water treatment

Question 1

are particles of foreign matter present in water

Answer 1

sediment

Question 2

is the accumulated residue produce from impurities in the water

Answer 2

sludge

Question 3

is the collection of high alkaline material that leads to breakdown and weakening of boiler metal

Answer 3

caustic embrittlement

Question 4

is the deterioration of the boiler metal by chemical reaction of the oxygen and carbon dioxide in the water

Answer 4

corrosion

Question 5

is the collection of calcium carbonate and magnesium carbonate deposited on the water side of the heating suface

Answer 5

scale

Question 6

hydraulics turbine cutters

Answer 6

scale in the water tube boiler can be removed by

Question 7

wire brush and vacuum cleaner

Answer 7

soot inside of boiler tubes can be removed by

Question 8

over heating the boiler metal

Answer 8

scale deposit in an hrt boiler can caused

Question 9

Po4= phosphate

Answer 9

what chemical is added to the boiler water to change mineral

Question 10

sodium sulfite= naso3

Answer 10

what chemical is added to the boiler water to combat rust an

Question 11

zeolite

Answer 11

what mineral is used to soften water

Question 12

caustic soda

Answer 12

what chemical is added to the boiler water to control alkali

Question 13

caustic soda and phosphate

Answer 13

what chemicals are added to the boiler water to prevent scal

Question 14

metal

Answer 14

acidic water removes

Question 15

caustic embrittlement

Answer 15

high alkalinity water can lead to

Question 16

metal to crack

Answer 16

caustic embrittlement can cause

Question 17

wearing away of metal

Answer 17

impingement is

Question 18

force caused by a rotating impeller that builds up in a centrifugal pump

Answer 18

centrifugal force

Question 19

process whereby steam turns back to water after the removal of heat

Answer 19

condense