1.a) Explain any six types of cement along with their uses.
b) Explain the importance and effect of water cement ratio in concrete.
c) Explain the term workability.
2.a) Explain the different type of bricks based on shape.
b) Describe the different factors affecting workability of concrete.
3.a) Describe the different tests on bricks.
b) What are the requirements of good aggregrate.
c) Explain with sketches the different steel sections using in construction industry.
4. a) Explain various thermodynamic systems with their examples
b) Distinguish between 1.process and cycle
2. work and energy.
3. extensive properties and intensive properties. Give
5. Derive steady flow energy equation (SFEE) that applied to open system.
6. a) State and explain first law of thermodynamics and its limitations.
b) State and explain zeroth law of thermodynamics. How it could be used for
7. a) State and explain Kelvinplank statement and Clausius statements.
b) A domestic food freezer is to be maintained at a temperature of -15degree Celsius. The ambient temperature is 30degree Celsius. If the heat leaks at a continous rate of 1.75KJ/s. Find the power required to pump this heat out continuously
1a. With neat sketches explain any six structural steel sections used in construction
b. What are the requirements of good quality aggregates?
2a. Write notes on any six types of cement
b. Explain the Indian Standard Classification of bricks
3a. Explain the conditions in which pile foundations is adopted
b. Compare English bond and Flemish bond
4 . Draw the plan of the alternate courses of a 1 1/2 brick thick English bonnd wall. Also draw the elevation. Make sketches of the typical bricks used and mark their dimensions
5a. Explain the main principles of surveying
b. With the help of sketches explain the uses of cross-staff and optical square
c. Explain any one method of indirect ranging
6 . The following consecutive readings were taken with the help of a Dumpy level. 2.550, 3.760, 3.900, 2.100, 1.870, 1.550, 1.250, 2.540, 2.050, 3.150. The instrument was shifted after the third and seventh readings. The first reading was taken on the staff held on the bench mark of reduced levels 100.000m. Enterthe above readings in a level book form and work out the reduced levels of the point by height of collimation method
1a. Derive an expression for work done in an adiabatic process
b. A closed vessel containing 2Kg of carbon dioxide is at a temperature 20 degree celsius and pressure of 0.7 bar. Heat is supplied to the vessel till the gas acquires a pressure of 1.4 bar. Calculate: final temperature, work done on or by the gas, heat added, change in internal energy
2a. Explain the Kelvin-Plank and Clausius statements of the second law of thermodynamics and prove their equivalence
b. A carnot heat engine recieves 50 KJ of heat per cycle from a high temperature source at 652 degree celsius and reject heat to a low temperature sink at 30 degree celsius. Determine the carnot efficiency and the amount of heat rejected to the sink per cycle
3a. Derive an expression for theair standard efficiency of Diesel cycle
b. An engine working on the otto cycle has a cylinder diameter of 150mm and stroke of 225mm. The clearance volume is 1.25x10^-3 m^3. Find the air standard efficiency. Take gama=1.4
4a. Explain the working of a four stroke C.I engine with a neat sketch
b. Explain with the help of a neat sketch, a plain carburattor showing idiling jet and choke. What is the function of choke?
5a. Explain the terms:i) saturation temperature ii) Wet steam
iii) super heated steam iv) dryness fraction
b. Explain the working of a Babcock and Wilcox water tube boiler with a neat sketch
6a. Explain the difference between impulse turbine and reaction turbine
b. Explain the term 'compounding' in steam turbines. Discuss various methods of compounding steam turbines
The level was shifted after taking the 3rd and 6th readings. The first reading was taken on a B>M> of R.L. 100.00 m. Calculate the reduced level of all the points and enter the readings in the level field book form. [Marks 16]
B.Tech Degree I & II Semester Examination, June 2005
FUNDAMENTALS OF ENGINEERING I (B) MECHANICAL ENGINEERING
Time: 1½ Hours Maximum Marks: 50
I a) Explain the following with regard to thermodynamic system:
(4) Cycle[Marks 8]
b) 0.02 m³ of air at 600°C and 7 bar expands reversibly and adiabatically to four times its volume. Find (1) the final temperature and (2) the work done. [Marks 9]
II (a) What is Zeroth law of thermodynamics? [Marks 3]
(b) Give the Kelvin Planck and Clausius statements of the second law of thermodynamics, and prove their equivalence. [Marks 7]
(c) Explain Carnot’s cycle and obtain an expression for the efficiency of a Carnot’s engine. [Marks 7]
III (a) Explain the Brayton cycle and its applications. [Marks 8]
(b) Compare two-stroke and four-stroke engines.[Marks 9]
IV a) Prove that the air standard efficiency of Otto cycle is higher than that of diesel cycle having the same compression ratio.[Marks 10]
b) What is the function of a carburetor? Describe with sketch a sample carburetor used in petrol engine. [Marks 7]
V a) Find the saturation temperature, specific volume and specific enthalpy of steam 0.85 dry at 1Mpa. [(Marks 8]
b) Describe the working of a high pressure Benson boilers. [Marks 8]
VI a)Distinguish between fire tube and water tube boilers. [Marks 4]
b) Why is compounding needed in steam turbines? [Marks 4]
c) Describe with sketches a pressure-velocity compounded turbine. [Marks 8]
1a. What are the functional units of a computer? Explain the role of each in detail
b. How is the working of compiler different from the working of an interpreter?
c. What is the advantage of using assembly language over machine language?
2a. Briefly explain how the operating system manages the various resources.
b. What is internet? Discuss the major applications of internet
3a. With the help of suitable examples illustrate the logical operators used in C
b. Name and describe the basic data types in C
c. What are the three different classes of statements in C? Describe the composition of each
4a. What is the purpose of break statement? Within which control statement can it be included?
b. Write a switch statement that will examine the value of a character type variable named perfomance and prints one of the following messages depending on character assigned to the variable perfomance:
POOR- if either p or P is asigned to perfomance
AVERAGE- if either a or A is assigned to perfomance
GOOD- if either g or G is assigned to perfomance
BEST- if either b or B is assigned to perfomance
5a. What are function prototypes? what is their purpose? Where within a program are function prototypes normally placed?
b. Write a recursive program to find n'th Fibonocci number
6a. What is the purpose of an external variable? What is its scope?
b. What is the difference between parsing an array to function and parsing a single valued data item to a function?
7a. How are multi dimensional arrays defined? Compare with one dimensional arrays
b. Write a program to read the mark of 3 subjects and compute average mark for 50 students in a class and sort them in descending order. Display also the topper
8a. What is a union? How does it differ from a structure?
b. Explain how a multidimensional array can be expressed by an array of pointers using suitable example
9a. Discuss the different database models used in detail
b. Explain the basic structurre of an SQL expression
10. What is relational algebra? Describe the fundamental operation with example.