Corrosion Engineering Written Test Online Exam Quiz
Corrosion Engineering Written Test GK Quiz. Question and Answers related to Corrosion Engineering Written Test. MCQ (Multiple Choice Questions with answers about Corrosion Engineering Written Test
Which of the following materials have superior corrosion resistance and high rupture strength in mercury?
Options
A : 5% chromium steels
B : Si-Cr-Mo steels
C : 5% chromium steels and Si-Cr-Mo steels
D : Carbon steels
Which of the following parameter is taken as Xin the given graph regarding corrosion of various metals in liquid-metal corrosion?
Options
A : Atomic weight
B : Weight loss
C : Solubility percentage
D : Atomic number
Which of the following is/are the types of mass transfer due to liquid-metal corrosion?
Options
A : Composition-gradient mass transfer
B : Thermal-gradient mass transfer
C : Neither composition nor thermal gradient mass transfer
D : Both composition and thermal gradient mass transfer
Which of the following is/are undesirable in heat-exchange systems handling liquid metals?
Options
A : Deposition of impurities in cool areas
B : Resistance to heat transfer
C : Formation of brittle intermetallic compounds, resistance to heat transfer and deposition of impurities in cool areas
D : Formation of brittle intermetallic compounds
Which of the following type of stainless steels are attacked by magnesium at its melting point?
Options
A : Duplex stainless steels
B : Austenitic stainless steels
C : Martensitic stainless steels
D : Ferritic stainless steels
Which of the following types of steel coatings is/are preferred for automobile body parts?
Options
A : Galvanized steels
B : Electroplated steels
C : Galvanized steels, electroplated steels and complete immersion of corrosion preventing primer coat
D : Complete immersion of corrosion preventing primer coat
Which of the following materials shows good resistance to both liquid-metals and high-temperature oxidation?
Options
A : High alloy stainless steels
B : Monel
C : Hastelloy
D : Hastelloy, high alloy stainless steels and monel
Which of the following alloys is/are usually used for sodium hydroxide fused salt?
Options
A : Nickel-based alloys
B : Copper-based alloys
C : Ferrous alloys
D : Zinc based alloys
Which of the following parameter has a direct relation with the corrosion rate in liquid metals?
Options
A : Percentage of alloying elements
B : Solubility of the metallic structure in liquid metal
C : Solubility of alloying elements in metallic matrix
D : Percentage of oxygen
Which of the following is/are the types of liquid-metal corrosion?
Options
A : Solution of structural metal
B : Diffusion of liquid into solid metal
C : Intermetallic compound formation
D : Solution of structural metal, diffusion of liquid into solid metal and intermetallic compound formation
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