Question

Question 1 (1 point) Reactor water chemistry is monitored closely for chlorides. is used? To prevent build up of chloride in the reactor water which of the following method of contra feed and bleed nse deaeration of makeup water degasification to remove the resulting chlorine gas formed by excess chlorides addition of boron to form boron trichloride, which is easily removed via ion exchange Save Question 6 (1 point) As corrosion products and suspended solids are accumulated over the service run, the bed may clog due to buildup of corrosion products and suspended solids. Which of the following problems is associated with this? differential pressure decreases and conductivity decreases differential pressure decreases and flow rates increases differential pressure increases and the DF increases differential pressure increases and flow rates decreases Save Question 2 (1 point) One of the parameters monitored for in reactor water chemistry is boron. Which of the following is a reason for boron addition? to control reactivity to protect pumps to inhibit corrosion to preclude caustic stress corrosion Save Question 4 (1 point) Why is excess hydrogen maintained in the reactor water? Hydrogen is used as a scavenger to remove any trace dissolved oxygen. Hydrogen reacts with most negative ion impurities, which makes the deionization process more efficient Hydrogen will combine with oxygen preventing the oxygen from being irradiated as it passes through the reactor core. Hydrogen will combine with free hydrogen atoms molecules in the water minimizing general corrosion in the primary system. Save Question 5 (1 point)

Answer 1

Question 1. prevent the chloride buildup in the rector, the following method is used,

Degasification to remove the resulting chlorine gas formed by excessive chlorides.

Question 6. Corrosion products and suspended solids are accumulated over the service run, the problem associated with it is,

Differential pressure increases and flow rate decreases.

Due to the clogging the pressure drop between two ends increases so differential pressure between two points increases and as a result of that the flow rate decreases.

Question 2. Boron addition is done,

To control reactivity.

Boron has the capability to reduce the collisions and control the reaction rate.

Question 4. Excess hydrogen gas is maintained in the reactor water because,

Hydrogen reacts with most ion beam impurities, which makes the deionization process more efficient.

Hydrogen makes the deionization process more efficient and as a result of that, the shutdown can be maintained more effectively.