York Haven Fabricators Weld Test

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| By Bairm

Bairm

Community Contributor

Quizzes Created: 2 | Total Attempts: 1,179

Questions: 8 | Attempts: 149 | Updated: Feb 8, 2024

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This test is designed to test the knowledge and responsibility of a welder employed at YHF.

Questions and Answers

1.

Which answer best explains the meaning of the following weld symbol:
- A.
  
  .25 Spot Weld
- B.
  
  .25 Fillet weld
- C.
  
  .25 Weld corners only
- D.
  
  None of the above
Correct Answer
B. .25 Fillet weld

Explanation
The correct answer is .25 Fillet weld. This weld symbol indicates that a fillet weld with a size of 0.25 inches is required. A fillet weld is a type of weld that joins two pieces of metal at an angle, typically a right angle. The size of the weld refers to the leg length of the fillet weld, which is the distance from the root of the weld to the toe. Therefore, the symbol ".25" represents a fillet weld with a leg length of 0.25 inches.

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2.

What type of shielding gas is used for GTAW?
- A.
  
  Tri-Mix
- B.
  
  75/25 Argon/Co2
- C.
  
  Argon
- D.
  
  Nitrogen
Correct Answer
C. Argon

Explanation
Argon is the correct answer for the type of shielding gas used for GTAW (Gas Tungsten Arc Welding). Argon is commonly used as a shielding gas in GTAW because it provides good arc stability and excellent protection against atmospheric contamination. It helps to prevent oxidation and ensures a clean and high-quality weld.

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3.

Welding machine maintenance is not necessary for the integrity of the weld.
- A.
  
  True
- B.
  
  False
Correct Answer
B. False

Explanation
Welding machine maintenance is necessary for the integrity of the weld. Regular maintenance ensures that the machine is in proper working condition, which in turn ensures that the welds are strong and reliable. Neglecting maintenance can lead to issues such as faulty welds, weak joints, or equipment failure, which can compromise the integrity of the weld. Therefore, it is important to regularly maintain welding machines to ensure the quality and integrity of the welds.

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4.

.5875 is closest to which fraction?
- A.
  
  9/16
- B.
  
  5/8
- C.
  
  3/4
- D.
  
  3/8
Correct Answer
A. 9/16

Explanation
To determine which fraction 5875 is closest to, we can compare it with each fraction given. 5875 is larger than 5/8 and 3/8, so these fractions can be ruled out. 5875 is closer to 9/16 than 3/4 because the numerator of 9/16 is closer to 5875 than the numerator of 3/4. Therefore, the closest fraction to 5875 is 9/16.

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5.

Antisplatter spray is recommended when welding watertight.
- A.
  
  True
- B.
  
  False
Correct Answer
A. True

Explanation
Antisplatter spray is recommended when welding watertight because it helps to prevent spatter from sticking to the surface being welded. This can be especially important when welding watertight, as any spatter that sticks to the surface could compromise the integrity of the weld and potentially lead to leaks. By using antisplatter spray, welders can ensure a cleaner and more reliable weld, reducing the risk of water penetration and maintaining the watertightness of the welded joint.

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6.

What common practice is used to keep warping stainless steel under control?
- A.
  
  Spray outside with water.
- B.
  
  Clamp the part to the table.
- C.
  
  Use a hotter, faster bead when welding.
- D.
  
  All of the above
Correct Answer
D. All of the above

Explanation
All of the above practices are commonly used to keep warping stainless steel under control. Spraying the outside with water helps to cool the metal and prevent excessive heat buildup, which can lead to warping. Clamping the part to the table ensures it remains stable and stationary during the welding process, reducing the chances of warping. Using a hotter, faster bead when welding can also help minimize heat input and prevent warping. Therefore, all of these practices can be effective in controlling warping in stainless steel.

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7.

GMAW steel with Co2 gives a deeper penetrating weld than 75/25 argon/ Co2
- A.
  
  True
- B.
  
  False
Correct Answer
A. True

Explanation
The statement is true because GMAW (Gas Metal Arc Welding) with CO2 (Carbon Dioxide) as the shielding gas provides a deeper penetrating weld compared to using a 75/25 mixture of argon and CO2. CO2 has a higher heat input and a more reactive nature, which helps to increase the weld penetration. On the other hand, the 75/25 argon/CO2 mixture is commonly used for welding stainless steel or thin materials where a shallower weld penetration is desired.

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8.

Sharpening tungsten electrodes against the grain is preferred over with the grain.
- A.
  
  True
- B.
  
  False
Correct Answer
B. False

Explanation
Sharpening tungsten electrodes against the grain is not preferred over with the grain. When sharpening tungsten electrodes, it is generally recommended to sharpen them with the grain. Sharpening against the grain can result in a less precise and less durable point, as well as increased risk of contamination. Sharpening with the grain helps to maintain the integrity of the electrode and ensures a sharper and more effective point for welding applications. Therefore, the correct answer is False.

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Current Version
Feb 08, 2024

Quiz Edited by
ProProfs Editorial Team
Feb 15, 2012

Quiz Created by
Bairm

York Haven Fabricators Weld Test

Which answer best explains the meaning of the following weld symbol:

What type of shielding gas is used for GTAW?

Welding machine maintenance is not necessary for the integrity of the weld.

.5875 is closest to which fraction?

Antisplatter spray is recommended when welding watertight.

What common practice is used to keep warping stainless steel under control?

GMAW steel with Co2 gives a deeper penetrating weld than 75/25 argon/ Co2

Sharpening tungsten electrodes against the grain is preferred over with the grain.