NYC Health + Hospitals Supervising
Sheet Metal Worker Exam Practice
Questions And Correct Answers
(Verified Answers) Plus Rationale 2026
Q&A| Instant Download Pdf
1. A Supervising Sheet Metal Worker assigned to a healthcare facility is
reviewing a ductwork installation project. Which factor is MOST
important when supervising the installation of HVAC duct systems in
patient care areas?
A. Selecting the lowest-cost sheet metal available
B. Ensuring proper airflow, cleanliness, sealing, and compliance with
healthcare ventilation requirements
C. Increasing duct size regardless of design specifications
D. Reducing the number of inspection points to speed completion
Correct Answer: B
Healthcare facilities require strict control of airflow, filtration, pressure
relationships, and contamination risks. Supervisors must ensure ductwork
meets design specifications and infection-control requirements.
2. Which type of sheet metal is commonly used for HVAC duct
fabrication because of its strength, durability, and corrosion
resistance?
,A. Galvanized steel
B. Cast iron
C. Aluminum foil only
D. Copper wire
Correct Answer: A
Galvanized steel is widely used in HVAC duct fabrication because the zinc
coating protects the steel from corrosion while maintaining structural
strength.
3. A Supervising Sheet Metal Worker must determine whether a duct
installation follows the approved drawings. What document should be
referenced first?
A. Employee time sheet
B. Material delivery invoice
C. Approved construction drawings and specifications
D. Previous project photographs
Correct Answer: C
Approved drawings and specifications provide the authorized dimensions,
materials, routing, and installation requirements for the project.
4. When fabricating rectangular ductwork, which tool is primarily used to
create accurate layout lines on sheet metal?
A. Chalk line and measuring tools
B. Pipe wrench
C. Voltage tester
D. Mason’s trowel
Correct Answer: A
,Accurate layout is essential for proper duct dimensions and assembly.
Measuring tools and chalk lines establish precise cutting and forming
locations.
5. What is the primary purpose of installing duct insulation?
A. To increase duct weight
B. To improve thermal performance and reduce condensation
C. To eliminate the need for duct supports
D. To replace air filters
Correct Answer: B
Duct insulation reduces heat transfer, improves energy efficiency, and
prevents moisture problems caused by condensation.
6. A supervisor notices that workers are installing duct supports farther
apart than specified. What should the supervisor do?
A. Ignore the issue if the duct appears stable
B. Require installation according to approved support requirements
C. Remove all ductwork immediately
D. Allow workers to choose their own spacing
Correct Answer: B
Supervisors are responsible for ensuring installations comply with
engineering requirements, safety standards, and specifications.
7. Which HVAC component controls the direction and volume of airflow
inside a duct system?
A. Damper
B. Thermostat wire
C. Compressor belt
D. Expansion tank
, Correct Answer: A
Dampers regulate airflow by opening, closing, or adjusting the passage
through ductwork.
8. Before entering a mechanical room to supervise work, a sheet metal
supervisor should first verify:
A. The color of the equipment
B. Required safety procedures and hazards
C. The brand name of tools being used
D. The age of the building
Correct Answer: B
Mechanical rooms may contain electrical, mechanical, chemical, and
physical hazards requiring proper safety evaluation before work begins.
9. Which safety device is designed to protect workers from falls when
working at elevated locations?
A. Fall arrest system
B. Sheet metal gauge
C. Duct sealant
D. Pipe insulation
Correct Answer: A
Fall arrest systems protect workers from serious injury when working on
elevated surfaces or structures.
10. A duct leakage test is performed primarily to determine
whether:
A. The duct color matches specifications
B. Air escapes through unintended openings
Sheet Metal Worker Exam Practice
Questions And Correct Answers
(Verified Answers) Plus Rationale 2026
Q&A| Instant Download Pdf
1. A Supervising Sheet Metal Worker assigned to a healthcare facility is
reviewing a ductwork installation project. Which factor is MOST
important when supervising the installation of HVAC duct systems in
patient care areas?
A. Selecting the lowest-cost sheet metal available
B. Ensuring proper airflow, cleanliness, sealing, and compliance with
healthcare ventilation requirements
C. Increasing duct size regardless of design specifications
D. Reducing the number of inspection points to speed completion
Correct Answer: B
Healthcare facilities require strict control of airflow, filtration, pressure
relationships, and contamination risks. Supervisors must ensure ductwork
meets design specifications and infection-control requirements.
2. Which type of sheet metal is commonly used for HVAC duct
fabrication because of its strength, durability, and corrosion
resistance?
,A. Galvanized steel
B. Cast iron
C. Aluminum foil only
D. Copper wire
Correct Answer: A
Galvanized steel is widely used in HVAC duct fabrication because the zinc
coating protects the steel from corrosion while maintaining structural
strength.
3. A Supervising Sheet Metal Worker must determine whether a duct
installation follows the approved drawings. What document should be
referenced first?
A. Employee time sheet
B. Material delivery invoice
C. Approved construction drawings and specifications
D. Previous project photographs
Correct Answer: C
Approved drawings and specifications provide the authorized dimensions,
materials, routing, and installation requirements for the project.
4. When fabricating rectangular ductwork, which tool is primarily used to
create accurate layout lines on sheet metal?
A. Chalk line and measuring tools
B. Pipe wrench
C. Voltage tester
D. Mason’s trowel
Correct Answer: A
,Accurate layout is essential for proper duct dimensions and assembly.
Measuring tools and chalk lines establish precise cutting and forming
locations.
5. What is the primary purpose of installing duct insulation?
A. To increase duct weight
B. To improve thermal performance and reduce condensation
C. To eliminate the need for duct supports
D. To replace air filters
Correct Answer: B
Duct insulation reduces heat transfer, improves energy efficiency, and
prevents moisture problems caused by condensation.
6. A supervisor notices that workers are installing duct supports farther
apart than specified. What should the supervisor do?
A. Ignore the issue if the duct appears stable
B. Require installation according to approved support requirements
C. Remove all ductwork immediately
D. Allow workers to choose their own spacing
Correct Answer: B
Supervisors are responsible for ensuring installations comply with
engineering requirements, safety standards, and specifications.
7. Which HVAC component controls the direction and volume of airflow
inside a duct system?
A. Damper
B. Thermostat wire
C. Compressor belt
D. Expansion tank
, Correct Answer: A
Dampers regulate airflow by opening, closing, or adjusting the passage
through ductwork.
8. Before entering a mechanical room to supervise work, a sheet metal
supervisor should first verify:
A. The color of the equipment
B. Required safety procedures and hazards
C. The brand name of tools being used
D. The age of the building
Correct Answer: B
Mechanical rooms may contain electrical, mechanical, chemical, and
physical hazards requiring proper safety evaluation before work begins.
9. Which safety device is designed to protect workers from falls when
working at elevated locations?
A. Fall arrest system
B. Sheet metal gauge
C. Duct sealant
D. Pipe insulation
Correct Answer: A
Fall arrest systems protect workers from serious injury when working on
elevated surfaces or structures.
10. A duct leakage test is performed primarily to determine
whether:
A. The duct color matches specifications
B. Air escapes through unintended openings
