CODESP Custodial and Maintenance Operations

Question 1

According to standard chemical safety practice, what should a custodian do before using an unfamiliar cleaning product?

Accepted Answer

Read the product label and its Safety Data Sheet (SDS)

Answer

Dilute it with bleach to make it safer

Answer

Test it on their skin to check for reactions

Answer

Smell it to identify the active ingredient

Question 2

Why should ammonia-based cleaners never be mixed with chlorine bleach?

Accepted Answer

The mixture releases toxic chloramine gas

Answer

The mixture loses all cleaning power

Answer

The mixture stains floor tile permanently

Answer

The mixture becomes too slippery to mop

Question 3

What is the correct way to lift a heavy box of supplies from the floor?

Accepted Answer

Bend at the knees, keep the back straight, and hold the load close to the body

Answer

Bend at the waist and lift quickly to reduce strain time

Answer

Keep the legs straight and pull the load upward with the arms

Answer

Twist the torso while lifting to build momentum

Question 4

A custodian must mop a hallway while students are still passing through the building. What is the most important first step?

Accepted Answer

Place visible wet-floor warning signs around the work area

Answer

Mop as fast as possible before anyone walks by

Answer

Use less water so the floor dries invisibly

Answer

Lock all doors leading to the hallway

Question 5

A cleaning concentrate calls for a 1:64 dilution. How much concentrate is needed to make 2 gallons (256 ounces) of solution?

Accepted Answer

4 ounces

Answer

8 ounces

Answer

2 ounces

Answer

16 ounces

Question 6

Which practice best prevents the spread of germs when cleaning classroom desks and door handles?

Accepted Answer

Cleaning surfaces first, then applying disinfectant and letting it remain wet for the labeled dwell time

Answer

Spraying disinfectant and wiping it off immediately

Answer

Using the same cloth for restrooms and classrooms to save supplies

Answer

Applying disinfectant only once a month