Corrosion Engineering Eight Forms Selective Leaching Online Exam Quiz
Corrosion Engineering Eight Forms Selective Leaching GK Quiz. Question and Answers related to Corrosion Engineering Eight Forms Selective Leaching. MCQ (Multiple Choice Questions with answers about Corrosion Engineering Eight Forms Selective Leaching
What is the percent of zinc that consists of common yellow brass?
Options
A : 70%
B : 30%
C : 40%
D : 60%
Which of the following is/are the other names of selective leaching?
Options
A : Dealloying
B : Parting
C : Dealloying and parting
D : Neither dealloying nor parting
Which of the following phenomenon that results in the dissolution of iron by leaving porous graphite on the surface of grey cast iron?
Options
A : Dezincification
B : Decalcification
C : Graphitization
D : Dezincification and graphitization
Which of the following is/are the benefits of selective leaching?
Options
A : Enrichment of silicon on stainless steel for better passivity
B : Preparation of Raney nickel catalyst
C : Extraction of metals using hydrometallurgy
D : Enrichment of silicon on stainless steel for better passivity, preparation of Raney nickel catalyst and extraction of metals using hydrometallurgy
Which of the following type of cast irons that exhibits graphitization?
Options
A : Grey cast iron
B : Nodular cast iron
C : Malleable cast iron
D : Grey cast iron, nodular cast iron, and malleable cast iron
Which of the following acid that results in selective removal of aluminum in aluminum bronzes?
Options
A : Hydrochloric acid (HCl)
B : Hydrofluoric acid (HF)
C : Nitric acid (HNO3)
D : Hydrochloric, hydrofluoric and nitric acid
Which of the following is/are the types of dezincification?
Options
A : Layer-type
B : Plug-type
C : Layer-type and Plug-type
D : Neither Layer-type nor Plug-type
Which of the following type of brasses is/are highly prone to localize or plug-type dezincification?
Options
A : Low brasses
B : High brasses
C : Low and high brasses
D : Neither low nor high brasses
Which of the following type of brasses is/are highly prone to the uniform or layer-type dezincification?
Options
A : Low brasses
B : High brasses
C : Low and high brasses
D : Neither high nor low brasses
Which of the following is/are the preventions of dezincification?
Options
A : Minimizing oxygen concentration
B : Use of less susceptible alloy
C : Adding a small amount of arsenic, antimony
D : Removal of oxygen concentration, use of less susceptible alloy and adding a small amount of arsenic, antimony
Chemical Engineering Basics - Part 1 more Online Exam Quiz
Corrosion Engineering Eight Forms Filiform Corrosion
Corrosion Engineering Eight Forms Galvanic Corrosion 1
Corrosion Engineering Eight Forms Hydrogen Damage
Corrosion Engineering Eight Forms Intergranular Corrosion 1
Corrosion Engineering Eight Forms Pitting Corrosion
Corrosion Engineering Eight Forms Stress Corrosion
Corrosion Engineering Eight Forms Uniform Corrosion
Corrosion Engineering Entrance Exams