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All personnel
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Whose responsibility is it to be aware of dangers?
C) A certificate of analysis of each product should be provided
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, Which of the following can be done to protect chemical deliveries from
being a possible source of terrorist attack?
A) Vendors should provide driver identification prior to each delivery
B) Tank trucks chemical deliveries should be eliminated in favor of sealed
drums
C) A certificate of analysis of each product should be provided
D) Safety data sheet should be presented by the driver of each delivery
Sodium Thiosulphate
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Chemical name that is in the test bottles to cancel out chlorine?
C) 100 Feet in front of the workspace
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Where should a flagger be positioned when flagging?
A) Next to the flagger sign
B) Directly in front of the work area
C) 100 Feet in front of the workspace
D) 500 feet in front of the workspace
C) Above the overflow level of the tank by at least 1 in or two pipe diameter
whichever is greater
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, The discharge from my potable water supply into a concrete tank use for
distribution of irrigation water should be ?
A) Below the irrigation outlet
B) Level with the outlet
C) Above the overflow level of the tank by at least 1 in or two pipe diameter
whichever is greater
D) At least two pipe diameters above the outlet
A) Tachometer
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You can determine the shaft speed of a pump or motor with?
A) Tachometer
B) Wattmeter
C) Odometer
D) Pressure regulator
C) Seven and 10
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If a sample of water is known to be basic which buffer should be used to
standardize the ph?
A) One and five
B) Four and seven
C) Seven and 10
D) 11 and 13
B) Coliform
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The group of bacteria most widely used as an indicator of fecal
contamination is what?
A) Salmonella
B) Coliform
C) Shigella
D) Fecal strep
B) Two reduced pressure principle backflow prevention assemblies in parallel.
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If a water service with a reduced pressure principle backflow prevention
assembly cannot be shut down for testing which of the following insulation
should be done?
A) An unprotected bypass around the assembly
B) Two reduced pressure principle backflow prevention assemblies in
parallel.
C) Two reduced pressure principle backflow prevention assemblies in
series
D) Double check of valve on bypass
Increase biological & Chemical reactions
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Warmer water temperatures tend to?