Work shop calculation 2nd year MCQ-6 (Heat Treatment) Work shop calculation Welcome to your Work shop calculation 2nd year MCQ-6 (Heat Treatment)- 1. What are the various types of heat treatment processes? A : Annealing, Normalising, Hardening and Tempering B : Normalising, Heating, Cooling and Painting C : Hardening, Soaking, Painting and Packing D : Tempering, Cooling, Packing and Solling 2.What are the various stages of heat treatment? A : Heating, Cooling and Quenching B : Quenching, Cooling and Heating C : Heating, Soaking and Quenching D : Soaking, Quenching and Cooling 3.What are the various stages of heat treatment? A : Heating, Cooling and Quenching B : Quenching, Cooling and Heating C : Heating, Soaking and Quenching D : Soaking, Quenching and Cooling 4.What is the name of the structure formed, if a steel is heated for about 723°C? A : Cementide B : Austenite C : Martensite D : Ferrite 5.Which heat treatment process is done to refine the grain structure of the steel? A : Annealing B : Normalising C : Hardening D : Tempering 6.What is the name of heat treatment process done to relieve strain and stress? A : Normalising B : Annealing C : Hardening D : Tempering 7.Which process produce equilibrium conditions? A : Annealing and Hardening B : Normalising and Tempering C : Annealing and Normalising D : Normalising and Tempering 8.Which process steel is heated in a carbonaceous atmosphere for the penetration of carbon? A : Case hardening B : Nitriding C : Carburising D : Induction hardening 9.Which is the suitable nitriding process for all alloyed and unalloyed steels? A : Silver nitriding B : Nitriding in salt-bath C : Nitriding in Quenching tank D : Gas nitriding 10.What is the name of the heat treatment process, where the metal is heated and quenched in water or oil? A : Hardening B : Normalising and Tempering C : Annealing D : Tempering 11.Which is a kind of surface hardening process? A : Cementide B : Ferrite C : Nitriding D : Tempering 12.How much time is allowed normally in soaking zone for a 10mm thick metal piece while hardening? A : 5 minutes B : 10 minutes C : 15 minutes D : 20 minutes 13.What is colour of a metal piece when heated to 250°C while doing the tempering process? A : Blue B : Brown C : Purple D : Pale 14.What is the purpose of tempering a steel? A : To reduce the brittleness B : To remove the ductility C : To increase the hardness D : To increase the brittleness Time's up
