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QAL Category Study Guide Questions With Answers

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QAL Category Study Guide Questions With Answers

Institution
QAL Laws And Regulations
Course
QAL Laws and Regulations

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QAL Category Study Guide Questions
// // // //




With Answers
// // //




What is a fumigant - CORRECT ANSWERS(S)✔✔• Gases
// // // // // // //




liquid, solids
// // //




• Odorless and invisible
// // // //




• Toxic when absorbed or inhaled
// // // // // //




• Spread & penetrate spaces & materials
// // // // // // //




• Non-selective pesticide (kills all)
// // // // //




• Concentration, time, temp & humidity
// // // // // //




• No residual or post application protection
// // // // // //




• Forms
// //




// • Cylinders
// //




// • CO2: Carbon Dioxide: treat stored commodities,
// // // // // //



// containment structures, and outdoor burrowing rodents // // // // //




// • SO2: sulfur dioxide: wine barrels, corks, certain
// // // // // // //



// commodities


Pros vs Cons - CORRECT ANSWERS(S)✔✔• PROS
// // // // // //

,• Toxic to all pests
// // // // //




• Reach pest otherwise hard to locate, apply other
// // // // // // // //



pesticides
// //




• Can kill pest on/near foods w/o residual
// // // // // // // //




• Practical way to kill commodity pests
// // // // // // //




• CONS
//




• Very toxic
// // //




• No post application protection
// // // // //




• Expensive PPE
// // //




• Applicators must be skilled: labor cost high
// // // // // // // //




• Applications require supervision to be effective
// // // // // //




Common fumigants: // //




• Sulfuryl fluoride
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• Carbon Dioxide (CO2)
// // // //




• Methyl bromide
// // //




• MITC & MITC generating fumigants
// // // // // //




• Sulfur Dioxide (SO2)
// // //

, Fumigant distribution in a space - CORRECT
// // // // // //




ANSWERS(S)✔✔• Molecular weight: measure of the
// // // // // //




weight of the atoms that forma particular substance
// // // // // // // // //




• Specific gravity: ratio of the density of a substance to the
// // // // // // // // // // //



density of a standard
// // // // //




// • Standard for gas = 1
// // // // // //




// • Greater then 1 = heavier than air, sinks
// // // // // // // // //




// • Less then 1 = lighter than air, rises
// // // // // // // // //




• MW and SG: tell you
// // // // // //




// • SF = 3.52
// // // //




// • Labeled required fans to evenly distribute AI
// // // // // // //




Volatility & Vapor pressure - CORRECT ANSWERS(S)✔✔•
// // // // // //




Volatility: describes how a substance turns to vapor
// // // // // // // // //




• Vapor: measurement of the push against the atmosphere
// // // // // // // // //




• Vapor pressure: pressure stabilize at a constant value
// // // // // // // //




// • Higher vapor pressure = more concentrated = better
// // // // // // // //



// fumigant
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QAL Laws and Regulations
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