ME2252, ME 43, ME 1252 A, 080120016, 10122, ME 403 - Manufacturing Technology - II: Anna University 04th Semester B.E Mechanical May June 2014 Question Paper

Question Paper Code: 51630

Anna University Chennai

B.E/B.Tech Degree Examinations, May June 2014

Fourth Semester (04th Semester)

Mechanical Engineering

ME2252/ME 43/ME 1252 A/080120016/10122 ME 403 - Manufacturing Technology - II

(Common to Industrial Engineering, Industrial Engineering and Management and Mechanical and Automation Engineering)

(Regulation 2008/2010)

(Common to PTME 2252 Manufacturing Technology - II for B.E (Part-Time) Third Semester Mechanical Engineering - Regulation 2009)

ME2252, ME 43, ME 1252 A, 080120016, 10122, ME 403 - Manufacturing Technology - II: Anna University 04th Semester B.E Mechanical Nov Dec 2014 Question Paper

Question Paper Code: 91642

Anna University Chennai

B.E/B.Tech Degree Examinations, November December 2014

Fourth Semester (04th Semester)

Mechanical Engineering

ME2252/ME 43/ME 1252 A/080120016/10122 ME 403 - Manufacturing Technology - II

(Common to Industrial Engineering, Industrial Engineering and Management and Mechanical and Automation Engineering)

(Regulation 2008/2010)

(Common to PTME 2252/10122 ME 403 Manufacturing Technology - II for Mechanical and Automation Engineering)

SVCET VNR, III Internal Test - Power Plant Engineering - Mechanical - Set 02

Sri Vidya College of Engineering and Technology

Sivakasi main road, Virudhunagar – 626 005

Department of Mechanical Engineering

III Internal Test 

Semester &Branch	VII & MECHANICAL	Date:	FN
Subject Name	PPE	Max. Marks	50
Subject Code	ME 2403	Max. Time	1:30

Part A                                                   (5X2 =10)

1	What is an isotope?
2	What are the components of a nuclear power plant?
3	What are the function s of control rods?
4	What are reaction turbines? Give examples
5	What is meant by surge tank?

Part B

6 (a)	Explain the main components of nuclear power plant.	8
	Or
(b)	Differentiate Nuclear fission and Nuclear fusion.
7 (a)	Explain the construction and working of CANDU  reactor	16
	Or
(b)	What are the components of Francis turbine and describe briefly.
8 (a)	Explain the principle of operation of sodium graphite reactor.	16
	Or
(b)	Write short notes on a) turbines for Micro-Hydro power b) Load factor c) Load control governors.

SVCET VNR, III Internal Test - Power Plant Engineering - Mechanical - Set 01

Sri Vidya College of Engineering and Technology Sivakasi main road, Virudhunagar – 626 005 Department of Mechanical Engineering III Internal Test

Semester & Branch	VII & MECHANICAL	Date:	FN
Subject Name	PPE	Max. Marks	50
Subject Code	ME 2403	Max. Time	1:30

Part-A                                                      5x2=10

1.	What are the advantages of nuclear power plant?
2	What is Nuclear fusion?
3	Define Chain reaction.
4	What is impulse turbine? Give an example.
5	What are the main components in Kaplan turbine?

Part B

	6 (a)	Explain the nuclear fission process with help of neat sketch.	8
		Or
(b)		Differentiate pelton wheel turbine with Francis turbine.
7(a)		Explain the construction and working of pressurized water reactor.	16
		Or
(b)		Describe the working of Kaplan turbine with neat sketch.
	8 (a)	Write short notes on following i) Boiling water reactor ii) Fast breeder reactor.	16
		Or
	(b)	Draw a layout of typical micro hydro scheme and explain its working in detail.

ME 2027 - Process Planning and Cost Estimation 2012 Anna University Mechanical Engineering Question Paper

Are you looking for old question papers of PPCE, Process Planning and Cost Estimation? The following contents represents a question paper that was asked in the year 2012 for Anna University Mechanical Engineering University Examinations. The subject was ME 1007 for regulation 2004. But in regulation 2008, the subject was changed as ME 2027. It is an elective paper for seventh semester. Read the full contents of PPCE question paper hereunder.

B.E/B.Tech DEGREE EXAMINATION, MAY/JUNE 2012. 

Seventh Semester 

Mechanical Engineering 

ME 1007 - PROCESS PLANNING AND COST ESTIMATION 

(Common to Production Engineering) 

(Regulation 2004) 

(Also common to B.E. (Part-Time) Sixth Semester Mechanical Engineering - Regulation 2005) 

Time : Three hours Maximum: 100 marks 

Answer ALL questions. 

PART A - (10 x 2 = 20 marks) 

1. Define SIMO chart.
2. What is the difference between method study and work measurement?
3. What are the types of process planning?
4. What are the activities associated with process planning?

5. State the objectives of cost estimating.
6. What do you mean by a realistic estimate?
7. State the functions of an estimator.
8. What is meant by Standard data?
9. Define the term 'Direct material cost'.
10. What do you mean by Overhead expenses?

PART B - (5 x 16 = 80 marks) 

11. (a) Enumerate the principles of motion economy pertaining to work place layout. (16)

Or 

(b) Discuss the objectives and various applications of ergonomics. (16)

12. (a) Describe the various types of charts, diagrams and other documents used in process planning. (16)

Or 

(b) (i) Explain the process planning procedure. (8)
(ii) What are the factors that influence process planning? (8)

13. (a) Explain the various methods of costing. (16)

Or 

(b) From the records of an oil mill, the following data are available.
(i) Raw materials
Opening stock = Rs. 1,40,000
Closing stock = Rs. 1,00,000
Total purchases
during the year = Rs. 2,00,000
(ii) Finished Goods
Opening stock = Rs. 20,000
Closing stock = Rs. 30,000
Sales = Rs. 6,00,000
(iii) Direct wages = Rs. 1,00,000
(iv) Factory expenses = Rs. 1,00,000
(y) Non-manufacturing expenses = Rs. 85,000
Find out what price should be quoted for a product involving an expenditure of Rs. 35,000 in material and Rs. 45,000 wages. Factory expenses to labour cost is 100/- (16)

14. (a) (i) Differentiate between cost estimating and cost accounting. (8)
(ii) Discuss the various allowances in estimation. (8)

Or 

(b) (i) What are the data requirements find sources available to develop an estimate? (8)
(ii) Briefly discuss the estimating procedure. (8)

15. (a) Briefly explain the estimation of machining time for various lathe operations with sketches. (16)

Or 

(b) Two 1 m long M.S plates of 10 mm thickness are to be welded by a lap joint with a 8 mm electrode. Calculate the cost of welding. (16)
Assume the following data.
(i) Current used = 30 amperes
(ii) Voltage = 300 V
(iii) Welding speed = 10 m/hr
(iv) Electrode used = 0.1 kg/m of welding
(y) Labour charges = Rs 4.00 / hr
(vi) Power charges = Rs 0.2/ kwh
(vil) Cost of electrode = Rs 40.00/ kg
(viii) Efficiency of machine = 70%

Download all previous years question papers for ME2017 PPCE here

Gas Dynamics and Space Propulsion Anna University B.E Mechanical Model Question Paper

Do you in need of model questions for the paper "Gas Dynamics and Space Propulsion"? Here is available the model question paper of this paper for Anna University, Chennai. This is beneficial for those who are doing their B.E Mechanical Engineering under Anna university and its affiliated colleges. Read the contents of model question paper now.



Anna University, Chennai
Model Question Paper
B.E.  Degree Examination
05th Semester
Mechanical Engineering
ME 333  -  GAS DYNAMICS AND SPACE PROPULSION
Time : 3 Hours                                                                                        
Max. Marks: 100
       
Answer All Questions
PART – A  ( 10  x 2 = 20 Marks )

1. Derive the relationship between static temperature and stagnation temperature.
2. Define Zone of action and Zone of silence.
3. What is choked flow?
4. Heat addition to a gas may cool the gas. Explain with proper h-s diagram.
5. Explain the difference between normal and oblique shocks.
6. Define strength of shock wave?
7. What is ram effect?
8. What is the difference between shaft propulsion and jet propulsion?
9. How are rockets classified?    
10. What is bi-propellant? Give examples.

PART – B  ( 5  x 16 = 80 Marks )

11.i)   Sketch the variation of area, velocity and pressure for isentropic flow through subsonic and supersonic nozzle.
    ii) Air enters an isentropic diffuser with a Mach number of 3.6 and is decelerated to a Mach number of 2. The diffuser passes a flow of 15 kg/s. The initial static pressure and temperature of the air are 1.05 bar and 40°C. Assuming Mach number = 1.4, calculate area, total pressure and total temperature at inlet and exit and static temperature and pressure at exit.

12.a)   Air is flowing through an insulated duct. The inlet Mach number is 0.25. The friction factor 4f = 0.01. The diameter of duct is 15 cm. i) What length of pipe would give a 10 % loss in stagnationressure? What is the Much Number at this section? ii) What is the % of loss in pressure from inlet to a section at which the Mach number is 0.8? iii) What is the maximum length to reach chocking condition?

OR

12. b) i)   Compare the flows through a constant area duct for isentropic and adiabatic conditions.
ii)   A constant area combustion chamber receives air at 77°C, 0.55 bar and 75 m/s.  If the air leaves the combustion chamber at a Mach number of 0.85, determine conditions of air and the amount of heat transferred.  Also find the change in entropy.
           
13. a) i)   Derive Prandtl Meyer relation.

ii)   A gas stream ahead of a normal shock has pressure, temperature and velocity of 0.2 bar, 20°C and 1000 m/s respectively. Determine the Mach number, pressure, temperature down stream of the shock and the entropy changes across the shock wave. Take γ= 1.3 and Cp = 0.95 kJ/ kgk.

OR

13. b)   A supersonic nozzle is provided with a constant diameter circular duct at its exit. The diameter of the dust is same as the nozzle exit diameter. Nozzle exit cross section is three times that of its throat. The entry conditions of the gas are  Po = 10 bar, To = 600K. Calculate the static pressure, Mach number and velocity of the gas in the duct,

             i)   When the nozzle operates at its design conditions.
            ii)   When a normal shock occurs at its exit and
            iii)       When a normal shock occurs at a section in a diverging part where the area ratio A/A* = 2.
           Assume γ = 1.4, R = 0.287 kJ/kgk.

14.a)   A simple turbojet unit operates with a turbine inlet temperature of 1050°C. The  following data refer to this unit when tested at ground level. Compressor pressure  ratio = 7.5; Process through the compressor and turbine is isentropic; Nozzle efficiency = 96%; Ambient pressure = 100 kPa; Ambient temperature = 27° C; Mass flow rate of air = 25 kg/s. Neglect mass of fuel for calculation of thrust          and neglect pressure losses. Calculate thrust velocity and Mach number of the jet at the exit of nozzle and SFC. Assume Cp and  γ for gases and air as same as 1.005 kJ/kgk and 1.4 respectively.

OR

14.b) i)   Explain clearly turbojet and turboprop system with suitable diagrams.

       ii)   Diameter of an aircraft propeller is 4.0m. The speed ratio is 0.8 at a flight speed of 450 kmph. If the ambient conditions of air at the flight altitude are T = 256 K  and p = 0.54 bar, determine Propulsive efficiency, Thrust and Thrust power.

OR

15. a)  i)   Explain with sketch a liquid propelled rocket engine. What are its merits compared to solid propelled system?

          ii)   Write briefly on ‘Rockets Performance’.  
  
OR

15. b) i)   Discuss Multi-staging in rockets. Why is it employed?

ii)   The effective jet exit velocity of a rocket is 2400 m/s, the forward flight velocity is 1200 m/s and propellant consumption is 72 kg/s. Calculate thrust, thrust power and propulsive efficiency.