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These 10 free CPRM questions are organized by exam domain, so you can see how each part of the Certified Professional in Rangeland Management blueprint is tested. Reveal the answer and explanation under each question.
During a shortgrass-prairie inventory, a tufted perennial grass lacks stolons and bears two short flowering branches. Tightly packed spikelets line one side of each branch, producing a curved, comb-like outline. Which identification fits these features?
Correct answer: C - Blue grama (Bouteloua gracilis)
A pasture's forage budget supports the current herd, but cattle repeatedly graze streamside plants before those plants recover. Level uplands remain lightly used, and the stream is the only drinking-water source. There is no active bank failure. The ranch can provide reliable upland water and daily herding. Which adjustment most directly addresses the uneven defoliation?
Correct answer: A - Add upland water and use herding to redistribute grazing, then check streamside plant recovery.
A restoration specification requires 9 lb of pure live seed per acre on 40 acres. Two lots of the same native grass meet the required seed-source and other quality specifications. Lot A is 90% pure seed with 80% germination and costs $4.32 per bulk pound. Lot B is 80% pure seed with 75% germination and costs $3.90 per bulk pound. Neither lot includes credited hard or dormant seed. Which purchase meets the seeding specification at the lowest total seed cost?
Correct answer: B - 500 bulk lb of Lot A for $2,160
Several cattle become weak and stagger after grazing a dense patch of positively identified larkspur. Their instability worsens when riders approach. A veterinarian is on the way and can reach the cattle by vehicle; further feeding on the plants can be prevented without driving the animals. Which handling plan is appropriate while veterinary help is en route?
Correct answer: C - Keep the affected cattle quiet and bring veterinary care to their location.
At a pre-calving assessment, healthy mature beef cows and heifers approaching their first calving both average body condition score 5 on the 1-9 scale. Calving is about two months away, and the groups can be fed separately. Supplemental energy is limited. Which feeding priority best reflects the different demands of these groups?
Correct answer: D - Maintain the mature cows near their present condition and move the first-calf heifers toward score 6.
A grass-shrub site burned repeatedly and became dominated by invasive annual grasses. Livestock have been excluded for six years, including several favorable growing seasons. Monitoring still shows connected bare interspaces, surface-soil loss, few surviving perennial bunchgrasses, and little perennial recruitment. Which interpretation best explains the failure to recover?
Correct answer: A - Annual-grass and soil feedbacks may now maintain a different state; restoring perennial recruitment and soil function may require active treatment.
A rancher cuts a bunchgrass stand to a uniform height just after reproductive stems elongate. On the clipped plants, seedhead production stops in reproductive tillers, but vegetative tillers continue producing leaves. Which difference in the position of shoot apices accounts for this response?
Correct answer: C - Vegetative shoot apices stayed near the crown, while reproductive shoot apices rose above the clipping height.
A federal agency has completed an environmental assessment for a proposed rangeland water development. A categorical exclusion does not apply. The completed analysis supports a determination that the action will not have significant environmental effects, and the applicable review requirements have been met. Which document records why an environmental impact statement is not required?
Correct answer: B - A finding of no significant impact supported by the environmental assessment.
An analyst reviewing line-point intercept data finds that the individual species' foliar-cover percentages sum to 118%. The field protocol records every species touched by the pin, counting a species only once at each point. A check of the original records finds no duplicate entries or calculation errors. How should the analyst handle the total?
Correct answer: D - Retain the species-cover estimates; foliage from different species can overlap above the same point.
A disturbed rangeland seedbed has a saturated-paste electrical conductivity of 7.2 dS/m and a sodium adsorption ratio of 19. Infiltration is still adequate, and drainage has been verified. The reclamation plan calls for leaching with low-salt, low-sodium water. What change is needed to reduce the risk of losing soil structure during leaching?
Correct answer: A - Provide a soil-test-based soluble calcium amendment before or during leaching to address excess sodium.
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