ME6403 Previous years Anna University Questions

April/May 2015, Nov/Dec 2014, APril/May 2014 Anna University Examination question papers are shown in here, Take for your reference and ready to get more marks in forthcoming University examinations.

BE/B.Tech Degree Examination April/May 2015

Fourth Semester

Mechanical Engineering

ME2253/ME44-ENGINEERING MATERIALS AND METALLURGY

(Common to Automobile Engineering Mechanical and Automation Engineering)

Regulation 2008/2010

BE/B.Tech Degree Examination April/May 2014

Fourth Semester

Mechanical Engineering

ME2253/ME44-ENGINEERING MATERIALS AND METALLURGY

(Common to Automobile Engineering Mechanical and Automation Engineering)

Regulation 2008/2010

BE/B.Tech Degree Examination November/December 2014

Fourth Semester

Mechanical Engineering

ME2253/ME44-ENGINEERING MATERIALS AND METALLURGY

(Common to Automobile Engineering Mechanical and Automation Engineering)

Regulation 2008/2010

For moreMechanical Engineering Subjects Previous years Anna University Questions were Uploaded in this website. 

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The Revised syllabus  of the Regulation 2013 is given in this post.

ME6403 ENGINEERING MATERIALS AND METALLURGY 

OBJECTIVES:

 To impart knowledge on the structure, properties, treatment, testing and applications of metals

and non-metallic materials so as to identify and select suitable materials for various

engineering applications.

UNIT I ALLOYS AND PHASE DIAGRAMS 

Constitution of alloys – Solid solutions, substitutional and interstitial – phase diagrams, Isomorphous,

eutectic, eutectoid, peritectic, and peritectoid reactions, Iron – carbon equilibrium diagram.

Classification of steel and cast Iron microstructure, properties and application.

UNIT II HEAT TREATMENT 

Definition – Full annealing, stress relief, recrystallisation and spheroidising – normalising, hardening

and Tempering of steel. Isothermal transformation diagrams – cooling curves superimposed on I.T.

44 diagram CCR – Hardenability, Jominy end quench test - Austempering, martempering – case

hardening, carburizing, Nitriding, cyaniding, carbonitriding – Flame and Induction hardening – Vacuum

and Plasma hardening. .

UNIT III FERROUS AND NON-FERROUS METALS 

Effect of alloying additions on steel- α and β stabilisers– stainless and tool steels – HSLA, Maraging

steels – Cast Iron - Grey, white, malleable, spheroidal – alloy cast irons, Copper and copper alloys –

Brass, Bronze and Cupronickel – Aluminium and Al-Cu – precipitation strengthening treatment –

Bearing alloys, Mg-alloys, Ni-based super alloys and Titanium alloys.

UNIT IV NON-METALLIC MATERIALS 

Polymers – types of polymer, commodity and engineering polymers – Properties and applications of

various thermosetting and thermoplastic polymers (PP, PS, PVC, PMMA, PET,PC, PA, ABS, PI, PAI,

PPO, PPS, PEEK, PTFE, Polymers – Urea and Phenol formaldehydes)- Engineering Ceramics –

Properties and applications of Al2O3, SiC, Si3N4, PSZ and SIALON –Composites-Classifications- Metal

Matrix and FRP - Applications of Composites.

UNIT V MECHANICAL PROPERTIES AND DEFORMATION MECHANISMS 

Mechanisms of plastic deformation, slip and twinning – Types of fracture – Testing of materials under

tension, compression and shear loads – Hardness tests (Brinell, Vickers and Rockwell), hardness

tests, Impact test lzod and charpy, fatigue and creep failure mechanisms.

TOTAL : 45 PERIODS

OUTCOMES:

 Upon completion of this course, the students can able to apply the different materials, their

processing, heat treatments in suitable application in mechanical engineering fields.

TEXT BOOKS:

1. Avner,, S.H., “Introduction to Physical Metallurgy”, McGraw Hill Book Company,1994.

2. Williams D Callister, “Material Science and Engineering” Wiley India Pvt Ltd, Revised Indian

Edition 2007

REFERENCES:

1. Raghavan.V, “Materials Science and Engineering”, Prentice Hall of India Pvt. Ltd., 1999.

2. Kenneth G.Budinski and Michael K. Budinski, “Engineering Materials”, Prentice Hall of India

Private Limited, 4th Indian Reprint 2002.

3. Upadhyay. G.S. and Anish Upadhyay, “Materials Science and Engineering”, Viva Books Pvt.

Ltd., New Delhi, 2006.

4. U.C.Jindal : Material Science and Metallurgy, "Engineering Materials and Mettalurgy", First

Edition, Dorling Kindersley, 2012

ME6012/ME2037 Maintenance Engineering Question bank

ME2037/ME6012 Maintenance Engineering Unit wise 2 marks with answers is given in this post.This is one of the elective papers for whom are studying IV year VII semester in the department of Mechanical and Production Engineering

ANNA UNIVERSITY,CHENNAI

REGULATION 2013

COMMON TO MECHANICAL AND PRODUCTION ENGINEERING

YEAR/SEMESTER: IV/VIII

SUBJECT NAME :MAINTENANCE ENGINEERING

UNIT II MAINTENANCE POLICIES – PREVENTIVE MAINTENANCE 

Maintenance categories – Comparative merits of each category – Preventive maintenance, 

maintenance   schedules, repair cycle - Principles and methods of lubrication – TPM.

                   Unit II -PART A (2 Marks)

1.Classify various planned maintenance approach.  

1.preventive maintenance 

2.corrective maintenance 

3.predictive maintenance 

4.condition based maintenance

2.Define Maintenance Scheduling. 
Maintenance scheduling is a joint maintenance operations activity in which maintenance agrees to make the recourses available at a specific time when the unit can also be made available by operations.

3.Name the various stakeholders of maintenance scheduling
1. Operators 
2. Planners 
3. Schedulers 
4. Maintenance supervisors 
5. craftsman 
6. Store’s in charge 
7. operation superintendent 

4.What is meant by preventive maintenance approach? 
A comprehensive preventive maintenance program involves periodical evaluation of critical equipment, machinery to detect problem and schedule maintenance task to avoid degradation in operating conditions. It is designed for day to day maintenance like cleaning inspection, lubricating, re tightening etc. to retain the healthy condition of equipment.

5.What is meant by predictive Maintenance? 
Predictive maintenance is a management technique that uses regular evaluation of the actual operating conditions of plant equipment production systems and plant management functions to optimize total plant operation. 

6.What is meant by Breakdown maintenance approach? 
It is a type of maintenance approach in which equipment is allowed to function / operate till no failure occurs that no maintenance work is carried out ion advance to prevent failure. 

7.Define corrective maintenance approach. 
Corrective maintenance is the program focused on regular planed tasks that will maintain all critical machinery and system in optimum operation conditions.

8.What is meant by reliability centered maintenance (RCM)? Reliability centered maintenance is one of the well established systematic and a step by step instructional tool for selecting applicable and appropriate maintenance operation types. It helps in how to analyze all failure modes in a system and define how to prevent or find those failures early.

9.What is limitation of breakdown maintenance? 
1. Most repairs are poorly planned due to time constraint caused by production and plant management. This will cost three to four times than the same repair when it is well planned. 
2. This approach focus only on repair or the symptoms of failure and not on the root cause of failure. This results only in increase in the frequency of repair and correspondingly the maintenance costs.

10.Name the five S principles used for implementations of TPM. 
1. SEIRI – Sort out 
2. SEITON –Organize 
3. SEISO – Shine workplace 
4. SEIKETSU – Standardization 
5. SHITSUKE – Self discipline

11.What are the objectives of TPM? 
The main objectives of TPM are 
1. to achieve zero defects 
2. achieve zero accidents and zero break downs in all functional areas of an organization 
3. to create different team of people to have active participation.
4. To aim at minimization of defects and 
5. To inculcate autonomous policy.

12.List the various pillars of TPM? 
1. 5,S Principle 
2. jishu hozen(JH) 
3. Kaizen
4. planned maintenance
5. Quality maintenance. 
6. training 
7. office TPM 
8. Safety, health and environment

13. What does safety, health and environment pillar of TPM aims at? 
This pillar aims at achieving Zero accident, Zero health damage and Zero fires.

14.What is total productive maintenance and discuss its similarities with TQM? 
Total productive maintenance is a maintenance program which involves a newly defined concept of maintaining plants and equipments. The goal of TPM program is to significantly increase the production, at the same time increasing employee morale and job satisfaction.

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Computer Aided Design Question Bank

ANNA UNIVERSITY-CHENNAI

REGULATION 2013

ME6501-COMPUTER AIDED DESIGN

TWO MARKS QUESTIONS WITH ANSWERS 

UNIT-2

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1.Write down the advantages of surface modeling.

1. Surface modeling can be used to check the real look of the product with coloring and shading.
2. Surface modeling can be used to perform interference checking.
3. As the surface models precisely define the part geometry such as surface and boundaries, they can help to produce machine instructions automatically.
4. Complex surface features can be created very easily.
5. Un ambiguities in the interpretation of object is less than wire frame models by using the provision of hidden line removal.

2.What is CGS?
Constructive solid geometry (CSG) is a method used in solid modeling for creating 3D models in CAD. Constructive solid geometry permits a modeler to make a complex surface by applying Boolean operators to join objects. Frequently CSG presents a model/surface that appears visually complex, but is essentially little more than cleverly combined.

3.Write down two important solid modeling technique.
The solid modeling techniques permit for the automation of some complicated engineering calculations that are approved as a part of the design progression. Simulation, planning, and confirmation of processes such as machining and assembly were one of the initiations for the
development of solid modeling technique.

4.Write down ‘Free form surface’.
Freeform surface is used in CAD and other computer graphics software to describe the skin of a 3D geometric element. Freeform surfaces do not have rigid radial dimensions, unlike regular surfaces such as planes, cylinders and conic surfaces.

5.Define ‘focus’ of a curve.
In geometry, the focus is pair of special points with reference to which any of a variety of curves is constructed.

6. Write a short note ‘Hermite curve’.
A Hermite curve is a spline where every piece is a third degree polynomial defined in Hermite form: that is, by its values and initial derivatives at the end points of the equivalent domain interval.

7.Define Conic section.
A conic section is a curve created as the intersection of a cone with a plane. In analytic geometry, a conic may be described as a plane algebraic curve of degree two, and as a quadric of dimension two.

8.Write down the eccentricity value for ellipse, parabola and hyperbola. 

The value of eccentricity less than one is ellipses, those with eccentricity equal to one are parabolas, and those with eccentricity greater than one is hyperbolas.

9.Define Quadratic Bezier curve.

 

As shown in the figure, a quadratic Bezier curve is the path defined by the function B(t), given
points P0, P1, and P2,B(t)={(1-t) (1-t)P0=tp1=t(1-t)p1=tp2}

10.List out properties of B-Spline.
i. The maximum order in every parametric direction is limited to the number of describing polygon vertices in that path.
ii. The surface is changeable to an affine transformation.
iii. The deviation diminishing property of B-spline surface is not well recognized.
iv. The control of any polygon net vertex is limited to ±p/2, ±q/2 spans in the particular parametric direction.
v. If the number of polygon net vertices is equal to the order of basis in that dire.

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ME6501 COMPUTER AIDED DESIGN 2 MARKS WITH ANSWERS

ANNA UNIVERSITY-CHENNAI

REGULATION 2013

ME6501-COMPUTER AIDED DESIGN

TWO MARKS QUESTIONS WITH ANSWERS 

UNIT-1 

1.List out fundamentals of product life cycle management.
1. Customer Relationship Management (CRM)
2. Supply Chain Management (SCM)
3. Enterprise resource planning (ERP)
4. Product Planning and Development (PPD).

2.What is conceptualization in design process?
A Concept Study is the stage of project planning that includes developing ideas and taking into account the all features of executing those ideas. This stage of a project is done to reduce the likelihood of assess risks, error and evaluate the potential success of the planned project.

3.Define Product cycle.
Product cycle is the process of managing the entire life cycle of a product from starting, through design and manufacture, to repair and removal of manufactured products.

4. Differentiate preliminary design and detailed design.
Preliminary design Detailed design
The preliminary design fills the gap between the design concept and the detailed design phase. The system configuration is defined, and schematics, diagrams, and layouts of the project will offer early project configuration. In detailed design and optimization, the parameters of the part being produced will change, but the preliminary design focuses on creating the common framework to construct the project.
The next phase of preliminary design is the Detailed Design which may includes of procurement also. This phase builds on the already developed preliminary design, aiming to further develop each phase of the project by total description through drawings, modeling as well as specifications.

5.What is ‘Rendering’?
Rendering is the making of a two dimensional image from a three dimensional model by means of computer programs. A picture file has objects in a strictly defined data structure; it would have information of geometry, lighting, viewpoint, texture, and shading as a description of the scene.

6.State the importance of Computer Architecture in CAD.
In CAD, Computer architecture is a set of disciplines that explains the functionality, the organization and the introduction of computer systems; that is, it  describes the capabilities of a computer and its programming method in a summary way, and how the internal organization of the system is designed and executed to meet the specified facilities.

7.Define concurrent engineering and state it's advantages:
In concurrent engineering, various tasks are handled at the same time, and not essentially in the standard order. This means that info found out later in the course can be added to earlier parts, improving them, and also saving time. Concurrent engineering is a method by which several groups within an organization work simultaneously to create new products and services.

Advantages:

1.Both product and process design run in parallel and take place in the same time.
2. Process and Product are coordinated to attain optimal matching of requirements for effective
quality and delivery.
3. Decision making involves full team involvement.

8.What do you understand by the term ‘Texture Mapping’?
Texture mapping is a system for providing detail, surface texture and color to a computer- generated graphic model. A texture map is used to the surface of a polygon. This process is like to sticking patterned paper to a plain white paper. Multi texturing is the use of more numbers of textures at
a time on a polygon.

9.What are the steps involved in architecture implementation?
Computer architecture engages different aspects, including instruction set architecture design, logic design, and implementation. The implementation includes Integrated Circuit
Design, Power, and Cooling. Optimization of the design needs expertise with Compilers, Operating Systems and Packaging.

10.Describe Computer Aided Design.
CAD is the function of computer systems to support in the creation, modification, analysis, or optimization of a design. CAD software is used to raise the productivity of the designer, progress the quality of design, progress communications through documentation, and to generate a database for manufacturing. 


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ME6503 DESIGN OF MACHINE ELEMENTS QUESTION BANK

ANNA UNIVERSITY CHENNAI

REGULATION 2013

ME6503-DESIGN OF MACHINE ELEMENTS

       UNIVERSITY QUESTIONS  

                                            UNIT-V
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PART-A

1. List any two advantages of rolling contact bearings.

2. Define coefficient of steadiness.

3. What is meant by journal bearing?

4. Classify the types of bearings.

5. What is meant by life of anti-friction bearings?

6. What are the essential requirements in an end face seal?

7. State the merits of hydrostatic bearings.

8. Differentiate sliding contact and rolling contact bearings.

9. What is the illumination of McKee’s equation?

10. Distinguish between hydrostatic and hydrodynamic bearings.

11. Explain the term Dynamic load carrying capacities of rolling contact bearing.

Part - B

1. Design a journal bearing for a centrifugal pump with the following data: Diameter of the journal =150mm. Load on bearing=40KN, Speed of journal=900 rpm.

2. Select a bearing for a 40 mm diameter shaft rotates at 400 rpm. Due to bevel gear mounted on the shaft, the bearing will have to withstand a 5000N radial and a 3000N thrust load. The life of the bearing expected to be at least 1000 hrs.

3. A Single row deep groove ball bearing operating at 2000 rpm is acted by a 10 KN radial load and 8 KN thrust load. The bearing is subjected to a light shock load and the outer ring is rotating. Determine the rating life of the bearing.

4. Design a journal bearing for a centrifugal pump for the following data: Load on the journal =2000N; Speed of the journal=900 rpm; Type of oil is SAE 10, for which the absolute viscosity at C =0.17 N/m-s; Ambient temperature of oil=C, Maximum bearing pressure for the pump=1.5 N/.Calculate also mass of lubricating oil required for artificial cooling, if rise of temperature of oil be limited to C. Heat dissipation coefficient=1232W//oC.

5. A single row deep grove ball bearing is subjected to a radial force of 8 kN and a thrust force of 3kN. The shaft rotates at 1200 rpm. The expected life of the bearing of the shaft is 75mm. Select a suitable ball bearing for this application.

6. The radial reaction on a bearing is 8000N. It also carries a thrust of 5000N. The shaft diameter is 140mm and it rotates at 1700 rpm. Outer ring is stationery. Load is smooth, 8 hours/day for a life of 17000 hours. (a) Select a deep groove ball bearing. (b) What is the rated 90% life of the selected bearing? (c) For b= 1.34 compute the probability of the selected bearing surviving 17000 hours.

7. (a) Select a suitable deep groove ball bearing for supporting a radial load of 10 kN and an axial load of 3 kN for a life of 4000 hrs at 800 rpm. Select from series 63. Calculate the expected life of the selected bearing.

(b)  A journal bearing 150 mm diameter and 300 mm long carries a radial load of 9 kN at 1200 rpm. The diametral clearance is 0.075 mm. If 6 kW is being lost in friction, what is the viscosity of the oil used at given operating temperature?

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GE6152 Engineering Graphics university questions

This post covers the repeated questions of Engineeering Graphics asking from the Anna University, Chennai. If you draw the following questions surely you will get good marks in university exams.

All subjects question banks, Lecture notes, PPT, university questions, Question bank, unit wise 2 marks and 16 marks can be downloaded from the link : 

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Semester & Branch: I & ALL BRANCH 

Subject Name          : ENGINEERING GRAPHICS  

Subject Code          : GE 6152 

1 (a). A regular pentagon of 30 mm side is resting on one of it’s edges on H.P, which is   inclined at 30º to H.P. It’s surface is inclined at 45º to VP. Draw its projections.    

2. A circular lamina of 60 mm diameter is resting on VP on one of its circumference point such that the surface is 40º inclined to V.P. Draw the projections of the lamina if  the diagonal passing through the point on which it is resting is making 50º with H.P. 

3.A pentagonal prism, side of base 25 mm side and axis 55 mm long, rests with one of its shorter edges on HP such that the base containing that edge makes an angle of 30° to HP and its axis is parallel to VP. Draw its projections. 

4. A cylinder of base diameter 60 mm and height 80 mm is resting on HP in one of its generators with its axis inclined at 50° to VP. Draw its projections.  

5.A hexagonal pyramid of base 25 mm and axis 60 mm long is freely suspended from a corner of the base. Draw the projections. 

6.A cone of 50 mm diameter and 70 mm height rests on the ground on one of its base circle point such that the apex is 20 mm and the nearest base circle point is 50 mm infront of VP and the base is perpendicular to HP. Draw the projections.

7.Mark the projection of the following points on a common reference line, keeping the projectors 35mm apart.

i)   A, 35mm above HP and 25mm in front of VP

ii)  B, 40mm below HP and 15mm behind VP

iii) C, 50mm above HP and 25mm behind VP

iv) D, 45mm below HP and 25mm behind VP

v)  E, 30mm behind VP and on HP                                                  

                            

8.Construct an involute of circle of diameter 30mm. Draw the tangent and normal to the curve

                                                                                                                                                                                                                                                            

9.Draw the locus of a curve traced by a point, when the distance of the focus from the directrix is equal to 35mm and eccentricity is 1. Also draw the tangent and normal to the curve at any point on the curve.                                                                        

10. A circle of 50mm diameter rolls along a line. A point on the circumference of the circle is in contact with the line in the beginning and the after one complete revolution. Draw the path traced by a point on the circumference of the circle. Also draw a tangent and normal to the generated curve.

                                                                                                                                                                            

12. The top view of a 75 mm long line AB measures 65 mm, while the length of its front view is 50 mm. It’s one end A is in the HP & 12 mm in front of VP. Draw the projections of the line & determine its inclinations with HP & VP.

13.A square lamina ABCD 40 mm side rests on one of its corner on ground. The plane is inclined at an angle of 30° to the ground and diagonal DB, in plan inclined at 45° to the VP and parallel to the HP. Draw its projections.   

                                             

14. A regular pentagon of 30 mm side is resting on one of it’s edges on H.P, which is inclined at 30º to H.P. It’s surface is inclined at 45º to VP. Draw its projections.  

15.   A cone of 50 mm diameter and 70 mm height rests on the ground on one of its base circle point such that the apex is 20 mm and the nearest base circle point is 50 mm in front of VP and the base is perpendicular to HP. Draw the projections.

16. A cylinder of base diameter 60 mm and height 80 mm is resting on HP in one of its generators with its axis inclined at 50° to VP. Draw its projections. 

17. A hexagonal pyramid of base 25 mm and axis 60 mm long is freely suspended from a corner of the base. Draw the projections. 

18. A pentagonal prism, side of base 25 mm side and axis 55 mm long, rests with one of its shorter edges on HP such that the base containing that edge makes an angle of 30° to HP and its axis is parallel to VP. Draw its projections 

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