Download GTU BE/B.Tech 2018 Winter 6th Sem New 2160501 Mass Transfer Operation Ii Question Paper

Download GTU (Gujarat Technological University) BE/BTech (Bachelor of Engineering / Bachelor of Technology) 2018 Winter 6th Sem New 2160501 Mass Transfer Operation Ii Previous Question Paper

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1
Seat No.: ________ Enrolment No.___________

GUJARAT TECHNOLOGICAL UNIVERSITY

BE - SEMESTER ?VI (NEW) EXAMINATION ? WINTER 2018
Subject Code: 2160501 Date:16/11/2018

Subject Name: Mass Transfer Operation - II

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) Explain separation in Enriching and Stripping section of continuous
rectification column.
03
(b) Define : Reflux ratio, Total reflux, minimum reflux 04
(c) Explain McCabe and Thiele method for tray calculation. 07

Q.2 (a) Explain feed tray location. 03
(b) Draw the location of q line for various thermal condition of feed. 04
(c) Derive equation of q-line. 07
OR
(c) Describe Azeotropic distillation briefly. 07
Q.3 (a) Define : Molal Absolute humidity, Grosvenor humidity, Dry-bulb
temperature.
03
(b) Describe types of cooling tower shortly. 04
(c) Derive the equation of adiabatic saturation curve. 07
OR
Q.3 (a) Define : Relative saturation, Percentage saturation, Dew point 03
(b) Describe spray chambers shortly. 04
(c) Derive the expression for wet bulb depression. 07
Q.4 (a) Define : Moisture content on wet basis, moisture content on dry basis,
bound moisture.
03
(b) Describe drum dryer shortly. 04
(c) Explain liquid diffusion within the solid. 07
OR
Q.4 (a) Define : Unbound moisture, equilibrium moisture, free moisture. 03
(b) Classify rotary dryer and explain any one shortly. 04
(c) Explain typical rate of drying curve under constant drying conditions. 07
Q.5 (a) Explain physical adsorption. 03
(b) Explain adsorption from concentrated solutions. 04
(c) Describe adsorption wave briefly. 07
OR

Q.5 (a) Explain chemisorptions. 03
(b) Explain adsorption of solute from dilute solutions. 04
(c) Describe working of pressure swing absorber. 07

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