CSWIP 3.1 Multiple Choice Paper 1

Answers don’t show in the following questions; we separated to another link. You should spend your time and focus to read, answer the questions correctly, then it is the time to review your results.

Note 1. Don’t remember the questions and answers.
Note 2. Should be used exclusion principle to choose the best answer.

Rolling down to the end page to get the answer link :arrow_double_down:

  1. An MMA electrode which is classified as an E6013 (according to AWS A5.1) is a:
  • Basic type
  • Cellulose type
  • Rutile type
  • Thick coated iron powder type
  1. Which polarity is normally used for GTAW welding of aluminium?
  • AC
  • DC electrode negative
  • DC electrode positive
  • It would make little difference which was used
  1. A code gives the acceptance standard for excess weld metal “h” as h<=1mm+0.1b, max. 5mm; which “b” is the width of the weld cap. For which of the following situations is the excess weld metal acceptable?
  • b = 15 h = 3.0
  • b = 22 h = 3.0
  • b = 28 h = 4.0
  • b = 40 h = 5.4
  1. A fillet weld has a design throat thickness of 8mm. That is the minimum leg length that is required?
  • 5.6mm
  • 11.2mm
  • 11.8mm
  • It can not be determined from the information given
  1. The number 111 is shown at the tall-end of a weld symbol reference line. According to BS EN ISO 2553. What does this number indicate?
  • Welding process
  • Type of welding electrode
  • Welding position
  • Total weld length
  1. Which of the following alloying elements is used mainly to improve the toughness of steels?
  • Chromium
  • Manganese
  • Sulphur
  • Carbon
  1. When MIG/MAG welding, wire feed speed is proportional to:
  • Travel speed
  • Welding current
  • Arc length
  • Inductance
  1. An electrode is classified to BS EN 499 as E 35 3 B. What does 35 ?
  • 350 N/mm2 yield strength
  • 35 Joules at 30 degree C
  • 350 N/mm2 tensile strength
  • 35kpsi tensile strength
  1. A large diameter pipe with a wall thickness of 10mm is to be used for a cross country pipeline. Which electrode type could be used to combine high welding speed and deep penetration?
  • Basic covered
  • Cellulosic covered
  • Rutile covered
  • Iron power loaded
  1. Which NDT method is associated with the use of a yoke?
  • Radiographic testing
  • Helium leak testing
  • Magnetic particle testing
  • Ultrasonic testing
  1. A transverse tensile test piece from a weld joint will give the:
  • Tensile strength of the weld
  • Tensile strength of the joint
  • Stress/strain characteristics of the weld
  • Stress/strain characteristic of the joint
  1. Weldments in carbon-manganese steels, made by low heat input welding may shown
  • Greater ductility
  • Higher distortion
  • Higher dilution
  • Higher hardness
  1. When measuring arc length voltage, where should be measure at
  • Across the terminals of the power source
  • Across the arc and as near practical to the arc
  • Across the power source positive terminal and earth cable
  • It does not matter – anywhere in the circuit
  1. A drawing with symbols to BS EN ISO 2553 will show a 5 mm leg fillet by which of the following:
  • a5
  • s5
  • z5
  • 5z
  1. Using a stabilized stainless steel will reduce the risk of:
  • Excessive distortion
  • Weld decay
  • Formation of iron-sulphides
  • Sour service cracking
  1. Standard oxy-fuel gas cutting equipment can be applied to:
  • Aluminum alloys
  • Carbon steel
  • Austenitic stainless steel
  • Copper
  1. Which of the following types of imperfection is generally considered to be the most serious?
  • Surface breaking planar
  • Root concavity
  • Buried planar
  • Surface breaking non-planar
  1. Weldment in carbon-manganese steels, made using a heat input higher than the maximum specified by the WPS, may show:
  • Higher integrity
  • Lower distortion
  • Lower toughness
  • Higher hardness
  1. The output characteristic of typical MIG/MAG set is
  • Constant voltage
  • Constant current
  • Drooping
  • Pulsing
  1. Which of the following standards is concerned with welder approval?
  • ISO 2533
  • ISO 15614
  • ISO 2553
  • ISO 9606
  1. A long centerline crack has been detected in a submerged arc weld bead this may be due to
  • Use of a high manganese filler wire
  • Use of a damp flux
  • Weld bead is deep and narrow
  • Use of too high voltage
  1. A steel designated as “Z” quality will have:
  • Through-thickness ductility values > 20%
  • Through- thickness ductility values <20%
  • Been specially heat treated
  • Zirconium added to improve weldability
  1. The penetrating power of an X-ray set is expressed in:
  • Curies
  • kV
  • IQI values
  • The number after the isotope type
  1. The included angle used for MMA welding of a 15mm thick steel single V butt joint is most likely to be:
  • 35 Deg.
  • 120 Deg.
  • 70 Deg.
  • 90 Deg.
  1. Which of the following is not a fusion welding process?
  • Friction welding
  • Gas tungsten arc welding
  • Resistance welding
  • Laser welding
  1. A typical baking temperature for basic low hydrogen electrodes is:
  • 120 Deg. C.
  • 350 Deg. C.
  • 500 Deg. C.
  • 200 Deg. C.
  1. Burn through may occur because the:
  • Current is too high.
  • Root gap is too small.
  • Root face is too small.
  • Current is to low.
  1. Which of the following defects will have the more severe effect on the load-bearing capacity of a weld?
  • Undercut.
  • Incompletely filled groove.
  • Irregular width.
  • Excess penetration.
  1. While inspecting a weld on a 100mm thick high carbon steel plate with a … the weld is visually acceptable, however the parent material has severse … the weld approximately 3mm deep, what course of action would you …
  • None, I am only inspecting the weld.
  • Recommend that the area be dressed smooth.
  • Recommend that the area be dressed smooth followed by MPI.
  • High carbon steel is not susceptible to cracking so I would weld over.
  1. Which of these statements are true concerning Lamellar tearing?
  • As hydrogen levels increase Lamellar tearing is more likely.
  • As material thickness increases ductility decreases making Lamellar tearing more likely.
  • Lamellar tearing occurs in the HAZ.
  • Lamellar tearing affects all joint types.

See suggestion answer here.

NOTE : You have to signed-up to become a member prior to view the answers here.

4 Likes

Pls, check again Q30. My Answer is (b) : As material thickness increases ductility decreases making Lamellar tearing more likely.
As definition of Lamellar Tearing : It occur closed to but just outside of HAZ

1 Like

Yes, answer c, d are wrongly !!!

Thanks @mr.lebienthuy, answer should be b as your comments.
The answer had updated in the answer sheet here.

Why B not C

Yes, Lamillar tearing not occur on HAZ area.