MCQOPTIONS
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MCQOPTIONS
This section includes 657 Mcqs, each offering curated multiple-choice questions to sharpen your Testing Subject knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Which of the following is not true about friction stir welding? |
| A. | It is a solid state process |
| B. | Fine grained structures can be obtained |
| C. | It eliminates friction welding problems |
| D. | It alters the chemical composition of the workpiece |
| Answer» E. | |
| 2. |
Which of the following processes can be used as alternative technique for joining aluminium and its alloys? |
| A. | Tungsten inert-gas welding |
| B. | Metal inert-gas welding |
| C. | Friction stir welding |
| D. | Oxy-Acetylene flame technique |
| Answer» D. Oxy-Acetylene flame technique | |
| 3. |
Aluminium is difficult to friction weld because of _____ |
| A. | ductility |
| B. | softness |
| C. | micro porosity |
| D. | heat reflectivity |
| Answer» D. heat reflectivity | |
| 4. |
Friction welding process is restricted to_____ |
| A. | square bars |
| B. | round bars |
| C. | hexagonal bars |
| D. | bars having diameters less than 20mm |
| Answer» C. hexagonal bars | |