Download GTU (Gujarat Technological University) BE/BTech (Bachelor of Engineering / Bachelor of Technology) 2018 Winter 8th Sem New 2182112 Industrial Corrosion Testing Prevention And Control Previous Question Paper
Seat No.: ________ Enrolment No.___________
GUJARAT TECHNOLOGICAL UNIVERSITY
BE - SEMESTER ?VIII (NEW) EXAMINATION ? WINTER 2018
Subject Code: 2182112 Date: 19/11/2018
Subject Name: Industrial Corrosion, Testing, Prevention & Control
Time: 02:30 PM TO 05:00 PM Total Marks: 70
Instructions:
1. Attempt all questions.
2. Make suitable assumptions wherever necessary.
3. Figures to the right indicate full marks.
MARKS
Q.1 (a) Enlist different methods of corrosion prevention. 03
(b) Define corrosion. List the types of corrosion. 04
(c) Discuss the importance of corrosion study based on economic
aspects.
07
Q.2 (a) What is e.m.f. series? Discuss its applicability in corrosion
studies.
03
(b) Multiple Choice Questions:
1) Which of the following is not an example of physical
protection?
a. Greasing
b. Painting
c. Galvanizing
d. Attaching the metal to the negative terminal of a
battery
2) Passivity is due to
a. Higher EMF
b. Lower EMF
c. Oxide film
d. All of the above
3) Corrosion is a chemical reaction that involves
a. The inside of the object changing from an element
to a compound
b. The surface of the object changing from an element
to another element
c. The inside of the object changing from an element
to another element
d. The surface of the object changing from an element
to a compound
4) Which of the following metals would protect iron by
electrons flowing to the iron,
a. Silver
b. Magnesium
c. Tin
d. Copper
04
(c) Discuss the type of corrosion that occurs in riveted vessel. Explain
protection technique against it.
07
OR
(c) Discuss stress corrosion cracking.
07
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1
Seat No.: ________ Enrolment No.___________
GUJARAT TECHNOLOGICAL UNIVERSITY
BE - SEMESTER ?VIII (NEW) EXAMINATION ? WINTER 2018
Subject Code: 2182112 Date: 19/11/2018
Subject Name: Industrial Corrosion, Testing, Prevention & Control
Time: 02:30 PM TO 05:00 PM Total Marks: 70
Instructions:
1. Attempt all questions.
2. Make suitable assumptions wherever necessary.
3. Figures to the right indicate full marks.
MARKS
Q.1 (a) Enlist different methods of corrosion prevention. 03
(b) Define corrosion. List the types of corrosion. 04
(c) Discuss the importance of corrosion study based on economic
aspects.
07
Q.2 (a) What is e.m.f. series? Discuss its applicability in corrosion
studies.
03
(b) Multiple Choice Questions:
1) Which of the following is not an example of physical
protection?
a. Greasing
b. Painting
c. Galvanizing
d. Attaching the metal to the negative terminal of a
battery
2) Passivity is due to
a. Higher EMF
b. Lower EMF
c. Oxide film
d. All of the above
3) Corrosion is a chemical reaction that involves
a. The inside of the object changing from an element
to a compound
b. The surface of the object changing from an element
to another element
c. The inside of the object changing from an element
to another element
d. The surface of the object changing from an element
to a compound
4) Which of the following metals would protect iron by
electrons flowing to the iron,
a. Silver
b. Magnesium
c. Tin
d. Copper
04
(c) Discuss the type of corrosion that occurs in riveted vessel. Explain
protection technique against it.
07
OR
(c) Discuss stress corrosion cracking.
07
2
Q.3 (a) List out different types of corrosion that occur in petrochemical
industries.
03
(b) Explain the failures due to embrittlement in boiler tubes along
with the remedial measures.
04
(c) Describe the corrosion resistant materials that can be used in
power industries.
07
OR
Q.3 (a) Write briefly about corrosion resistant materials for petrochemical
industries.
03
(b) Discuss corrosive environment in fertilizer industries. 04
(c) Discuss one corrosion related failure in petrochemical industries
and suggest remedies.
07
Q.4 (a) List out different corrosion that take place in ship building
industries.
03
(b) Write briefly about corrosion resistant materials for automobile
industries.
04
(c) Discuss case study on fertilizer industries. 07
OR
Q.4 (a) Which types of corrosion frequently occur in automobile
industries?
03
(b) Explain how material selection is helpful to combat corrosion in
petrochemical industries.
04
(c) Discuss case study on failures in ship building industries and
suggest remedies.
07
Q.5 (a) List out different types of corrosion that occur in marine
industries.
03
(b) Discuss the effect of water quality on corrosion rate in thermal
power plants.
04
(c) Explain how material selection is helpful to combat corrosion in
fertilizer industries.
07
OR
Q.5 (a) Discuss corrosion resistant materials for marine industries. 03
(b) Explain sacrificial anode method. 04
(c) Identify corrosion related failures in a gas engine and suggest
remedies.
07
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This post was last modified on 20 February 2020