For a flash type evaporator, the seawa

1、In the operation of a flash type evapo

In the operation of a flash type evaporator equipped with air ejectors,the air and non- condensable gases are evacuated directly from the （）....

2、In a flash evaporator, scale as a resu

In a flash evaporator, scale as a result of higher than normal temperatures in most likely to occur in the （）Asecond stage feed heaterBsaltwater feed heaterCdistillate coolerDsecond stage vapor separator

3、In a flash type evaporator, the brine

In a flash type evaporator, the brine overboard pump is vented directly to the（）Asaltwater heater shellBthe condensation of the saltwater feedCair ejectors, eductors, or a separate vacuum pumpDcondensation of the distillate

4、In a flash type evaporator, all saltwa

In a flash type evaporator, all saltwater headers are vented through individual vent cocks to the（）.Asaltwater heater shellBsecond-stage condenserCatmosphereDsecond-stage flash chamber

5、The efficiency of a flash type evapora

The efficiency of a flash type evaporator can be increased by（）Alowering brine discharge densityBdecreasing the absolute pressure of each stageCincreasing the saltwater feed heater temperatureDincreasing the pressure at the spray pipe

6、On a multistage flash-type evaporator,

On a multistage flash-type evaporator, the flash chamber is （）Acombined as part of the salt water feed heaterBthe open area above the brine ...