Lesson 18 part 2

Question 1

are made from pure soap or organic chemicals

Answer 1

Detergents

Question 2

2 types of detergents

Answer 2

Soapy and synthetic

Question 3

are substances used for absorbing or eliminating bad and unpleasant odors in an area.

Answer 3

Deodorants

Question 4

Acids that are used as cleaning agents

Answer 4

Acid cleaners

Question 5

help and contribute to the cleaning action of laundry detergents and offer special functions and benefits

Answer 5

Laundry aids

Question 6

are cleaning agents that are applied to a surface to form a hard, protective layer

Answer 6

Polishes

Question 7

Alkaline-based cleaning agents are used in laundry and are particularly good for removing grease.

Answer 7

Alkaline cleaners

Question 8

(washing soda) is used to soften water and remove light grease marks

Answer 8

Sodium carbonate

Question 9

(caustic soda) is used for removing grease from grills and blocked drains

Answer 9

Sodium hydroxide

Question 10

(bleach) is used for whitening and removing stains from hard and soft surfaces.

Answer 10

Sodium hypochlorite

Question 11

These cleaning agents are used extensively for dry cleaning and for stain removal.

Answer 11

Solvent cleaners

Question 12

These are applied to a floor’s surface to form a semi-permanent protective coating to prevent dirt, liquid, grease stains, and bacteria from penetrating it.

Answer 12

Floor seals

Question 13

• It is a clear solvent-based sealer used on wood, cork, and magnesite floors. It consists of oils, resins, and solvents.

Answer 13

Oleo-resinous seal

Question 14

• It is made up of synthetic materials. It is used on wood, cork, and magnesite floor.

Answer 14

One-pot plastic seal

Question 15

This sealer contains color pigment that provides color and also strengthens the sealers. It is used on wood, concrete, and stone floors.

Answer 15

Pigmented floor seal

Question 16

are used to kill harmful germs.

Answer 16

Disinfectants

Question 17

• It comes in diluted or concentrated solution and is used to disinfect surfaces in different areas of the facilities, like in the hospitals

Answer 17

Phenol

Question 18

• Its elements, such as chlorine and iodine, may be used as disinfectants

Answer 18

Halogen

Question 19

These are substances or chemicals that depend on their rubbing or scratching action to clean dirt from hard surfaces.

Answer 19

Abrasive cleaners

Question 20

• Jeweler’s rouge is a fine powder of ferric oxide used for shining silver

Answer 20

Fine abrasives

Question 21

Commonly used hard abrasives include sand paper, fine ash, pumiced stone, and steel wool.

Answer 21

Hard abrasives