Final Flashcards

0
Q

Most conservative KAPA formula is

A

B 31G

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1
Q

KAPA diameter of the pipe increases The maximum allowable pressure goes

A

Down

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2
Q

Most conservative to most liberal formula for K APA

A

B 31G; modified B 31G; effective area method

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3
Q

Define MOP

A

Maximum operating pressure as specified by the manufacture of the pipe

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4
Q

Define MAP

A

Maximum allowable pressure is calculated using measurements of remaining wall thickness and pit depths

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5
Q

Define PF

A

This is a calculated pressure at which a failure is predicted due to condition of the pipe and other factors pressure should never exceed this level

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6
Q

Define factor of safety

A

Variable used in the calculation of the PF an MAP that is based on factors such as population environment location and other safety concerns the more risk to life or environment the lower the MAP will be calculated

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7
Q

If MOP is higher then MAP

A

MAP takes precedence

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8
Q

If MAP is higher then MOP

A

MOP takes precedence

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9
Q

If PF is lower than the MOP or the MAP

A

PF takes precedence

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10
Q

Magnesium Zinc and aluminum; Most electronegative potential

A

Most anodic; most active; least cathodic; least Noble

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11
Q

Copper platinum carbon graphite; Most electropositive metal

A

Least Anodic; least active; most cathodic; most noble

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12
Q

The point at which water will not accumulate

A

Critical velocity

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13
Q

How many gallons in a barrel?

A

42 gallons

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14
Q

In KAPA when the wall thickness decreases the MAP

A

Decreases

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15
Q

How many quarts in a gallon

A

4 quarts in a gallon

16
Q

How many pints in the quart

A

2 pints in a quart

17
Q

How do you calculate parts per million

A

Divide by 1 million

19
Q

Iron counts: When the iron count increased by five times the corrosion rate almost?

A

Quadrupled this is almost a directly proportional rate

20
Q

Scaling tendencies: data shows that as the pH decreases; the scale index

A

Decreases

20
Q

Scaling tendencies: data shows that as temperature decreases to 77° the scale index _________; but as the temperature decreases below 76°F the scale index______________

A

Increases; decreases

21
Q

Iron counts: When the water production almost tripled the corrosion rate almost?

A

Tripled this reflects a directly proportional rate

23
Q

Scaling tendencies: data shows that as the alkalinity decreases; the scale index__________

A

Decreases

24
Q

Scale tendencies: Data shows that as the calcium decreases; the scale index _________

A

Decreases

25
Q

Scaling tendencies: the data shows that as total dissolved solids (TDS) increases; The scale index_______

A

decreases