CCA (CERTIFIED CROP ADVISOR) EXAM AND PRACTICE
EXAM NEWEST 2026 TEST BANK| CERTIFIED CROP
ADVISOR EXAM PREP WITH COMPLETE 650 REAL EXAM
QUESTIONS AND CORRECT VERIFIED ANSWERS/
ALREADY GRADED A+ (BRAND NEW!!)
Which of the following sunflower insects overwinter in the larvae
stage?
Stem weevil
Sunflower head moth
head clipper-weevil
Seed weevil
All of the above ......ANSWER......stem weevil, sunflower head moth,
head clipper-weevil, seed weevil
An acre-furrow slice of soil (6-7 inch depth) weighs approximately:
100,00lbs
500,000lbs
1,000,000lbs
2,000,000lbs ......ANSWER......2,000,000 pounds
pg. 1
,A silt loam soil can typically provide plants about ______" of available
water per foot of soil. ......ANSWER......2
Which of the following factors is least important in soil erosion by
water?
Length of slope
Crop residue cover
Soil fertility levels
Steepness of slope ......ANSWER......soil fertility levels
Soil clay particles:
Have a net negative charge
Have a net positive charge
have no electrical charge
Attract anions ......ANSWER......have a net negative charge
Plant nutrient ions having a positive charge are called:
......ANSWER......cations
Soils with a relatively low cation exchange capacity (for example, 1 to 10
meq/100g) can generally be expected to have a:
Low water holding capacity
high clay content
pg. 2
,High organic matter content
High lime requirement ......ANSWER......low water-holding capacity
Which of the following materials is NOT a limiting material?
Calcium carbonate
Magnesium carbonate
Calcium sulfate
Calcium oxide ......ANSWER......calcium sulfate
Soil pH:
Measures the H+ concentration absorbed to soil CEC sites
Tells if lime is needed to raise soil pH
Indicates how much lime is needed to raise soil pH
Is strongly influenced by soil texture ......ANSWER......tells if lime is
needed to raise soil pH
Each decrease of one soil pH unit results in soil acidity:
......ANSWER......increasing by 10-fold
Buffer pH:
Measures the H+ concentration absorbed to soil CEC sites
Tells if lime is needed to raise soil pH
Indicates how much lime is needed to raise soil pH
pg. 3
, Is strongly influenced by soil texture ......ANSWER......indicates how
much lime is needed to raise soil pH
Electrical conductivity of irrigation water provides an estimate of:
Na content of water
Ca content of water
NaCl content of water
pH of water ......ANSWER......salt content of the water
Which soil would have the poorest soil structure?
Calcareous
Saline
Sodic
Saline-sodic ......ANSWER......sodic soil
Which practices are needed to reclaim a saline soil?
Gypsum app and excess irrigation water
Calcium carbonate app and excess irrigation water
Excess irrigation water
Lower fert rates and manure app ......ANSWER......excess irrigation
water
pg. 4
EXAM NEWEST 2026 TEST BANK| CERTIFIED CROP
ADVISOR EXAM PREP WITH COMPLETE 650 REAL EXAM
QUESTIONS AND CORRECT VERIFIED ANSWERS/
ALREADY GRADED A+ (BRAND NEW!!)
Which of the following sunflower insects overwinter in the larvae
stage?
Stem weevil
Sunflower head moth
head clipper-weevil
Seed weevil
All of the above ......ANSWER......stem weevil, sunflower head moth,
head clipper-weevil, seed weevil
An acre-furrow slice of soil (6-7 inch depth) weighs approximately:
100,00lbs
500,000lbs
1,000,000lbs
2,000,000lbs ......ANSWER......2,000,000 pounds
pg. 1
,A silt loam soil can typically provide plants about ______" of available
water per foot of soil. ......ANSWER......2
Which of the following factors is least important in soil erosion by
water?
Length of slope
Crop residue cover
Soil fertility levels
Steepness of slope ......ANSWER......soil fertility levels
Soil clay particles:
Have a net negative charge
Have a net positive charge
have no electrical charge
Attract anions ......ANSWER......have a net negative charge
Plant nutrient ions having a positive charge are called:
......ANSWER......cations
Soils with a relatively low cation exchange capacity (for example, 1 to 10
meq/100g) can generally be expected to have a:
Low water holding capacity
high clay content
pg. 2
,High organic matter content
High lime requirement ......ANSWER......low water-holding capacity
Which of the following materials is NOT a limiting material?
Calcium carbonate
Magnesium carbonate
Calcium sulfate
Calcium oxide ......ANSWER......calcium sulfate
Soil pH:
Measures the H+ concentration absorbed to soil CEC sites
Tells if lime is needed to raise soil pH
Indicates how much lime is needed to raise soil pH
Is strongly influenced by soil texture ......ANSWER......tells if lime is
needed to raise soil pH
Each decrease of one soil pH unit results in soil acidity:
......ANSWER......increasing by 10-fold
Buffer pH:
Measures the H+ concentration absorbed to soil CEC sites
Tells if lime is needed to raise soil pH
Indicates how much lime is needed to raise soil pH
pg. 3
, Is strongly influenced by soil texture ......ANSWER......indicates how
much lime is needed to raise soil pH
Electrical conductivity of irrigation water provides an estimate of:
Na content of water
Ca content of water
NaCl content of water
pH of water ......ANSWER......salt content of the water
Which soil would have the poorest soil structure?
Calcareous
Saline
Sodic
Saline-sodic ......ANSWER......sodic soil
Which practices are needed to reclaim a saline soil?
Gypsum app and excess irrigation water
Calcium carbonate app and excess irrigation water
Excess irrigation water
Lower fert rates and manure app ......ANSWER......excess irrigation
water
pg. 4
