CSWIP: Welding Inspector Exam Quiz!
(111).jpg "CSWIP: Welding Inspector Exam Quiz!")
Do you know what a welding inspector does? A welding inspector is a technical expert who examines welded metal items in buildings, infrastructures, and manufactured goods, which safeguards the parts as they are securely bonded. Welding inspectors investigate the bonds and links between metals. In other words, they safety check to see if the weld has been completed correctly. This quiz will help you pass the exam. Good luck with it.
- 1.What is the arc energy for the following welding process parameters?
- A.
0.7 KJ/mm
- B.
0.6KJ/mm
- C.
0.01KJ/mm
- D.
0.7KJ/mm
- 2.In an all weld metal tensile test, the original test specimens gauge length of 50mm after testing the gauge increased to 72mm, what is the elongation percentage?
- A.
44%
- B.
144%
- C.
69.4%
- D.
2.27%
- E.
The elongation is not normally tested in this test
- 3.What is the ratio between the leg length and design throat thickness on mitre fillet weld with equal leg lengths?
- A.
1 to 1
- B.
2 to 1
- C.
1.414 to 1
- D.
All of the above it depend upon the leg length size
- 4.The toughness and yield strength of steel is reduced by:
- A.
Reducing the grain size
- B.
Increasing the heat input
- C.
Reducing the heat input
- D.
Both a and b
- 5.Which of the following statments is true if applicable to a charpy vee notch impact test?
- A.
It's destructive test used to assess material ductility in the weld zone
- B.
It's a mechanical test used to determine a welds resistance to creep
- C.
It's destructive test, which is used to give a measure of notch toughness
- D.
It's a static test used to determine material toughness in the notch region
- E.
Both a and c
- 6.Haw can you tell the diffrence between an EN/ISO weld symbol and a BS weld symbol?
- A.
The EN/ISO weld symbol will always have the arrow side weld at the top of the reference line
- B.
The EN/ISO weld symbol has the welds elementary symbol placed on a dashed line lying above or below the solid reference line to indicate a weld on the other side
- C.
The EN/ISO weld symbol has a fillet weld leg length identified by the letter "a"
- D.
The EN/ISO weld symbol has a fillet weld throat thickness identified by the letter "z"
- E.
Both b and d
- 7.What is the possible effect of having heat input too low during welding?
- A.
Low toughness,entrapped hydrogen and low hardness
- B.
High hardness,lack of fusion and entrapped hydrogen
- C.
Entrapped hydrogen ,low toughness and high ductility
- D.
Lack of fusion ,low toughness and reduction in ductility
- 8.An MMA electrode classified as E7018 is:
- A.
A basic low hydrogen electrode containing iron powder
- B.
A rutile electrode containing iron powder
- C.
A cellulose electrode suitable for welding in all positions
- D.
A basic electrode depositing weld metal with yield strength af a least 70,000 psi
- E.
Both a and d
- 9.The number 135 is placed at the end of the reference line on a weld symbol according to ISO 2553 what does the number indicate?
- A.
The welding process is stated as MMA
- B.
The welding process is stated as TIG
- C.
The welding process is stated as SAW
- D.
NDT is to e carried out after welding
- E.
None of the above
- 10.Which of the following is the most likely to be considered an essential variable for a welder qualification test?
- A.
A change from an electrode classified to BS EN 499 as an E46 3 INI B to an electrode classified to AWS A5.1 as an E7018
- B.
A change of pipe wall thickness by at least 15 mm
- C.
A change in pre-heat temperature from 50°C to 100°C
- D.
A change from PC welding position to PA welding position
- E.
All of the above
- 11.What would be a typical appearance of a ductile fracture surface?
- A.
Rough randomly torn and a reduction in area
- B.
Smooth fracture surface displaying beach marks
- C.
Step like appearance
- D.
Bright crystalline fracture with very little reduction in area
- E.
Both a and b
- 12.Which of the following under typical conditions using the MMA welding process would give the deepest penetration?
- A.
DC-ve
- B.
DC+ve
- C.
AC
- D.
Both a and b
- 13.The inclusion rate an inductance in the welding circuit when using the MIG/MAG welding process is to:
- A.
Control the rate of spatter in the dip transfer mode
- B.
It enable the welder to weld in position with the spray transfer mode
- C.
It allows for thicker filler wires to be used(2.6-3.6mm diameter)
- D.
It allow full control over droplet size in the spray transfer mode
- 14.An undesirable property of aluminium oxide residue ,when welding is that it:
- A.
Decreases weld pool fluidity
- B.
Requires more heat to melt it when compared to aluminium
- C.
Causes the welder to travel to quickly
- D.
The presence of the oxide makes aluminium impossible to weld
- 15.When welding with the MIG welding process using pure argon as the shielding gas on carbon steel, which of the following problems are likely to occur?
- A.
Copper inclusion and excessive cap heights
- B.
Excessive root penetration and porosity
- C.
Slag inclusion and crater pipe
- D.
Lack of fusion and poor cap profiles
- 16.When considering the tungsten arc welding process what is the purpose of the down-slope (slope -out)control?
- A.
Ensure good penetration
- B.
To prevent the arc striking on the parent material
- C.
To help prevent the formation of crater pipe and possible cracking
- D.
To help prevent tungstan inclusion during welding
- 17.When considering thermal cutting local hardening can be reduced by:
- A.
Increasing the cutting speed
- B.
The use propane as a fuel gas
- C.
Pre heating the material to be cut
- D.
All of the above
- 18.In a semi-automatic welding process, which of the following shielding gas/gas mixtures would normally give the deepest penetration on steel?
- A.
100% argon
- B.
100% CO2
- C.
75% argon +25% CO2
- D.
All of the above would give the same depth in penetration
- 19.In an MMA welding process, which of the following statements is false?
- A.
An arc gap, which remains almost constant even if as usual the welder varies the position of the electrode
- B.
A voltage, which remains almost constant even if as usual the welder, varies the arc gap
- C.
A current, which remains almost constant even if as usual the welder, varies the arc gap
- D.
A and b
- E.
All of the above
- 20.When considering the MIG/MAG welding process which of the following metal transfer modes would be the best suited to the welding of thick plates over 25mm, flat welding position:
- A.
Dip transfer
- B.
Pulse transfer
- C.
Spray transfer
- D.
Globular transfer
- 21.Which of the following current types would you expect to be used for the welding of aluminium with the TIG welding process?
- A.
DC-ve
- B.
DC+ve
- C.
AC
- D.
All of the above
- 22.When considering hydrogen,which of the following welding process would produce the lowest levels in the completed weld (under controlled conditions)?
- A.
MMA
- B.
SAW
- C.
TIG
- D.
FCAW
- 23.Pre heat prior to the welding of a carbon steel but weld:
- A.
Must always be carried out
- B.
Is always carried out using a gas flame
- C.
Need not be carried out if post weld heat treatment is to follow
- D.
None of the above
- 24.In steel the element with the greatest effect on hardness is:
- A.
Chromium
- B.
Manganese
- C.
Carbon
- D.
Nickel
- 25.For a given voltage and current setting on an MMA welding plant, when the arc length is shortened , which of them will be most affected?
- A.
The current will increase
- B.
The current will decrease
- C.
The voltage will decrease
- D.
The voltage will increase
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