NIOS 10th Class (Secondary) Last 10 Years 2010-2020 Previous Question Papers || National Institute of Open Schooling
DR. BABASAHEB AMBEDKAR TECHNOLOGICAL UNIVERSITY, LONERE
Mid Semester Examination - March 2019
Course: B. Tech in Mechanical Engineering Sem: III
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Subject Name: Manufacturing Process-I Subject Code: BTMEC401
Max Marks: 20 Date: 11/3/2019 Duration: 1 Hr.
Instructions to the Students:
- Assume suitable data wherever required.
- Draw figure wherever necessary.
- Figure to right indicates full marks.
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| (Level/CO) | Mark | ||
| Q. 1 | FirstRanker.com Solve all the Multiple Choice Questions | 1 X 6= | |
| 1. In casting, which of the following furnace is NOT used | Knowledge/CO1 | ||
| a) Puddling Furnace b) Crucible Furnace c) Cupola Furnace d) Induction Furnace | Knowledge/C01 | ||
| 2. Which of the following casting process is known as counter gravity casting? | Knowledge/CO1 | ||
| a) Slush casting b) Vacuum casting c) Investment casting d) Sand casting | Knowledge/ CO2 | ||
| 3. Defect in casting includes | Knowledge/ COP | ||
| (a) Hot tearing b) Cold tearing c) Chatter d) All of the above | |||
| 4. Which of the following is NOT the rolling process | |||
| a) Shape rolling b) Thread rolling c) Ring rolling d) Shell rolling | |||
| 5. On small scale, mills which utilizes scrap material and that is melted in electric-arc furnaces, cast, and continuously rolled into specific lines of products is known as | |||
| a) Two high mill b) Three high mill c) Four high mill d) Minimills | |||
| 6. Extrusion ratio is | Knowledge/COP | ||
| a) ratio of the cross-sectional area of the billet to that of the extruded product | |||
| b) ratio of the cross-sectional area of the extruded product to that of the billet | |||
| Q.2 | Solve Any Two of the following. | X 2- | |
| (A) What is the difference between expandable mold & permanent mold? Enlist various types of casting process. | Comprehension CO1 | ||
| (B) Explain any one process out of ring rolling or shape rolling. | Comprehension/ CO2 | ||
| (C) Which are the three principal extrusion defects? | Comprehension/ CO2 | ||
| Q.3 | Solve Any One of the following. | 1X 8- | |
| (A) What is difference between hot chamber & cold chamber die casting? Explain any one process briefly. | Application/ CO1 | ||
| (B) How many types of mills can be used for rolling? Explain all of them with illustration. | Application/CO2 |
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