02. Joint Design - CSWIP 3.1 Preparation Course - LAB Institute

1. 1. Which of the following welds would usually be considered for an open corner joint?

• a. Plug weld

• b. Butt weld

• c. Fillet weld

• d. Spot weld

2. 2. A fillet weld has an actual throat thickness of 8mm and a leg length of 7mm. What is the amount of excess weld metal?

• a. 2.1mm

• b. 1.8mm

• c. 3.1mm

• d. 1.4mm

3. 3. Equal preparation each side in a double-V preparation called as :

• a. Asymmetrical double-V

• b. Symmetrical double-V

• c. Double-U joint

• d. a and b correct

5. 4. Which of following preparation the easier to weld?:

• a. Asymmetrical double-V

• b. Symmetrical double-V

• c. Double-U joint

• d. Single U

5. 5. To keep distortion to a minimum, which of the following butt weld preparations would be the most suited for a 15mm thick structural welded joint in the PA position

• a. Single U butt

• b. Double V butt

• c. Single V butt

• d. All of the above

6. 6. Which type of joint from below, that the root radius is used?

• a. Single-1

• b. Single-U

• c. Double-U

• d. All of the above

7. 7. What would be a typical bevel angle for a single V butt weld in the PA position?

• a. 70°

• b. 30°-0°, +5°

• c. 15°

• d. None of the above

8. 8. What is the meaning of Rp?.

• a. Ultimate Tensile Strength

• b. Proof stress

• c. Maximum stress

• d. All of the above

9. 9. In which of following joint preparation the lowest residual stress?.

• a. Single - J

• b. Single-U

• c. Double-U

• d. All of the above

10. 10. Why included angle for Aluminium is normally made bigger than included angle for C-Mn Steel during welding?.

• a. Avoid lack of side wall fusion

• b. Higher Proof stress

• c. To enable for removing oxide

• d. a and c correct