

12.

Hydrogen in the molten weld metal can cause:

13.

Which property cannot be determined from a tensile test?

14.

A metal’s ductility can be expressed as:

15.

A tensile specimen having a cross-sectional area of 0.25 sq in breaks at a load of 15 250 lbs.
What is its tensile strength? (Tensile Strength = Load/Area)

16.

The point at which a metal’s behavior changes from elastic to plastic (onset of permanent deformation) is referred to as:

17.

What is the percent elongation of a specimen whose original gage length was 2 in and final gage length was 2.5 in?

18.

The family of hardness tests that uses both a minor and major load is called:

19.

Which of the following tests are referred to as microhardness tests?

20.

What type of test uses a weighted pendulum which strikes a notched test specimen?

21.

Endurance limit is an expression used for what type of testing?

22.

The metal property that relates to a metals deforming without failing is called:

23.

Which test is not considered a soundness test?

24.

The type of testing used to evaluate the type of microstructure present in a metal is called:

25.

Which of the following tests can be used to judge the soundness of a weld?

26.

Which of the following tests will generally be used to determine the behavior of a metal at a specific temperature?

27.

With respect to the rolling direction of steel plate manufacture, which statement is true?

28.

The fillet weld break test is used to evaluate the:

29.

The welding inspector is not concerned with the mechanical and chemical properties of metals.

30.

For plain carbon steels, their approximate tensile strength can be estimated by multiplying their BHN by:

31.

Notch toughness and impact strength are not synonymous.

32.

Phosphorus and sulfur are added to carbon steel to improve:

33.

To improve the low-temperature properties of carbon steels, the most likely alloy addition would be:

34.

Hydrogen, oxygen, and nitrogen can all cause embrittlement in carbon steel.

35.

Gage marks on a tensile specimen are:

36.

The ‘offset method’ is used for determining which property?

37.

Surface preparation is not an important step in destructive testing.

38.

The Brinell hardness test is always a destructive test.

39.

In Charpy testing, the test temperature is:

40.

In Charpy testing, the test data can be reported as:

41.

The objective of the guided bend test is to break the sample.