NYC Health Hospitals Maintenance
Mechanic Exam Practice Questions And
Correct Answers (Verified Answers) Plus
Rationale 2026 Q&A| Instant Download
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1. A Maintenance Mechanic working in a large healthcare facility is
responsible for maintaining mechanical equipment that supports
patient care operations. When inspecting a motor-driven pump
system, which procedure should be performed first before beginning
any hands-on maintenance work?
A. Remove all protective guards immediately to access moving parts
B. Increase operating pressure to determine the maximum capability of the
pump
C. Follow lockout/tagout procedures and verify that all energy sources are
isolated
D. Lubricate all moving parts before shutting down the equipment
,Answer: C
Lockout/tagout procedures are required before servicing mechanical
equipment because they prevent unexpected energization, startup, or
release of stored energy that could injure maintenance personnel.
2. A hospital maintenance mechanic is troubleshooting a centrifugal
pump that has reduced water flow but the motor is operating
normally. Which condition is the most likely cause?
A. Excessive voltage supplied to the motor
B. Air entering the suction line or a clogged suction strainer
C. Increased insulation resistance in the motor windings
D. A larger-than-required motor horsepower rating
Answer: B
Centrifugal pumps require proper suction conditions. Air leaks or
restrictions on the suction side can reduce pump performance and cause
low flow or loss of prime.
3. When using a multimeter to measure voltage on an energized
electrical circuit, the mechanic should first:
A. Select the highest resistance setting
B. Connect the test leads across the circuit using the correct voltage range
C. Place the meter in continuity mode
D. Disconnect all grounding conductors
,Answer: B
Voltage measurements require the meter to be set to the appropriate
voltage range and connected correctly across the points being tested to
obtain accurate readings safely.
4. A maintenance mechanic notices that a three-phase motor is rotating
in the wrong direction after installation. What is the proper corrective
action?
A. Replace the motor bearings
B. Increase the motor voltage
C. Swap any two of the three phase conductors
D. Remove the motor overload protection
Answer: C
Reversing any two phases of a three-phase power supply changes the
direction of rotation of the motor without requiring replacement of
components.
5. In a healthcare facility, preventive maintenance programs are primarily
designed to:
A. Eliminate all equipment replacement costs
B. Reduce unexpected failures and extend equipment service life
C. Increase equipment operation beyond manufacturer limits
D. Avoid documenting maintenance activities
, Answer: B
Preventive maintenance identifies wear, deterioration, and potential
problems before failure occurs, improving reliability and safety.
6. A mechanic repairing a steam valve notices leakage around the valve
stem packing. The most appropriate repair is to:
A. Increase steam pressure
B. Replace or adjust the packing material
C. Remove the valve completely without shutting down the system
D. Block the steam line permanently
Answer: B
Valve stem leakage is commonly caused by worn or improperly adjusted
packing, which can usually be corrected by tightening or replacing the
packing material.
7. Which instrument is commonly used to measure electrical current
flowing through a conductor?
A. Tachometer
B. Clamp ammeter
C. Thermometer
D. Pressure gauge
Answer: B
Mechanic Exam Practice Questions And
Correct Answers (Verified Answers) Plus
Rationale 2026 Q&A| Instant Download
1. A Maintenance Mechanic working in a large healthcare facility is
responsible for maintaining mechanical equipment that supports
patient care operations. When inspecting a motor-driven pump
system, which procedure should be performed first before beginning
any hands-on maintenance work?
A. Remove all protective guards immediately to access moving parts
B. Increase operating pressure to determine the maximum capability of the
pump
C. Follow lockout/tagout procedures and verify that all energy sources are
isolated
D. Lubricate all moving parts before shutting down the equipment
,Answer: C
Lockout/tagout procedures are required before servicing mechanical
equipment because they prevent unexpected energization, startup, or
release of stored energy that could injure maintenance personnel.
2. A hospital maintenance mechanic is troubleshooting a centrifugal
pump that has reduced water flow but the motor is operating
normally. Which condition is the most likely cause?
A. Excessive voltage supplied to the motor
B. Air entering the suction line or a clogged suction strainer
C. Increased insulation resistance in the motor windings
D. A larger-than-required motor horsepower rating
Answer: B
Centrifugal pumps require proper suction conditions. Air leaks or
restrictions on the suction side can reduce pump performance and cause
low flow or loss of prime.
3. When using a multimeter to measure voltage on an energized
electrical circuit, the mechanic should first:
A. Select the highest resistance setting
B. Connect the test leads across the circuit using the correct voltage range
C. Place the meter in continuity mode
D. Disconnect all grounding conductors
,Answer: B
Voltage measurements require the meter to be set to the appropriate
voltage range and connected correctly across the points being tested to
obtain accurate readings safely.
4. A maintenance mechanic notices that a three-phase motor is rotating
in the wrong direction after installation. What is the proper corrective
action?
A. Replace the motor bearings
B. Increase the motor voltage
C. Swap any two of the three phase conductors
D. Remove the motor overload protection
Answer: C
Reversing any two phases of a three-phase power supply changes the
direction of rotation of the motor without requiring replacement of
components.
5. In a healthcare facility, preventive maintenance programs are primarily
designed to:
A. Eliminate all equipment replacement costs
B. Reduce unexpected failures and extend equipment service life
C. Increase equipment operation beyond manufacturer limits
D. Avoid documenting maintenance activities
, Answer: B
Preventive maintenance identifies wear, deterioration, and potential
problems before failure occurs, improving reliability and safety.
6. A mechanic repairing a steam valve notices leakage around the valve
stem packing. The most appropriate repair is to:
A. Increase steam pressure
B. Replace or adjust the packing material
C. Remove the valve completely without shutting down the system
D. Block the steam line permanently
Answer: B
Valve stem leakage is commonly caused by worn or improperly adjusted
packing, which can usually be corrected by tightening or replacing the
packing material.
7. Which instrument is commonly used to measure electrical current
flowing through a conductor?
A. Tachometer
B. Clamp ammeter
C. Thermometer
D. Pressure gauge
Answer: B
