58 welding inspection questions for interview
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| 58 welding inspection questions for interview |
58 welding inspection questions for interview: Visual inspection is destructive testing (DT) and non-destructive testing (NDT) weld quality testing MSQ ITI and CTI
- Which weld defect can be found by using the ultrasonic test?
a) Internal defect
b) Surface defect
c) Incomplete penetration
d) Insufficient throat thickness - Which defect can be found by visual examination of the welded joint?
a) Lack of fusion
b) Misalignment of parts
c) Root defect in a T- fillet weld
d) Interbead slag inclusion - Electricity is not required to conduct which non-destructive test?
a) X-ray test
b) Ultrasonic test
c) Dye penetrant test
d) Magnetic particle test - Name the simplest test which uses sound, to know that there is a crack in a weld.
a) Ultrasonic test
b) Radiographic test
c) Impact test
d) Tensile test - Which one of the following is a non-destructive test?
a) Impact test
b) Tensile test
c) Nick – break test - d) Dye penetrant test
- Which of the following defects is unlikely to be found by visual inspection?
a) Blowholes
b) Undercut
c) Overlap - d) Linear slag inclusion
- Which one of the following is a destructive test
a) X-ray test
b) Ultrasonic test
c) Impact test
d) Magnetic particle test - A metal fails when subjected to sudden shock. What property does it indicate?
a) Tensile strength
b) Brittleness
c) Ductility
d) Toughness - The ductility of weld metal is measured by the
a) Tensile test
b) Bend test
c) Impact test
d) Fatigue test - Izod and Charpy machines are related to the test
a) Impact test
b) Fatigue test
c) Tensile test
d) Bend test - The impact test is used to study the behavior of welded joints under _________
a) Unloading
b) Sudden loading
c) Low loading
d) Normal loading - Which one of the following non-destructive tests can be used to detect surface defects
only?
a) Radiographic test
b) Magnetic particle test
c) Liquid penetrant test
d) Ultrasonic test - A type of non-destructive test requires a photographic film to be placed on one side of
the joint to be tested. What is the name of this test?
a) Radiographic test
b) Ultrasonic test
c) Dye penetrant test
d) Magnetic particle test - Name the non-destructive test which can determine the depth of an internal weld
defects.
a) Impact test
b) Ultrasonic test
c) Magnetic particle test
d) Liquid penetrant test - Which type of test is hazardous to the testing operator?
a) Radiography
b) Ultrasonic test
c) Magnetic particle test
d) Visual inspection - Penetrant and Magnetic particle inspection are mainly used to:
a) Aid visual inspection
b) Because the application standard says so
c) To confirm “visual uncertainties”
d) All of the above - Name the two non-destructive tests which are used to find out the surface defects.
a) MPI & UT
b) Radiography test & UT
c) MPI & DPT
d) DPT & radiography test - Which one of the following is a very important test to be carried out during welding
with little expense?
a) Radiography
b) Ultrasonic test
c) Magnetic particle test
d) Visual inspection - In X-ray, the quality of the radiograph negative is assessed by the?
a) Density of the Film
b) IQI indicator
c) KVA available
d) Stand-off distance - When visually inspecting a fillet weld, it would normally be “sized” by:
a) The leg lengths
b) The actual throat thickness
c) The design throat thickness
d) Both A & C
21. A magnifying glass may be used during visual inspection but BS 5289 states that its
magnification should be:
a) Up to 5ɸ
b) 2 – 2.5 ɸ
c) 5 – 10 ɸ
d) None of the above - The property, which enables the metal to stretch, bend or twist without cracking is
called
a) Toughness
b) Malleability
c) Ductility
d) Hardness
23. The ductility is the property of a material due to which it…
a) Can be drawn into wires
b) Breaks with little permanent distortion
c) Can be rolled or hammered into thin sheets
d) Can resist fracture due to high-impact load - Which of the following properties is desirable in parts subjected to shock & impact
loads?
a) Strength
b) Stiffness
c) Brittleness
d) Toughness - Which of the following mechanical properties of a weld in carbon-manganese steel is the most
affected if the heat input per unit length of the weld is excessively high.
a) Elongation
b) Tensile strength
c) Hardness
d) Toughness - The property of material due to which it breaks with little permanent distortion is
called
a) Ductility
b) Brittleness
c) Malleability
d) Plasticity - The malleability is the property of a material due to which it…
a) Can be drawn into wires
b) Breaks with little permanent distortion
c) Can be rolled or hammered into thin sheets
d) Can resist fracture due to high-impact load - Gamma rays are produced by…
a) Copper
b) Cobalt 60
c) Titanium
d) Tungsten - A liquid penetrant test is used for detecting
a) Surface defects
b) Deep surface defects
c) Sub-surface defects
d) Medium surface defects - Liquid penetrant testing is based on the principle of:
a) Polarized sound waves in a liquid
b) Magnetic domains
c) Absorption of X-rays
d) Capillary action - The advantages of visual inspection are
a) Able to detect internal & external defects easily
b) The simplest, faster & economical
c) No radiation hazards during this test
d) These tests are used on high-quality jobs - Which of the following are ferromagnetic materials?
a) Aluminium, iron, copper
b) Iron, copper, nickel
c) Copper, aluminum, silver
d) Iron, cobalt, nickel - Which of the following units could Charpy V notch energy be measured in?
a) Pounds per square inch
b) Joules
c) Newton per square millimeter
d) None of the above - Which of the following destructive tests is not normally required for welder approval
test for mild steel?
a) Bend test
b) Macro examination
c) Impact test
d) Fracture test - Identify the type of destructive testing in the following list
a) Radiographic test
b) Dye penetrant test
c) Impact test
d) All of the above - Which of the following colors is readily available for magnetic particle test powder?
a) Red
b) Gray
c) Black
d) All of the above
37. The period during which the penetrant remains on the surface of the test piece is
called:
a) Dwell time
b) Soaking time
c) Fixing time
d) Development time - The color of fluorescent penetrant under the presence of a UV light is:
a) Yellow-green
b) Red
c) Blue
d) Green - Which test can be performed without skilled labor?
a) Dye penetrant testing
b) Visual testing
c) Ultrasonic testing
d) Magnetic particle test - Which among the following is the last step in the magnetic particle test method?
a) Observation and inspection
b) Circular magnetization
c) Demagnetization
d) Magnetization - Ultrasonic would be preferred over radiography due to:
a) Ability to find more defects
b) Lowest skill requirements
c) Ability to detect laminations
d) Both a and c - A common use of ultrasonic testing is:
a) Cleaning
b) Detecting of sub-surface indications
c) Determination of the test piece ductility
d) Communications - In which type of test the capillary action principle is used?
a) Magnetic particle test
b) Ultrasonic test
c) Dye penetrant test
d) None of the above - Which among the following is not a type of Non-destructive testing?
a) Compression test
b) Magnetic particle test
c) Ultrasonic testing
d) Radiographic test45.VHN stands for_________
a) Victoria’s hardness number
b) Vicker’s hardness number
c) Victor’s hardness number
d) Velisa’s hardness number - BHN stands for
a) Brinell hardness number
b) Briget hardness number
c) Briz hardness number
d) Bristol hardness number - The test is conducted to know the quality of the weld. Name the test to find out the
percentage of elongation of a weldment.
a) Guided bend test
b) Tensile test
c) Fatigue test
d) Impact test - A guided bend test is used to determine
a) Ductility
b) Impact strength
c) Tensile strength
d) Percentage elongation - Which NDT methods are best suited for evaluating subsurface defects
a) MPI
b) DPT
c) RT
d) VT - Which form of NDT could be used on a fillet weld on aluminum?
a) Dye penetrant testing
b) Ultrasonic testing
c) Radiography
d) MPI - In the bend test, the face of the specimen is in tension and the root is in compression; the type
of the test being carried out would be:
a) a root bend test
b) a side bend test
c) a face bend test
d) none of the above - S.W.G. stands for?
a) Suitable wire gauge
b) Selected wire gauge
c) Special wire gauge
d) Standard wire gauge
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