_______ is used to convey water from the mainline to furrows in a surface irrigation
system where it is then discharged through small adjustable openings in the pipe. -
ANS-Gated Pipe
________impellers can pass the largest debris but have lower pressure capabilities. -
ANS-Open
________is the rapid rise in pressure within pipes in any water system created by the
rapid change in velocity of the water - ANS-Water hammer
A _________ is a series of graphs made by pump engineers providing information
about out put characteristics of the pump. - ANS-Pump Curve
A head of 11.55 feet is equal to how many psi? - ANS-5
A pipe used to convey water from a source ditch to a furrow without use of a pump -
ANS-siphon tube
A polymer used in soil erosion - ANS-polyacrylamide
A tank at the top of the hill is used to supply irrigation water to a turnip field. The
elevation difference is 45 feet. Will the resulting pressure be suitable for a wheel line
sprinkler system? Why or why not? - ANS-No, the Psi is not high enough.
P=.433H Pressure= 19 PSI
A type of impeller with a full front and back shroud. - ANS-Closed
A_______is a number that provides a measure of safety to indicate the maximum
amperage draw or horsepower this motor is capable of producing. - ANS-Service factor
Another word for multiple impellers stacked on another with their own housing in a line
shaft turbine is_____ - ANS-bowls
Application of water over a field without definite channels or direction - ANS-Flood
irrigation
clumping together of soil particles into a larger mass - ANS-flocculation
Groundwater is withdrawn by a pump from an - ANS-aquifer
, Head means? - ANS-height of water above a certain point
How can you tell what the rated power of an electric motor is? - ANS-Look on its
nameplate
How do you know which way the impeller spins? - ANS-Always look through the eye of
the impeller.
How many gallons are in 1 foot3 of water? - ANS-7.5
How many watts per horsepower? - ANS-746 watts/hp
How much does 1 gallon of water weigh - ANS-8.33 lbs
How much water does 1 ft2 of water weigh - ANS-62.5 lbs
HP for single phase motors - ANS-Up to 7.5
HP for triple phase motors - ANS-anything greater than 7.5
Indicates how much temporary overload a motor is capable of operating under. -
ANS-Duty Cycle
Intermittent application of water to a head ditch or pipe - ANS-Surge irrigation
Minimizing the number of tillage passes across a field to conserve OM -
ANS-conservation tillage
Most industrial pumps run on what phase of power? - ANS-Three
Movement of water into soil - ANS-infiltration
NPSH - ANS-Net positive Suction head.
-pressure under which water will enter the eye of the impeller
Polyacrylamide is used for ______ control. - ANS-Erosion
PPI - ANS-A micro sprinkler fitting
system where it is then discharged through small adjustable openings in the pipe. -
ANS-Gated Pipe
________impellers can pass the largest debris but have lower pressure capabilities. -
ANS-Open
________is the rapid rise in pressure within pipes in any water system created by the
rapid change in velocity of the water - ANS-Water hammer
A _________ is a series of graphs made by pump engineers providing information
about out put characteristics of the pump. - ANS-Pump Curve
A head of 11.55 feet is equal to how many psi? - ANS-5
A pipe used to convey water from a source ditch to a furrow without use of a pump -
ANS-siphon tube
A polymer used in soil erosion - ANS-polyacrylamide
A tank at the top of the hill is used to supply irrigation water to a turnip field. The
elevation difference is 45 feet. Will the resulting pressure be suitable for a wheel line
sprinkler system? Why or why not? - ANS-No, the Psi is not high enough.
P=.433H Pressure= 19 PSI
A type of impeller with a full front and back shroud. - ANS-Closed
A_______is a number that provides a measure of safety to indicate the maximum
amperage draw or horsepower this motor is capable of producing. - ANS-Service factor
Another word for multiple impellers stacked on another with their own housing in a line
shaft turbine is_____ - ANS-bowls
Application of water over a field without definite channels or direction - ANS-Flood
irrigation
clumping together of soil particles into a larger mass - ANS-flocculation
Groundwater is withdrawn by a pump from an - ANS-aquifer
, Head means? - ANS-height of water above a certain point
How can you tell what the rated power of an electric motor is? - ANS-Look on its
nameplate
How do you know which way the impeller spins? - ANS-Always look through the eye of
the impeller.
How many gallons are in 1 foot3 of water? - ANS-7.5
How many watts per horsepower? - ANS-746 watts/hp
How much does 1 gallon of water weigh - ANS-8.33 lbs
How much water does 1 ft2 of water weigh - ANS-62.5 lbs
HP for single phase motors - ANS-Up to 7.5
HP for triple phase motors - ANS-anything greater than 7.5
Indicates how much temporary overload a motor is capable of operating under. -
ANS-Duty Cycle
Intermittent application of water to a head ditch or pipe - ANS-Surge irrigation
Minimizing the number of tillage passes across a field to conserve OM -
ANS-conservation tillage
Most industrial pumps run on what phase of power? - ANS-Three
Movement of water into soil - ANS-infiltration
NPSH - ANS-Net positive Suction head.
-pressure under which water will enter the eye of the impeller
Polyacrylamide is used for ______ control. - ANS-Erosion
PPI - ANS-A micro sprinkler fitting
