Download GTU (Gujarat Technological University) BE/BTech (Bachelor of Engineering / Bachelor of Technology) 2019 Winter 8th Sem New 2180508 Solid Fluid Operations Previous Question Paper
Seat No.: ________ Enrolment No.___________
GUJARAT TECHNOLOGICAL UNIVERSITY
BE - SEMESTER ? VIII (New) EXAMINATION ? WINTER 2019
Subject Code: 2180508 Date: 25/11/2019
Subject Name: SoliD-Fluid Operations
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) Define: (1) filtration (2) clarification (3) cyclone efficiency 03
(b) Differentiate between constant pressure and constant rate filtration. 04
(c) Explain float and sink method and differential method with suitable
Diagram ?
07
Q.2 (a) Define (1) Minimum fluidization velocity (2) filtration (3)
Sedimentation
03
(b) Differentiate between particulate and bubbling fluidization. 04
(c) Explain the working, construction and application of plate and frame
filter press.
07
OR
(c) Explain the working, construction and application of Rotary drum
filter.
07
Q.3 (a) Define (1) Froude no (2) swirling (3) Power no 03
(b) Differentiate between paddle and propeller 04
(c) Define fluidization. Explain the condition of or fluidization with
suitable diagram.
07
OR
Q.3 (a) Define (1) seeding (2) nucleation (3) super saturation in term of
crystallization.
03
(b) Differentiate between static mixture and intensive mixture. 04
(c) What is the precaution required for the selection of agitation? How to
scale-up the agitation vessel?
07
Q.4 (a) Explain the factor affecting crystallization. 03
(b) Differentiate between cyclone and hydro cyclone . 04
(c) Explain the drying curve with suitable sketch? 07
OR
Q.4 (a) Define (1) leaching (2) drying (3) fluidization. 03
(b) Differentiate between packed bed and fluidized bed reactor 04
(c) Classify the equipments for solid conveying and explain chain
conveyer in details.
07
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1
Seat No.: ________ Enrolment No.___________
GUJARAT TECHNOLOGICAL UNIVERSITY
BE - SEMESTER ? VIII (New) EXAMINATION ? WINTER 2019
Subject Code: 2180508 Date: 25/11/2019
Subject Name: SoliD-Fluid Operations
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) Define: (1) filtration (2) clarification (3) cyclone efficiency 03
(b) Differentiate between constant pressure and constant rate filtration. 04
(c) Explain float and sink method and differential method with suitable
Diagram ?
07
Q.2 (a) Define (1) Minimum fluidization velocity (2) filtration (3)
Sedimentation
03
(b) Differentiate between particulate and bubbling fluidization. 04
(c) Explain the working, construction and application of plate and frame
filter press.
07
OR
(c) Explain the working, construction and application of Rotary drum
filter.
07
Q.3 (a) Define (1) Froude no (2) swirling (3) Power no 03
(b) Differentiate between paddle and propeller 04
(c) Define fluidization. Explain the condition of or fluidization with
suitable diagram.
07
OR
Q.3 (a) Define (1) seeding (2) nucleation (3) super saturation in term of
crystallization.
03
(b) Differentiate between static mixture and intensive mixture. 04
(c) What is the precaution required for the selection of agitation? How to
scale-up the agitation vessel?
07
Q.4 (a) Explain the factor affecting crystallization. 03
(b) Differentiate between cyclone and hydro cyclone . 04
(c) Explain the drying curve with suitable sketch? 07
OR
Q.4 (a) Define (1) leaching (2) drying (3) fluidization. 03
(b) Differentiate between packed bed and fluidized bed reactor 04
(c) Classify the equipments for solid conveying and explain chain
conveyer in details.
07
2
Q.5 (a) Define and enlist different conveyers. 03
(b)
A rotary filter, operating at 0.03 Hz, filters at the rate of 0.0075 m
3
/s.
Operating under the same vacuum and neglecting the resistance of the
filter cloth, at what speed must the filter be operated to give a filtration
rate of 0.0160 m
3
/s?
04
(c) Explain the mechanism and working of moving bed reactor. 07
OR
Q.5 (a) Write in brief the use of conveyer in chemical industries. 03
(b) Solid spherical particles of coffee extract from a dryer having a
diameter of 400 ?m are falling through air at a temperature of 422 K.
The density of the particles is 1030 kg/m
3
. Calculate the terminal
settling velocity and the distance of fall in 5 s. The pressure is101.32
kPa.
Data: ? air =0.838 kg/m
3
, ? air =2.37*10
-5
kgm
-1
s
-1
04
(c) Write the application of fluidization in chemical industry. 07
*************
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This post was last modified on 20 February 2020