CSWIP 3.1 Multiple Choice Questions Set

30 Questions | By Danarsc | Updated: Mar 22, 2022 | Attempts: 2261

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1.

Deflection of the arc by magnetic forces that can make welding difficult to control is commonly known as:
- A.
  
  Arc initiation
- B.
  
  Arc misalignment
- C.
  
  Arc blow
- D.
  
  Arc constriction
2.

Which of the following electrode types is classified to BS EN 499?
- A.
  
  E 38 3 R
- B.
  
  E 6013
- C.
  
  E 7018 - G
- D.
  
  E 51 33 B
3.

Which type of electrode is used for stovepipe welding for overland pipeline construction
- A.
  
  Rutile
- B.
  
  Cellulosic
- C.
  
  High recovery rutile
- D.
  
  Acid-rutile
4.

The three main types of MMA electrodes used for welding C and C-Mn steels are:
- A.
  
  Basic, cellulosic and rutile
- B.
  
  Neutral, cellulosic and rutile
- C.
  
  Basic, cellulosic and neutral
- D.
  
  Rutile, low hydrogen and basic
5.

A WPS may specify a maximum width for individual weld beads (the weave width) when welding C-Mn steels. if the width is exceeded it may cause:
- A.
  
  Lack of inter-run fusion
- B.
  
  A reduction in HAZ toughness
- C.
  
  Lack of sidewall fusion
- D.
  
  Too low a deposition rate
6.

You notice that MMA electrodes with the flux covering removed are being used as filler rods for TIG welding. This should not be allowed because:
- A.
  
  It is wasteful
- B.
  
  The rod diameter may be too large
- C.
  
  The weld metal composition may be wrong
- D.
  
  The rod is too short
7.

In TIG welding, what is the benefit of a current slope-out device? It reduces...
- A.
  
  Tungsten spatter
- B.
  
  Risk of crater cracking
- C.
  
  Risk of arc strikes
- D.
  
  Interpass temperature
8.

Which type of power source characteristic is normally used for manual welding?
- A.
  
  Constant Voltage
- B.
  
  Flat Characteristic
- C.
  
  Constant Current
- D.
  
  A Motor Generator
9.

In MMA, welding penetration is principally controlled by:
- A.
  
  Arc voltage
- B.
  
  Welding speed
- C.
  
  Ferro-silicon in the electrode coating
- D.
  
  Current
10.

Pipe bores of some materials must be purged with argon before and during TIG welding in order to
- A.
  
  Prevent linear porosity
- B.
  
  Prevent burn-through
- C.
  
  Prevent oxidation of the root bead
- D.
  
  Eliminate moisture pick-up in the root bead.
11.

The chemical composition of the weld metal deposited by a C-Mn steel MMA electrode is usually controlled by:
- A.
  
  Core wire composition
- B.
  
  Additions in the flux coating
- C.
  
  Iron powder in the flux coating
- D.
  
  Dilution from the base material
12.

Silicon is added to steel and the covering of MMA electrodes in order to:
- A.
  
  Provide deoxidation
- B.
  
  Improve strength
- C.
  
  Improve toughness
- D.
  
  Provide more resistance to hydrogen cracking.
13.

A Fusible insert for TIG welding helps:
- A.
  
  Reduce porosity
- B.
  
  Give controlled root penetration
- C.
  
  Avoid the need for a back purge
- D.
  
  By acting as a backing for the root run
14.

According to AWS 2.4 a weld symbol for the other side is placed:
- A.
  
  Above the dashed line
- B.
  
  Below the dashed line
- C.
  
  Above the solid line
- D.
  
  Below the solid line
15.

The term low hydrogen electrode is often used for certain electrodes. What type of covering will they have?
- A.
  
  Cellulosic
- B.
  
  Rutile
- C.
  
  Acid
- D.
  
  Basic
16.

A Hydrogen controlled MMA electrode can always be recognized by the:
- A.
  
  EN code letter (or AWS code number)
- B.
  
  Electrode length
- C.
  
  Trade name
- D.
  
  Colour of the covering
17.

According to BS EN 22553 a weld symbol for the other side is placed:
- A.
  
  Above the dashed line
- B.
  
  Below the dashed line
- C.
  
  Above the solid line
- D.
  
  Below the solid line
18.

Which of the following units is used to express heat input?
- A.
  
  Joules
- B.
  
  N/mm2
- C.
  
  J/mm2
- D.
  
  KJ/mm
19.

Which of the following elements is added to steel to give resistance to creep at elevated service temperatures?
- A.
  
  Nickel
- B.
  
  Manganese
- C.
  
  Molybdenum
- D.
  
  Aluminium
20.

Nick break and fillet fracture tests are used for assessing:
- A.
  
  Weld quality
- B.
  
  Weld metal ductility
- C.
  
  Weld metal toughness
- D.
  
  Resistance to fracture
21.

Which of the following steels is considered non-magnetic?
- A.
  
  18% Cr, 8% Ni
- B.
  
  2.25Cr 1Mo
- C.
  
  9%Cr, 1Mo
- D.
  
  9%Ni
22.

Weld spatter during MMA welding is most likely to be caused by:
- A.
  
  Excessive current
- B.
  
  Incorrect baking and storage of electrodes
- C.
  
  Bad batch of electrodes
- D.
  
  Too low an OCV
23.

A qualified Welding Procedure Specification is used to:
- A.
  
  Give instruction to the welder
- B.
  
  Give information to the welder
- C.
  
  Give confidence that welds will have the specified properties.
- D.
  
  All of the above
24.

An arc strike (stray flash) on a steel component is regarded by some codes as unacceptable because:
- A.
  
  It will cause copper contamination
- B.
  
  It may cause hard spots
- C.
  
  It may give cracking
- D.
  
  Both B and C
25.

In a transverse tensile test brittleness would be indicated if:
- A.
  
  There is a reduction in cross-section at the position of fracture
- B.
  
  The fracture surface is flat and featureless but has a rough surface
- C.
  
  Fracture occurred in the weld metal
- D.
  
  The fracture face shows beach marks