NYC Custodian Engineer EXAM QUESTIONS AND CORRECT ANSWERS WITH
RATIONALES
Exam coverage
• Boiler operation requires monitoring pressure temperature water level and controls
• Steam and hot-water systems require appropriate circulation and pressure management
• Electrical systems require protective devices and safe isolation procedures
• Pumps and motors need suitable alignment lubrication cooling and loading
• Building safety systems require routine inspection and prompt response
• Hvac performance depends on controls airflow or water flow and temperature
• Preventive maintenance addresses wear cleaning lubrication and adjustment
• Operating logs record readings alarms maintenance and corrective actions
• Emergency procedures prioritize life safety stabilization and notification
• Energy management seeks efficiency without compromising safety or required conditions
,1. Which response best demonstrates understanding of how boiler operation requires
monitoring pressure temperature water level and controls Which answer best applies
the underlying custodian engineering principle in this situation?
A. Boiler operation requires monitoring pressure temperature water level and controls.
B. Steam and hot-water systems require appropriate circulation and pressure management.
C. Pumps and motors need suitable alignment lubrication cooling and loading.
D. Electrical systems require protective devices and safe isolation procedures.
Correct answer: A
Rationale: The correct choice is supported because boiler operation requires monitoring
pressure temperature water level and controls. The other options describe related concepts
but do not directly address the principle tested in this question.
2. An inspector is reviewing the following issue; which explanation is most accurate
because steam and hot-water systems require appropriate circulation and pressure
management Which answer best applies the underlying custodian engineering principle
in this situation?
A. Electrical systems require protective devices and safe isolation procedures.
B. Building safety systems require routine inspection and prompt response.
C. Pumps and motors need suitable alignment lubrication cooling and loading.
D. Steam and hot-water systems require appropriate circulation and pressure management.
Correct answer: D
,Rationale: The correct choice is supported because steam and hot-water systems require
appropriate circulation and pressure management. The other options describe related
concepts but do not directly address the principle tested in this question.
3. Which option best describes the relationship between the requirement and the result
when electrical systems require protective devices and safe isolation procedures
Which answer best applies the underlying custodian engineering principle in this
situation?
A. Electrical systems require protective devices and safe isolation procedures.
B. Building safety systems require routine inspection and prompt response.
C. Hvac performance depends on controls airflow or water flow and temperature.
D. Pumps and motors need suitable alignment lubrication cooling and loading.
Correct answer: A
Rationale: The correct choice is supported because electrical systems require protective
devices and safe isolation procedures. The other options describe related concepts but do not
directly address the principle tested in this question.
4. A technician must decide how to proceed; which statement provides the soundest
basis because pumps and motors need suitable alignment lubrication cooling and
loading Which answer best applies the underlying custodian engineering principle in
this situation?
A. Pumps and motors need suitable alignment lubrication cooling and loading.
, B. Preventive maintenance addresses wear cleaning lubrication and adjustment.
C. Building safety systems require routine inspection and prompt response.
D. Hvac performance depends on controls airflow or water flow and temperature.
Correct answer: A
Rationale: The correct choice is supported because pumps and motors need suitable
alignment lubrication cooling and loading. The other options describe related concepts but do
not directly address the principle tested in this question.
5. Which statement most accurately explains why building safety systems require
routine inspection and prompt response Which answer best applies the underlying
custodian engineering principle in this situation?
A. Operating logs record readings alarms maintenance and corrective actions.
B. Preventive maintenance addresses wear cleaning lubrication and adjustment.
C. Hvac performance depends on controls airflow or water flow and temperature.
D. Building safety systems require routine inspection and prompt response.
Correct answer: D
Rationale: The correct choice is supported because building safety systems require routine
inspection and prompt response. The other options describe related concepts but do not
directly address the principle tested in this question.
6. During a routine review, which option best describes how HVAC performance
depends on controls airflow or water flow and temperature Which answer best applies
RATIONALES
Exam coverage
• Boiler operation requires monitoring pressure temperature water level and controls
• Steam and hot-water systems require appropriate circulation and pressure management
• Electrical systems require protective devices and safe isolation procedures
• Pumps and motors need suitable alignment lubrication cooling and loading
• Building safety systems require routine inspection and prompt response
• Hvac performance depends on controls airflow or water flow and temperature
• Preventive maintenance addresses wear cleaning lubrication and adjustment
• Operating logs record readings alarms maintenance and corrective actions
• Emergency procedures prioritize life safety stabilization and notification
• Energy management seeks efficiency without compromising safety or required conditions
,1. Which response best demonstrates understanding of how boiler operation requires
monitoring pressure temperature water level and controls Which answer best applies
the underlying custodian engineering principle in this situation?
A. Boiler operation requires monitoring pressure temperature water level and controls.
B. Steam and hot-water systems require appropriate circulation and pressure management.
C. Pumps and motors need suitable alignment lubrication cooling and loading.
D. Electrical systems require protective devices and safe isolation procedures.
Correct answer: A
Rationale: The correct choice is supported because boiler operation requires monitoring
pressure temperature water level and controls. The other options describe related concepts
but do not directly address the principle tested in this question.
2. An inspector is reviewing the following issue; which explanation is most accurate
because steam and hot-water systems require appropriate circulation and pressure
management Which answer best applies the underlying custodian engineering principle
in this situation?
A. Electrical systems require protective devices and safe isolation procedures.
B. Building safety systems require routine inspection and prompt response.
C. Pumps and motors need suitable alignment lubrication cooling and loading.
D. Steam and hot-water systems require appropriate circulation and pressure management.
Correct answer: D
,Rationale: The correct choice is supported because steam and hot-water systems require
appropriate circulation and pressure management. The other options describe related
concepts but do not directly address the principle tested in this question.
3. Which option best describes the relationship between the requirement and the result
when electrical systems require protective devices and safe isolation procedures
Which answer best applies the underlying custodian engineering principle in this
situation?
A. Electrical systems require protective devices and safe isolation procedures.
B. Building safety systems require routine inspection and prompt response.
C. Hvac performance depends on controls airflow or water flow and temperature.
D. Pumps and motors need suitable alignment lubrication cooling and loading.
Correct answer: A
Rationale: The correct choice is supported because electrical systems require protective
devices and safe isolation procedures. The other options describe related concepts but do not
directly address the principle tested in this question.
4. A technician must decide how to proceed; which statement provides the soundest
basis because pumps and motors need suitable alignment lubrication cooling and
loading Which answer best applies the underlying custodian engineering principle in
this situation?
A. Pumps and motors need suitable alignment lubrication cooling and loading.
, B. Preventive maintenance addresses wear cleaning lubrication and adjustment.
C. Building safety systems require routine inspection and prompt response.
D. Hvac performance depends on controls airflow or water flow and temperature.
Correct answer: A
Rationale: The correct choice is supported because pumps and motors need suitable
alignment lubrication cooling and loading. The other options describe related concepts but do
not directly address the principle tested in this question.
5. Which statement most accurately explains why building safety systems require
routine inspection and prompt response Which answer best applies the underlying
custodian engineering principle in this situation?
A. Operating logs record readings alarms maintenance and corrective actions.
B. Preventive maintenance addresses wear cleaning lubrication and adjustment.
C. Hvac performance depends on controls airflow or water flow and temperature.
D. Building safety systems require routine inspection and prompt response.
Correct answer: D
Rationale: The correct choice is supported because building safety systems require routine
inspection and prompt response. The other options describe related concepts but do not
directly address the principle tested in this question.
6. During a routine review, which option best describes how HVAC performance
depends on controls airflow or water flow and temperature Which answer best applies
