Download DBATU B.Tech 2019 March 2nd Sem Engineering Chemistry Question Paper

Download DBATU (Dr. Babasaheb Ambedkar Technological University) B Tech (Bachelor of Technology) 2019 March 2nd Sem Engineering Chemistry Question Paper

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Q.2
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DR. BABASAHEB AMBEDKAR TECHNOLOGICAL UNIVERSITY, LONERE
Mid Semester Examination ? March 2019
Course: - : First Year 8. Tech(Group- A Chem, Mech, Civil) Sem: II
Subject Name: Engineering Chemistry ' Subject Code: BTBS 202
Max Marks: 20 Date:- 12/03/2019
Durationt-l l-Ir.
Instructions to the students:
1. Do not write anything on question paper
2. Neat and labeled diagram must berdrawn whenever necessary.
3. Use of non programmable calculator is allowed.
4. Figures to the right indicate full marks.
5. Assume suita ble data if required
6. All questions are compulsory ?
(Level/CO) Marks
Attempt the following Questions H 6
1. If degree of freedom for any system is zero, the system is said to be ?303
a) . Zero Vari?nt b) Divarient c)h1varicnt d) Both a & c '
2. For the given system degree of freedom is, ?303
NaCl ?1?-?_?_ NaCl ? H20
SOlid SOlutiOl?] Vapour
a)1b)2c)3d)4 ?
? 3. Phase diagram of sulphur system has ....... triple point(s). _ [?03
a)4 b)3 c) 2 d)1
?4. Exhausted zeolite can be regenerated by using "C01
a) HCl b) NaOH 0) NaCl (1) All of these
5. Sodium Zeolite can be represented as 'C01
a) C820.S,1203.XN320.yH20 b) Mg20.A1203.X8102.yH20
b) 8120A1203. xNa20.yH20 d) Na20.A1203. XSiOz.yH20
6. Hardness of water is usually expressed in equivalent with v ?301
a) Ca(OH)2 b) CaC12 c) CaO d) CaC03
Solve Any Two of the following. 2 3 X 2
What is condensed phase rule? When it is applied? ? i , -?C03
[on exchange methdd?is more adventageous than zeolite method, give your "?/C01
revnew.
Define the term Phase, Invaria nt system and temporary hardness - ?C01? C03
Solve AnyAOne of the following. ? 8
-HOW We determine hardness of water by EDTA method? What happen when ?301
? hard water is used for industrial applications?
Draw neat labeled phase diagram for water system and explain areas, curves ? " ??03
and tripie points in it. What are the advantages of phase rule?
*ki: End ***

Mid Semester Examination ? March 2019
Course: F.Y.B. Tech Sem: 11
Subject Name: Engineering Graphics .Subject Code: ME104
? Max Marks: 20 Date:- Duration:- 1 Hr.
DR. BABASAHEB AMBEDKAR TECHNOLOGICAL UNIVERSITY, LONERE
Instructions to the Students:
1. Assume suitable data if necessary and state it clearly.
2. Figures to the right indicate full marks.
3. 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 C01,2
. diameter 80 mm.
2. Super scribe a regular octagon about a given circle of C01,2
70 mm diameter..
3. Explain various types of lines with their illustrationg, C01
thickness and applications.
Q.2 Draw front view, top view and right hand side view of the object shown CO4 10
in ?gure 1 below:- (Use ?rst angle method of projection)
Figure 1