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Exam (elaborations)

DPR - NON SOIL FUMIGATION EXAM QUESTIONS WITH CORRECT DETAILED ANSWERS

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2025/2026 Written for academic year
Institution DPR Non-Soil Fumigation
Course DPR Non-Soil Fumigation
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Pass the California Department of Pesticide Regulation (DPR) Non-Soil Fumigation Exam with confidence using this comprehensive study guide featuring correct, detailed answers. Covering all essential topics for certified applicators: most hazardous exposure routes (respiratory), fumigant accumulation in body tissues (methyl bromide), first aid protocols (protect yourself first with PPE), warning sign removal authorization (certified applicator in charge), volume calculations for simple structures (L×W×H) and cylinders (πr²h), gas detection devices (ambient air/IR analyzers), restricted material permits (county agricultural commissioner), CT concept (Concentration × Time = Dosage), dry cotton gloves requirement (aluminum phosphide), respirator cartridge replacement indicators, medical re-examination requirements, air-purifying respirators, load factor (sorption), tarp aeration wind direction protocol, fumigation chamber types (atmospheric/vacuum), CO2 for rodent burrows, phosphine explosion risk in vacuum chambers, sustained-vacuum fumigation, USDA-APHIS quarantine requirements, aluminum phosphide for bulk grain storage, burrowing pest setback requirements (100 feet), inactive burrow signs (partially collapsed), structural sealing methods (tape/seal, tarpaulins, clamps), spot fumigation advantages, sulfuryl fluoride for spot treatments, methyl bromide prohibition for in-transit vehicles, powderpost beetle groups (lyctids, anobiids, bostrichids), primary vs. secondary feeders, pocket gopher burrows as closed systems, brown rot fungi, CHEMTREC, compatibility, corrosive fumigants, detector tubes (colorimetric), diffusion, dosage vs. dose, dip/eductor tubes, effluent, exhaust stack, fission, green wood, half-loss time (HLT), halide leak detectors, heartwood vs. sapwood, histoplasmosis, hyphae, inert ingredients, exfiltration/infiltration, invert, lineal feet, metabolism, MGD, non-systemic pesticides, overflow, particulate matter, permit conditions, post-application summary, wood preservatives, restored pressure fumigation, restricted materials permit, sanitary sewer, soft rot, solubility, sorption, specific gravity, spores, structural fumigation, surfactant, sustained-vacuum fumigation, swale, tape-and-seal method, thermal conductivity analyzers, threshold limit value (TLV), trigger levels, treatment zone, vacuum chamber, vapor pressure, virus, volatile substances, water table, wettable powders, white rot. Perfect for DPR certification candidates, pest control advisors, and fumigation applicators.

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DPR - NON SOIL FUMIGATION EXAM QUESTIONS
WITH CORRECT DETAILED ANSWERS




The most hazardous route of exposure when using a fumigation is - ANS....
-Respiratory


This fumigant accumulates in body tissues - ANS.... -Methyl Bromide


If you need to provide first aid to a victim who has a been exposed to a
fumigation you should first... - ANS.... -Protect yourself by putting on the
required PPE


Who is allowed to remove posted warning signs after a fumigation? -
ANS.... -The Certified applicator in charge


Volume of a simple structure - ANS.... -Length X width X height


Gas detection device that measures of gases absorption of infrared
radiation - ANS.... -Ambient air analyzer


Agency responsible for ensuring restricted material permits for the use of
non-soil fumigate that is a restricted material - ANS.... -Local county
agricultural commissioner


Fumigate that uses the CT concept to calculate dosage - ANS.... -Sulfuryl
fluoride

, D= C x T - ANS.... -Dosage = Concentration x Time


Volume of a Cylinder Formula - ANS.... -πr²h


Dry cotton gloves are required when applying... - ANS.... -Aluminum
phosphide


A noticeable increase in breathing resistance when using a respirator is an
indication that... - ANS.... -Respirator cartridges should be replaced


When must a fumigant applicator be re-examined by healthcare
professional? - ANS.... -If a new style of respirator will be used


Respirators that pass ambient air through an air purifying element i.e.
filters,cartridges or canisters, to remove contaminants from the air before it
reaches the user are called... - ANS.... -Air purifying respirators


The amount of fumigant sorbed by the materials being fumigated is called
the... - ANS.... -Load Factor


If tarp aeration is outside and a breeze is blowing, the first part of the tarp
that should be lifted is there... - ANS.... -END or side OPPOSITE the
direction of wind movement


Types of fumigation chambers - ANS.... -Atmospheric and vacuum

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