Download DBATU B.Tech 2019 Oct-Nov Chemical Engineering-CHEM 3rd Sem Advanced Engineering Chemistry Question Paper

Download DBATU (Dr. Babasaheb Ambedkar Technological University) B Tech 2019 Oct-Nov (Bachelor of Technology) Chemical Engineering-CHEM 3rd Sem Advanced Engineering Chemistry Question Paper

91? Charo .
DR. BABASAHEB AMBEDKAR TECHNOLOGICAL UNIVERSITY, LONERE
Mid Semester Examination ? OCT. 2019
Course: B. Tech in Chemical Engineering Sem: III
Subject Name: Advanced Engg. Chemistry Subject Code: BTBSC305
Max Marks: 20 Date: 9"?, ?9 Duration: 1 Hr.
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 ?ill marks.
Assume suitable data if required
MPPNF
(Level/CO) Marks
Q. 1 Multiple choice questions 6
? 1. Wet corrosion is also called as,
A. Chemical corrosion B. Oxidation corrosion C. Electrochemical corrosion
D. Liquid metal corrosion ' ' ?
2. Smaller the grain size, corrosion is
A. Greater . B. Lower C. Constant D. Does not affected
3. A polymer made of identical monomer units is called, ' 7
A. Linear polymer B. Homo polymer C. Branched Polymer D.
COROIYmer ' , , ' ' (01,(02.(03.
4. Wh1ch of the followmg polymer 1s obtained by condensation polymerization?
A. Te?on ? B Rubber C. Styrene D. Nylon 6:6
5. A photochemical reaction is,
A. Accompanied with emission of l1ght B. Catalyzed by light C. Initiated by
light D All of the above
6. When two molecules reacted or formed per photon of light absorbed, then the
quantum yield of such reaction is,
A. One B. Less than one C. Two D. None of above
Q.2 Solve Any Two of the following. 3 x 2
(A) Discuss the importance Of design and material selection in controlling corrosion. (O1 .
(B) What is meant by quantum yield of photochemical reaction? Discuss it. ?107.
(C) Explain the functions of any three constituents used in compounding of plastics. C03 .
Q. 3 Solve Any One of the following. - . , 8
(A) What is electrochemical corrosion? Explain in brief mechanism of electrochemical CO1 .
corrosion by evolution of hydrogen and absorption of oxygen
(B) What is plastic? Bring out the differences between thermoplastic and thermosetting (05
plastics.
*** End ***