Unit A: Section 4.0

Question 1

What does a surfactant do?

Answer 1

Cleans clothes

Question 2

What does a filler do?

Answer 2

Stops detergent from clumping

Question 3

What does the suspension agent do?

Answer 3

Stops dirt from re-attaching to material

Question 4

What does bleach do?

Answer 4

Removes stains

Question 5

What does the fragrance do?

Answer 5

Adds scent

Question 6

What does the builder do?

Answer 6

Softens water to help surfactant clean

Question 7

What does the corrosion inhibitor do?

Answer 7

Prevents washer from rusting

Question 8

What does the enzyme do?

Answer 8

Removes protein stains

Question 9

What does the optical whitener do?

Answer 9

Adds brightness

Question 10

What does the coloring agent do?

Answer 10

Gives detergent color

Question 11

What causes the bends?

Answer 11

When a diver ascends too quickly and the nitrogen cannot leave their body safely

Question 12

What is the treatment for the bends?

Answer 12

The air put in a pressure chamber and decrease the pressure slowly

Question 13

What are the two types of pumps?

Answer 13

Diaphragm and Archimedes screw

Question 14

What is a pump?

Answer 14

A device that moves fluid through or into something

Question 15

How does a bicycle pump work?

Answer 15

A piston is pushed down and makes the cylinder high pressure

Question 16

What is a pipeline pig?

Answer 16

It cleans pipes while it is pushed through

Question 17

What is a valve?

Answer 17

They regulate or control the amount of flow

Question 18

What is a bathyscaph?

Answer 18

It is an underwater vessel that is made to go to the deepest part of the world

Question 19

How does a submarine work?

Answer 19

If it wants to descend it fills it’s ballast with water, if it wants to ascend it fills it’s ballast with air

Question 20

How does a detergent work?

Answer 20

It surrounds the dirt and prevents it from re-attaching to the fabric