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SSN College of Engineering, Kalavakkam - 603 110

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Eshanth Raj

This document is a question paper for a Continuous Assessment Test in Principles of Chemical Engineering at SSN College of Engineering, Kalavakkam. It contains three parts with multiple choice and long answer questions. Part A contains 6 multiple choice questions worth 2 marks each on topics like humidity, temperature measurements, fluid flow phenomena and heat transfer modes. Part B contains 3 long answer questions worth 6 marks each on topics like cooling towers, pump power calculations and centrifugal pump operation. Part C contains 2 long answer questions worth 10 marks each, one with sub-questions on heat exchanger temperature profiles and heat loss reduction in a thermos flask, and the other on heat transfer modes and equations.

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SSN College of Engineering, Kalavakkam - 603 110

Uploaded by

Eshanth Raj
49 views2 pages
This document is a question paper for a Continuous Assessment Test in Principles of Chemical Engineering at SSN College of Engineering, Kalavakkam. It contains three parts with multiple choice and long answer questions. Part A contains 6 multiple choice questions worth 2 marks each on topics like humidity, temperature measurements, fluid flow phenomena and heat transfer modes. Part B contains 3 long answer questions worth 6 marks each on topics like cooling towers, pump power calculations and centrifugal pump operation. Part C contains 2 long answer questions worth 10 marks each, one with sub-questions on heat exchanger temperature profiles and heat loss reduction in a thermos flask, and the other on heat transfer modes and equations.

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T2-UCH1201-2020

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This document is a question paper for a Continuous Assessment Test in Principles of Chemical Engineering at SSN College of Engineering, Kalavakkam. It contains three parts with multiple choice and long answer questions. Part A contains 6 multiple choice questions worth 2 marks each on topics like humidity, temperature measurements, fluid flow phenomena and heat transfer modes. Part B contains 3 long answer questions worth 6 marks each on topics like cooling towers, pump power calculations and centrifugal pump operation. Part C contains 2 long answer questions worth 10 marks each, one with sub-questions on heat exchanger temperature profiles and heat loss reduction in a thermos flask, and the other on heat transfer modes and equations.

Copyright:

© All Rights Reserved
Download as PDF, TXT or read online from Scribd
Download as pdf or txt
49 views2 pages

SSN College of Engineering, Kalavakkam - 603 110

Uploaded by

Eshanth Raj
This document is a question paper for a Continuous Assessment Test in Principles of Chemical Engineering at SSN College of Engineering, Kalavakkam. It contains three parts with multiple choice and long answer questions. Part A contains 6 multiple choice questions worth 2 marks each on topics like humidity, temperature measurements, fluid flow phenomena and heat transfer modes. Part B contains 3 long answer questions worth 6 marks each on topics like cooling towers, pump power calculations and centrifugal pump operation. Part C contains 2 long answer questions worth 10 marks each, one with sub-questions on heat exchanger temperature profiles and heat loss reduction in a thermos flask, and the other on heat transfer modes and equations.

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© All Rights Reserved
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SSN College of Engineering, Kalavakkam – 603 110

(An Autonomous Institution, Affiliated to Anna University, Chennai)


Department of Chemical Engineering
Continuous Assessment Test – II
Question Paper

Semester II Date 14/05/2020/ AN

Degree & Branch B.Tech (CHEMICAL) Reg.No

Subject Code & Name UCH1201 - Principles of Chemical Engineering

Time: 90 Minutes Answer All Questions Maximum: 50 Marks

Part – A (6× 2 = 12 Marks)


1. How does the humidity of ambient air affect in the removal of sweat from out
K2 body? Compare with the options below: (a) air with RH of 90%, and (b) air CO 2
with RH of 60%.

K2 2. Compare between “dry-bulb” and “wet-bulb” temperatures. CO 2

K2 3. Compare between “laminar” and “turbulent” flows. CO 2

K1 4. What is the condition for the occurrence of “cavitation” in liquid flow? CO 2

K1 5. Compare between “forced convection” and “free convection”. CO 3

6. Compare between “co-current” and “counter-current” arrangements in heat


K2 CO 3
exchangers.

Part – B (3×6 = 18 Marks)


K3 7. Discuss the working principle and applications of cooling towers. CO 2

8. List down the steps (with suitable equations) involved in estimating the power
K2 required for pumping? Use the following terms in the steps: Bernoulli equation, CO 2
friction factor, pressure drop.

9. With a suitable diagram, explain the principle and operation of centrifugal


K2 CO 2
pump.

1
Part – C (2 × 10 = 20 Marks)

10. Explain the principles of various pressure measuring devices, based on fluid
K2 CO 2
statics.
(OR)
11. Explain the principle of flow measurement with (i) venturimeter, and
K2 CO 2
(ii) rotameter for the steady flow of liquid through a pipeline.

12. (a) Draw the temperature profiles for the following heat exchange processes
happening in double-pipe heat exchangers:
(i) Condensation of a pure vapor by cooling with water.
(ii) Converting liquid water and 1 atm and 25oC to a superheated steam at 1 atm
K3 and 200oC, by contacting with a hot oil. CO 3
(iii) Cooling of water by air. (3 x 2 = 6 marks)

(b) With a schematic of a thermo-flask, discuss the role of various sections of the
flask in reducing the heat transfer to/from the flask contents. (4 marks)
(OR)
13. Discuss about the various modes of heat transfer, with their fundamental
K2 CO 3
equations, and the essential properties of materials governing them.

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