38- Anodic protection is done by. .*O a- applying an external current.O b- coupling with an active metal.39- Anodic protection is done by convertingthe metal from... *a- the active state to the passive state.O b- the active state to the inert state.40- Anodic protection is done by..a- increasing the corrosion potential(Ecorr).b- decreasing the corrosion potential(Ecorr).

Corrosion occurs due to the contact of metals with water vapor. When an anode or cathode comes in…

Answered: 38- Anodic protection is done by . O a-…

Engineering

Mechanical Engineering

38- Anodic protection is done by . O a- applying an external current. O b- coupling with an active metal.

Welding: Principles and Applications (MindTap Course List)

8th Edition

ISBN:9781305494695

Author:Larry Jeffus

Publisher:Larry Jeffus

Chapter33: Brazing, Braze Welding, And Soldering

Section: Chapter Questions

Problem 34R: Why is brazing a better process than welding to rebuild some surfaces?

See similar textbooks

Related questions

Q: The ___________ layer provides corrosion resistancefor the automobile.

A: Corrosion resistance is the parameter or ability of a substance to prevent the deterioration of the…

Q: Galvanized shet has a protective coating of- -in steel shects. Sodium Aluminum Magnesium Oc Zinic

A: Galvanization or galvanizing is the process of applying a protective zinc coating to steel or iron,…

Q: Two stainless steel foils of 0.2 mm to be joined. Which of the following process is best suited? MIG…

A: The correct answer is plasma arc welding. Welding of stainless steel foils of 0.2 mm require…

Q: Briefly explain the anodizing process with a neat diagram. b). Write the application of anodizing…

A: The electrochemical process of transforming the metal’s surface into somewhat more durable, esthetic…

Q: 1. Why Cast Iron is used: a) Water pipes .. b) Sewerage pipelines (.. c) Beds of machines such as…

A: As per our guidelines, experts can provide solution to only one problem in case of multiple…

Q: How many wires are normally connected to adouble-filament light bulb?

A: In double filament light bulbs, two filaments, which are independent to each other are used. Double…

Q: :Dry Corrosion consider as Both None Physical reactions Electrochemical reactions

A: Dry corrosion: The dry corrosion or oxidation occurs when the oxygen present in the air reacts with…

Q: In brazing process the joint strength is generally_ a welded joint: * None of the mentioned Larger…

A: Brazing Process :- Filler metal will be flowing into the joint between base metals and filler metals…

Q: What happens if the particulate resistivity is too low in an ESP?

A: Resistivity, which is a characteristic of particles in an electric field, is a measure of a…

Q: Lubrication is a method to reduce friction between surfaces that are in close contact and helps to…

A: This statement is (True)

Q: Mechanical assembly is carried using ___________ components. a. Nuts and bolts. b. Gas welding c.…

A: Mechanical assembly means joining of two or more parts together. In other words Mechanical assembly…

Q: A process that can be used to plate non-metals with a metal is:

A: Vacuum deposition is the process in which the material is deposite on the surface of the object in…

Q: What type of insulation is used in modern freezers? b) Which is the most sensitive detector?

A: Polyurethane rigid foam is the insulating material that is most widely used throughout the world…

Q: Filiform corrosion.

A: Filiform corrosion is a corrosion that occurs under some thin coating the form of randomly…

Q: Identify the wrong statement from the following O The radiation and hotness produced during welding…

A: [ 1 ] REQUIREMENT OF WELDING ARE GOOD SHOES WITH RUBBER SOLE ,SO THAT TO AVOID SLIPPING . GOOD…

Q: Galvanizing is a process of coating the low carbon steel with a layer of zinc. Select one: True…

A: Different types of rust preventive processes used in engineering applications are: Powder Coating…

Q: What is Metal Panel Cladding.

A: Given Metal panel cladding To find Definition

Q: The type of corrosion that happed in screws and nuts application is O Fatigue corrosion O Crevice…

A: The type of corrosion that usually occurs in the application of screws and nuts is galvanic…

Q: What is Hazard and why it is important?

Q: Which one of the following is not the polycrystalline materials O a. Copper wire O b. steel O c.…

A: Polycrystalline materials are those solids which are composed of many individual grains or…

Q: d.2. Which of the following types of grounding electrodes was one of the first grounding electrodes…

A: Answer: (2) (D) Rod and pipe Answer: (3) (D) To safeguard against electrical hazards.

Q: Which of the following gases are most frequently used as shielding to provide an inert atmosphere in…

A: It is required to choose correct option

Q: The shielding gas used on carbon steel is ____. A. Helium B.Argon C. Argon, or a mixture of…

A: The shielding gas used on carbon steel is CO2, or a mixture of CO2 and Argon option D will be…

Q: 10)The process of the solder molecules combining with the molecules of the metals being soldered is?…

A: To find : the process of the solder molecules combining with the molecules of the metals being…

Q: Galvanizing is a process of coating the low carbon steel with a layer of zinc. Select one: O True O…

A: Answer: True

Q: False True Zinc, Lead, Tin, and Others.1 - Examples of Corrosion- Resistant Metals Copper is heavier…

A: Solution: Note: Dear Student! As per our guidelines, we are only allowed to answer three sub-parts…

Q: In tipped tool, inserts are having - material. O a. tool holder O b. different O C. same o d.…

A: in tipped tool, inserts are having material. O a. tool holder O b. different O c. same O d. brazing…

Q: What is the main disadvantage of platinum spark plugs?

A: Spark plugs are the important component of combustion engines. There are various types of spark…

Q: A pocket milled in the base of part A. Design of ared which will articulatewith part Band which will…

A: To mill a pocket in part A(base) , one should be aware of the process of the pocket milling. Pocket…

Q: Role of cellulose in coatings of SMAW electrode is

A: Explanation Role of cellulose in coatings of SMAW electrode is burn when welding is taking place and…

Q: 5) Coating factor in heavily coated electrode generally ranges in O From 1.2 to 1.35 From 1.4 to 1.7…

A: Heavily coated electrode is used in Shielded arc welding . Coated electrode is used because - It…

Q: II- The bi-metallic thermome variation. (a) very high, (b

A: Bimetal thermometers work on the principle based upon the different expansion rates of different…

Q: Which among the following gas welding flame is used for welding Zinc and its alloys? a. Oxidizing…

A: Oxidising flame is produced when the amount of oxygen supplied is more than the one volume of the…

Q: Wiring harnesses are typically shielded by plasticconduit. What color is normally used to shield…

A: SRS is the abbreviated form of supplemental restrain system. these are the wiring or connectors are…

Q: Resistance-welding processes make use of the heat generated electrical resistance to achieve fusion…

A: Resistance-welding processes make use of the heat generated by electrical resistance to achieve…

Q: 6) Which of the following statement(s) is/are correct? i. Metal working at room temperature means…

A: The method of changing the shape and size of metals to obtain desired objects is known as metal…

Q: 4) Flux coatings in SMAW electrode helps in

A: Solution:

Q: made of steel with elasti d with the help of free be

A: Diameter of bolt, d=10 mm,Cross section of rectangular plate, A=12 mm× 7 mmTension in the bolt,…

Q: Why might IAV become less harmful with time?

A: There's a lot of evidence suggesting the innate immune response to the influenza A virus (IAV)…

Q: Which of the following is an example of structural technology? Welding The pillars running through…

A: Option b is correct.

Q: Among the following materials, which one is non-metal а. Соpper O b. Alluminium O C. Steel O d.…

Concept explainers

Corrosion control methods

Corrosion may be defined as the method in which metals are attacked on their exteriors by gases existing in the atmosphere, converting them to their oxides, nitrides, sulfides, etc.

Question

38- Anodic protection is done by. .
*
O a- applying an external current.
O b- coupling with an active metal.
39- Anodic protection is done by converting
the metal from... *
a- the active state to the passive state.
O b- the active state to the inert state.
40- Anodic protection is done by..
a- increasing the corrosion potential
(Ecorr).
b- decreasing the corrosion potential
(Ecorr).

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

SEE SOLUTION Check out a sample Q&A here

Step 1

Step 2

Step 3

Step 4

Step by step

Solved in 4 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, mechanical-engineering and related others by exploring similar questions and additional content below.

Similar questions

Lubrication is a method to reduce friction between surfaces that are in close contact and helps to prevent corrosion. Select one: True False
Classification of corrosion that occurs when materials are exposed to gaseous environment.
Describe different types of protection mechanism against corrosion.
In HRSG why we need to replace and add the VCI to prevent the inside corrosion form moisture in air. And what is (Light Machine Oil) To protect from corrosion of HRSG modules etc. Can you explain further.
Which of the following elements remains as a predominant element for corrosion resistant? a. Molybdenum b. Nickel c. Chromium d. Tunsten
25/. Why the study of chemical properties of engineering materials is necessary? Define corrosion and write any two corrosion resistant materials.
Topic Corrosion Rate Defined and Explain what is ASTM G102? Standard Practice for Calculation of Corrosion Rates and Related Information from Electrochemical Measurements
The following factors play vital role in a corrosion process a. Temperature b. none of these c. Solute concentration d. Both temperature and solute concentration
What is Corrosion Prevention and Control?
The subject is corrosion and protection of materials.
1. Which of the following is not true about Corrosion? A. Corrosion is a natural process that converts a refined metal into a more chemically stable formB. It is the gradual destruction of materials (usually a metal) by chemical and/or electrochemical reaction with their environmentC. Corrosion engineering is the field dedicated to controlling and preventing corrosionD. Corrosion is the abrupt destruction of materials by chemical and/or electrochemical reaction with their environment 2. Which of the following cannot prevent corrosion? A. alloyingB. TinningC. Galvanizing D. moisture
Explain these factors that affect electrochemical corrosion rate 1). Impurities 2). Presence of air and water 3). Highly reactive metals