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Tentamen (uitwerkingen)
PRACTICE EXAM 1 KEN TESH QUESTIONS AND ANSWERS
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---17mei 20242023/2024A+
- PRACTICE EXAM 1 KEN TESH QUESTIONS AND ANSWERS 
 
 
1.	What is static head? 
A)	The total equivalent height that a pump lifts water, including friction loss 
B)	Friction loss 
C)	The vertical distance between a reference point to the water surface, when the water is not moving 
D)	The horizontal distance between a reference point to the water: The vertical distance between a reference point to the water surface, when the water is not moving. 
2.	How long must water remain stagnant and undisturbe...
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NURSEBRUCE
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Tentamen (uitwerkingen)
D1 & D2 PRACTICE EXAM 1
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---6mei 20242023/2024A+
- What is static head? - Answer-The vertical distance between a reference point to the water surface, when the water is not moving. 
 
How long must water remain stagnant and undisturbed in the pipe before a first-draw sample is collected for lead and copper analysis? - Answer-At least 6 hours 
 
If at least 40 samples per month are collected from a public water system, what is the minimum percentage of routine/repeat samples that must test negative for total coliform? - Answer-95% 
 
If the water...
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