MCQOPTIONS
Saved Bookmarks
MCQOPTIONS
This section includes 15 Mcqs, each offering curated multiple-choice questions to sharpen your Engineering Materials Metallurgy knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
The heat released in plasma arc welding is about ____________ |
| A. | 2000-5000oC |
| B. | 5000-10000oC |
| C. | 10000-30000oC |
| D. | 30000-50000oC |
| Answer» D. 30000-50000oC | |
| 2. |
Which electrode is used in the process of TIG welding? |
| A. | Tungsten |
| B. | Titanium |
| C. | Tin |
| D. | Tellurium |
| Answer» B. Titanium | |
| 3. |
___________ is used as an inert gas for metal inert gas welding. |
| A. | Argon |
| B. | Radon |
| C. | Neon |
| D. | Nitrogen |
| Answer» B. Radon | |
| 4. |
What is the level of efficiency of a transformer as a welding machine? |
| A. | 10-20% |
| B. | 30-60% |
| C. | 60-80% |
| D. | 80-85% |
| Answer» E. | |
| 5. |
____________IS_USED_AS_AN_INERT_GAS_FOR_METAL_INERT_GAS_WELDING.?$ |
| A. | Argon |
| B. | Radon |
| C. | Neon |
| D. | Nitrogen |
| Answer» B. Radon | |
| 6. |
The heat released in plasma arc welding is about ____________$ |
| A. | 2000-5000<sup>o</sup>C |
| B. | 5000-10000<sup>o</sup>C |
| C. | 10000-30000<sup>o</sup>C |
| D. | 30000-50000<sup>o</sup>C |
| Answer» D. 30000-50000<sup>o</sup>C | |
| 7. |
Which_electrode_is_used_in_the_process_of_TIG_welding?$ |
| A. | Tungsten |
| B. | Titanium |
| C. | Tin |
| D. | Tellurium |
| Answer» B. Titanium | |
| 8. |
Which electrode material is used for welding of carbon steel? |
| A. | Cast aluminum alloy rod |
| B. | Soft steel wire |
| C. | Copper rod |
| D. | Drawn brass rod |
| Answer» C. Copper rod | |
| 9. |
Which electrode material is used for welding of wrought iron? |
| A. | Cast iron rods |
| B. | Low carbon steel rod |
| C. | Mild steel copper coated rod |
| D. | Low alloy steel rod |
| Answer» C. Mild steel copper coated rod | |
| 10. |
What is the level of efficiency of a transformer as welding machine? |
| A. | 10-20% |
| B. | 30-60% |
| C. | 60-80% |
| D. | 80-85% |
| Answer» E. | |
| 11. |
A small depression formed in the parent metal is called _________ |
| A. | Arc length |
| B. | Arc carter |
| C. | Depth of fusion |
| D. | Slag length |
| Answer» C. Depth of fusion | |
| 12. |
What is the temperature of arc needed for arc welding? |
| A. | 600-1000<sup>o</sup>C |
| B. | 2000-4000<sup>o</sup>C |
| C. | 5000-6000<sup>o</sup>C |
| D. | 6000-8000<sup>o</sup>C |
| Answer» D. 6000-8000<sup>o</sup>C | |
| 13. |
What is the color of an acetylene cylinder in case of gas welding? |
| A. | Gray |
| B. | Black |
| C. | Maroon |
| D. | Light blue |
| Answer» D. Light blue | |
| 14. |
The pressure of acetylene in welding torch for oxy-acetylene welding is maintained at _________ |
| A. | 0.66-1.0 bar |
| B. | 0.1-3.5 bar |
| C. | 0.5-3.5 bar |
| D. | 1.0-4.5 bar |
| Answer» B. 0.1-3.5 bar | |
| 15. |
The welding process in which no filler metal is used is classified as ___________ |
| A. | Autogenous |
| B. | Homogeneous |
| C. | Heterogeneous |
| D. | Fusion |
| Answer» B. Homogeneous | |