Multiple Choice
Identify the
choice that best completes the statement or answers the question.
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1.
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Which of the following actions would have been a reasonable way to prevent the
accident?
a. | Chemical containers should be triple-rinsed and completely dry before being used for
waste accumulation. | b. | Safety glasses should always be worn while in
the laboratory, even while performing nonlaboratory work. | c. | Nitrlc acid waste
should have been flushed down the drain. | d. | A cap should never be placed on waste bottles,
so they do not become pressurized. |
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2.
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What does this scenario emphasize?
a. | the need to eliminate waste | b. | the need to wear safety
goggles | c. | the need to need to dispose of waste properly | d. | both Band
C |
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3.
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Graduated cylinders are marked in units of
a. | grams. | c. | millimeters. | b. | meters. | d. | milliliters. |
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4.
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Select the best piece of equipment for observing whether or not different solids
float in a given liquid.
a. | watch glass | c. | Erlenmeyer flask | b. | beaker | d. | Petri dish |
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5.
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How is a broken glass beaker discarded?
a. | Wrap it in paper towels and throw it in the trash. | b. | Wrap it in a plastic
bag and throw it in the trash. | c. | Gently dropping it into the labeled broken
glass container. | d. | Slam-dunking it into the labeled broken glass
container. |
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6.
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Anthony draws 2 ml of a water sample into a glass pi pet. If he wants to culture
the growth of microorganisms in the water, what basic piece(s) of equipment does he need?
a. | a Petri dish | c. | a watch glass and a microscope | b. | a watch glass and a
Petri dish | d. | a Petri dish and
a microscope |
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7.
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What is the reason for not wearing sandals in the lab?
a. | to protect your toes from electrical shock | b. | to trample your
sense of style | c. | to eliminate stinky feet | d. | to avoid injury to your feet from chemical
spills or broken glass |
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8.
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Which named part of the microscope is primarily responsible for magnification of
a sample?
a. | Objectives | c. | Eyepiece | b. | Coarse adjustment | d. | Fine Adjustment |
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9.
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Which named part of the microscope is the flat platform where the slide is placed?
a. | Objectives | c. | Eyepiece | b. | Stage | d. | Fine Adjustment |
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10.
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Which named part of the microscope is the fine tunes the focus and increases the detail of the
specimen?
a. | Objectives | c. | Eyepiece | b. | Stage | d. | Fine Adjustment |
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