Download GTU (Gujarat Technological University) BE/BTech (Bachelor of Engineering / Bachelor of Technology) 2018 Winter 6th Sem New 2161401 Food Process Equipment Design Previous Question Paper
1
Seat No.: ________ Enrolment No.___________
GUJARAT TECHNOLOGICAL UNIVERSITY
BE - SEMESTER ?VI (NEW) EXAMINATION ? WINTER 2018
Subject Code:2161401 Date:16/11/2018
Subject Name:Food Process Equipment Design
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
Q.1 (a) With the neat sketch of psychometric chart explain, ?how the recirculation of air
in a dryer affect its performance??
03
(b) Differentiate:
(i) Pressure vessel and closed container
(ii) Thin and thick wall pressure vessel
04
(c) Describe the classification of the agitators used in the food processing? 07
Q.2 (a) Explain the application of scrap surface evaporator in food industry? 03
(b) Write a note on Major and subsidiary loads on pressure vessel? 04
(c) Explain the need of safety factor in a pressure vessel?
Calculate the safe stress for high alloy stainless steel operated at 62
o
C with randomly
checked lap joint and safety factor of 2.2. The material has allowable stress at 30
and 120
o
C as 190 and 120 N/mm
2
respectively. Lap joint efficiency and joint
checking efficiency may be taken as 75% each.
02
05
OR
(c) What is LMTD? Where it is applicable? What is its significance? 07
Q.3 (a) Discuss possible material hazards in the dairy industry? How it can be checked? 03
(b) Compare single effect and multi effect evaporator? 04
(c) How the performance of the non-mixing type cross flow heat exchanger is
calculated?
07
OR
Q.3 (a) Describe probable process hazards in the bakery industry? 03
(b) Explain the selection process of granular food product handling system? 04
(c) Discuss different type of paddle agitators, their use and limitations? 07
Q.4 (a) Why it is important to keep corrosion allowance during designing? 03
(b) Differentiate forward and backward feed system in a heat exchanger? 04
(c) What is the purpose of Chevron plate? Explain with sketch 07
OR
Q.4 (a) Explain the Duhring lines with neat sketch? 03
(b) With neat sketch explain the working of cone type agitators? 04
(c) With neat sketch explain LSU dryer and its time management? 07
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1
Seat No.: ________ Enrolment No.___________
GUJARAT TECHNOLOGICAL UNIVERSITY
BE - SEMESTER ?VI (NEW) EXAMINATION ? WINTER 2018
Subject Code:2161401 Date:16/11/2018
Subject Name:Food Process Equipment Design
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
Q.1 (a) With the neat sketch of psychometric chart explain, ?how the recirculation of air
in a dryer affect its performance??
03
(b) Differentiate:
(i) Pressure vessel and closed container
(ii) Thin and thick wall pressure vessel
04
(c) Describe the classification of the agitators used in the food processing? 07
Q.2 (a) Explain the application of scrap surface evaporator in food industry? 03
(b) Write a note on Major and subsidiary loads on pressure vessel? 04
(c) Explain the need of safety factor in a pressure vessel?
Calculate the safe stress for high alloy stainless steel operated at 62
o
C with randomly
checked lap joint and safety factor of 2.2. The material has allowable stress at 30
and 120
o
C as 190 and 120 N/mm
2
respectively. Lap joint efficiency and joint
checking efficiency may be taken as 75% each.
02
05
OR
(c) What is LMTD? Where it is applicable? What is its significance? 07
Q.3 (a) Discuss possible material hazards in the dairy industry? How it can be checked? 03
(b) Compare single effect and multi effect evaporator? 04
(c) How the performance of the non-mixing type cross flow heat exchanger is
calculated?
07
OR
Q.3 (a) Describe probable process hazards in the bakery industry? 03
(b) Explain the selection process of granular food product handling system? 04
(c) Discuss different type of paddle agitators, their use and limitations? 07
Q.4 (a) Why it is important to keep corrosion allowance during designing? 03
(b) Differentiate forward and backward feed system in a heat exchanger? 04
(c) What is the purpose of Chevron plate? Explain with sketch 07
OR
Q.4 (a) Explain the Duhring lines with neat sketch? 03
(b) With neat sketch explain the working of cone type agitators? 04
(c) With neat sketch explain LSU dryer and its time management? 07
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2
Q.5 (a) What is Regeneration? 03
(b) ?In turbine agitator, high speed of agitator shaft leads improper mixing.? Why? 04
(c) What are the roles of baffles in agitator? What are its size limitations? 07
OR
Q.5 (a) What is significance of power number 03
(b) With neat sketch explain PHE? 04
(c) Explain the U- arrangement; Z- arrangement and 2x4/1x8 arrangements in plate heat
exchanger with diagram?
07
*************
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This post was last modified on 20 February 2020