1)During the design phase for new water boxes for a titanium condenser the desig

Question

1)During the design phase for new water boxes for a titanium condenser the design engineer would probably take the _____ _____ rate into consideration before the wall thickness is specified.

Select one:

a. General Corrosion

b. Localized Corrosion

MIC would be classified as:

Select one:

a. Localized Corrosion

b. General Corrosion

2)Describe what a Cation Exchange Resin does

Select one:

a. Removes positive (+) ions hydroxyl

b. Removes both positive and negative ions

c. Removes negative (-) ions

3)

If an Anion Exchange Resin in the Hydroxide form removes a chloride anion what ion would be released into the process stream?

Select one:

a. [OH-]

b. [H+ ]

4)

The by-product of removing a Cl- and a Na+ from the condensate system by using a mixed bed DI would be

Select one:

a. NaCl

b. H2O

5)

PWR. What impurity is normally listed as the major contributor for general corrosion in PWR?

Select one:

a. Dissolved Oxygen

b. NaCl

c. Dissolved hydrogen

6)

To keep iron corrosion rates low you would want to keep your systems pH in the ________range

Select one:

a. Neutral range

b. Acidic range

c. Basic range

d. Nothing much

7)

PWR. The major chemical used to control biological growth is

Select one:

a. Hydrozine

b. Sodium Hypochlorite

c. Amonia

8)

BWR. The major method of impurity removal from reactor plant water is

Select one:

a. boron activation products

b. ion exchange process

c. Zinc injection

Explanation / Answer

2) a - a cation exchange process,only positive ions are removed

6) a - neutral range ph (4-10) is best suitable for keeping corrosion rates very low

7) b - Sodium hypochlorite is mainly used for control of biological growth while the rest are used for purification processes only

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