Material Science And Metallurgy (3131904) MCQ

MCQs of Corrosion of Metal And Alloys

MCQ No - 1

What is meant by corrosion?

(A)

Chemical reaction between anode, cathode and electrolyte, which leads to loss of metal

(B)

Deterioration of metals due to reaction with its environment

(C)

Both a. and b.

(D)

None of the above


C
MCQ No - 2

Which type of chemical reaction is observed at cathode, in electrochemical corrosion?

(A)

Oxidation reaction

(B)

Peretectic reaction

(C)

Reduction reaction

(D)

None of the above


C
MCQ No - 3

Which of the following corrosions are caused due to velocity of fluid flow in pipes?

(A)

Bimetal corrosion

(B)

Cavitation corrosion

(C)

Galvanic corrosion

(D)

Intergranular corrosion


B
MCQ No - 4

Corrosion fatigue is a combined effect of _____

(A)

Corrosive environment and mechanical stresses

(B)

Cyclic loading and corrosion

(C)

Velocity and mechanical stresses

(D)

None of the above


B
MCQ No - 5

The erosion corrosion can be controlled by _______

(A)

increasing the flow velocity through pipes

(B)

increasing temperature of fluid

(C)

minimizing turbulence

(D)

all of the above


C