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Texas Farm Commodity/Structural Fumigation > Texas Farm Commodity/Structural Fumigation > Flashcards

Texas Farm Commodity/Structural Fumigation Flashcards

1
Q

Fogging and fumigation are the same thing and give the same results.

A

False

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2
Q

During a fumigation, each gas molecule moves seperately.

A

True

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3
Q

Gas molecules can move both between and within fibers or molecules of wood or other materials.

A

True

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4
Q

Fumigation affects our lives by…

A

Ridding the soil of organisms that could attack seeds, protecting grain supplies, protecting flour mills and other processing plants, (all of the above)

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5
Q

Fumigants are the only pesticides that can effectively penetrate through thick wood to kill hidden insect infestations.

A

True

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6
Q

Fumigants kill insects, but cannot hurt humans.

A

False

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7
Q

Fumigation would be a good way to prevent a later infestation.

A

False

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8
Q

Disadvantages of fumigants include…

A

Lack of residual properties, potential damage to copper by one fumigant, potential damage to seed germination by one fumigant, (all of the above)

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9
Q

Possible alternatives to fumigation include…

A

Extreme heat, IPM, Extreme Cold, (all of the above)

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10
Q

Fumigation might be used to control…

A

Drywood termites, formosan termites, wood destroying beetles such as old house borer, (all of the above)

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11
Q

Fumigation might also be used in homes to control…

A

Clothes moths, rodents, cockroaches, (all of the above)

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12
Q

Structural fumigation is not limited to homes and could include…

A

Museums, airplanes, some type of vehicles, (all of the above)

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13
Q

Structural fumigation often depends on covering something with tarps.

A

True

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14
Q

Treatment of stored grain is a commodity fumigation. However, treatment of the grain at a processing plant is a type of structural fumigation.

A

False

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15
Q

In-transit fumigation of railcars is uncommon since their loads are usually treated at the receiving point.

A

False

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16
Q

Fumigation of food plants requires…

A

A license for commodity fumigation, knowledge of FDA laws, a thorough study of the label, (all of the above)

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17
Q

Soil fumigation is a specialized treatment classified as a commodity fumigation.

A

False

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18
Q

Gas concentration is totally dependent on the dosage.

A

False

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19
Q

The accumulated hours that a concentration can be held are the key to success.

A

True

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20
Q

The time when all gas molecules are evenly distributed in space is called…

A

Equilibrium

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21
Q

The molecular weight of a gas is…

A

Important to understanding the movement of gases, suggests which gases will dissipate the fastest, can be found in the manufacturers’ literature, (all of the above)

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22
Q

Most fumigant gases are lighter than air and can be used for blimps.

A

False

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23
Q

Cold temperatures will…

A

Cause gas molecules to move slower and take longer to reach equilibrium, cause a buildup of gas molecules on or near a cold surface, cause insects to “breath” at a slower rate, (all of the above)

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24
Q

Gas detectors monitor the total gas in an enclosure, including sorbed gas.

A

False

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25
Q

All gas that is adsorbed becomes desorbed quickly during aeration.

A

False

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26
Q

As with adsorption and absorption, chemisorption can be reversed for the most part with sufficient aeration.

A

False

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27
Q

Sulfuryl fluoride is not as reactive as methyl bromide and should be used if rug padding or other materials might reach to produce an off odor.

A

True

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28
Q

Phosphine is sold in the United States under many trade names by a number of companies.

A

True

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29
Q

After aeration, phosphine tablets often have a small amount of unreacted aluminum phosphide remaining.

A

True

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30
Q

Caron dioxide is not a gas and therefore is safer to use than other fumigants.

A

False

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31
Q

Fumigation safety must be studied since fumigants can…

A

Kill fumigators, damage products or nearby materials, cause fire of explosion, produce off flavors or illegal residues, (all of the above)

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32
Q

The label is the single most important guide to safety.

A

True

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33
Q

Cotton gloves should be worn when handling phosphine products but not methyl bromide.

A

True

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34
Q

Weather can affect both the safety and the success of a fumigation.

A

True

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35
Q

Before starting a fumigation, the fumigator must first notify the…

A

Police and Fire Department

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36
Q

Aeration should be planned for safety before the fumigation is started.

A

True

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37
Q

Aeration time can be estimated and the purchase of expensive testing equipment will not be needed.

A

False

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38
Q

Expensive testing equipment is only required if many jobs are done per year.

A

False

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39
Q

Symptoms of alcohol poisoning are similar to some of the symptoms of fumigant poisoning.

A

True

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40
Q

If the fumigation label requires the fumigator to wear respiratory protection, a number of legal requirements, including a written program, must be met.

A

True

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41
Q

The employee should not work wearing a gas mask in a dangerous atmosphere until…

A

A doctor has given the employee a medical evaluation to determine if they can wear a gas mask, the employee has been fit tested by a qualified person, the employee has been trained in proper use and care of the mask, (all of the above)

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42
Q

The gas mask has only limited use in fumigation at the present time.

A

True

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43
Q

Protective equipment is not needed if the fumigator is only going to run it and open a window.

A

False

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44
Q

All respiratory equipment must be cleaned and check both before and after use.

A

True

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45
Q

SCBA tanks can be refilled at a gasoline service station.

A

False

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46
Q

The length of time that a SCBA can be used will vary with the exertion of the operator.

A

True

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47
Q

Respirators shall be selected on the basis of hazards to which the worker is exposed.

A

True

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48
Q

SCBA units are very expensive and are required only if the fumigator is working inside a fumigated building.

A

False

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49
Q

An experienced fumigator can accurately guess the fumigant concentration level without checking.

A

False

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50
Q

The halide leak detector can locate leaks of sulfuryl fluoride.

A

False

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51
Q

The same Fumiscope could give concentration readings of methyl bromide or sulfuryl fluoride.

A

True

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52
Q

Draeger and similar detector tubes can give both high and low readings of phosphine.

A

True

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53
Q

The Interscan is the primary instrument used to “clear” a building in Texas.

A

True

54
Q

If an Interscan is not available, the fumigator can merely add 2 hours to the aeration time.

A

False

55
Q

Phosphine levels can be checked with…

A

Detector tubes and pump such as the Draeger, the Gas-Tech unit, the Micro-max (any of the above)

56
Q

Methyl bromide aeration can be monitored with…

A

Detector tubes

57
Q

Drywood termite infestations can be identified when the inspector sees…

A

Wings or winged forms of drywood termites, soldiers of drywood termites, droppings of drywood termites, wood damaged by drywood termites, (all of the above)

58
Q

Any small pellet falling out of a roof joist would be drywood termite pellets.

A

False

59
Q

Subterranean termite swarmers will have two heavy veins at the front of the wings and drywood termites will have three or more.

A

True

60
Q

Formosan termite swarmer wings can be distinguished by…

A

Small hairs on the surface of the wing.

61
Q

A soldier termite with a straight-sided head and a pronotum that is almost the same size as the head would be…

A

A drywood termite.

62
Q

Wood damage without mud and fecal matter glued to the surface would have to be drywood termite damage.

A

False

63
Q

Infestations of wood boring beetles cause considerable damage throughout Texas.

A

False

64
Q

Identification of wood destroying beetle damage depends on…

A

The type of wood attacked, the size of the hole made, and the shape of the hole.

65
Q

If wood destroying insects are found in a house, the only proper treatment is fumigation.

A

False

66
Q

If a house has many wings, it still is easy to figure the total volume by figuring each wing separately and then adding up all of the units.

A

True

67
Q

The area to be fumigated in the average house is only the living space.

A

False

68
Q

The most commonly used structural fumigants are…

A

Methyl bromide and sulfuryl fluoride

68
Q

The most commonly used commodity fumigants are…

A

Methyl bromide and phosphine

68
Q

It is important to kill the eggs of drywood termites during a fumigation.

A

False

68
Q

For safety reasons, chloropicrin should always be used with methyl bromide during commodity fumigation.

A

False

68
Q

Aeration of methyl bromide is complete in homes when detection tubes show less than 5 ppm concentration.

A

False

69
Q

Methyl bromide, if spilled on shoes, gloves, or clothing and not immediately removed, can burn the skin.

A

True

69
Q

Measuring the average height is an easy way to avoid separate measurements for the attic.

A

True

70
Q

Using the Fumiguides can help the fumigator use less gas and actually save money.

A

True

71
Q

Most fumigators use the same dosage of fumigant, so there is no point of using the Fumiguides.

A

False

72
Q

The Fumiguides are only as accurate as the facts entered. Condition of tarps and other factors must be entered honestly.

A

True

73
Q

The Optifume is an electronic device that performs all the functions of both Fumiguide B and Fumiguide Y.

A

True

74
Q

The duties of the client during a structural fumigation include…

A

Paying the bill, removing items that could be harmed, agreeing that certain plants could be harmed, (all of the above)

75
Q

The job graph should show…

A

The size and shape of the structure, steepness and condition of the roof, name and address of the client, any unusual conditions, (all of the above)

76
Q

A treatment might need to be postponed if…

A

Rains have made the roof slick, excessive moisture causes condensation problems, the certified fumigator is not available, the temperature of the infested area is below 40 degrees, (any of the above)

77
Q

The fumigation truck needs to be placarded because of the fumigant on board.

A

True

78
Q

If the customer was assigned the job of removing materials that could be damaged, the fumigator is relieved of any responsibility to check further.

A

False

79
Q

Handling the fumigant is the most dangerous part of the job and results in the most injuries.

A

False

80
Q

The only way to get tarps on the roof is the carry them on your back while climbing a ladder.

A

False

81
Q

Clamps can be spaced 2 feet apart most of the time.

A

False

82
Q

Sand snakes are poisonous.

A

False

83
Q

Since you are working outside with the cylinder of sulfuryl fluoride, no protective equipment is needed.

A

False

84
Q

Insects attacking whole kernel grain and completing their development inside kernels are classified as:

A

Primary

85
Q

To provide the least favorable condition for insect development, grain should be stored with a moisture content of:

A

12 percent or less

86
Q

Avicides are not specific and:

A

May be toxic to a number of different species.

87
Q

Birds are not protected by:

A

Federal law, state law, local ordinance, (all of the above)

88
Q

The three commensal rodents may be separated from our native rodents by:

A

Their tails

89
Q

Anticoagulants are poisons which:

A

Slow the clotting of blood.

90
Q

Selection of bait for rat control is:

A

Not important because rats are omnivorous, not influenced by the species of rats present, not related to selection of appropriate rodenticide (NONE of the above)

91
Q

It is important to know if an insect can fly.

A

True

92
Q

You should never apply a protectant insecticide to grain that will be heat dried.

A

True

93
Q

The volume of most buildings with flat roofs can be calculated by multiplying the length times the width times the height.

A

True

94
Q

Ounces per 1000 cu. ft. would be twice as much as grams per cubic meter.

A

False

95
Q

Milligrams per liter would be virtually the same amount as ounces per 1000 cu. ft.

A

True

96
Q

The ppm is always 10,000 times more than the percent by volume.

A

True

97
Q

The area of a circle is calculated with the formula…

A

3.14 x the square of the radius.

98
Q

The concentration of phosphine can be doubled to shorten the exposure time in half.

A

False

99
Q

The phrase LD99 refers to the concentration and time required to kill 99 percent of a test population.

A

True

100
Q

A knowledge of the metric system is important if the fumigator wants to read scientific studies.

A

True

101
Q

Trucks and containers can be fumigated in-transit on railroad flat cars as long as they are aerated before traveling on the highway.

A

True

102
Q

Rail yards are dangerous places to work. Safety procedures may include…

A

Activating signal lights to show that men are working on a particular car, using rail clamp signals to avoid having the car picked up while you are working, always having two people on every fumigation, (all of the above)

103
Q

If a boxcar has holes in the wooden floor, an effective fumigation will be difficult to achieve.

A

False

104
Q

Sealing the doors with tape provides an adequate seal for in-transit fumigation.

A

False

105
Q

Polyethylene tarps can be used to cover the doorways and they can be held up with…

A

Spray adhesive

106
Q

The packages of fumigant can be tossed into the car just before it is sealed.

A

False

107
Q

Hopper cars are good fumigation chambers.

A

False

108
Q

The fumigant is completely spent at the time of arrival and can be tossed into a dumpster.

A

False

109
Q

Semitrailers are metal and hold gas well most of the time.

A

False

110
Q

Truck trailers have such a small volume of space that fans are not needed for methyl bromide.

A

False

111
Q

Phosphine may not be effective with a 3-day fumigation.

A

True

112
Q

When 100 percent control is needed, it may be necessary to tarp the trailer.

A

True

113
Q

The tarp can always be sealed to asphalt or hard dirt surfaces well enough to give control.

A

False

114
Q

Tarp fumigations of commodities can fail because…

A

Phosphine might not kill all insects in only 3 days (if that time was used), the wrong fumigant could have been used, the gas stratified due to lack of fans, (any of the above)

115
Q

Techniques in placing tarps are important and include…

A

Achieving a tight seal to the floor, choosing an area that will permit tight sealing to the floor, folding rather than rolling the corners on inside treatments, folding excess tarp on the top so that a good seal can be made at the bottom, (all of the above)

116
Q

Tarping and fumigating only a few stacks in a room where other infestations exist will probably permit re-infestation.

A

True

117
Q

If the humidity is very low, phosphine may not be effective.

A

True

118
Q

If methyl bromide is used, the tarp should fit tight on the top and the gas should be shot at the bottom.

A

False

119
Q

Tarp fumigations can be done in occupied warehouses without worry.

A

False

120
Q

Shipping containers often have vents in the four corners that can be missed by the fumigator.

A

True

121
Q

Shipping containers containing fumigant that will be loaded on board a ship must meet strict requirements.

A

True

122
Q

If the hatch doors are water tight, they are also air tight.

A

False

123
Q

Record keeping will require, among other things…

A

The name of the fumigant gas and amount, identification number of container treated, date and time treated, (all of the above)

124
Q

If methyl bromide is used to fumigate a shipping container, the container must be aerated before it can be shipped.

A

True

125
Q

Methyl bromide should always be shot in at the top of a container and, unless a heat exchanger is used, the cargo should be protected with a plastic sheet or a shooting pan.

A

True

Texas Farm Commodity/Structural Fumigation (1 decks)

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