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Zinc is injected into the feedwater to reduce the ____________ on reactor coolant

Select one:

a. monitor demineralizer breakthrough

b. corrosion film buildup

c. assure no leakage from standby liquid control

Question 21

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BWR: the reason for monitoring of Conductivity in BWR coolant system is _____

Select one:

a. Stress-type corrosion cracking

b. Monitor demineralizer breakthrough

c. Assure no leakage from standby liquid control

d. Used as an indicator of general coolant purity and indicator of RCS inleakage

e. Primary chemistry monitoring parameter & simple cross check on chemical test results

Question 22

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

Select one:

a. ion exchange process

b. soluble poison addition

c. Hydrogen injection

Question 23

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Label each of the following isotopes as either “fission” or “activation” product

a)Cesium-137

b)Iron-59

c)Xenon-133

d)Manganese-56

e)Iodine-131

f)Chromium-51

a)Cesium-137
b)Iron-59
c)Xenon-133
d)Manganese-56
e)Iodine-131
f)Chromium-51

Solution

Answers

20. Corrosion Firm build up

21. Monitor Demineralizer Breakthrough.

22. ion exchange process

23.

a. Cesium-137 :: Fission

b. Iron 59 :: Activation

c. Xenon 133 :: Fission

d. manganese 56 :: Activation

e. iodine 131 :: Fission

f. Chromium 51 :: Activation