Download GTU BE/B.Tech 2017 Winter 7th Sem New 2173613 Specialty Pigments And Recent Development In Pigment Technology Department Elective Vii Question Paper

Download GTU (Gujarat Technological University) BE/BTech (Bachelor of Engineering / Bachelor of Technology) 2017 Winter 7th Sem New 2173613 Specialty Pigments And Recent Development In Pigment Technology Department Elective Vii Previous Question Paper

1
Seat No.: ________ Enrolment No.___________

GUJARAT TECHNOLOGICAL UNIVERSITY

BE - SEMESTER ?VII (NEW) EXAMINATION ? WINTER 2017
Subject Code: 2173613 Date: 02/11/2017

Subject Name: Specialty Pigments & Recent development in Pigment
Technology(Department Elective - VII)

Time: 10:30 AM TO 01:00 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) Define the following:
(i) Flop index (ii) Colour flop (iii) Salinity
03
(b) Discuss the term refractive materials with respect to specialty
pigments.
04
(c) What are the pearl effect pigments? Discuss the variables
controlling the pearl effect.
07

Q.2 (a) Explain the following terms:
(i) Cluster (ii) Colloids (iii) Nanoparticle
03
(b) Write a note on: Sacrificial Pigments 04
(c) Explain the commercial processes of manufacturing of Titanium
dioxide- Mica based effect pigments.
07
OR
(c) Explain the behavior of a biocide-based antifouling system
exposed to sea water with the help of schematic diagram.
07
Q.3 (a) How do you differentiate active and barrier pigments? 03
(b) Discuss the two types of underwater antifouling coatings. 04
(c) Explain the Paint reconditioner & thinning mixer with its
diagrammatical representation.
07
OR
Q.3 (a) How does the Nanoscale materials are divided into three
categories.
03
(b) Explain the following terms with respect to antifouling coatings:
(i) Temperature (ii) P
H

04
(c) Explain the following terms:
(i) Refractive indices of material (ii) Lightness flop
07
Q.4 (a) Write a note on: Aluminium flake pigments. 03
(b) Discuss the properties of the Nanomaterials. 04
(c) Explain with schematic diagram of the basic effect of
anticorrosive coatings and inhibitive pigments in controlling
corrosion of a metallic substrate.
07
OR
Q.4 (a) How does the anticorrosive pigments affected on performance of
protective coatings?
03
(b) Explain the model used to explain the flake orientation during film
formation.
04
(c) What is meant by Pigment tinters? Discuss the formulation of
pigment tinters with role of each ingredient.


07
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1
Seat No.: ________ Enrolment No.___________

GUJARAT TECHNOLOGICAL UNIVERSITY

BE - SEMESTER ?VII (NEW) EXAMINATION ? WINTER 2017
Subject Code: 2173613 Date: 02/11/2017

Subject Name: Specialty Pigments & Recent development in Pigment
Technology(Department Elective - VII)

Time: 10:30 AM TO 01:00 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) Define the following:
(i) Flop index (ii) Colour flop (iii) Salinity
03
(b) Discuss the term refractive materials with respect to specialty
pigments.
04
(c) What are the pearl effect pigments? Discuss the variables
controlling the pearl effect.
07

Q.2 (a) Explain the following terms:
(i) Cluster (ii) Colloids (iii) Nanoparticle
03
(b) Write a note on: Sacrificial Pigments 04
(c) Explain the commercial processes of manufacturing of Titanium
dioxide- Mica based effect pigments.
07
OR
(c) Explain the behavior of a biocide-based antifouling system
exposed to sea water with the help of schematic diagram.
07
Q.3 (a) How do you differentiate active and barrier pigments? 03
(b) Discuss the two types of underwater antifouling coatings. 04
(c) Explain the Paint reconditioner & thinning mixer with its
diagrammatical representation.
07
OR
Q.3 (a) How does the Nanoscale materials are divided into three
categories.
03
(b) Explain the following terms with respect to antifouling coatings:
(i) Temperature (ii) P
H

04
(c) Explain the following terms:
(i) Refractive indices of material (ii) Lightness flop
07
Q.4 (a) Write a note on: Aluminium flake pigments. 03
(b) Discuss the properties of the Nanomaterials. 04
(c) Explain with schematic diagram of the basic effect of
anticorrosive coatings and inhibitive pigments in controlling
corrosion of a metallic substrate.
07
OR
Q.4 (a) How does the anticorrosive pigments affected on performance of
protective coatings?
03
(b) Explain the model used to explain the flake orientation during film
formation.
04
(c) What is meant by Pigment tinters? Discuss the formulation of
pigment tinters with role of each ingredient.


07
2

Q.5 (a) Write a note on: Filling 03
(b) Discuss about ultrasound dispersion. 04
(c) Explain the different types of the strainers with its diagram. 07
OR

Q.5 (a) Write a note on: Pigment tinters 03
(b)
Discuss the cavitation mechanism with the suitable examples.
04
(c) Explain the micaceous iron oxide pigment in detail. 07

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