E.G.S. PILLAY ENGINEERING COLLEGE (An Autonomous Institution, Affiliated to Anna University, Chennai) Nagore Post, Nagapattinam , Tamilnadu.

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1 17MF102 POLYMERS AND COMPOSITE MATERIALS Academic Year : Programme : M.E (Manuf.Engg) Question Bank Year / Semester : I/II Course Coordinator: Dr.S.Krishnamohan Course Objectives 1. To Impart Knowledge On Types, Physical Properties And Metal Matrix Composites. 2. To Identify Various Processing Of Polymer Matrix Composites, 3. To Understand Some Basic Concepts Of Ceramics Matrix Composites. Course Outcomes: On Completion Of The Course, Students Will Be Able To 1. Co1: To Study Matrix Material, Reinforcements Of Polymer Matrix Composites. 2. Co2: Understand The Various Methods MMC And Ceramic Matrix Composites 3. Co3:To Develop Knowledge On Processing, Interfacial Properties.. 4. Co4: Understand Application Of Composites 5. Co5:.Demonstrate The Concepts Of Processing Of Ceramic Matrix Composites And Carbon-Carbon Composites PART A ( 2 Mark Questions With Key) S.No Questions Mark COs BTL UNIT I PROCESSING OF POLYMERS 1 Define polymer. 2 2 What are the classifications of polymers? 2 3 What are the Properties of Thermo plastics? 2 4 What are the Properties of Thermosetting Plastics? 2 5 Define Injection Moulding. 2 6 Define Blow Moulding. 2 7 Define Compression Moulding. 2 8 Define Transfer Moulding. 2 9 What are the properties of Plastics? 2 10 Define Thermal bonding What is casting? 2 12 What is Thermo Forming? 2 1 K1 1 K1 1 K3 1 K K3 1 K5

2 13 What are the applications of polymers? 2 14 Write down the Machining Parameters for plastics Give the joining for plastics. 2 UNIT II FIBERS AND MATRIX MATERIALS 1 Mention the importance of S-Class fiber What is the role of reinforcement and matrix in a composite? Differentiate between metallic and ceramic fiber. 2 2 K3 4 Write the composition of boron fiber and mention its applications. 2 2 K3 5 Mention the importance of glass fiber. 2 2 K4 6 Write the properties of polymers. 2 2 K3 7 What are organic fibers? What are ceramic fibers? What are metallic fibers? Define Wettability. 2 2 K1 11 Write the properties of ceramics. 2 2 K1 12 Write the properties of metals What are the tests for measuring interfacial strength? 2 2 K1 14 What are the types of bonding? 2 2 K1 15 Write the applications of fibers. 2 2 K1 UNIT III PROCESSING OF POLYMER MATRIX COMPOSITES 1 List down the advantages of filament winding process. 2 3 K3 2 Differentiate between bulk moulding compound and sheet moulding compound Differentiate between ambient curing and autoclave curing. 2 3 K1 4 What is meant by recycling of PMC? 2 3 K1 5 Define Pultrusion moulding. 2 3

3 6 Define bag moulding, Define compression moulding. 2 3 K3 8 Define thermoplastic matrix composites What is film stacking? 2 3 K4 10 What is diaphragm forming? Define thermoplastic tape laying, 2 3 K4 12 What is injection moulding? Draw the Structure of PMCs. 2 3 K5 14 Write the properties of PMCs List the application of PMCs. 2 3 K5 UNIT IV PROCESSING OF METAL MATRIX COMPOSITES 1 State the effect on particle size on the properties of MMC. 2 4 K3 2 What is known as squeeze casting? State its importance Define wettability in metal matric composite. 2 4 K3 4 How the strength of MMC varies with volume fraction of the reinforcement? What are Metallic matrices? 2 4 K3 6 Write Down The Processing Of MMC. 2 4 K4 7 Define MMC. 2 4 K3 8 Define Diffusion Bonding 2 4 K4 9 Give The Machining Of MMC What Are The Mechanical Properties Of MMC? 2 4 K3 11 Define Solid State. 2 4 K4 12 Define Liquid State. 2 4 K3 13 What are the applications of MMC? 2 4 K4 14 What are the interfaces in MMCs? 2 4 K3

4 15 Define powder metallurgy techniques 2 4 K3 UNIT V PROCESSING OF CERAMIC MATRIX COMPOSITES AND CARBON-CARBON COMPOSITES 1 Mention the difference between liquid phase sintering and solid phase sintering. 2 5 K1 2 List out the applications of ceramic matrix composite What is known as sol-gel process? 2 5 K3 4 Mention the advantages of carbon -carbon composites. 2 5 K4 5 What is cold pressing? 2 5 K4 6 What is Sintering? 2 5 K3 7 Define reaction bonding, 2 5 K1 8 Define liquid infiltration Give the mechanical properties of CMCs. 2 5 K3 10 Write the applications of CMCs. 2 5 K3 11 Write the applications of carbon -carbon composites Define chemical vapour deposition, 2 5 K3 13 Define chemical vapour impregnation What are chemical reaction techniques? 2 5 K4 15 What are the Processing of CMCs 2 5 Note : 15 Questions with answer key must be prepared in each unit PART B (12 Mark Questions with Key) S.No Questions Mark COs BTL 1 Describe the Construction, working principle and applications of Compression Moulding. 2 Describe the construction, working principle and applications of Injection Moulding. 3 Describe the Construction, working principle and applications of Blow Moulding. 4 Explain the Properties of Thermo plastics in details. 5 Explain the Construction, working principle and applications of extrusion Moulding. 6 Describe the Construction, working principle and applications of Transfer Moulding K K K

5 UNIT II FIBERS AND MATRIX MATERIALS 1 Explain the fabrication methods, properties and application of glass fibers. 2 Explain the fabrication methods, properties and application of carbon fibers. 3 Explain the fabrication methods, properties and application of organic fibers. 4 Explain the fabrication methods, properties and application of ceramic fibers. 5 Explain the fabrication methods, properties and application of boron fibers. 6 Explain the fabrication methods, properties and application of metallic fibers UNIT III PROCESSING OF POLYMER MATRIX COMPOSITES 1 Explain the principles, disadvantages, and application of filament winding process with neat sketch. 2 Explain the compression moulding process with respect to BMC and SMC. 3 Explain the principles, disadvantages,and application of vacuum bag moulding process with neat sketch 4 Explain about the interface region of PMC with glass and aramid fibers. 5 Write short notes on recycling of PMC. 6 Explain the principles, disadvantages, and application of Pultrusion process with neat sketch. UNIT IV PROCESSING OF METAL MATRIX COMPOSITES 1 Explain the processing of MMCs with powder metallurgy 2 Explain about Machining Of MMC. 3 Explain the processing of MMCs with diffusion bonding. 4 Explain about Processing Of MMC. 5 Describe the mechanical properties and applications of MMC. 6 Explain about interfaces in MMCs. UNIT V PROCESSING OF CERAMIC MATRIX COMPOSITES AND CARBON-CARBON COMPOSITES 1 Explain the principles and applications of liquid state infiltration with respect to CMCs K3 2 Explain the principles and applications of chemical vapour deposition with respect to CMCs K3

6 3 Explain the principles and applications of chemical vapour impregnation with respect to CMCs Explain about mechanical properties and applications of CMCs. 5 Explain about Processing of CMCs. 6 Explain about cold pressing, sintering, and reaction bonding K K4 Note : 6 Questions with answer key must be prepared in each unit and maximum two sub divisions are allowed. PART C (20 Mark Questions with Key) S.No Questions Mark COs BTL UNIT I PROCESSING OF POLYMERS 1 Discuss any four thermosetting plastics in terms of their composition, characteristics, merits, demerits and applications Discuss the thermo forming and Thermal bonding in terms of their composition, characteristics, merits, demerits and applications. 20 UNIT II FIBERS AND MATRIX MATERIALS 1 Explain VLS process of SIC whisker growth. 2 List out any four common ceramic materials and write down their properties, advantages, disadvantages and uses 20 2 K K4 UNIT III PROCESSING OF POLYMER MATRIX COMPOSITES 1 Explain the principles, disadvantages, and application of diaphragm forming with neat sketch K4 2 Explain the principles, disadvantages, and application of resin transfer moulding with neat sketch K4 UNIT IV PROCESSING OF METAL MATRIX COMPOSITES 1 Explain the physical, thermal. Electrical properties and manufacturing procedures of SIC particulate. 2 Explain any four metallic matrices with respect to their physical, thermal, mechanical and electrical properties 20 5 K K4 UNIT V PROCESSING OF CERAMIC MATRIX COMPOSITES AND CARBON-CARBON COMPOSITES 1 Explain the fabrication methods, properties and applications of carbon -carbon composites K4 2 Explain the properties and applications of sol-gel 20 4 K4 Note : 2 Questions with answer key must be prepared in each unit and maximum two sub divisions are allowed.

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