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Material and Corrosion in Refineries

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1.
1 point
The following factors play vital role in corrosion process
2.
1 point
In waterline corrosion highly oxygenated parts acts as:
3.
1 point
This form of corrosion occurs due to concentration difference in a component:
4.
1 point
Cathodic protection works by:
5.
1 point
In a corrosion cell, the electrode that corrodes is the:
6.
1 point
Lower is PH corrosion is:
7.
1 point
Volatile oxidation corrosion product of a metal is:
8.
1 point
Difficult to monitor and very dangerous form of corrosion: A)
9.
1 point
The electrolyte is a substance, either liquid or solid, capable of:
10.
1 point
Which of the following does not come under the category of electrochemical corrosion:
11.
1 point
The type of corrosion cell formed by coupling two different types of metal together is called:
12.
1 point
Process of corrosion enhanced by:
13.
1 point
The degree of acidity and alkalinity in water is measured by:
14.
1 point
In differential aeration corrosion, poor oxygenated parts are:
15.
1 point
The corrosion process increases when:
16.
1 point
The type of corrosion cell formed by coupling two different types of metal together is called:
17.
1 point
Which of following metals could provide cathodic protection to Fe:
18.
1 point
Under certain circumstances, hydrogen atoms or gas may slow down the corrosion reaction by blocking the migration of hydrogen ions This is called:
19.
1 point
Pitting corrosion is a __________ accelerated attack:
20.
1 point
Which of the following can be used for cathodicprotection:
21.
1 point
A substance which is capable of conducting an electric current is the:
22.
1 point
Standard electrode potential of Al / Al3+ is:
23.
1 point
Standard electrode potential of Fe2+/Fe is:
24.
1 point
Which of the following gases accelerates rusting of iron:
25.
1 point
The type of corrosion cell that forms by exposing pipe to different amounts of salt or oxygen in the soil is called:
26.
1 point
In which of the following would you suspect to find the highest corrosion rate?
27.
1 point
Corrosion inhibitors work by:
28.
1 point
Paints which are used to restrict corrosion are known as:
29.
1 point
In a corrosion cell, the electrode that does not corrode is the:
30.
1 point
Erosion corrosion is more likely to occur in:
31.
1 point
From the list provided, select the one thing that must be present for a corrosion cell to exist
32.
1 point
Standard electrode potential of Zn2+/ Zn is:
33.
1 point
Corrosion of metals involves:
34.
1 point
Corrosion fatigue is most common on:
35.
1 point
Standard electrode potential of hydrogen is:
36.
1 point
What is the relationship between temperature and corrosion rate?
37.
1 point
Relative humidity above which atmospheric corrosion rate of metal increases sharply is known as:
38.
1 point
A low pH (under 7) is an indication that the solution is:
39.
1 point
Chemical formula of Rust is:
40.
1 point
Electrochemical corrosion takes place on:
41.
1 point
When rust forms on a steel pipe, the rust:
42.
1 point
In galvanic series, a metal high in series is more _________:
43.
1 point
Main form of ceramic degradation:
44.
1 point
In corrosion control, the term “scavenging" refers to the removal of:
45.
1 point
A special steel must be used in sour crude locations to reduce:
46.
1 point
Smaller the grain size, corrosion is:
47.
1 point
Corrosion is:
48.
1 point
When Pt and Co are electrically connected, which one gets corroded:
49.
1 point
In corrosion terms, a holiday is defined as:
50.
1 point
Which of the following metal does not resists the corrosion process
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