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

OSHA hazard communication standards require that workers consult the label and Safety Data Sheet, which list proper use, dilution, personal protective equipment, and first-aid measures before handling any chemical.

Question 2

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

Accepted Answer

The mixture releases toxic chloramine gas

Answer

Combining ammonia and bleach produces chloramine vapors, which can cause serious respiratory harm or death in enclosed spaces, making this one of the most important chemical-safety rules in custodial work.

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

Safe lifting technique uses the leg muscles by bending at the knees, keeping the back straight, and holding the load close to the body's center of gravity, which minimizes back injury risk.

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

Posting wet-floor signage before mopping warns pedestrians of the slip hazard and is the standard required safety practice for wet work in occupied buildings.

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

A 1:64 ratio means 1 part concentrate per 64 parts total solution, so 256 ounces ÷ 64 = 4 ounces of concentrate.

CODESP - Cooperative Organization for the Development of Employee Selection Procedures Practice Test

CODESP - Cooperative Organization for the Development of Employee Selection Procedures Practice Test

CODESP Custodial and Maintenance Operations