************
DIPLOMA ENGINEERING – SEMESTER III – • EXAMINATION – SUMMER 2015
Subject Code: 3331901 Date: 02 / 05/2015
Subject Name: Manufacturing Engineering - I
Time: 2:30 pm to 5:00 pm Total Marks: 70
Instructions:
1. Attempt any five questions.
2. Make suitable assumptions wherever necessary.
3. Figures to the right indicate full marks.
4. Each question carry equal marks (14 marks)
************
Q.1 (a) Define Recrystallisation Temperature. List and explain factors affecting on it. 07
(b) Define following terms:
1. Mechanical working 2. Ingot 3. Billet 4. Embossing 5. Swaging 6. Flash 7. Mis match 07
Q.2 (a) List various types of rolling mills and explain four high rolling mills with sketch. 07
(b) Define forging process and write the application and advantages of it. 07
OR
(b) Explain various forging operations in brief. 07
Q.3 (a) State different drawing operations and explain tube drawing operation with neat sketch. 07
(b) Enlist various pattern making materials. Write main five required properties of
pattern materials. 07
OR
Q.3 (a) State the procedure of Brazing and Soldering process. 07
(b) Write short note on: 1. Sweep pattern 2. Loose piece pattern. 07
Q.4 (a) List and explain different steps in core making procedure. 07
(b) Enlist different electric furnaces and explain induction furnace with neat sketch. 07
OR
Q. 4 (a) Explain investment casting process with step by step procedure. 07
(b) Explain following casting process: 1. Semi centrifugal casting 2. Die casting. 07
Q.5 (a) Draw three types of oxy-acetylene flames showing different zones on it. 07
(b) Write short note on any two: 1.Submerged arc welding 2. Thermit pressure welding
3. Adhesive joining. 07
OR
Q.5 (a) State the advantages and applications of resistance welding. 07
(b) Write safety recommendations for gas welding and cutting. 07
************
No comments:
Post a Comment