DR. BABASAHEB AMBEDKAR TECHNOLOGICAL UNIVERSITY, LONERE
Mid Semester Examination - March 2019
Course: First Year B. Tech(Group- A Chem, Mech, Civil) Sem: II
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Subject Name: Engineering Chemistry
Subject Code: BTBS 202
Max Marks: 20
Duration: 1 Hr.
Date: 12/03/2019
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Instructions to the students:
- Do not write anything on question paper
- Neat and labeled diagram must be drawn whenever necessary.
- Use of non-programmable calculator is allowed.
- Figures to the right indicate full marks.
- Assume suitable data if required
- All questions are compulsory
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Attempt the following Questions
| (Level/CO) | Marks | |
|---|---|---|
| 1. If the degree of freedom for any system is zero, the system is said to be | /CO3 | 6 |
| a) Zero Variant b) Divariant c) Invariant d) Both a & c | ||
| 2. For the given system degree of freedom is, | /CO3 | |
| NaCl H2O | ||
| Solid Solution Vapour | ||
| a) 1 b) 2 c) 3 d) 4 | ||
| 3. Phase diagram of sulfur system has.......triple point(s). | /CO3 | |
| a) 4 b) 3 c) 2 d) 1 | ||
| 4. Exhausted zeolite can be regenerated by using | /CO1 | |
| a) HCl b) NaOH c) NaCl d) All of these | ||
| 5. Sodium Zeolite can be represented as | CO1 | |
| a) Ca2O.Si2O3.xNa2O.yH2O b) Mg2O.Al2O3.xSiO2.yH2O | ||
| b) Si2O.Al2O3. xNa2O.yH2O d) Na2O.Al2O3. xSiO2.yH2O | ||
| 6. Hardness of water is usually expressed in equivalent with | /CO1 | |
| a) Ca(OH)2 b) CaCl2 c) CaO d) CaCO3 |
Q.2 Solve Any Two of the following. 3 X 2
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(A) What is condensed phase rule? When is it applied? /CO3
(B) Ion exchange method is more advantageous than zeolite method, give your review. /CO1
(C) Define the term Phase, Invariant system and temporary hardness /CO1, CO3
Q.3 Solve Any One of the following. 8
(A) How do we determine the hardness of water by the EDTA method? What happens when hard water is used for industrial applications? /CO1
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(B) Draw a neat labeled phase diagram for the water system and explain areas, curves and triple points in it. What are the advantages of the phase rule? /CO3
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DR. BABASAHEB AMBEDKAR TECHNOLOGICAL UNIVERSITY, LONERE
Mid Semester Examination - March 2019
Course: F.Y.B. Tech Sem: II
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Subject Name: Engineering Graphics
Subject Code: ME104
Max Marks: 20
Date: -
Duration: 1 Hr.
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Instructions to the Students:
- Assume suitable data if necessary and state it clearly.
- Figures to the right indicate full marks.
- Retain all construction lines.
| (Level/CO) | Marks | |
|---|---|---|
| Q.1 Solve any two out of the following: | 5x2=10 | |
| 1. Inscribe a regular heptagon inside a given circle of diameter 80 mm. | CO1,2 | |
| 2. Superscribe a regular octagon about a given circle of 70 mm diameter. | CO1,2 | |
| 3. Explain various types of lines with their illustrations, thickness and applications. | CO1 | |
| Q.2 Draw front view, top view and right-hand side view of the object shown in figure 1 below: | ||
| (Use first angle method of projection) | CO4 | 10 |
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This download link is referred from the post: DBATU B-Tech Last 10 Years 2010-2020 Previous Question Papers || Dr. Babasaheb Ambedkar Technological University
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