MCQOPTIONS
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MCQOPTIONS
This section includes 9 Mcqs, each offering curated multiple-choice questions to sharpen your Welding knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Slag used in fusion welding has nitrogen. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 2. |
What is the maximum strength of mild steel arc welds on addition of microelements in the slag? |
| A. | 53 kgf/mm<sup>2</sup> |
| B. | 49 kgf/mm<sup>2</sup> |
| C. | 57kgf/mm<sup>2</sup> |
| D. | 61 kgf/mm<sup>2</sup> |
| Answer» D. 61 kgf/mm<sup>2</sup> | |
| 3. |
A thermit reaction produces heat up to what temperature? |
| A. | 4800 F |
| B. | 4000 F |
| C. | 5600 F |
| D. | 5300 F |
| Answer» C. 5600 F | |
| 4. |
Which of the following property is responsible for weld metal cracking? |
| A. | Stress |
| B. | Strain |
| C. | Temperature conditions |
| D. | Pressure conditions |
| Answer» B. Strain | |
| 5. |
Slag used in fusion welding contains manganese. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 6. |
Which of the following property is considered for controlling the porosity of the metal? |
| A. | Solid solubility |
| B. | Liquid solubility |
| C. | Gas solubility |
| D. | Flame solubility |
| Answer» D. Flame solubility | |
| 7. |
Thermite contains which metal? |
| A. | Zinc |
| B. | Copper |
| C. | Aluminium |
| D. | Manganese |
| Answer» D. Manganese | |
| 8. |
What is the minimum strength of mild steel arc welds on addition of microelements in the slag? |
| A. | 43 kgf/mm<sup>2</sup> |
| B. | 39 kgf/mm<sup>2</sup> |
| C. | 45kgf/mm<sup>2</sup> |
| D. | 48 kgf/mm<sup>2</sup> |
| Answer» B. 39 kgf/mm<sup>2</sup> | |
| 9. |
In which run weld, in ordinary steels, the grain refinement takes place? |
| A. | First |
| B. | Second |
| C. | Third |
| D. | Fourth |
| Answer» C. Third | |