 
			 
			MCQOPTIONS
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				This section includes 20 Mcqs, each offering curated multiple-choice questions to sharpen your Advanced Machining knowledge and support exam preparation. Choose a topic below to get started.
| 1. | State whether the following statement is true or false about etchants.“Etchants are used for controlling H2 absorption in case of Ti alloys.” | 
| A. | True | 
| B. | False | 
| Answer» B. False | |
| 2. | Which of the following, are the main uses of etchants applied in Chemical milling? | 
| A. | Good surface finish | 
| B. | Uniform material removal | 
| C. | Control intergranular attack | 
| D. | All of the mentioned | 
| Answer» E. | |
| 3. | Which of the tolerance values are obtained, when we use photo resist method for maskant application? | 
| A. | ± 0.013 mm | 
| B. | ± 0.045 mm | 
| C. | ± 0.077 mm | 
| D. | ± 0.179 mm | 
| Answer» B. ± 0.045 mm | |
| 4. | Which of the tolerance values are obtained, when we use silk-screen resist method for maskant? | 
| A. | ± 0.013 mm | 
| B. | ± 0.045 mm | 
| C. | ± 0.077 mm | 
| D. | ± 0.179 mm | 
| Answer» D. ± 0.179 mm | |
| 5. | State whether the following statement is true or false regarding maskants.“After etching, maskants should be removed easily and inexpensively.” | 
| A. | True | 
| B. | False | 
| Answer» B. False | |
| 6. | State which of the following statement is true or false regarding Chemical milling.“Maskants are generally used in CHM, to protect the work piece from the etching chemical agent.” | 
| A. | True | 
| B. | False | 
| Answer» B. False | |
| 7. | WHICH_OF_THE_TOLERANCE_VALUES_ARE_OBTAINED,_WHEN_WE_USE_PHOTO_RESIST_METHOD_FOR_MASKANT_APPLICATION??$ | 
| A. | ± 0.013 mm | 
| B. | ± 0.045 mm | 
| C. | ± 0.077 mm | 
| D. | ± 0.179 mm | 
| Answer» B. ¬¨¬®¬¨¬± 0.045 mm | |
| 8. | State whether the following statement is true or false about etchants.$ | 
| A. | |
| B. | True | 
| Answer» B. True | |
| 9. | Which of the following, are the main uses of etchants applied in Chemical milling?$ | 
| A. | Good surface finish | 
| B. | Uniform material removal | 
| C. | Control intergranular attack | 
| D. | All of the mentioned | 
| Answer» E. | |
| 10. | Which of the following are the accessories, included in the tooling of Chemical milling? | 
| A. | Tanks and hooks | 
| B. | Brackets and racks | 
| C. | Fixtures | 
| D. | All of the mentioned | 
| Answer» E. | |
| 11. | Which of the following are can be used as guides for scribing process in Chemical milling? | 
| A. | Layout lines | 
| B. | Simple templates | 
| C. | Fibre glass | 
| D. | All of the mentioned | 
| Answer» E. | |
| 12. | Scribing plates are used to define, which of the following parameters in Chemical milling? | 
| A. | Areas to be exposed | 
| B. | Volumes to be exposed | 
| C. | Areas not to be exposed | 
| D. | Volumes not to be exposed | 
| Answer» B. Volumes to be exposed | |
| 13. | Which of the tolerance values are obtained, when we use cut and peel mask method for maskant? | 
| A. | ± 0.013 mm | 
| B. | ± 0.045 mm | 
| C. | ± 0.077 mm | 
| D. | ± 0.179 mm | 
| Answer» E. | |
| 14. | In maskant application, photo-resist masks ensure which of the following advantages? | 
| A. | High accuracy | 
| B. | Ease of repetition | 
| C. | Ease of modification | 
| D. | All of the mentioned | 
| Answer» E. | |
| 15. | State whether following statement is true or false regarding maskants. | 
| A. | |
| B. | True | 
| Answer» B. True | |
| 16. | Which of the following can be used to apply the maskants on work piece in Chemical milling? | 
| A. | Dipping or spraying | 
| B. | Rolling or electro coating | 
| C. | Adhesive tapes | 
| D. | All of the mentioned | 
| Answer» E. | |
| 17. | What are the properties that a maskant used in Chemical milling should possess? | 
| A. | Be tough and adhere well | 
| B. | Scribe easily | 
| C. | Be inert to chemical reagent | 
| D. | All of the mentioned | 
| Answer» E. | |
| 18. | Which of the following are the materials used for making maskants? | 
| A. | Synthetic materials | 
| B. | Rubber materials | 
| C. | Polymeric materials | 
| D. | All of the mentioned | 
| Answer» E. | |
| 19. | State which of the following statement is true or false regarding Chemical milling. | 
| A. | |
| B. | True | 
| Answer» B. True | |
| 20. | Which of the following are the tools required for Chemical milling? | 
| A. | Maskants | 
| B. | Etchants | 
| C. | Scribing plates | 
| D. | All of the mentioned | 
| Answer» E. | |