Environmental Engineering

SATHYABAMA UNIVERSITY

(Established under section 3 of UGC Act, 1956)

Course & Branch: B.E/ B. Tech – Common to ALL Branches

Title of the paper: Environmental Engineering

Semester: I/II                                                              Max. Marks: 80     

Sub.Code: 4ET201B/5ET201B/6C0012                           Time: 3 Hours

Date: 13-05-2008                                                         Session: FN       

                                                PART – A                       (10 x 2 = 20)

Answer All the Questions

1. What is the scope of environmental studies?    

 

2.     What are the forest resources?

3.     Define eutropication.

4.     What are decomposers?

5.     Define BOD and COD.

6.     What is a natural hazard?

7.     What is green house effect?

8.     Write a short note on waste land reclamation.

9.     Define human Right.

10.   What are the main components of family welfare programme?

PART – B                       (5 x 12 = 60)

Answer All the Questions

11.   Discuss in detail the environmental effects of extracting and       using mineral resources

(or)

12.   Comment on the growing need for energy and describe the renewable and non renewable resources.

13.   (a) Explain the structure and functions of ecosystem

        (b) Discuss briefly the food chains and trophic levels.

(or)

14.   Discuss in detail the In situ Ex situ conservation of biodiversity

15.   Explain the causes, effects and control of air pollution

(or)

16.   Describe the causes and control measures of urban and industrial         waste.

17.   What are the features of the Wild life protection Act?

(or)

18.   Discuss in detail water conservation, rain water harvesting and   water shed management.

19.   How do the population profiles, fertility rates and population         projection of developed countries differ from those of developing         countries?

(or)

20. Explain the role of information technology in environment and    human life. 

Programming in 'C'

SATHYABAMA UNIVERSITY

(Established under section 3 of UGC Act, 1956)

Course & Branch: B.E /B.Tech – Common to ALL Branches

Title of the paper: Programming in 'C'

Semester: I/II                                                                 Max. Marks: 80     

Sub.Code: 4ET115/4ET206/5ET115/5ET206/6C0007 Time: 3 Hours

Date: 21-05-2008                                                            Session: FN    

                                                PART – A                       (10 x 2 = 20)

Answer All the Questions

1.     What is conditional operator?

 

2.     What is preprocessor directive? Give example.

3.     What is the use of Continue Statement?

4.     Write a C program to check whether the given number is divisible by 7 or not?

5.     What is meant by an Array?

6.     Mention the string commands which is used for copy, concatenate and compare two strings.

7.     What is pointer?

8.     What is Union?

9.     How to open and close in file in C?

10.   Mention the advantage of Random access file over sequential access file.

PART – B                       (5 x 12 = 60)

Answer All the Questions

11.   Explain the structure of a C program with example.

(or)

12.   Mention all the operators available in C.

13.   What is the difference between entry. Controlled loop and exit controlled loop. Explain each with a suitable program.

(or)

14.   Write a C program to check whether the given number is Armstrong or not.

15.   What is Recursion? Write a ‘C’ program to find the factorial of a given number using Recursion.

(or)

16.   Write a C program to sort the names in alphabetical order.

17.   What is Structure? Mention the difference between structure and union. Explain each with a suitable example.

(or)

18.   Write notes on

        i) pointers and functions.

        ii) Pointers and arrays

19.   Write a file program in C for the student database.

(or)

20.   What are command line arguments? Explain in detail.

Computer Programming

Course & Branch: B.E/ B. Tech – IT/MECH/ETCE/ M&P/AERO/ CIVIL/BIN/BTE/BME

Title of the paper: Computer Programming

Semester: I                                                                   Max. Marks: 80     

Sub.Code: 3ET105/5ET105/6C0011                          Time: 3 Hours

Date: 15-05-2008                                                          Session: AN     

                                                PART – A                       (10 x 2 = 20)

Answer All the Questions

1.     Define booting.

 

2.     What is the use of grep command in Unix?

3.     What is a template?

4.     What is word processor?

5.     List out the different types of charts you can create with MS Excel.

6.     Define the term Database.

7.     What is the command to modify the structure of database?

8.     How do you create labels in Foxpro?

9.     What is conditional operator?

10.   What is meant by data types? Mention the data type supported by C.

PART – B                       (5 x 12 = 60)

Answer All the Questions

11.   List out various file and directory commands with options.

(or)

12.   (a)    How do you create batch and system files.                    (7)

        (b)   Write short notes on MS Windows.                               (5)

13.   What are the various formatting options supported by MS Word? Explain with examples.

(or)

14.   (a)    How do you create a table in MS Word?

        (b)   How do you make your presentation more animated?

15.   (a)    Write note on spread sheet components.

(b)   How do you create a bar chart for the following data using
        Ms Excel?

Subject	Male (Pass%)	Female (Pass%)
OOPS	12%	32%
Compiler Design	32%	45%
Computer Networks	13%	41%

(or)

16.   How do you create forms and reports in MS Access?

17.   How is sorting and indexing of database done in Foxpro?

(or)

18.   How do you create and maintain database in Foxpro?

19.   (a)    Write a program to sort a set of numbers in C.              (8)

        (b)   Write notes on any three operators in C.                               (4)

(or)

20.   Write notes on for, while and do control structures in C.

AE 2202 AERO ENGINEERING THERMODYNAMICS FIRST D UNIT EXAMINATIO

B.E./B.TECH.DEGREE FIRST UNIT EXAMINATIONS, JULY - 2012

REGULATIONS 2008

SECOND YEAR / THIRD SEMESTER

AE 2202 AERO ENGINEERING THERMODYNAMICS

AERONAUTICAL ENGINEERING

Time: 90 Mins                                     Date:   20.07.2012                              Maximum:50 marks

ANSWER ALL QUESTIONS

                                                                  PART – A                        (7 x 2 =14 marks)

1.      What is meant by Macroscopic approach and Microscopic approach in thermodynamics?

2.      What is meant by open system and closed system? Give an example.

3.      What is meant by control volume and control surface?

4.      Differentiate Intensive and Extensive properties

5.      Define continuum.

6.      What is Quasi – Static process?

7.      What is meant by point function and Path function?

                                                      PART – B                       (3 x 12 =36 marks)

8.      With a neat sketch explain the working of 2-Stroke Diesel Engine.

9.      With a neat sketch explain the working of 4-Stroke spark ignition engine.

10.  With a neat sketch explain the working of vapour absorption refrigeration system.

AE 2202 AERO ENGINEERING THERMODYNAMICS SECOND UNIT EXAMINATION

B.E./B.TECH.DEGREE SECOND UNIT EXAMINATIONS, AUGUST - 2012

REGULATIONS 2008

SECOND YEAR / THIRD SEMESTER

AE 2202 AERO ENGINEERING THERMODYNAMICS

AERONAUTICAL ENGINEERING

Time: 90 Mins                                     Date:   08.08.2012                              Maximum:50 marks

ANSWER ALL QUESTIONS

                                                                  PART – A                        (9 x 2 =18marks)

1.     What is meant by reversible and irreversible process?

2.     Explain Zeroth Law and first law of thermodynamics?

3.     What are the limitations of first law of thermodynamics?

4.     Why Carnot cycle cannot be realized in practical?

5.     What are the important characteristics of entropy?

6.     Define the term enthalpy and entropy

7.     What is perpetual motion machine of first kind and second kind?

8.     State the Kelvin – Plank and Clausius statement of second law of thermodynamics

9.     State Carnot’s theorem. What are the Corollaries of Carnot theorem?

                                                      PART – B                       (2 x 16 =32 marks)

ANSWER ANY TWO QUESTIONS

10.                        Derive the relationship between P-V-T, work done, change in internal energy , Heart transfer, change in enthalpy change in entropy and plot the P-V & T-S diagram for isentropic process.

11.                        Air is contained in a cylinder fitted with a frictionless piston. Initially the cylinder contains  0.5m³ of air at 150 kPa, 20°C. The air is then compressed reversibly according to the relation  PVⁿ = constant, until the final pressure is 600 kPa, at which point the temperature is 120°C.  For this process, determine,

                   (i) The polytropic exponent n

                   (ii) The final volume of air

                   (iii) The work done on the air and the heat transfer and

                   (iv) The net change in entropy. 

12.                        Air at a temperature of 15⁰C passes through a heat exchanger at a velocity of 30 m/s where its temperature is raised to 800⁰C. It then enters a turbine with the same velocity of 30 m/s and expands until the temperature falls to 650⁰C. On leaving the turbine, the air is taken at a velocity of 60 m/s to a nozzle where it expands until the temperature has fallen to 500⁰C. If the air flow rate is 2 kg/s, calculate :

          (i) The rate of heat transfer to the air in the heat exchanger.

          (ii) The power output from the turbine assuming no heat loss and

          (iii) The velocity at exit from the nozzle, assuming no heat loss.

Take the enthalpy of air as h = Cp.T, where Cp is the specific heat equal to 1.005 kJ/kg–K and ‘‘T’’ the temperature.