Discuss the care of bulbs after the plants have flowered. Do some bulbs require
different care than others?
What will be an ideal response?
Bulbs flowering in the spring should be dug after the foliage turns yellow and dies back.
Some, like tulip and hyacinth bulbs, should be replanted every year to ensure highquality
blooming, while daffodil, crocus, lily, and colchicum bulbs should be dug up every
3 to 5 years, thinned, and replanted. Summer flowering bulbs, like dahlia, tuberousrooted
begonias, calla, and gladiolus, should be dug after the first fall frost has killed the
foliage. It is important that the foliage of the bulbs has no green color in it.
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In an electronic air cleaner, the smallest particles in the air are trapped in the _____.
a. pre-filter b. ionizer section c. collector section d. charcoal filter
When work involving exposure to electrical hazards is considered, the energized electrical work permit process is used to _____.
a. conduct shock and arc flash risk assessments b. supplement the pre-job briefing c. obtain signatures for approval d. plan and authorize the work
Common symbols used on blueprints are usually based on the symbols developed by the __________.
a. National Fire Protection Association b. National Electrical Code® c. National Association of Electrical Manufacturers d. American National Standards Institute
To protect against corrosion and oxidation, galvanized pipe is electroplated with a coating of _____
a. lead b. zinc c. copper d. magnesium