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Worksheets

LABORATORY KNOWLEDGE

Total questions: 15

Worksheet time: 3mins

Name
Class
Date
1.

Which of these is NOT a piece of safety equipment for a laboratory?

a)

Goggles

b)

Glove

c)

Eyewash

d)

Crucible

2.

What does PPE stands for?

a)

Personal Protective Equipment

b)

Personal Protection Equipment

c)

Personal Protective Executive

d)

Product Placement Enquiry

3.

What should you do after working with biological specimens, chemicals, and lab substances?

a)

Wipe both hands with a towel

b)

Wash both hands with water and soap

c)

Treat both hands with skin lotion

d)

All of are true

4.

When an acid comes in contact with your skin, you should immediately wash it with what?

a)

Water

b)

Oil

c)

Soap

d)

Alkaline

5.

All of the following terms can be used to describe hazardous waste, EXCEPT:

a)

Ignitable

b)

Toxicity

c)

Enzymatic

d)

Corrosivity

6.

How many teeth do adults human have?

a)

34

b)

21

c)

26

d)

32

7.

How many teeth do average children have?

a)

30

b)

20

c)

21

d)

28

8.

Eyewash stations must be within a 10 second walk of the potential hazard

a)

True

b)

False

9.

Where is the right place for First Aid Kit in the laboratory?

a)

Hidden inside laboratory bench

b)

Wrap with Autoclave Bag at the Floor

c)

Easy to access for everyone

d)

At higher place

10.

A dental carie (cavity) is an infectious disease.

a)

True

b)

False

11.

Which of the following substances can be poured safely down the drain?

a)

Phosphate Buffered Saline (PBS)

b)

Halogenated hydrocarbons

c)

Water-reactive materials

d)

All are true

12.

What is the magnification of the oil immersion lens?

a)

10X

b)

4X

c)

40X

d)

100X

13.

What is the name of this item?

a)

Biohazard Disposal Bag

b)

Waste Bag

c)

Autoclaveable Disposal Bag

d)

Biodegredable Bag

14.

What is the best instrument for measuring the volume?

a)

Evaporating dish

b)

Graduated cylinder

c)

Beaker

d)

Erlenmeyer flask

15.

What enzyme hydrolyzes the substrate deoxyribonucleic acid?

a)

Collagenase

b)

Lipase

c)

DNase

d)

Amylase