Name of the University : Mahatma Gandhi University
Department : Chemical Engineering
Degree : B.Tech
Subject Code/Name : PO 010 504 Chemical Engineering – II
Sem : V
Website : mgu.ac.in
Document Type : Model Question Paper
Download Model/Sample Question Paper : https://www.pdfquestion.in/uploads/mgu.ac.in/5373-PO504.doc
Chemical Engineering Model Question Paper :
B.TECH Degree Examination :
Fifth semester :
PO 010 504 Chemical Engineering – II :
Time : Three Hours
Maximum : 100 Marks
Related : Mahatma Gandhi University Polymer Processing I B.Tech Model Question Paper : www.pdfquestion.in/5372.html
PART A :
Answer all questions :
1. What is thermal conductivity?
2. Explain the concept of thermal diffusivity.
3. What is boiling point elevation?
4. Explain the modes of heat transfer.
5. Define transient conduction.
(5×3 = 15marks)
PART B :
Answer all questions :
6. Explain the critical and optimum thickness of insulation for sphere and cylinder.
7. What is the validity of lumped capacitance analysis?
8. What is the empirical correlation for natural convection heat transfer?
9. What are the classifications of heat exchangers?
10. Define the terms capacity, economy and single effect evaporators.
(5×5 = 25marks)
PART C :
Answer all questions :
11. Explain the heat conduction flow through a sphere, cylinder and plane wall. (12)
OR
12. (a) A rod of 3cm diameter and 20cm length is maintained at 100 degree celsius at one end and 10 degree Celsius at the other end. These temperature distributions are attainted when there is a heat flow rate of 6watts. If cylindrical surface of the rod is completely insulated, determine the thermal conductivity of the rod material. (8)
(b) What are thermal resistance and its effect on cylindrical surface? (4)
13. Derive Prandtl analogy between beat and momentum transfer.
OR
14. Calculate the heat transfer coefficient for water at 330 K flowing through a 15mm inside diameter pipe with a velocity of 1m/s. The tube wall temperature is 310 K. The properties of water at 320 K are viscosity = 0.603 centipose, thermal conductivity = 0.63 W/mK, specific heat = 4.2KJ/kg K and density = 1000 kg/m3.
15. A countercurrent heat exchanger is used to cool 1.25 kg/s of C6H6 (Cp=1.9 kJ/kg K) from 350-300 K with water available at 290 K. In the heat exchanger tubes of 22mm I.D. and 25 mm O.D. are used and water passes through the tube. The film coefficient of water and benzene are o.85 and 1.75 W/m2k respectively scale factors are negligible. What is the tube length required if the temperature of water is not to exceed 329 K. Thermal conductivity of material of tube is 45 W/mk.
OR
16. Derive an expression for log mean temperature difference indicating the assumptions involved. Assume overall heat transfer coefficient is constant.
17. Describe the different methods of feeding a multiple effect evaporator system citing advantages and disadvantages of each.
OR
18. A dilute solution is concentrated from 10% solid to 50% solid at the rate of 500kg solid per hour. The feed is available at 700 C and steam is supplied at 3 bar. The evaporator operates at an absolute pressure of 13.3 KPa. Specific heat of a solution is 3.7 kJ/kg K, specific heat of the product = 3.1 kJ/kg/K, overall heat transfer coefficient = 580 W/m2K. Neglect boiling point elevation. Calculate (i) steam consumption (ii) the heat transfer area.
19. (a)What is the significance of Biot number and Fourier number? (4)
(b) Explain about transient conduction. (6)
(c) What is fin efficiency? (2)
OR
20. With neat sketches, describe the different types of fins. (12)
Industrial Engineering :
Time : Three Hours
Maximum : 100 Marks
Answer all questions
Part A :
Each question carries 3 Marks
1. What are the functions of an industrial Engineer?
2. Describe Product and Process
3. What do you mean by prototype production?
4. List out the criteria for selection of equipment
5. Brief about micro motion study and Therblings
Part B :
Each question carries 5 Marks
6. Explain about Capital budgeting
7. Describe the plant layout and material handling
8. Brief Manufacture Vs Purchase
9. How can you determine economic life of a machine in an industry?
10. Explain price fixation with an example
Part C :
Answer either (a) or (b) of each question
Each question carries 12 Marks
11. (a) Define Capital. Explain different types of capital. With a suitable example brief the methods of raising capital.
or
(b) What do you mean by investment and explain various types of investments with suitable example.
12. (a) Write notes on lighting, temperature, noise, dust, ventilation in an industry. Explain their environmental defects and control methods.
or
(b) Explain various types of material handling equipment, selection and application
13. (a) Explain with details
(i) Human factors in design
(ii) Value Engineering
or
(b) Discuss the selection of materials and processes in product development
14. (a) What do you mean by maintenance? Briefly discuss and compare various types of maintenance
or
(b) With a suitable example explain the term depreciation. What is the criterion for selection of equipment?
15. (a) Explain accounting and costing and its various functions
or
(b) Discuss
(i) ROI
(ii) Sources of finance
(iii) Trial balance