Multiple Choice
Identify the
letter of the choice that best completes the statement or answers the question.
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| 1. | If
a soil pH is acidic, apply: a. | nitrogen. | c. | potassium. | b. | phosphorus. | d. | limestone. | | | | |
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| 2. | A
fumigant is a chemical in the form of a: a. | liquid. | c. | powder. | b. | gas. | d. | granule | | | | |
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| 3. | The
rinse water from cleaning chemical spray tanks should be disposed of
. a. | by emptying in a
barnyard | b. | by spraying in a field | c. | by emptying near a
stream | d. | by pouring in a ditch away from
people | | |
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| 4. | A
chemical that moves through the plant from the site of uptake is called a
. a. | contact | c. | spreader | b. | systemic | d. | creeper | | | | |
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| 5. | Herbicides that control only grasses are termed _______ herbicides. a. | selective | c. | perennial | b. | non-selective | d. | non-broad-leaf | | | | |
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| 6. | Which is true about mixing slow release fertilizer with the soil mix? a. | add the slow release fertilizer before heat
sterilizing the soil. | b. | add the slow release fertilizer after heat sterilizing the
soil. | c. | do not add slow release fertilizer with more than 10%
nitrogen to soil | d. | do not add slow release fertilizer with less than 10%
nitrogen to the soil | | |
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| 7. | Azaleas and camellias grow well in ________ soils. a. | acid | c. | alkaline | b. | basic | d. | neutral | | | | |
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| 8. | The
process of manufacturing carbohydrates from raw materials in air and water, and light
is: a. | respiration. | c. | transpiration. | b. | photosynthesis. | d. | translocation. | | | | |
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| 9. | The
only question listed below that is legal for a prospective employer to ask during an interview,
according to federal law, is: a. | do you have a boyfriend? | b. | are you married? | c. | what is your highest
degree? | d. | do you attend church | | |
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| 10. | Improved growth and quality of plants results if the level of
in the
air is raised.
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| 11. | Which plant pest can only be controlled by the use of good cultural
practices? a. | fungi | c. | virus | b. | bacteria | d. | nematodes | | | | |
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| 12. | A
hydrangea grown in a soil with a pH of 4.5 will probably bloom _________.
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| 13. | A
plant which is "root bound" should be
. a. | discarded. | c. | repotted. | b. | grown in direct
sun. | d. | fertilized. | | | | |
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| 14. | Which is often used as a biological control for aphids? a. | lady bugs | c. | plant lice | b. | sterile mealy
bugs | d. | inorganic insecticides | | | | |
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| 15. | Damping-off most often attacks: a. | mature plants. | c. | seedlings. | b. | plants over 3 weeks
old. | d. | leaves. | | | | |
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| 16. | PPM
stands for: a. | pints per
milliliter. | c. | pounds per meter. | b. | parts per meter. | d. | parts per million | | | | |
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| 17. | A
bag of 20-5-30 contains
%
nitrogen.
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| 18. | The
loss of water by evaporation through small openings in the leaves is known as: a. | translocation. | c. | transpiration. | b. | absorption. | d. | respiration. | | | | |
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| 19. | A
pH of 4 is: a. | alkaline. | c. | acid. | b. | neutral. | d. | basic. | | | | |
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| 20. | Plant pathology is the study of: a. | plant diseases. | c. | plant structure. | b. | insects. | d. | plant reproduction | | | | |
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| 21. | A
variable cost for a greenhouse or nursery budget is: a. | soil mix. | b. | payments on the
building. | c. | taxes. | d. | equipment. | | |
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| 22. | All
pots should be filled to a consistent depth in order to provide uniform: a. | watering. | c. | drainage. | b. | weed control. | d. | cooling | | | | |
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| 23. | What color indicates healthy roots on most cuttings? a. | white | c. | tan | b. | brown | d. | black | | | | |
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| 24. | Which of the following may cause or produce off-spring with varying
traits? a. | scarification | c. | stratification | b. | cross pollination | d. | use of rooting hormones | | | | |
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| 25. | What product is often used to sterilize plant beds? a. | Ammonium nitrate | c. | Methyl Bromide | b. | Cycocel | d. | Orthene | | | | |
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| 26. | Soil left from dead and diseased plants should be: a. | adjusted for pH before
reuse. | b. | discarded. | c. | allowed to dry out before
reuse. | d. | mixed thoroughly | | |
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| 27. | What is the first sign that a plant is water stressed? a. | browning of leaf tips | b. | changing color of
foliage | c. | dropping of older leaves | d. | wilting of leaves | | |
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| 28. | Backflow of water and chemicals into the pipes of the domestic water system can be
prevented by installing a(n): a. | automatic shut-off valve. | b. | check valve. | c. | gate valve. | d. | solenoid valve | | |
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| 29. | The
best time of day to water plants by overhead irrigation is: a. | early morning. | c. | at dusk. | b. | late afternoon. | d. | late night. | | | | |
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| 30. | The
process of removing harmful salts from media by flushing it with water is called: a. | deionization. | c. | translocation. | b. | leaching. | d. | vernalization | | | | |
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| 31. | Green plants need light because it: a. | is reflected to give the plant its green
color. | b. | is necessary for the manufacture of
food. | c. | reduces water loss from the
leaves. | d. | warms them to optimum temperature for
growth | | |
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| 32. | Auxins, either natural or synthetic, are most commonly applied to plants to encourage
the production of : a. | buds. | c. | leaves. | b. | flowers. | d. | roots | | | | |
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| 33. | What should be avoided when using dry fertilizer? a. | contact with the
leaves | c. | uniform application | b. | contact with the
soil | d. | watering in | | | | |
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| 34. | What do you call a mechanical device which introduces a concentrated fertilizer
solution into the pipeline used for watering plants? a. | applicator | c. | proportioner | b. | odometer | d. | pump | | | | |
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| 35. | Which analysis describes a complete fertilizer? a. | 15-0-5 | c. | 5-10-0 | b. | 10-10-10 | d. | 0-5-10 | | | | |
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| 36. | What type of gloves should be worn when handling pesticides? a. | canvas | c. | leather | b. | cloth | d. | rubber | | | | |
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| 37. | The
opening and closing of solenoid valves used in mist systems are activated by: a. | electricity. | b. | the person managing the
system. | c. | water pressure. | d. | air pressure. | | |
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| 38. | Soil samples are taken in order to: a. | determine aeration
needs | b. | measure pH. | c. | test soil for pH and nutrient
level. | d. | determine nitrogen content. | | |
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| 39. | Which is a short day plant? a. | chrysanthemum | c. | begonia | b. | salvia | d. | geranium | | | | |
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| 40. | Most florist business is by: a. | standing orders. | c. | FAX. | b. | telephone. | d. | walk-in customers | | | | |
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| 41. | The
appearance of equal weight on each side of a floral arrangement is called: a. | harmony. | c. | composition. | b. | vertical
balance. | d. | proportion. | | | | |
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| 42. | One
way you can speed up the opening of tight buds on cut flowers is by: a. | adding a dash of salt to the
water. | b. | increasing the air temperature. | c. | adding preservative and putting them in a
cooler. | d. | storing them in a dark room. | | |
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| 43. | The
reaction of plants to the length of day is called
. a. | photoperiodic
response | c. | photographic response | b. | photosynthesis | d. | translocation | | | | |
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| 44. | Growing greenhouse crops would fall under the study
of . a. | floriculture | c. | nursery | b. | olericulture | d. | pomology | | | | |
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| 45. | Instead of germinating their own seed to establish a crop of marigolds as bedding
plants, a grower might: a. | purchase plugs. | c. | purchase primed seeds. | b. | prime their
seeds. | d. | root them | | | | |
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| 46. | Hydroponics is a system of growing plants in: a. | nutrient
solution. | c. | rock wool. | b. | hydrolite. | d. | hydrogrow. | | | | |
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| 47. | The
focal point of an arrangement is: a. | also called the center of
interest. | b. | usually located near the center of the
design. | c. | located near the base of the
arrangement. | d. | all of the above | | |
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| 48. | A
plant which has male organs and female organs in different flowers on the same plant is called
An example is
___________. a. | coniferous,
mums | c. | dioecious, gladiolus | b. | deciduous,
azaleas | d. | monoecious, begonias | | | | |
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| 49. | Which plant will grow a new plant from a leaf cutting? a. | marigold | c. | fern | b. | jade | d. | poinsettia | | | | |
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| 50. | Why
is green fiberglass not recommend on greenhouses, after all, if is cooler in the
summer? a. | Green
fiberglass cannot be made with and UV coating. | b. | Green fiberglass does not allow enough light in
during the winter. | c. | Green fiberglass is not really cooler, it just feels
cooler. | d. | Green fiberglass is damaging to the
eyes. | | |
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