Which of the following describes galvanic corrosion? Select one: a. Two metals/alloys of different compositions are coupled while exposed to an electrolyte. b. Oxidation and reduction reactions occur randomly over the surface. c. Localized corrosion that may be initiated at a surface defect. d. Corrosion that results from a difference in concentration of ions or dissolved gases in the electrolyte. e. Corrosion that occurs preferentially along grain boundaries. f. Corrosion resulting from the combined action of chemical attack and mechanical abrasion or wear. g. One element is preferentially removed as a result of corrosion. h. Corrosion resulting from the combined action of an applied tensile stress and a corrosive environment.

Which of the following describes galvanic corrosion? Select one: a. Two metals/alloys of different compositions are coupled while exposed to an electrolyte. b. Oxidation and reduction reactions occur randomly over the surface. c. Localized corrosion that may be initiated at a surface defect. d. Corrosion that results from a difference in concentration of ions or dissolved gases in the electrolyte. e. Corrosion that occurs preferentially along grain boundaries. f. Corrosion resulting from the combined action of chemical attack and mechanical abrasion or wear. g. One element is preferentially removed as a result of corrosion. h. Corrosion resulting from the combined action of an applied tensile stress and a corrosive environment.

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

See similar textbooks

Related questions

Q: Which is(are) the method(s) of removing temporary hardness from the following options: Boiling…

A: There are two types of hardness that are present in water, that is, temporary and permanent…

Q: There are some sources in materials which result in electrical resistivity, some of those sources…

A: The correct answer is:a. All options

Q: The rate of corrosion in a galvanic cell can be reduced by: a. Increasing the temperature of the…

A: Reducing cathodic surface area compared to anodic surface area, leads to reduction in cathodic…

Q: As an engineer you are asked to evaluate the feasibility of a device which operates in a temperature…

A: Given, E = 70 GPa or 70000 MPa σmax = 100 MPa

Q: At pH 5-7 aluminum hydroxide is O readily exceeding water quality limits for aluminum O leaving a…

A: 1. At pH 5-7, aluminum hydroxides are in their least soluble form. At a pH range of 5-7, the…

Q: [14] Electrolysis process is based on : * thermal effect of current O chemical effect of current O…

A: Answer : Chemical effect of current.

Q: In term of stability and based on standard electrode potentials, which one of the following metals…

Q: Which compound is liberates higher heat at 3 days from the hydration Tetra calcium Aluminoferrite…

A: Tetra calcium aluminoferrite:It reacts with water at a greater rate and evolves a significant amount…

Q: 4.22 Discuss galvanic corrosion of aluminum. How can aluminum be protected from galvanic corrosion?

A: What is Galvanic Corrosion of Aluminium? Galvanic Corrosion is the corrosion induced when two…

Q: If the Ksp of Sn(OH)2 (s) is 5.33 x 10-27, what is the solubility of it in the unit of mg/L?

A: Apply formula for solubility We will find solubility in mol/L from formula Then we have to convert…

Q: 3 Induction hardening and flame hardening are two heat treatment methods that can be used to…

A: Option A) is correct Induction hardening uses an electric current to very rapidly generate heat via…

Q: The density of platinum is 21500 kg/m³ and that of aluminum is 2702 kg/m³. Find the ratio of the…

Q: Which of the following statements about recrystallisation of metals are true? Select one or more: O…

A: Answer We know that Recrystallisation temperature is 0.3 - 0.4 times melting point for metals and…

Question

Which of the following describes galvanic corrosion?
Select one:
a. Two metals/alloys of different compositions are coupled while exposed to an electrolyte.
b. Oxidation and reduction reactions occur randomly over the surface.
c. Localized corrosion that may be initiated at a surface defect.
d. Corrosion that results from a difference in concentration of ions or dissolved gases in the electrolyte.
e. Corrosion that occurs preferentially along grain boundaries.
f. Corrosion resulting from the combined action of chemical attack and mechanical abrasion or wear.
g. One element is preferentially removed as a result of corrosion.
h. Corrosion resulting from the combined action of an applied tensile stress and a corrosive environment.

Expert Solution

Step 1

Option (A) is correct

That is two metals are alloys of different compositions are coupled while exposed to an electrolyte.

Trending now

This is a popular solution!

Step by step

Solved in 2 steps

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, civil-engineering and related others by exploring similar questions and additional content below.

Similar questions

Scission can be defined as. a. The loss of fragments from the surfaces of ceramic materials due to internal or residual stress b. An increase in the volume of a polymeric materials caused by the absorption of glass or liquid. c. The formation of crystalline regions in amorphous network ceramics. d. The fracture of long chain molecules in polymers subjected to neutron irradiation or radiation by ultraviolet light
A teapot with a surface area of 665 cm2 is to be plated with silver. It is attached to the negative electrode of an electrolytic cell containing silver nitrate (Ag+ NO3−). The cell is powered by a 12.0-V battery and has a resistance of 1.30 Ω. If the density of silver is 1.05 104 kg/m3, over what time interval does a 0.133-mm layer of silver build up on the teapot?
Calculate the dosage of activated carbon to reduce an influent (flowrate = 10 mgd) concentration of 300 µg/L of chloroform to 100 µg/L using powder
What is the estimated corrosion rate, in mm/year, of stainless steel used in industrial oxygen piping?
When the exponential trend line of iron concentration vs time is y=4.2 exp(-0.24x) x is time in min and y is concentration of phen iron complex solution.
Which statement is NOT true about the aging of the asphat
[14] Electrolysis process is based on : * thermal effect of current chemical effect of current luminous effect of current magnetic effect of current
2.
Lamiar flow takes place in acircular Lube. At what distance from the boundary does the local velcity equal the average Velocity-
A magnesium-lead alloy of mass 6.4 kg consists of a solid a phase that has a composition just slightly below the solubility limit at 300°C (570°F). The magnesium-lead phase diagram is shown in Animated Figure 9.20. (a) What mass of lead is in the alloy? i kg (b) If the alloy is heated to 400°C (750°F), how much more lead may be dissolved in the a phase without exceeding the solubility limit of this phase? kg
Define the term redox reaction.
materials absorb shock or energy and they give warning prior to failure. a. Ductile O b. Concrete O c. inorganic materials O d. Brittle