1. _____ lead to distortion surrounding the welded joints. (a) Residual stresses

Question

1. _____ lead to distortion surrounding the welded joints.

(a) Residual stresses (b) Cracks (c) Overlap (d) Incomplete fusion

2. Which of the following is NOT an issue in welded joints?

(a) Porosity (b) Cracks (c) Residual Stresses (d) Hot Shots

3. Which of the following is a solid state welding processes?

(a) Brazing (b) Soldering (c) Cold Welding (d) SMAW

4. In which of the following welding processes, filler metals only are melted at temperatures above 450°C?

(a) Brazing (b) Soldering (c) Cold Welding (d) SMAW

5. Which of the following is involved in friction welding process:

(a) Heat (b) Pressure (c) Both of them (d) None of them

6. In resistance welding, the required energy is generated by chemical reactions

(a) True (b) False

Explanation / Answer

1. (a) Residual stresses

2. (d) Hot Shots

3.(c) Cold Welding

4. (a) Brazing

5.  (b) Pressure

6. (b) False

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