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NYC NYCHA MAINTENANCE WORKER Exam 2026-
2027 BANK QUESTIONS WITH DETAILED VERIFIED
ANSWERS EXAM QUESTIONS WILL COME FROM
HERE (100% Latest Already Graded A+
QUESTION 1
Which of the following is the most critical first step when responding to
a reported gas leak in a NYCHA residential building?
A) Open all windows and doors to ventilate the area
B) Evacuate the immediate area and avoid using any electrical switches
or open flames
C) Call the gas company from a phone inside the apartment
D) Attempt to locate the source of the leak using a lighter
Answer: B
Explanation: Safety is paramount. Evacuating the area and eliminating
ignition sources prevents potential explosions. Using phones or switches
inside can create sparks. Ventilation should only occur after evacuation
and from a safe distance. Never use flames to locate a leak.
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QUESTION 2
A maintenance worker observes standing water in a basement
mechanical room. The most appropriate immediate action is to:
A) Ignore it if it is not interfering with equipment
B) Use a wet/dry vacuum to remove the water
C) Identify the source and shut off the water supply if possible, then
report the issue
D) Apply a chemical absorbent and leave it for the next shift
Answer: C
Explanation: Identifying and stopping the source prevents further
damage and mitigates hazards. Reporting ensures proper
documentation and repair. Vacuuming without stopping the source is
futile. Ignoring standing water can lead to structural damage, mold,
and electrical hazards.
QUESTION 3
When replacing a standard 120-volt electrical receptacle, which color
wire is typically connected to the brass-colored terminal screw?
A) White
B) Green or bare copper
C) Black or red
D) Blue
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Answer: C
Explanation: In standard US residential wiring, the black (hot) wire
connects to the brass terminal. White (neutral) connects to the silver
terminal. Green or bare copper (ground) connects to the green
grounding screw. Reversing hot and neutral creates a shock hazard.
QUESTION 4
A clogged bathroom drain does not respond to a plunger. The next
recommended step is to:
A) Pour boiling water directly down the drain
B) Use a chemical drain cleaner
C) Disassemble the trap and clean it out manually
D) Insert a flexible auger (snake) through the cleanout or trap
Answer: D
Explanation: An auger can reach clogs beyond the trap, such as in the
branch drain line. Disassembling the trap is effective for clogs at that
point but is more invasive and may cause leaks if reassembled
improperly. Chemical cleaners can damage pipes. Boiling water is
ineffective for solid obstructions.
QUESTION 5
According to OSHA standards, what is the maximum allowable standing
water depth for using standard portable electric tools without GFCI
protection?
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A) 0 inches (no standing water allowed)
B) 1 inch
C) 2 inches
D) 6 inches
Answer: A
Explanation: OSHA prohibits the use of standard portable electric tools
in wet locations or where standing water is present unless they are
specifically rated for such conditions and protected by a GFCI. Any
amount of standing water creates an electrocution hazard.
QUESTION 6
Which type of fire extinguisher is suitable for use on an electrical fire
involving energized equipment?
A) Class A
B) Class B
C) Class C
D) Class D
Answer: C
Explanation: Class C extinguishers are rated for electrical fires. The non-
conductive extinguishing agent prevents shock hazards. Class A is for
ordinary combustibles, Class B for flammable liquids, and Class D for
NYC NYCHA MAINTENANCE WORKER Exam 2026-
2027 BANK QUESTIONS WITH DETAILED VERIFIED
ANSWERS EXAM QUESTIONS WILL COME FROM
HERE (100% Latest Already Graded A+
QUESTION 1
Which of the following is the most critical first step when responding to
a reported gas leak in a NYCHA residential building?
A) Open all windows and doors to ventilate the area
B) Evacuate the immediate area and avoid using any electrical switches
or open flames
C) Call the gas company from a phone inside the apartment
D) Attempt to locate the source of the leak using a lighter
Answer: B
Explanation: Safety is paramount. Evacuating the area and eliminating
ignition sources prevents potential explosions. Using phones or switches
inside can create sparks. Ventilation should only occur after evacuation
and from a safe distance. Never use flames to locate a leak.
,2|Page
QUESTION 2
A maintenance worker observes standing water in a basement
mechanical room. The most appropriate immediate action is to:
A) Ignore it if it is not interfering with equipment
B) Use a wet/dry vacuum to remove the water
C) Identify the source and shut off the water supply if possible, then
report the issue
D) Apply a chemical absorbent and leave it for the next shift
Answer: C
Explanation: Identifying and stopping the source prevents further
damage and mitigates hazards. Reporting ensures proper
documentation and repair. Vacuuming without stopping the source is
futile. Ignoring standing water can lead to structural damage, mold,
and electrical hazards.
QUESTION 3
When replacing a standard 120-volt electrical receptacle, which color
wire is typically connected to the brass-colored terminal screw?
A) White
B) Green or bare copper
C) Black or red
D) Blue
,3|Page
Answer: C
Explanation: In standard US residential wiring, the black (hot) wire
connects to the brass terminal. White (neutral) connects to the silver
terminal. Green or bare copper (ground) connects to the green
grounding screw. Reversing hot and neutral creates a shock hazard.
QUESTION 4
A clogged bathroom drain does not respond to a plunger. The next
recommended step is to:
A) Pour boiling water directly down the drain
B) Use a chemical drain cleaner
C) Disassemble the trap and clean it out manually
D) Insert a flexible auger (snake) through the cleanout or trap
Answer: D
Explanation: An auger can reach clogs beyond the trap, such as in the
branch drain line. Disassembling the trap is effective for clogs at that
point but is more invasive and may cause leaks if reassembled
improperly. Chemical cleaners can damage pipes. Boiling water is
ineffective for solid obstructions.
QUESTION 5
According to OSHA standards, what is the maximum allowable standing
water depth for using standard portable electric tools without GFCI
protection?
, 4|Page
A) 0 inches (no standing water allowed)
B) 1 inch
C) 2 inches
D) 6 inches
Answer: A
Explanation: OSHA prohibits the use of standard portable electric tools
in wet locations or where standing water is present unless they are
specifically rated for such conditions and protected by a GFCI. Any
amount of standing water creates an electrocution hazard.
QUESTION 6
Which type of fire extinguisher is suitable for use on an electrical fire
involving energized equipment?
A) Class A
B) Class B
C) Class C
D) Class D
Answer: C
Explanation: Class C extinguishers are rated for electrical fires. The non-
conductive extinguishing agent prevents shock hazards. Class A is for
ordinary combustibles, Class B for flammable liquids, and Class D for
