WATER TREATMENT OIT ACTUAL LATEST

WATER TREATMENT OIT ACTUAL LATEST

EXAM - H 150+ REAL

QUESTIONS AND WELL VERIFIED ANSWERS

|ALREADY GRADED A+ |GUARANTEED

PASS!!

The purpose of the jar test is to determine the - ANSWER-Correct amount of coagulant to use for proper coagulation.

The indicator methyl orange is used in the test for - ANSWER-Alkalinity.

Hardness in water is caused mainly by the presence of - ANSWER-Calcium and magnesium compounds.

Water that is high in sulfate can cause - ANSWER-Diarrhea.

The effluent weir of a clarifier is located along the rim of a 60-ft-diameter tank.The length of the weir is _____ ft. - ANSWER-188 ft.

A number of grab sample test results that are averaged together constitute - ANSWER-An average concentration.

• / 3

The term aeration is defined as bringing water into intimate contact with - ANSWER-Air.

A chlorine cylinder valve is thought to be leaking. If ammonia vapor is passed near the valve. The presence of a leak would be indicated by. - ANSWER-White smoke.

If a fire hydrant requires a nozzle pressure of 100 psi, what head of water must be used to supply it? - ANSWER-231 ft

A water main should be disinfected. - ANSWER-After the pipe is laid in place.

Carbon dioxide in water will. - ANSWER-Lower pH.

A pneumatic ejector lifts water from low points to higher levels. The device used to achieve this is a(n). - ANSWER-Air compressor.

Pressure is commonly measured in. - ANSWER-Pounds per square inch.

Mechanical seals are being installed in pumps because. - ANSWER-Packing requires an undesirable leakage that seals eliminate.

A major cause of pump and motor shaft coupling wear is a. - ANSWER- Misalignment between pumps and motor flanges.

Filters in water treatment process are primarily for removing or reducing. - ANSWER-Turbidity.

• / 3

A water treatment plant receives an average Flo of 261 gpm. What is the daily total flow to the plant? - ANSWER-0.38 mgd.

The free chlorine residual in water is the amount of. - ANSWER-Uncombined chlorine that remains in the water after the chlorine has been applied and allowed to react.A tank holding 2340 gal fills in 12 min. The rate of flow is ____ gpm. - ANSWER- 195 gpm.

The chlorine room should be constructed so it can be entered only from the - ANSWER-Outside of the building.When collecting a distribution-system sample for bacteriological testing, the person collecting the sample should allow the water to run _______ before filling the sample bottle. - ANSWER-as long as necessary to clear service line

A chemical commonly used to raise PH is. - ANSWER-Lime.

Black stains on plumbing fixtures might be attributable to. - ANSWER- Manganese.

One kilogram equals _____ grams. - ANSWER-1000

The indicator organisms used to determine contamination of drinking water are. - ANSWER-Coliform group.

The packing around the shaft of a centrifugal pump should be. - ANSWER- Tightened just enough to allow an occasional drop of liquid to escape.

The chemical symbol for iron is. - ANSWER-Fe.

• / 3