CSWIP 3.1 Paper Six Questions And Answers

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Columnar growth takes place when a metal is:

a. Colda

b. Losing heat

c. Being heated

d. Being rolled

When steel is heated above its upper critical temperature, the structure produced is:

a. Martensite

b. Austenite

c. Pearlite

d. Sorbite

The first sub-zone in the heat-affected zone of the parent metal nearest the weld deposit will consist of:

a. Large crystal grains

b. Small crystal grains

c. Elongated crystal grains

d. Distorted crystal grains

Which of the following can arise from copper inclusions in a mild steel weld?

a. Weld metal cracks

b. HAZ cracks

c. Lack of fusion

d. Porosity

If a low-carbon steel pipe has to carry a liquid, care must be taken when making the butt welds to ensure penetration is not excessive because of it:

a. Reduces the flow rate of the liquid

b. May increase the rate of corrosion

c. Can contaminate the liquid

d. May cause excessive pipe wear

Which electrode deposits a weld metal with the greatest ductility and resistance to cracking?

a. Rutile

b. Cellulosic

c. Basic

d. Oxidising

Argon purging on the root side is necessary for the TIG welding of stainless steel to:

a. Obtain full penetration

b. Obtain full fusion

c. Avoid porosity in the root

d. Obtain a satisfactory weld surface finish

Low alloy steels having a high carbon equivalent before welding will require:

a. A reduction in carbon content

b. High pre-heat temperatures

c. Low pre-heat temperatures

d. No pre-heating

Stress relief is not helpful in which of the following cases?

a. In improving resistance to stress corrosion

b. In improving dimensional stability after machining

c. In lowering the peak residual stresses

d. In softening the metal

10.

The type of crystal normally found in a single-run arc weld in the as-welded condition is:

a. Equi-axed

b. Polycrystalline

c. Dendritic

d. Columnar

11.

The electrodes for welding low alloy steels should be:

a. Used with a low current value

b. One size larger than for general-purpose electrodes

c. Used for welding in the flat position only

d. Heated in a drying oven before use

12.

You have a macro section of a ‘T’ butt joint that shows a step-like defect lying outside the visible HAZ. What would this defect possibly signify?

a. HAZ cracking

b. Toe cracking

c. Lamination

d. Lamellar tearing

13.

Stray arc strikes are undesirable since they:

a. Leave a poor surface finish

b. Cause weld metal cracking

c. Reduce corrosion resistance

d. Cause local hardening and cracking in the parent material

14.

The purpose of pre-heating low alloy steel pipes before electric arc welding is to:

a. Refine grain structure

b. Relieve internal stress

c. Retard rapid cooling

d. Regulate excessive expansion

15.

Cold cracking is most likely to occur in a weldment if:

a. The rate of cooling is too fast

b. The rate of cooling is too slow

c. It lacks ductility at high temperatures

d. Impurities are present at its grain boundaries

16.

Welder qualification tests are designed to:

a. Test the correctness of the welding procedure

b. Test the welder’s skill

c. Prove the weldability of the parent material

d. All the above

17.

Chromium, when added to steel as an alloying element, has the effect of making the alloy more:

a. Ductile

b. Plastic

c. Hardenable

d. Malleable

18.

When steel suffers hot shortness, it is mostly due to the presence of:

a. Sulphur

b. Phosphorous

c. Silicon

d. Manganese

19.

In positional MMA welding on pipework, welders are having difficulty obtaining good capping profiles when welding in the overhead position. Would you:

a. Advise them to increase the current

b. Advise them to increase the voltage

c. Ask for a new welding team

d. Suggest the use of a smaller diameter electrode

20.

When depositing weld metal, fusion will take place at the sides of the joint resulting in an admixture between weld metal and parent metal. This alloying effect is known as:

a. Diffusion

b. Absorption

c. Dilution

d. Migration

21.

Which one of the following is not helpful in minimizing angular distortion during welding?

a. Use of double ‘V’ weld prep using balanced welding technique

b. Pre-setting of work piece

c. Applying post-weld heat soak

d. Changing from a single ‘V’ prep for thick material

22.

Weld decay in stainless steel can be avoided by:

a. Stress relieving

b. Slow cooling after welding

c. Addition of more manganese to the steel

d. Addition of titanium to the steel

23.

Percentage elongation of a metal undergoing a tensile test is a measure of:

a. Elasticity

b. Plasticity

c. Ductility

d. Malleability

24.

The most common type of failure associated with sharp fillets, notches, and undercut is:

a. Crystallisation

b. Fatigue

c. Corrosion

d. Brittle fracture

25.

When a longitudinal load is put on a lap joint, the stress setup is normally:

a. Shear stress

b. Tensile stress

c. Compressive stress

d. Residual stress

26.

An electro slag weld requires what heat treatment to improve the grain structure?

a. Annealing

b. Stress relieving

c. Normalizing

d. Quench and tempering

27.

When a metal is subjected to a fluctuating load, a condition of cyclic stressing can be set up, which eventually can result in structural breakdown known as:

a Tensile failure

b. Fatigue failure

c. Yield failure

d. Shear failure

28.

The weld dimension used to indicate the minimum strength of a fillet weld is:

a. Leg length

b. Throat thickness

c. Width of bead

d. Length of weld element

29.

What happens to the mechanical properties of steel if the carbon content is increased to 0.5%?

a. The material becomes softer

b. Malleability is increased

c. The tensile strength is increased

d. Ductility is increased

30.

A eutectoid mixture in steel is:

a. A mixture of ferrite and austenite

b. A mixture comprising a substitutional solid solution

c. Called pearlite

d. Called ledeburite

Question 1 of 30

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CSWIP 3.1 Paper Six Questions And Answers

Columnar growth takes place when a metal is:

When steel is heated above its upper critical temperature, the structure produced is:

The first sub-zone in the heat-affected zone of the parent metal nearest the weld deposit will consist of:

Which of the following can arise from copper inclusions in a mild steel weld?

If a low-carbon steel pipe has to carry a liquid, care must be taken when making the butt welds to ensure penetration is not excessive because of it:

Which electrode deposits a weld metal with the greatest ductility and resistance to cracking?

Argon purging on the root side is necessary for the TIG welding of stainless steel to:

Low alloy steels having a high carbon equivalent before welding will require:

Stress relief is not helpful in which of the following cases?

The type of crystal normally found in a single-run arc weld in the as-welded condition is:

The electrodes for welding low alloy steels should be:

You have a macro section of a ‘T’ butt joint that shows a step-like defect lying outside the visible HAZ. What would this defect possibly signify?

Stray arc strikes are undesirable since they:

The purpose of pre-heating low alloy steel pipes before electric arc welding is to:

Cold cracking is most likely to occur in a weldment if:

Welder qualification tests are designed to:

Chromium, when added to steel as an alloying element, has the effect of making the alloy more:

When steel suffers hot shortness, it is mostly due to the presence of:

In positional MMA welding on pipework, welders are having difficulty obtaining good capping profiles when welding in the overhead position. Would you:

When depositing weld metal, fusion will take place at the sides of the joint resulting in an admixture between weld metal and parent metal. This alloying effect is known as:

Which one of the following is not helpful in minimizing angular distortion during welding?

Weld decay in stainless steel can be avoided by:

Percentage elongation of a metal undergoing a tensile test is a measure of:

The most common type of failure associated with sharp fillets, notches, and undercut is:

When a longitudinal load is put on a lap joint, the stress setup is normally:

An electro slag weld requires what heat treatment to improve the grain structure?

When a metal is subjected to a fluctuating load, a condition of cyclic stressing can be set up, which eventually can result in structural breakdown known as:

The weld dimension used to indicate the minimum strength of a fillet weld is:

What happens to the mechanical properties of steel if the carbon content is increased to 0.5%?

A eutectoid mixture in steel is:

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Columnar growth takes place when a metal is:

When steel is heated above its upper critical temperature, the structure produced is:

The first sub-zone in the heat-affected zone of the parent metal nearest the weld deposit will consist of:

Which of the following can arise from copper inclusions in a mild steel weld?

If a low-carbon steel pipe has to carry a liquid, care must be taken when making the butt welds to ensure penetration is not excessive because of it:

Which electrode deposits a weld metal with the greatest ductility and resistance to cracking?

Argon purging on the root side is necessary for the TIG welding of stainless steel to:

Low alloy steels having a high carbon equivalent before welding will require:

Stress relief is not helpful in which of the following cases?

The type of crystal normally found in a single-run arc weld in the as-welded condition is:

The electrodes for welding low alloy steels should be:

You have a macro section of a ‘T’ butt joint that shows a step-like defect lying outside the visible HAZ. What would this defect possibly signify?

Stray arc strikes are undesirable since they:

The purpose of pre-heating low alloy steel pipes before electric arc welding is to:

Cold cracking is most likely to occur in a weldment if:

Welder qualification tests are designed to:

Chromium, when added to steel as an alloying element, has the effect of making the alloy more:

When steel suffers hot shortness, it is mostly due to the presence of:

In positional MMA welding on pipework, welders are having difficulty obtaining good capping profiles when welding in the overhead position. Would you:

When depositing weld metal, fusion will take place at the sides of the joint resulting in an admixture between weld metal and parent metal. This alloying effect is known as:

Which one of the following is not helpful in minimizing angular distortion during welding?

Weld decay in stainless steel can be avoided by:

Percentage elongation of a metal undergoing a tensile test is a measure of:

The most common type of failure associated with sharp fillets, notches, and undercut is:

When a longitudinal load is put on a lap joint, the stress setup is normally:

An electro slag weld requires what heat treatment to improve the grain structure?

When a metal is subjected to a fluctuating load, a condition of cyclic stressing can be set up, which eventually can result in structural breakdown known as:

The weld dimension used to indicate the minimum strength of a fillet weld is:

What happens to the mechanical properties of steel if the carbon content is increased to 0.5%?

A eutectoid mixture in steel is:

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