Microscope Quiz
Questions: 16 · 10 minutes
1. While focusing at low power, you need to move the stage a relatively large distance. Which control should you use?
The iris-diaphragm lever
The coarse-adjustment knob
The mechanical-stage control
The fine-adjustment knob
2. A specimen appears too bright, and you want to reduce the amount of light passing through it. Which part should you adjust?
The objective lens
The coarse-adjustment knob
The mechanical stage
The iris diaphragm
3. You need to move a secured slide smoothly left, right, forward, and backward. Which controls should you use?
The mechanical-stage controls
The coarse- and fine-focus knobs
The diaphragm and condenser controls
The nosepiece and objective lenses
4. The image is almost sharp, but a small, precise focus change is needed. Which part should you adjust?
The revolving nosepiece
The condenser
The fine-adjustment knob
The stage clip
5. When a microscope uses a built-in lamp, which labeled part is the light source?
The condenser
The illuminator
The diaphragm
The objective
6. After centering a specimen under low power, how should you switch to the next objective?
Rotate the revolving nosepiece until the next objective clicks into place
Remove the current objective and attach another one
Turn the eyepiece until the objective changes
Move the slide to a different area of the stage
7. Which structure keeps the eyepiece and objective system aligned along the microscope’s optical path?
The head or body tube
The base
The stage
The diaphragm
8. Which part do you look through to view the magnified specimen?
The condenser
The objective lens
The eyepiece, or ocular lens
The illuminator
9. Which part supplies the primary magnification closest to the specimen?
The condenser lens
The ocular lens
The illuminator lens
The objective lens
10. When beginning to locate a specimen, which objective should normally be placed over the slide first?
The highest-power objective
The lowest-power objective
The oil-immersion objective
Whichever objective is physically longest
11. Which component holds the objective lenses and rotates to place a different one over the specimen?
The mechanical stage
The body tube
The iris diaphragm
The revolving nosepiece
12. When carrying a standard microscope with two hands, which part should one hand grasp while the other supports the base?
The eyepiece
The arm
The stage
The revolving nosepiece
13. After switching from low to high power, the image needs a slight focus correction. Which control is the appropriate choice?
The mechanical-stage control
The coarse-adjustment knob
The fine-adjustment knob
The iris-diaphragm lever
14. What is the flat platform on which the slide rests?
The base
The arm
The stage
The head
15. Which part concentrates light onto the specimen from below the stage?
The eyepiece
The nosepiece
The stage clip
The condenser
16. Which part forms the microscope’s bottom support and often houses the illuminator?
The base
The stage
The nosepiece
The arm