NYC HEALTH + HOSPITALS SHEET METAL WORKER
EXAM QUESTIONS AND CORRECT ANSWERS
(VERIFIED ANSWERS) Q&A 2027 |INSTANT
DOWNLOAD PDF
1. What is the primary purpose of sheet-metal ductwork in
an HVAC system?
A. To carry electrical current
B. To transport conditioned or ventilated air
C. To support plumbing fixtures
D. To store refrigerant
Answer: B. To transport conditioned or ventilated air
Rationale: Ductwork provides a controlled pathway for
moving supply, return, exhaust, and outside air.
2. Which material is commonly used for HVAC ductwork?
A. Galvanized steel
B. Glass
C. Wood
D. Rubber only
Answer: A. Galvanized steel
Rationale: Galvanized steel is durable and has good
corrosion resistance, making it common for duct
fabrication.
3. What does HVAC stand for?
A. Heating, Ventilation, and Air Conditioning
, B. Heat Valve and Cooling
C. Heating Vacuum and Control
D. High-Velocity Air Circulation
Answer: A. Heating, Ventilation, and Air Conditioning
Rationale: HVAC systems control temperature, air
movement, ventilation, and indoor environmental
conditions.
4. Which tool is commonly used to make a straight cut in
sheet metal?
A. Aviation snips
B. Pipe wrench
C. Chisel hammer only
D. Crowbar
Answer: A. Aviation snips
Rationale: Aviation snips are designed for controlled
cutting of sheet metal.
5. What is the main purpose of PPE?
A. Increase production speed
B. Protect workers from workplace hazards
C. Replace safe work procedures
D. Eliminate the need for training
Answer: B. Protect workers from workplace hazards
Rationale: PPE provides a protective barrier against
hazards such as sharp metal, dust, noise, and falling
objects.
,6. Which PPE is especially important when cutting sheet
metal?
A. Safety glasses and appropriate gloves
B. Sandals
C. Loose jewelry
D. Earbuds
Answer: A. Safety glasses and appropriate gloves
Rationale: Cutting operations can create sharp edges and
metal particles that can injure hands and eyes.
7. What is the purpose of a duct elbow?
A. Change the direction of airflow
B. Measure duct thickness
C. Seal a wall opening
D. Reduce electrical voltage
Answer: A. Change the direction of airflow
Rationale: Elbows redirect air, commonly by 45° or 90° or
other specified angles.
8. What does a duct transition do?
A. Changes duct size or shape
B. Measures air temperature
C. Removes electrical grounding
D. Cuts insulation
Answer: A. Changes duct size or shape
Rationale: Transitions connect ducts of different
dimensions or configurations.
, 9. Why are duct joints sealed?
A. To increase leakage
B. To prevent unwanted air leakage
C. To make the duct heavier
D. To change air temperature
Answer: B. To prevent unwanted air leakage
Rationale: Proper sealing improves system efficiency and
helps maintain designed airflow.
10. Which instrument is commonly used to measure
length?
A. Tape measure
B. Level only
C. Hammer
D. Snips
Answer: A. Tape measure
Rationale: A tape measure provides direct linear
measurements needed for fabrication and installation.
11. What is the purpose of a duct flange?
A. Connect and support duct sections
B. Measure voltage
C. Remove insulation
D. Sharpen snips
Answer: A. Connect and support duct sections
Rationale: Flanges provide a means of joining duct
sections securely.
EXAM QUESTIONS AND CORRECT ANSWERS
(VERIFIED ANSWERS) Q&A 2027 |INSTANT
DOWNLOAD PDF
1. What is the primary purpose of sheet-metal ductwork in
an HVAC system?
A. To carry electrical current
B. To transport conditioned or ventilated air
C. To support plumbing fixtures
D. To store refrigerant
Answer: B. To transport conditioned or ventilated air
Rationale: Ductwork provides a controlled pathway for
moving supply, return, exhaust, and outside air.
2. Which material is commonly used for HVAC ductwork?
A. Galvanized steel
B. Glass
C. Wood
D. Rubber only
Answer: A. Galvanized steel
Rationale: Galvanized steel is durable and has good
corrosion resistance, making it common for duct
fabrication.
3. What does HVAC stand for?
A. Heating, Ventilation, and Air Conditioning
, B. Heat Valve and Cooling
C. Heating Vacuum and Control
D. High-Velocity Air Circulation
Answer: A. Heating, Ventilation, and Air Conditioning
Rationale: HVAC systems control temperature, air
movement, ventilation, and indoor environmental
conditions.
4. Which tool is commonly used to make a straight cut in
sheet metal?
A. Aviation snips
B. Pipe wrench
C. Chisel hammer only
D. Crowbar
Answer: A. Aviation snips
Rationale: Aviation snips are designed for controlled
cutting of sheet metal.
5. What is the main purpose of PPE?
A. Increase production speed
B. Protect workers from workplace hazards
C. Replace safe work procedures
D. Eliminate the need for training
Answer: B. Protect workers from workplace hazards
Rationale: PPE provides a protective barrier against
hazards such as sharp metal, dust, noise, and falling
objects.
,6. Which PPE is especially important when cutting sheet
metal?
A. Safety glasses and appropriate gloves
B. Sandals
C. Loose jewelry
D. Earbuds
Answer: A. Safety glasses and appropriate gloves
Rationale: Cutting operations can create sharp edges and
metal particles that can injure hands and eyes.
7. What is the purpose of a duct elbow?
A. Change the direction of airflow
B. Measure duct thickness
C. Seal a wall opening
D. Reduce electrical voltage
Answer: A. Change the direction of airflow
Rationale: Elbows redirect air, commonly by 45° or 90° or
other specified angles.
8. What does a duct transition do?
A. Changes duct size or shape
B. Measures air temperature
C. Removes electrical grounding
D. Cuts insulation
Answer: A. Changes duct size or shape
Rationale: Transitions connect ducts of different
dimensions or configurations.
, 9. Why are duct joints sealed?
A. To increase leakage
B. To prevent unwanted air leakage
C. To make the duct heavier
D. To change air temperature
Answer: B. To prevent unwanted air leakage
Rationale: Proper sealing improves system efficiency and
helps maintain designed airflow.
10. Which instrument is commonly used to measure
length?
A. Tape measure
B. Level only
C. Hammer
D. Snips
Answer: A. Tape measure
Rationale: A tape measure provides direct linear
measurements needed for fabrication and installation.
11. What is the purpose of a duct flange?
A. Connect and support duct sections
B. Measure voltage
C. Remove insulation
D. Sharpen snips
Answer: A. Connect and support duct sections
Rationale: Flanges provide a means of joining duct
sections securely.
