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IFGC 2021 (ICC); general practice

Fuel Gas Code Practice — IFGC 2021
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Fuel gas piping, venting, combustion air and installation code practice. Licensing requirements depend on jurisdiction.

197 questions in this track

Exam and product profile

General code practice. Not aligned to any specific state exam blueprint. State guides and credential resources ↓

Exam / general subject
Fuel Gas Code Practice — IFGC 2021
Exam code
Not verified
Code publisher (not a credential issuer)
ICC (International Code Council) — code publisher, not credential issuer
Jurisdiction
Not verified
Administrator
Not verified
CodeReady references / editions
IFGC 2021 (ICC); general practice
Official exam editions
Not verified
Official references
IFGC 2021
Official bulletin / objectives
Not verified
Eligibility summary
Not verified
Eligibility source
Not verified
Components covered (subject scope)
IFGC 2021 subject practice; not exhaustive exam coverage
Components excluded
Official exam, credential, required training, practical assessment and jurisdiction-specific alignment
Official format
Not verified
Last verified (profile research, not a bank accuracy audit)
2026-09-20

examCode, jurisdiction, administrator, officialBulletinUrl, eligibilitySummary, eligibilityUrl, format, codeEditions: Not verified — Not applicable to this independent practice product; no jurisdiction-specific current bulletin, eligibility, administrator or official exam format was verified.

Catalog timing, target and test size are custom practice settings, not official exam requirements.

No credential is conferred. No human SME review, exhaustive coverage audit, accreditation or endorsement is claimed.

No national gas-fitter exam or universal Master Gas Fitter classification is asserted. North Carolina’s board licenses fuel gas piping contracting; this establishes no nationwide equivalence. Verify eligibility, scope, adopted code, exam references and current bulletin separately for the intended jurisdiction.

197 AI-verified items exposed; items 196–198 remain drafted. See the bank ledger for adoption-mirror evidence limits.

Verification sources and scope

Verified: IFGC 2021 publisher/standard identity only; not credential or exam alignment. Publisher title and cited official characterization were read today; no operative-text audit is inferred.

Verified: Independent general-practice product scope and exclusions. Editorial product boundaries and local inventory, not official blueprint approval; technical evidence remains in the bank notes.

Not verified: Official exam facts are not verified; no specific exam is claimed. Not applicable to this independent practice product; no jurisdiction-specific current bulletin, eligibility, administrator or official exam format was verified.

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  2. Qualifying: Meet the issuer’s eligibility, application, experience, and training requirements separately.
  3. Passing: Complete the required official assessments; a practice percentage is not an official result. OSHA Outreach requires authorized training, not a CodeReady test.
  4. Receiving: Only the responsible issuer can award the credential or card after its requirements are met. Buying or completing this bank does not confer one.
State guides and credential resources

No state adoption or state-exam alignment is asserted here. Check the responsible licensing authority’s current bulletin separately.

What you get / what you don’t

What you get: Access to this practice bank, cited explanations, flashcards, browser-local progress, and practice tests. Tests use eligible reviewed items only; test sizes can be smaller than the bank.

What you don’t: A license, certification, OSHA card, exam voucher, authorized training hours, practical assessment, hands-on lab, or official performance-based question simulation. No guaranteed exam result or claim of exhaustive objective coverage.

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KNOW THE TERRITORY

What you’ll practice.

Pipe sizing and testingPractice topic
Venting and combustion airPractice topic
Installation and safetyPractice topic

Topic organization for this practice bank, not a claim of exhaustive official exam coverage. EPA mocks use 25 questions per section; A+ mocks keep the two Cores separate.

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TAKE IT FOR A TEST DRIVE

Three questions. No sign-up.

01 / Pipe sizing and testing

A natural-gas system uses the longest-length method. The most remote outlet is 85 feet from the delivery point, and another appliance is only 25 feet away. Which table-length row is used to size the shorter branch when the table lists 80 and 90 feet?

  1. The 20-foot row
  2. The 30-foot row
  3. The 80-foot row
  4. The 90-foot row
Show answer & explanation

The 90-foot row

The longest-length method uses the distance to the most remote outlet for each section, together with that section's own load. Select the next listed length that is not shorter than 85 feet: 90 feet.

IFGC 2021 402.4.1; Table 402.4(2)

02 / Pipe sizing and testing

A common gas-pipe segment supplies appliances rated 80,000, 40,000, and 30,000 Btu/h. No diversity reduction is approved. At a gas heating value of 1,000 Btu per cubic foot, what demand must that segment carry?

  1. 150 cubic feet per hour
  2. 150,000 cubic feet per hour
  3. 80 cubic feet per hour
  4. 110 cubic feet per hour
Show answer & explanation

150 cubic feet per hour

Add all connected inputs downstream of the segment: 150,000 Btu/h. Divide by the stated heating value of 1,000 Btu/ft³ to obtain 150 ft³/h; do not size the common segment for just the largest appliance.

IFGC 2021 402.2; 402.4.1

03 / Pipe sizing and testing

A Schedule 40 metallic natural-gas line has a 40-foot longest length, inlet pressure below 2 psi, 0.5-inch water-column design drop, and gas specific gravity 0.60. Table 402.4(2) lists 81 cfh for 1/2 inch, 170 cfh for 3/4 inch, and 320 cfh for 1 inch. What minimum listed size carries 150 cfh?

  1. 3/4 inch
  2. 1-1/4 inches
  3. 1 inch
  4. 1/2 inch
Show answer & explanation

3/4 inch

At the controlling 40-foot row, 1/2 inch carries only 81 cfh and is inadequate. The 3/4-inch capacity of 170 cfh covers 150 cfh, making it the smallest adequate listed size.

IFGC 2021 Table 402.4(2); 402.4.1

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