B.TECH - Semester 4 metallurgy and material science Question Paper 2020 (sep)
Practice authentic previous year university questions for better exam preparation.
Sample Questions
- List the properties of a crystalline material when compared with an amorphous material.
- What is a viscoelastic material?
- What do you mean by solid solution strengthening?
- Which material property s important in ductile to brittle transition? Explain with a relevant graph.
- Differentiate between creep and fatigue.
- What is the difference between a eutectic reaction and a eutectoid reaction?
- Define critical cooling rate fir an iron carbon alloy system.
- What is the purpose of performing tempering heat treatment process?
- State the fundamental difference between steel and cast iron.
- What are the distinguishing properties of a smart material? $$ (10 \times 2=20 \text { Marks }) $$ P.T.O. Answer any one question from each Module． 11．（a）Define critically resolved shear stress and obtain an expression for it． 8 （b）Classify，sketc...
- (a) What is lower critical temperature and upper critical temperature of steel? Define the temperature range in which annealing and normalizing processes are carried out for hypo eutectoid and hyper eutectoid steels with reference to lower and upper ...
- (b) How does the cooling rate influence the final microstructure and properties of the specimen subjected to annealing and normalising?
- (a) Explain the classification, composition, properties and uses of (i) steel based on carbon content (ii) stainless steel (iii) high speed steel.
- (b) What is ductile cast iron?
- (a) Explain how the presence of alloying elements alters the general properties of steel.
- (b) Differentiate between the properties of white cast iron and gray cast iron.