BRAE 236 Final Review questions with
complete solutions A+ rated
Vineyards (frost control) - correct answer ✔✔Sprinklers - solid set
Micro irrigation - micro sprayers
Sudan grass in the Imperial Valley - correct answer ✔✔Surface - border strip
Mid-west farming practices with high rainfall and low labor resources - correct answer
✔✔Sprinklers - Center Pivot
Odd shaped field and Pistashios - correct answer ✔✔Microirrigation - micro sprayers
Microirrigation - drip (traditional hoses)
Cotton in the San Joaquin Valley on undulating ground - correct answer ✔✔Sprinklers - hand
move
Microirrigation - row crop drip
Vegetables in area with high soil salinity - correct answer ✔✔Sprinklers - hand move
Sprinklers - solid set
Microirrigation - row crop drip
Vegetables in area with high erodible soils - correct answer ✔✔Microirrigation - row crop drip
Microirrigation - drip (traditional hoses)
,Orchards and vineyards (irrigation for plant needs, not frost control) - correct answer
✔✔Microirrigation - micro sprayers
Microirrigation - drip (traditional hoses)
Alfalfa on relatively flat fields with a good labor supply - correct answer ✔✔Surface - border
strip
Sprinklers - hand move
Potatoes with shallow soils - correct answer ✔✔Sprinklers - solid set
Sprinklers - Center Pivot
Microirrigation - row crop drip
Low labor availability on alfalfa - correct answer ✔✔Sprinklers - Center Pivot
Surface - border strip
Peppers on the Central Coast - correct answer ✔✔Microirrigation - row crop drip
Microirrigation - drip (traditional hoses
Strawberries at the time of transplanting - correct answer ✔✔Microirrigation - row crop drip
Sprinklers - solid set
Applying chemicals (like fertilizers) into the irrigation water - correct answer ✔✔Microirrigation
- micro sprayers
Microirrigation - row crop drip
Microirrigation - drip (traditional hoses)
, Cotton in the San Joaquin Valley on relative level fields - correct answer ✔✔Surface - furrow
(modern)
What should you do before entering the field? - correct answer ✔✔Obtain a piping layout from
the grower or trace one from a Google Earth printout
What time do you put for the "collection time" on the data sheet? - correct answer ✔✔The
total time that each bucket stays under each emitter
Which test location has tests performed for both DUother and DU due to differences in
pressure? - correct answer ✔✔Location A
Which of the following is an example of a situation where DUspacing would be less than 1.0? -
correct answer ✔✔Plants with different ET requirements
How many DU values are averaged in the DUother equations (in other words, how many tests
are performed for DUother)? - correct answer ✔✔Three
If Emitter A and Emitter B have the same flow rate at 15 psi, which would have a higher flow
rate at 20 psi?
Emitter A - standard turbulent path emitter x = 0.55
Emitter B - pressure compensating emitter x = 0.00 (above 10 psi) - correct answer ✔✔Emitter A
What is the approximate "x" value of PC emitters (above their minimum pressure)? - correct
answer ✔✔Zero
How should you hold the gauge while taking pressure measurements? - correct answer ✔✔At
the same elevation of the hose (at the operating level of the hose)
complete solutions A+ rated
Vineyards (frost control) - correct answer ✔✔Sprinklers - solid set
Micro irrigation - micro sprayers
Sudan grass in the Imperial Valley - correct answer ✔✔Surface - border strip
Mid-west farming practices with high rainfall and low labor resources - correct answer
✔✔Sprinklers - Center Pivot
Odd shaped field and Pistashios - correct answer ✔✔Microirrigation - micro sprayers
Microirrigation - drip (traditional hoses)
Cotton in the San Joaquin Valley on undulating ground - correct answer ✔✔Sprinklers - hand
move
Microirrigation - row crop drip
Vegetables in area with high soil salinity - correct answer ✔✔Sprinklers - hand move
Sprinklers - solid set
Microirrigation - row crop drip
Vegetables in area with high erodible soils - correct answer ✔✔Microirrigation - row crop drip
Microirrigation - drip (traditional hoses)
,Orchards and vineyards (irrigation for plant needs, not frost control) - correct answer
✔✔Microirrigation - micro sprayers
Microirrigation - drip (traditional hoses)
Alfalfa on relatively flat fields with a good labor supply - correct answer ✔✔Surface - border
strip
Sprinklers - hand move
Potatoes with shallow soils - correct answer ✔✔Sprinklers - solid set
Sprinklers - Center Pivot
Microirrigation - row crop drip
Low labor availability on alfalfa - correct answer ✔✔Sprinklers - Center Pivot
Surface - border strip
Peppers on the Central Coast - correct answer ✔✔Microirrigation - row crop drip
Microirrigation - drip (traditional hoses
Strawberries at the time of transplanting - correct answer ✔✔Microirrigation - row crop drip
Sprinklers - solid set
Applying chemicals (like fertilizers) into the irrigation water - correct answer ✔✔Microirrigation
- micro sprayers
Microirrigation - row crop drip
Microirrigation - drip (traditional hoses)
, Cotton in the San Joaquin Valley on relative level fields - correct answer ✔✔Surface - furrow
(modern)
What should you do before entering the field? - correct answer ✔✔Obtain a piping layout from
the grower or trace one from a Google Earth printout
What time do you put for the "collection time" on the data sheet? - correct answer ✔✔The
total time that each bucket stays under each emitter
Which test location has tests performed for both DUother and DU due to differences in
pressure? - correct answer ✔✔Location A
Which of the following is an example of a situation where DUspacing would be less than 1.0? -
correct answer ✔✔Plants with different ET requirements
How many DU values are averaged in the DUother equations (in other words, how many tests
are performed for DUother)? - correct answer ✔✔Three
If Emitter A and Emitter B have the same flow rate at 15 psi, which would have a higher flow
rate at 20 psi?
Emitter A - standard turbulent path emitter x = 0.55
Emitter B - pressure compensating emitter x = 0.00 (above 10 psi) - correct answer ✔✔Emitter A
What is the approximate "x" value of PC emitters (above their minimum pressure)? - correct
answer ✔✔Zero
How should you hold the gauge while taking pressure measurements? - correct answer ✔✔At
the same elevation of the hose (at the operating level of the hose)
