NYC Custodian Engineer Exam Review 2026 | Most Tested
Building Operations & Maintenance Concepts | Graded A+
1. Why is it important to avoid using harsh chemicals on restroom fixtures?
Harsh chemicals are required for all cleaning tasks.
Harsh chemicals can damage the fixtures and pose safety risks.
Harsh chemicals are safer than natural cleaners.
Harsh chemicals are more effective than mild cleaners.
2. What is the primary purpose of using floor cleaner powder?
To clean and maintain the cleanliness of floors.
To enhance the color of the flooring material.
To provide a protective coating on floors.
To remove odors from the environment.
3. What is the first action you should take upon seeing flames in a building?
Look for the nearest fire extinguisher.
Attempt to extinguish the flames yourself.
Call 911 after assessing the situation.
Evacuate the building immediately.
4. What is the first action you should take when your work shift ends and the
building is locked?
Ensure all cleaning equipment is stored properly.
Leave the building immediately.
, Turn off all lights and appliances.
Report to the supervisor.
5. Describe the rationale behind the first action to take when encountering
flames in a building.
The first action should be to attempt to extinguish the flames yourself.
The first action should be to call 911 after assessing the situation.
The first action should be to evacuate the building immediately to
ensure personal safety.
The first action should be to look for the nearest fire extinguisher.
6. What is the primary task involved in stripping the floor?
Cleaning the floor with a mop
Removing the old finish from the floor surface
Applying a new coat of paint
Buffing the floor to a shine
7. If a school has a limited budget and cannot clean drinking water fountains
daily, what alternative cleaning schedule could be proposed while still
ensuring safety?
Clean them every other day and conduct a thorough weekly
cleaning.
Clean them only if they appear dirty.
Clean them only during the summer.
Clean them once a month.
, 8. Which areas are typically prioritized during cleaning procedures?
Storage rooms and offices
Restrooms and break rooms
High-traffic areas and frequently touched surfaces
Windows and light fixtures
9. *You have been asked to do some work that will create dust. What should you
do?*
Work for short periods at a time
You should not do the work. Dust is highly dangerous
Use equipment that will eliminate or reduce the amount of dust
whilst wearing correct personal protective equipment (PPE)
Start work - no controls are needed as it's only dust
10. Why is it important to seek clarification when given conflicting orders from
supervisors?
It helps to ensure that tasks are completed correctly and according
to the organization's priorities.
It prevents you from having to make a decision on your own.
It shows that you are indecisive and need help.
It allows you to choose which supervisor to follow based on personal
preference.
11. What is the first action to take if harmful chemicals spill on your skin?
Wash the affected area with plenty of water.
Notify a supervisor immediately.
Building Operations & Maintenance Concepts | Graded A+
1. Why is it important to avoid using harsh chemicals on restroom fixtures?
Harsh chemicals are required for all cleaning tasks.
Harsh chemicals can damage the fixtures and pose safety risks.
Harsh chemicals are safer than natural cleaners.
Harsh chemicals are more effective than mild cleaners.
2. What is the primary purpose of using floor cleaner powder?
To clean and maintain the cleanliness of floors.
To enhance the color of the flooring material.
To provide a protective coating on floors.
To remove odors from the environment.
3. What is the first action you should take upon seeing flames in a building?
Look for the nearest fire extinguisher.
Attempt to extinguish the flames yourself.
Call 911 after assessing the situation.
Evacuate the building immediately.
4. What is the first action you should take when your work shift ends and the
building is locked?
Ensure all cleaning equipment is stored properly.
Leave the building immediately.
, Turn off all lights and appliances.
Report to the supervisor.
5. Describe the rationale behind the first action to take when encountering
flames in a building.
The first action should be to attempt to extinguish the flames yourself.
The first action should be to call 911 after assessing the situation.
The first action should be to evacuate the building immediately to
ensure personal safety.
The first action should be to look for the nearest fire extinguisher.
6. What is the primary task involved in stripping the floor?
Cleaning the floor with a mop
Removing the old finish from the floor surface
Applying a new coat of paint
Buffing the floor to a shine
7. If a school has a limited budget and cannot clean drinking water fountains
daily, what alternative cleaning schedule could be proposed while still
ensuring safety?
Clean them every other day and conduct a thorough weekly
cleaning.
Clean them only if they appear dirty.
Clean them only during the summer.
Clean them once a month.
, 8. Which areas are typically prioritized during cleaning procedures?
Storage rooms and offices
Restrooms and break rooms
High-traffic areas and frequently touched surfaces
Windows and light fixtures
9. *You have been asked to do some work that will create dust. What should you
do?*
Work for short periods at a time
You should not do the work. Dust is highly dangerous
Use equipment that will eliminate or reduce the amount of dust
whilst wearing correct personal protective equipment (PPE)
Start work - no controls are needed as it's only dust
10. Why is it important to seek clarification when given conflicting orders from
supervisors?
It helps to ensure that tasks are completed correctly and according
to the organization's priorities.
It prevents you from having to make a decision on your own.
It shows that you are indecisive and need help.
It allows you to choose which supervisor to follow based on personal
preference.
11. What is the first action to take if harmful chemicals spill on your skin?
Wash the affected area with plenty of water.
Notify a supervisor immediately.
