NATE GS Installation Practice Questions - NATE Gas Heating (Air) Installation Specialty Exam - NATE GS Installation Practice Questions - NATE Gas Heating (Air) Installation Specialty Exam

Question 1

When setting an upflow gas furnace on a combustible wood floor, what must the installer verify to comply with the appliance listing and the National Fuel Gas Code?

Any furnace may be set directly on wood with no special provision The furnace is listed for floor mounting or a listed combustible-floor base is used A 1-inch air gap is left under every furnace regardless of listing Combustible-floor installation is never permitted for gas furnaces

Correct Answer:

The furnace is listed for floor mounting or a listed combustible-floor base is used

Question 2

A horizontal furnace is being suspended in an attic. Which installation practice best ensures safe, serviceable operation?

Hang it from the flue pipe to save floor space Provide a level, supported platform or hangers rated for the weight with required service clearance Set it directly on unsupported ceiling drywall Omit a service platform because attics are rarely entered

Correct Answer:

Provide a level, supported platform or hangers rated for the weight with required service clearance

Question 3

Per the National Fuel Gas Code (NFPA 54), a space is considered a 'confined space' for combustion-air purposes when its volume is less than:

10 cubic feet per 1,000 Btu/h of appliance input 25 cubic feet per 1,000 Btu/h of appliance input 50 cubic feet per 1,000 Btu/h of appliance input 100 cubic feet per 1,000 Btu/h of appliance input

Correct Answer:

50 cubic feet per 1,000 Btu/h of appliance input

Question 4

Using the standard two-opening 'all indoor air' method, each combustion-air opening connecting a confined furnace space to an adjacent room must have a minimum free area of:

1 square inch per 4,000 Btu/h 1 square inch per 1,000 Btu/h, not less than 100 square inches 1 square inch per 2,000 Btu/h Half the appliance input in square inches

Correct Answer:

1 square inch per 1,000 Btu/h, not less than 100 square inches

Question 5

When supplying combustion air to a confined space using two permanent openings drawn directly from outdoors through vertical ducts, each opening must have a minimum free area of:

1 square inch per 1,000 Btu/h 1 square inch per 2,000 Btu/h 1 square inch per 4,000 Btu/h 1 square inch per 3,000 Btu/h

Correct Answer:

1 square inch per 4,000 Btu/h

Exam overview

About this Exam

Prepare with the NATE GS Installation Practice Questions - NATE Gas Heating (Air) Installation Specialty Exam practice quiz. This question bank includes 100 questions covering furnace, pressure, installer, blower, and vent. Use it to review important concepts, identify knowledge gaps, and build confidence for the related exam, course, or assessment.

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NATE GS Installation Practice Questions - NATE Gas Heating (Air) Installation Specialty Exam

This practice set contains 100 questions from the matching question bank and focuses on furnace, pressure, installer, blower, and vent. Work through each question carefully, review the provided solutions, and revisit topics that need more study before your next attempt.

This is an independent study resource intended for practice and review; it is not an official examination or an endorsement by any organization named in the title.

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NATE GS Installation Practice Questions - NATE Gas Heating (Air) Installation Specialty Exam

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