Exam Details
| Subject | Engineering Materials | |
| Paper | ||
| Exam / Course | Bachelor of Technology in Mechanical Engineering (Computer Integrated Manufacturing) BTME | |
| Department | School of Engineering & Technology (SOET) | |
| Organization | indira gandhi national open university | |
| Position | ||
| Exam Date | December, 2016 | |
| City, State | new delhi, |
Question Paper
No. of Printed Pages: 3
IBME'-OISI
B.Tech.MECHANICAL ENGINEERING
(COMPUTER INTEGRATED
MANUFACTURING) I
B.Tech. AEROSPACE ENGINEERING (BTAE) I
BTMEVI
00343
Term-End Examination December, 2016
BME-018 ENGINEERING MATERIALS
Time hours Maximum Marks: 70
Note: Answer any five of the following questions. Use of scientific calculator and log table is allowed.
1. What are Creep strength and Rupture strength? 4
The Larson-Miller parameters for an alloy at test levels of 10 MPa and 30 MPa are determined respectively as 18 x 10^4 and 16 x 10^4 . Find the parameter for 20 MPa. 10
2. Describe the different methods of surface hardening process. Also suggest their applications. 7
Suggest one alloying element each to improve the following properties of an alloy steel
Wear Resistance
Fatigue Strength
Toughness
Corrosion Resistance
Machinability
Hardenability
Hot Hardness
3. What are the different types of bonding used to make a grinding wheel Describe the properties of each bonding.
(b)Discuss the properties of refractory materials.
4. What is polymerisation Define degree of freedom of polymerisation.
What materials are used to make fibres for reinforcement in composites? How do they improve the mechanical properties of composites?
5. With the help of a neat schematic diagram, describe crack length variation with component life. 5
What is Griffith's criterion of fracture A wide plate of mild steel is subjected to uniform tensile load causing a stress of 100 MPa. Calculate the critical crack length in the centre of the plate which (when reached) will cause the plate to fracture, if fracture toughness of mild steel is 1340 N/mm^2 sqrt(mm) 9
6. Define the 'cutting tool wear'. Describe the factors that influence the tool wear. 7
Enumerate the functions of cutting fluids. Why are oil-water emulsions used as cutting fluids?
7. Write short notes on any four of the following:
Materials used as abrasives for making grinding wheels
Mechanical properties of plastic as an engineering material
Modulus of Resilience
Functions of a lubricant
Surface treatment of steels
Properties of Glass
Properties of High Speed Steel
IBME'-OISI
B.Tech.MECHANICAL ENGINEERING
(COMPUTER INTEGRATED
MANUFACTURING) I
B.Tech. AEROSPACE ENGINEERING (BTAE) I
BTMEVI
00343
Term-End Examination December, 2016
BME-018 ENGINEERING MATERIALS
Time hours Maximum Marks: 70
Note: Answer any five of the following questions. Use of scientific calculator and log table is allowed.
1. What are Creep strength and Rupture strength? 4
The Larson-Miller parameters for an alloy at test levels of 10 MPa and 30 MPa are determined respectively as 18 x 10^4 and 16 x 10^4 . Find the parameter for 20 MPa. 10
2. Describe the different methods of surface hardening process. Also suggest their applications. 7
Suggest one alloying element each to improve the following properties of an alloy steel
Wear Resistance
Fatigue Strength
Toughness
Corrosion Resistance
Machinability
Hardenability
Hot Hardness
3. What are the different types of bonding used to make a grinding wheel Describe the properties of each bonding.
(b)Discuss the properties of refractory materials.
4. What is polymerisation Define degree of freedom of polymerisation.
What materials are used to make fibres for reinforcement in composites? How do they improve the mechanical properties of composites?
5. With the help of a neat schematic diagram, describe crack length variation with component life. 5
What is Griffith's criterion of fracture A wide plate of mild steel is subjected to uniform tensile load causing a stress of 100 MPa. Calculate the critical crack length in the centre of the plate which (when reached) will cause the plate to fracture, if fracture toughness of mild steel is 1340 N/mm^2 sqrt(mm) 9
6. Define the 'cutting tool wear'. Describe the factors that influence the tool wear. 7
Enumerate the functions of cutting fluids. Why are oil-water emulsions used as cutting fluids?
7. Write short notes on any four of the following:
Materials used as abrasives for making grinding wheels
Mechanical properties of plastic as an engineering material
Modulus of Resilience
Functions of a lubricant
Surface treatment of steels
Properties of Glass
Properties of High Speed Steel
Other Question Papers
Departments
- Centre for Corporate Education, Training & Consultancy (CCETC)
- Centre for Corporate Education, Training & Consultancy (CCETC)
- National Centre for Disability Studies (NCDS)
- School of Agriculture (SOA)
- School of Computer and Information Sciences (SOCIS)
- School of Continuing Education (SOCE)
- School of Education (SOE)
- School of Engineering & Technology (SOET)
- School of Extension and Development Studies (SOEDS)
- School of Foreign Languages (SOFL)
- School of Gender Development Studies(SOGDS)
- School of Health Science (SOHS)
- School of Humanities (SOH)
- School of Interdisciplinary and Trans-Disciplinary Studies (SOITDS)
- School of Journalism and New Media Studies (SOJNMS)
- School of Law (SOL)
- School of Management Studies (SOMS)
- School of Performing Arts and Visual Arts (SOPVA)
- School of Performing Arts and Visual Arts(SOPVA)
- School of Sciences (SOS)
- School of Social Sciences (SOSS)
- School of Social Work (SOSW)
- School of Tourism & Hospitality Service Sectoral SOMS (SOTHSM)
- School of Tourism &Hospitality Service Sectoral SOMS (SOTHSSM)
- School of Translation Studies and Training (SOTST)
- School of Vocational Education and Training (SOVET)
- Staff Training & Research in Distance Education (STRIDE)
Subjects
- Advanced Manufacturing Technology
- CNC Technology
- Computer Aided Design
- Computer Integrated Manufacturing
- Computer Programmingand Application
- ComputerAided Process Planning
- Condition Monitoringand Maintenance Engineering
- Energy Conversion
- Engineering Materials
- Engineering Mathematics Il
- Engineering Mathematics-I
- Engineering Mechanics
- Engineering Thermodynamics
- Fluid Mechanics
- Heat And Mass Transfer
- Industrial Engineering & Operations Research
- Kinematics & Dynamics of Mechanisms
- Machining Technology
- Manufacturing Systems, Integration and Control
- Manufacturing Technology
- Mechanical Engineering Design
- Mechatronics
- Metrology and Instrumentation
- Principles of Electrical and Electronic Sciences
- Production Management
- Quality Engineering
- Robotics
- Safety Engineering
- Soft Computing in CIM
- Strength of Materials
- Tool Engineering and Management