NYC NYCHA Maintenance Worker
(CUNY) Exam Practice Test Questions
And Correct Answers (Verified Answers)
Plus Rationales 2026 Q&A | Instant
Download Pdf
1. Which tool is best suited for tightening a hexagonal bolt?
a) Flathead screwdriver
b) Phillips screwdriver
c) Wrench
d) Pliers
Rationale: A wrench is designed to fit hexagonal bolts for tightening
or loosening.
2. What is the first step before performing electrical maintenance?
a) Wear gloves
b) Turn off the power supply
, c) Use a multimeter
d) Inspect the wires
Rationale: Turning off the power ensures safety and prevents
electrical shock.
3. Which type of fire extinguisher is used for electrical fires?
a) Water
b) Foam
c) CO2
d) Wet chemical
Rationale: CO2 extinguishers do not conduct electricity and are safe
for electrical fires.
4. What is the purpose of a plumb line?
a) Measure angles
b) Check vertical alignment
c) Cut materials
d) Level surfaces
Rationale: A plumb line is used to establish vertical lines for
construction or maintenance work.
5. When mixing cement, what is the proper water-to-cement ratio for
general use?
a) 1:2
b) 1:3
c) 1:4
, d) 1:5
Rationale: A 1:3 ratio of water to cement is commonly used to
achieve workable consistency.
6. Which material is most resistant to corrosion?
a) Iron
b) Steel
c) Stainless steel
d) Aluminum
Rationale: Stainless steel contains chromium, which forms a
protective oxide layer preventing corrosion.
7. How often should fire extinguishers be inspected in a residential
building?
a) Daily
b) Monthly
c) Quarterly
d) Annually
Rationale: Monthly inspections ensure extinguishers are functional
and in proper condition.
8. What is the proper way to lift a heavy object?
a) Bend at the waist
b) Bend at the knees and keep back straight
c) Pull with your arms only
d) Twist your torso while lifting
, Rationale: Bending at the knees reduces strain on the back and
prevents injury.
9. Which tool is used to check if a circuit is live?
a) Wire stripper
b) Voltage tester
c) Hammer
d) Screwdriver
Rationale: A voltage tester indicates whether electricity is present in
a circuit.
10. What is the recommended PSI for inflating standard residential
water pipes?
a) 20–40 PSI
b) 40–60 PSI
c) 60–80 PSI
d) 80–100 PSI
Rationale: Residential water systems are designed to operate safely
between 40–60 PSI.
11. Which type of paint is best for metal surfaces exposed to the
outdoors?
a) Latex
b) Oil-based
c) Enamel
d) Watercolor
(CUNY) Exam Practice Test Questions
And Correct Answers (Verified Answers)
Plus Rationales 2026 Q&A | Instant
Download Pdf
1. Which tool is best suited for tightening a hexagonal bolt?
a) Flathead screwdriver
b) Phillips screwdriver
c) Wrench
d) Pliers
Rationale: A wrench is designed to fit hexagonal bolts for tightening
or loosening.
2. What is the first step before performing electrical maintenance?
a) Wear gloves
b) Turn off the power supply
, c) Use a multimeter
d) Inspect the wires
Rationale: Turning off the power ensures safety and prevents
electrical shock.
3. Which type of fire extinguisher is used for electrical fires?
a) Water
b) Foam
c) CO2
d) Wet chemical
Rationale: CO2 extinguishers do not conduct electricity and are safe
for electrical fires.
4. What is the purpose of a plumb line?
a) Measure angles
b) Check vertical alignment
c) Cut materials
d) Level surfaces
Rationale: A plumb line is used to establish vertical lines for
construction or maintenance work.
5. When mixing cement, what is the proper water-to-cement ratio for
general use?
a) 1:2
b) 1:3
c) 1:4
, d) 1:5
Rationale: A 1:3 ratio of water to cement is commonly used to
achieve workable consistency.
6. Which material is most resistant to corrosion?
a) Iron
b) Steel
c) Stainless steel
d) Aluminum
Rationale: Stainless steel contains chromium, which forms a
protective oxide layer preventing corrosion.
7. How often should fire extinguishers be inspected in a residential
building?
a) Daily
b) Monthly
c) Quarterly
d) Annually
Rationale: Monthly inspections ensure extinguishers are functional
and in proper condition.
8. What is the proper way to lift a heavy object?
a) Bend at the waist
b) Bend at the knees and keep back straight
c) Pull with your arms only
d) Twist your torso while lifting
, Rationale: Bending at the knees reduces strain on the back and
prevents injury.
9. Which tool is used to check if a circuit is live?
a) Wire stripper
b) Voltage tester
c) Hammer
d) Screwdriver
Rationale: A voltage tester indicates whether electricity is present in
a circuit.
10. What is the recommended PSI for inflating standard residential
water pipes?
a) 20–40 PSI
b) 40–60 PSI
c) 60–80 PSI
d) 80–100 PSI
Rationale: Residential water systems are designed to operate safely
between 40–60 PSI.
11. Which type of paint is best for metal surfaces exposed to the
outdoors?
a) Latex
b) Oil-based
c) Enamel
d) Watercolor
