Download SGBAU B-Tech 2nd Sem FPOP Mechanical Technology Question Paper

Download SGBAU (Sant Gadge Baba Amravati university) B-Tech/BE (Bachelor of Technology) 2nd Sem FPOP Mechanical Technology Previous Question Paper

B.'l'ech. Second Semester (Food. Pulp, Oil, Pctro)(01d)
Mechanical Technology : 2 SCT 2
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lmtlnmimqmjull Max. Marks : 80
P. Pages : 2
Time : 'l?hree Hours
Notes : 1. Answer three question from Section A and three question from Section B.
2. Due credit will be given to ncatness and adequate dimensions.
3. Illustrate your answer necessary with the help of neat sketches.
1. 3) Describe various ferrous and non ferrous metals used in foundry along with characteristics 7
and use ofcach.
b) What are factors governs the selection of furnace? Describe with sketch direct electric are 7
furnace. What are its merits and dem'erits over other type of furnaces.
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2. 3) Discuss the technological properties of metals. How thcse properties affects the behaviour 7
of metal.
b) Describe with sketch blast furnace. Explain its operations and zones. 7
3. i a) Describe with sketch. . 8
i) balanced core & Chaplet. ii) match plate pattern.
iii) core seat & care print.
b) Describe properties of core sand. W hat are its contents. Sketch any two core boxes. 5
OR
4. :1) Compare 7
i) pattern and ca?sting. ii) green sand and dry sand molding.
b) Describe different type of pattern making allowances why it is required? What is negative 6
allowance?
5. a) C ompare sand casting and die casting. What are advantages of die casting over sand casting. 6
b) Enlist various forging operations. Describe with sketch machine forging. 7
OR
6. a) What do you mean by destructive testing and non destructive testing? Describe with sketch 6
ultrasonic inspection method for testing of casting with its applications.
b) Describe causes and remedies of following casting defects. V 7
i) Hot tear. ii) Run outs
iii) Cold shut and mis run.
7. a) Describe various methods of transmission of speeds used in machine tools. 6
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b) Describe quick return mechanism used in hydraulic shaper.
OR
8. a) What are simple and compound gear trains. Describe each and explain how these are used
in machine tools by quoting suitable example.
b) Describe any two mechanisms used in machine tools to obtain variety type of motion.
9. a) With sketch describe cylindrical grinding.
b) Describe
i) cutting ?uids. ii?) difference in shaper and planer.
OR
10. 3) Describe simple and differential indexing as used in milling.
b) Describe
i) facing and turning. ii) gear cutting.
II. a) Compare soldering, brazing 8; welding along with de?nition, application ot?cach.
b) What is "?l?hcrmit mix"? Describe with sketch Thennit welding along with its application
and merits, demerim over other welding method.
OR
12. 3.) Describe oxidizing ?ame with sketch compare with othcr ?ames Explain how gas cutting
is done: alongwilh sketch of gas cutting torch.
b) How Resistance weldings an: classi?ed? Describe with sketch seam welding.
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