NYC NYCHA Maintenance Worker Exam: Practice Questions with Correct Answers

NYC NYCHA Maintenance Worker Exam:
Practice Questions with Correct Answers

SECTION 1: SAFETY PROCEDURES & HAZARD IDENTIFICATION (Questions 1-10)
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1. What is the first thing a maintenance worker should do before starting any repair job?
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A) Gather all necessary tools
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B) Notify the supervisor
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C) Assess the work area for safety hazards
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D) Begin the repair immediately
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Correct Answer: C jh jh jh




Rationale: Before beginning any repair work, assessing the area for safety hazards is critical to preve
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nt accidents and injuries. This includes checking for electrical hazards, structural instability, and che
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mical exposures.jh jh




2. Which personal protective equipment (PPE) is most important when working with electri
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cal circuits?
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A) Steel-toed boots
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B) Rubber-insulated gloves
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C) Hard hat
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D) Safety goggles
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Correct Answer: B jh jh jh




Rationale: Rubber- jh




insulated gloves provide protection against electrical shock when working with live or potentially live
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electrical circuits.
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3. What does the term "lockout/tagout" refer to?
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A) Securing tools in a locked toolbox
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B) Locking doors to prevent unauthorized access
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C) De-energizing equipment and locking it to prevent accidental startup
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D) Locking chemical storage cabinets
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Correct Answer: C jh jh jh

,Rationale: Lockout/tagout is a safety procedure that ensures dangerous machines are properly shut
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off and cannot be started again before maintenance or repair work is completed.
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4. Which type of fire extinguisher should be used on electrical fires?
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A) Water (Class A)
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B) Foam (Class B)
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C) Carbon dioxide (CO₂) – Class C
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D) Wet chemical (Class K)
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Correct Answer: C jh jh jh




Rationale: CO₂ fire extinguishers are non-conductive and safe for use on electrical fires. Water-
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based extinguishers conduct electricity and pose a shock hazard.
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5. What is the proper way to lift a heavy object to avoid injury?
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A) Bend at the waist and lift with your back
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B) Bend your knees and lift with your legs
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C) Pull with your arms only
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D) Ask someone to throw it to you
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Correct Answer: B jh jh jh




Rationale: Using your legs, not your back, prevents strain and injury. Squat down, keep the object clo
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se to your body, and lift smoothly.
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6. What is the maximum allowable concentration of carbon monoxide (CO) in residential b
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uildings according to NYC regulations? jh jh jh jh




A) 1 ppm
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B) 9 ppm
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C) 25 ppm
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D) 100 ppm
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Correct Answer: B jh jh jh




Rationale: New York City building regulations establish a maximum acceptable CO concentration of
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9 parts per million (ppm) in residential settings.
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,7. A tenant reports a gas odor in their apartment. What is the most appropriate immediate
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action?

A) Turn on the lights to see better
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B) Open windows and call 911 or the utility company from outside the building
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C) Use a match to try to find the leak
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D) Ask the tenant to stay inside while you investigate
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Correct Answer: B jh jh jh




Rationale: Natural gas odor (rotten egg smell from mercaptan) requires immediate evacuation, avoi
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ding sparks or open flames, and calling emergency services from a safe location outside.
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8. What is the proper angle for safe ladder placement (4-to-1 rule)?
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A) For every 4 feet of height, move the base 1 foot away from the wall
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B) For every 3 feet of height, move the base 2 feet away from the wall
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C) Place the ladder straight up and down against the wall
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D) For every 2 feet of height, move the base 3 feet away from the wall
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Correct Answer: A jh jh jh




Rationale: The 4-to- jh jh




1 rule is the standard safety guideline: for every 4 feet of ladder height, the base should be 1 foot awa
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y from the wall, providing a stable angle that prevents tipping.
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9. What is the purpose of a GFCI (Ground Fault Circuit Interrupter)?
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A) To increase circuit voltage
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B) To protect against electrical shock by shutting off power when a ground fault is detected
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C) To reduce energy consumption
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D) To prevent circuit breakers from tripping
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Correct Answer: B jh jh jh




Rationale: A GFCI monitors current flowing in a circuit and quickly shuts off power if it detects an im
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balance, indicating current is leaking through an unintended path.
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10. A maintenance worker discovers a frayed extension cord being used with a power tool.
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What should be done first? jh jh jh jh




A) Wrap the damaged section with tape
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B) Remove the cord from service immediately
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, C) Continue using it until replacement arrives
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D) Reduce the tool's operating time
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Correct Answer: B jh jh jh




Rationale: Damaged electrical cords present shock, burn, and fire hazards. The correct action is to re
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move the cord from service and replace it.
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SECTION 2: TOOL IDENTIFICATION & USE (Questions 11-18)
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11. Which tool is primarily used to measure electrical voltage?
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A) Hammer
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B) Screwdriver
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C) Multimeter
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D) Wrench
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Correct Answer: C jh jh jh




Rationale: Multimeters are used to measure voltage, current, and resistance in electrical circuits.
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12. Which tool is most appropriate for tightening a standard household screw?
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A) Hammer
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B) Screwdriver
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C) Wrench
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D) Pliers
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Correct Answer: B jh jh jh




Rationale: A screwdriver is specifically designed to tighten or loosen screws.
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13. Which tool is best for cutting a 2-inch PVC pipe straight?
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A) Hacksaw
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B) Pipe cutter
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C) Circular saw
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D) Utility knife
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Correct Answer: B jh jh jh




Rationale: A pipe cutter is specifically designed to cut PVC pipe cleanly and straight, producing a squ
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are cut essential for proper joint assembly.
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