Construction Materials Interview Freshers Online Exam Quiz
Construction Materials Interview Freshers GK Quiz. Question and Answers related to Construction Materials Interview Freshers. MCQ (Multiple Choice Questions with answers about Construction Materials Interview Freshers
What is minimum cement content for concrete permanently under sea water to avoid the corrosion of reinforcement?
Options
A : 5 kN/m3
B : 5 N/m3
C : 3 kN/m3
D : 3 N/m3
___________ corrosion takes place at or near the room temperature when the metal comes into contact with moisture or with aqueous solutions of salt, acids or bases.
Options
A : Direct corrosion
B : Dry corrosion
C : Galvanic corrosion
D : Electrochemical corrosion
________ is the commonly accepted theory of corrosion.
Options
A : Direct corrosion
B : High temperature oxidation
C : Electrochemical corrosion
D : Galvanic action theory
The ____________ is the simplest corrosion produced by means of chemical attack.
Options
A : Electrolytic theory
B : Chemical action theory
C : Galvanic action theory
D : High temperature oxidation
The _______ corrosion occurs when two dissimilar metals are in electrical contact with each other and exposed to an electrolyte.
Options
A : Galvanic corrosion
B : High temperature oxidation
C : Dry corrosion
D : Electrochemical corrosion
The ________ water tends to develop dampness and inflorescence of the concrete structures.
Options
A : Lake
B : Mineral
C : Sea
D : River
The term ________ is define as an act or process of gradual wearing away of a metal due to chemical or electro chemical reaction by its surrounding such that the metal is converted into an oxide, salt or some other compound.
Options
A : Precipitation
B : Dissolution
C : Erosion
D : Corrosion
It is found that the _______ water does not lead to corrosion of reinforcement, provided the concrete is dense and there is enough cover to the reinforcement.
Options
A : Sewage
B : Fresh
C : River
D : Sea
One of the important effects of the collision is the formation of _______
Options
A : Slug
B : Cracks
C : Gases
D : Shine
The ________ is most liable to corrosion.
Options
A : Steel
B : Aluminium
C : Copper
D : Nickel
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