Lab Practical 2021-2022

Question 1

The lens that is within the eyepiece of the light microscope is called the…

Answer 1

Ocular

Question 2

The wheel under the stage that adjusts the amount of light is called the…

Answer 2

Diaphragm

Question 3

When using the high power objective, you should not adjust the…

Answer 3

Coarse Focus

Question 4

The different power objectives are mounted on the…

Answer 4

Revolving Nosepiece

Question 5

A microscope has a 4x ocular lens and a 10x objective, what is this microscope’s total magnification?

Answer 5

40x

Question 6

What does the scale measure?

Answer 6

Mass (g)

Question 7

What does the graduated cylinder measure?

Answer 7

Liquid (mL)

Question 8

True or False:

It is fine to hold the graduated cylinder in the air when measuring.

Answer 8

False

Question 9

Safety goggles should be worn any time you are working with…

Answer 9

Open flame, chemical substances or using a mechanical device.

Question 10

Safety aprons should be worn any time you are working with…

Answer 10

Chemicals

Question 11

In case of eye injury…

Answer 11

Immediately wash the eyes with running water, remove concert lenses, and do not allow eye to be rubbed.

Question 12

Electrical hazards

Answer 12

Be careful when using electrical equipment never use electrical equipment around water or when your hands are wet do not let electrical cords dangle from the workstation. Unplug electrical equipment when not using

Question 13

Rules of chemical safety

Answer 13

Do not touch chemicals, No inhaling, keep hands away from face, wash immediately it comes in contact with face.