MY-101 - NED University

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MY-101 Introduction to Metallurgical EngineeringDepartment of Metallurgical Engineering1. LCD 2. Keyboard3. ProtectiveNose4. Indenter (Insideprotective nose)Tester Parts5. Anvil 6. Screw Pindle7. Emergencystop8. Printer9. RS232 10. Cable interface11. Main switch 12. Fuse holderProcedureExplain yourself about this practical.__________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________Question1. Unit for measuring Brinell’s hardness isa. HRBb. Hardness numberc. Grams /mmd. None of the above24
MY-101 Introduction to Metallurgical EngineeringDepartment of Metallurgical Engineering2. Diamond indenter is used ina. Brinell is Hardness testb. Rockwell Hardness testc. Both of the above3. A Brinell’s Hardness test was done on the following materials and results tabulatedAs followsa. Materials A, HB=200b. Materials B, HB=100c. Materials C, HB=50Which materials is the hardest?Answer ____________4. A ball of 5mm diameter is used as indenter in a brinell’s Test on 3 different materialsall subjected to the same load. The size of the indentation diameter was found to bea. MATERIAL A, d= 1.5mmb. MATERIAL B, d=1.3mmc. MATERIAL C, d=1.1mmWhich material is the hardest?Answer25
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MY-101 - NED University

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