California-Style Custodial Certification Practice Examination Questions Covering
Cleaning Methods, Chemical Safety, Equipment Operation, Infection Control, SDS
Literacy, Workplace Conduct, and Emergency Procedures for State Facility
Custodian Roles
What safety step must always be taken before mixing any cleaning chemical concentrate?
Answer: Read the label and SDS first.*
Labels and safety data sheets give hazards, PPE, dilution, and first-aid info.
Which document provides hazard, first-aid, and handling details for each cleaning
chemical you use?
Answer: The Safety Data Sheet, or SDS.*
SDSs standardize chemical safety information for workers and emergency responders.
When mopping a busy hallway, what is the safest way to prevent slips and falls?
Answer: Place wet-floor signs and work in sections.*
Signs warn people; working in sections keeps some dry paths open.
What is the correct first step before using a new floor buffer in a building?
Answer: Inspect the machine and read operating instructions.*
Inspection prevents accidents; instructions ensure correct, safe operation.
Which type of cleaner is best for removing grease from kitchen equipment surfaces?
Answer: A degreaser or alkaline cleaner.*
Alkaline degreasers break down fats, oils, and greases effectively.
, What must be done with partially used chemical containers before storing them long-term?
Answer: Tightly cap, label, and store properly ventilated.*
This prevents leaks, misidentification, and buildup of hazardous vapors.
Before vacuuming a classroom, what quick check should you do to protect the equipment?
Answer: Scan floor for large debris and sharp objects.*
Large or sharp items can clog or damage vacuum components.
When cleaning restrooms, which surface should typically be cleaned last to avoid
recontamination?
Answer: The floor should be cleaned and mopped last.*
Cleaning high to low prevents dirt from falling onto cleaned floors.
What PPE is essential when diluting concentrated disinfectant in a poorly ventilated utility
room?
Answer: Gloves, goggles, and ideally a mask or respirator.*
Concentrates can irritate skin, eyes, and respiratory tract without protection.
Which action best prevents cross-contamination between restrooms and food service
areas?
Answer: Use separate, color-coded tools and cloths for each area.*
Dedicated tools stop pathogens from spreading between high-risk zones.
What should you do immediately after noticing a strong chemical odor while cleaning a
confined space?
Answer: Stop work, ventilate area, and report the issue.*
Strong odors may indicate dangerous fumes requiring ventilation and supervision.
, Which cleaning method is safest for disinfecting high-touch surfaces like door handles and
light switches?
Answer: Wipe with approved disinfectant using clean cloths.*
Proper disinfectants kill germs; clean cloths prevent spreading contamination.
What is the main reason for diluting cleaning chemicals according to manufacturer
instructions?
Answer: To ensure effectiveness and avoid damage or hazards.*
Wrong dilution can reduce efficacy or cause harm to surfaces and people.
Before operating a ride-on floor scrubber, what safety check is most important to perform?
Answer: Check brakes, battery, and emergency stop function.*
Functional controls prevent collisions, electrical issues, and uncontrolled movement.
Which practice best protects indoor air quality when using strong cleaning agents indoors?
Answer: Ensure good ventilation by opening windows or using exhaust.*
Ventilation dilutes fumes and reduces inhalation risks for occupants.
What should you do if you accidentally splash a cleaning chemical into your eye?
Answer: Rinse eye with water and seek medical help immediately.*
Immediate flushing reduces damage; medical care checks for injury.
Which task should be completed before starting daily cleaning in a school classroom
environment?
Answer: Remove or secure loose items and check for hazards.*
This prevents tripping, breakage, and damage to personal belongings.
What is the safest way to dispose of broken glass found during routine custodial cleaning
duties?
Cleaning Methods, Chemical Safety, Equipment Operation, Infection Control, SDS
Literacy, Workplace Conduct, and Emergency Procedures for State Facility
Custodian Roles
What safety step must always be taken before mixing any cleaning chemical concentrate?
Answer: Read the label and SDS first.*
Labels and safety data sheets give hazards, PPE, dilution, and first-aid info.
Which document provides hazard, first-aid, and handling details for each cleaning
chemical you use?
Answer: The Safety Data Sheet, or SDS.*
SDSs standardize chemical safety information for workers and emergency responders.
When mopping a busy hallway, what is the safest way to prevent slips and falls?
Answer: Place wet-floor signs and work in sections.*
Signs warn people; working in sections keeps some dry paths open.
What is the correct first step before using a new floor buffer in a building?
Answer: Inspect the machine and read operating instructions.*
Inspection prevents accidents; instructions ensure correct, safe operation.
Which type of cleaner is best for removing grease from kitchen equipment surfaces?
Answer: A degreaser or alkaline cleaner.*
Alkaline degreasers break down fats, oils, and greases effectively.
, What must be done with partially used chemical containers before storing them long-term?
Answer: Tightly cap, label, and store properly ventilated.*
This prevents leaks, misidentification, and buildup of hazardous vapors.
Before vacuuming a classroom, what quick check should you do to protect the equipment?
Answer: Scan floor for large debris and sharp objects.*
Large or sharp items can clog or damage vacuum components.
When cleaning restrooms, which surface should typically be cleaned last to avoid
recontamination?
Answer: The floor should be cleaned and mopped last.*
Cleaning high to low prevents dirt from falling onto cleaned floors.
What PPE is essential when diluting concentrated disinfectant in a poorly ventilated utility
room?
Answer: Gloves, goggles, and ideally a mask or respirator.*
Concentrates can irritate skin, eyes, and respiratory tract without protection.
Which action best prevents cross-contamination between restrooms and food service
areas?
Answer: Use separate, color-coded tools and cloths for each area.*
Dedicated tools stop pathogens from spreading between high-risk zones.
What should you do immediately after noticing a strong chemical odor while cleaning a
confined space?
Answer: Stop work, ventilate area, and report the issue.*
Strong odors may indicate dangerous fumes requiring ventilation and supervision.
, Which cleaning method is safest for disinfecting high-touch surfaces like door handles and
light switches?
Answer: Wipe with approved disinfectant using clean cloths.*
Proper disinfectants kill germs; clean cloths prevent spreading contamination.
What is the main reason for diluting cleaning chemicals according to manufacturer
instructions?
Answer: To ensure effectiveness and avoid damage or hazards.*
Wrong dilution can reduce efficacy or cause harm to surfaces and people.
Before operating a ride-on floor scrubber, what safety check is most important to perform?
Answer: Check brakes, battery, and emergency stop function.*
Functional controls prevent collisions, electrical issues, and uncontrolled movement.
Which practice best protects indoor air quality when using strong cleaning agents indoors?
Answer: Ensure good ventilation by opening windows or using exhaust.*
Ventilation dilutes fumes and reduces inhalation risks for occupants.
What should you do if you accidentally splash a cleaning chemical into your eye?
Answer: Rinse eye with water and seek medical help immediately.*
Immediate flushing reduces damage; medical care checks for injury.
Which task should be completed before starting daily cleaning in a school classroom
environment?
Answer: Remove or secure loose items and check for hazards.*
This prevents tripping, breakage, and damage to personal belongings.
What is the safest way to dispose of broken glass found during routine custodial cleaning
duties?
