II B.Tech I Semester Examinations,November 2010 THERMAL SCIENCE Common to Mechatronics, Production Engineering Time: 3 hours Max Marks: 80 Answer any FIVE Questions All Questions carry equal marks ????? 1. (a) Draw the diagram of A/F ratio versus throttle opening for different operating conditions of simple carburetor and explain salient features. (b) What are the limitations of simple carburetor and how to rectify them. [8+8] 2. (a) What are the different forms of energy? Define potential energy and kinetic energy? (b) A gas undergoes a reversible non flow process according to the relation p=(2v+14) where v is the volume in m3 and p is the pressure in bar. Determine the work done when the volume changes from 3 to 6 m3 . [6+10] 3. (a) Draw the flow diagram of vapour compression refrigeration system and analyze the thermodynamic cycle applied for it? (b) Explain the difference between the Bell Coleman and Joule cycle of refrigeration. [8+8] 4. (a) Prove that violation of the clausius statement leads to violation of the Kelvin Planck statement of the second law of thermodynamics. (b) How is entropy defined? (c) What is available energy and unavailable energy?
[10+2+4]
5. (a) What are different modes of fuel admission to engine cylinder? (b) Sketch a typical induction system of a petrol engine?
[8+8]
6. (a) State and explain the four processes of the diesel cycle. (b) A diesel engine has compression ratio of 14 and cut-off takes place at 6% of the stroke. Find the air standard efficiency. [8+8] 7. (a) What are different operating variables affect the thermal efficiency of gas turbine power plant? Explain. (b) The minimum and maximum temperature limits in a gas turbine plant are 288 K and 1100 K. The pressure limits are 1 bar and 8 bar. Determine the thermal efficiency and work ratio. [8+8] 8. (a) Define enthalpy and how is it related to internal energy. (b) A closed system consists of water contained in a cylinder and being stirred by a paddle wheel. During the process 35kj/hr of work was imparted to the system, and the internal energy increased to 145 kJ from its initial value of 120 KJ during one hour of stirring. Determine the heat transfer. [6+10] www.QuestionPaperDownload.com
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Code No: 07A3EC21
R07 ?????
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Set No. 2
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Code No: 07A3EC21
R07
Set No. 4
II B.Tech I Semester Examinations,November 2010 THERMAL SCIENCE Common to Mechatronics, Production Engineering Time: 3 hours Max Marks: 80 Answer any FIVE Questions All Questions carry equal marks ????? 1. (a) Define enthalpy and how is it related to internal energy. (b) A closed system consists of water contained in a cylinder and being stirred by a paddle wheel. During the process 35kj/hr of work was imparted to the system, and the internal energy increased to 145 kJ from its initial value of 120 KJ during one hour of stirring. Determine the heat transfer. [6+10] 2. (a) What are different modes of fuel admission to engine cylinder? (b) Sketch a typical induction system of a petrol engine?
[8+8]
3. (a) Draw the flow diagram of vapour compression refrigeration system and analyze the thermodynamic cycle applied for it? (b) Explain the difference between the Bell Coleman and Joule cycle of refrigeration. [8+8] 4. (a) Prove that violation of the clausius statement leads to violation of the Kelvin Planck statement of the second law of thermodynamics. (b) How is entropy defined? (c) What is available energy and unavailable energy?
[10+2+4]
5. (a) Draw the diagram of A/F ratio versus throttle opening for different operating conditions of simple carburetor and explain salient features. (b) What are the limitations of simple carburetor and how to rectify them. [8+8] 6. (a) State and explain the four processes of the diesel cycle. (b) A diesel engine has compression ratio of 14 and cut-off takes place at 6% of the stroke. Find the air standard efficiency. [8+8] 7. (a) What are the different forms of energy? Define potential energy and kinetic energy? (b) A gas undergoes a reversible non flow process according to the relation p=(2v+14) where v is the volume in m3 and p is the pressure in bar. Determine the work done when the volume changes from 3 to 6 m3 . [6+10] 8. (a) What are different operating variables affect the thermal efficiency of gas turbine power plant? Explain. (b) The minimum and maximum temperature limits in a gas turbine plant are 288 K and 1100 K. The pressure limits are 1 bar and 8 bar. Determine the thermal efficiency and work ratio. [8+8] www.QuestionPaperDownload.com
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Code No: 07A3EC21
R07 ?????
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Set No. 4
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Code No: 07A3EC21
R07
Set No. 1
II B.Tech I Semester Examinations,November 2010 THERMAL SCIENCE Common to Mechatronics, Production Engineering Time: 3 hours Max Marks: 80 Answer any FIVE Questions All Questions carry equal marks ????? 1. (a) Define enthalpy and how is it related to internal energy. (b) A closed system consists of water contained in a cylinder and being stirred by a paddle wheel. During the process 35kj/hr of work was imparted to the system, and the internal energy increased to 145 kJ from its initial value of 120 KJ during one hour of stirring. Determine the heat transfer. [6+10] 2. (a) What are the different forms of energy? Define potential energy and kinetic energy? (b) A gas undergoes a reversible non flow process according to the relation p=(2v+14) where v is the volume in m3 and p is the pressure in bar. Determine the work done when the volume changes from 3 to 6 m3 . [6+10] 3. (a) Draw the flow diagram of vapour compression refrigeration system and analyze the thermodynamic cycle applied for it? (b) Explain the difference between the Bell Coleman and Joule cycle of refrigeration. [8+8] 4. (a) Prove that violation of the clausius statement leads to violation of the Kelvin Planck statement of the second law of thermodynamics. (b) How is entropy defined? (c) What is available energy and unavailable energy?
[10+2+4]
5. (a) What are different modes of fuel admission to engine cylinder? (b) Sketch a typical induction system of a petrol engine?
[8+8]
6. (a) What are different operating variables affect the thermal efficiency of gas turbine power plant? Explain. (b) The minimum and maximum temperature limits in a gas turbine plant are 288 K and 1100 K. The pressure limits are 1 bar and 8 bar. Determine the thermal efficiency and work ratio. [8+8] 7. (a) State and explain the four processes of the diesel cycle. (b) A diesel engine has compression ratio of 14 and cut-off takes place at 6% of the stroke. Find the air standard efficiency. [8+8] 8. (a) Draw the diagram of A/F ratio versus throttle opening for different operating conditions of simple carburetor and explain salient features. www.QuestionPaperDownload.com
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Code No: 07A3EC21
R07
Set No. 1
(b) What are the limitations of simple carburetor and how to rectify them. [8+8] ?????
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Code No: 07A3EC21
R07
Set No. 3
II B.Tech I Semester Examinations,November 2010 THERMAL SCIENCE Common to Mechatronics, Production Engineering Time: 3 hours Max Marks: 80 Answer any FIVE Questions All Questions carry equal marks ????? 1. (a) Draw the diagram of A/F ratio versus throttle opening for different operating conditions of simple carburetor and explain salient features. (b) What are the limitations of simple carburetor and how to rectify them. [8+8] 2. (a) What are the different forms of energy? Define potential energy and kinetic energy? (b) A gas undergoes a reversible non flow process according to the relation p=(2v+14) where v is the volume in m3 and p is the pressure in bar. Determine the work done when the volume changes from 3 to 6 m3 . [6+10] 3. (a) Define enthalpy and how is it related to internal energy. (b) A closed system consists of water contained in a cylinder and being stirred by a paddle wheel. During the process 35kj/hr of work was imparted to the system, and the internal energy increased to 145 kJ from its initial value of 120 KJ during one hour of stirring. Determine the heat transfer. [6+10] 4. (a) Prove that violation of the clausius statement leads to violation of the Kelvin Planck statement of the second law of thermodynamics. (b) How is entropy defined? (c) What is available energy and unavailable energy?
[10+2+4]
5. (a) What are different operating variables affect the thermal efficiency of gas turbine power plant? Explain. (b) The minimum and maximum temperature limits in a gas turbine plant are 288 K and 1100 K. The pressure limits are 1 bar and 8 bar. Determine the thermal efficiency and work ratio. [8+8] 6. (a) Draw the flow diagram of vapour compression refrigeration system and analyze the thermodynamic cycle applied for it? (b) Explain the difference between the Bell Coleman and Joule cycle of refrigeration. [8+8] 7. (a) State and explain the four processes of the diesel cycle. (b) A diesel engine has compression ratio of 14 and cut-off takes place at 6% of the stroke. Find the air standard efficiency. [8+8] 8. (a) What are different modes of fuel admission to engine cylinder? www.QuestionPaperDownload.com
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Code No: 07A3EC21
R07
(b) Sketch a typical induction system of a petrol engine? ?????
Show that R is an equivalence relation. (b) Let A = {1, 2, 3, 4} and P = {{1, 2,3}, {4}} be a partition of A. Find the. equivalence relation determined by P. [10+6]. 3.
(a) Give a detailed comparison between combinational logic circuits and sequential. logic circuits. (b) Design a basic flip flop and explain its operation. [8+8] ?
(b) Discuss the Ward Leonard method of Speed control of DC motors. [8+8]. 6. Discuss different classifications of analog instruments and explain each of them.
(a) Write a short note on Synthetic rubber. (b) Compare natural rubber and vulcanized rubber? (c) Write a note on the engineering uses of Vulcanised rubber?
Describe various studies conducted on nerve conduction including Galvani and. Volta's experimentation, Goldman's theory and Hodgekin and huxely's observa- ...
There was a problem previewing this document. Retrying... Download. Connect more apps... Try one of the apps below to open or edit this item. B Tech 4-1 R07 ...
What will be the discharge when a cast iron. pipe of roughness k = 0.3 mm is used ? what will be the percentage increase in. the discharge if the cast iron pipe is ...
(c) Give the truth table for the Boolean expression (X0+Y)0. [4+8+4]. 6. Using Q-M method to determine the prime implicants and obtain the possible. minimal ...
(b) What are the advantages and disadvantages of Ellingham diagrams? [8+8]. 6. (a) Explain what do you mean by thermodynamic equillibrium. (b) Discuss the ...
discuss applicability of access modifiers to variables, methods and classes? [8+8]. 3.a) What is inheritance. Explain two benefits of inheritance, with an example ...
