CO140 - 2021 International Fuel Gas Code Chap 4 - Final Exam

CO140 - 2021 International Fuel Gas Code Chap 4 - Final Exam

Assessment

Flashcard

Professional Development

University

Hard

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10 questions

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1.

FLASHCARD QUESTION

Front

What is the capacity in cubic feet of gas per hour for a 3/4" diameter schedule 40 metallic pipe 40 feet in length?

Back

129

2.

FLASHCARD QUESTION

Front

Reference Table 403.8.2, What is the approximate number of threads to be cut on a 3/4" iron pipe with a 3/4" approximate length of threaded portion?

Back

10

3.

FLASHCARD QUESTION

Front

Underground piping systems shall be installed a minimum depth of ___________ below grade.

Back

12 inches

4.

FLASHCARD QUESTION

Front

When testing a gas system having a volume less than 10 cubic feet or a system in a single family dwelling, the test duration shall be not less than _____________.

Back

10 minutes

5.

FLASHCARD QUESTION

Front

Piping for other than dry gas conditions shall be sloped not less than _______ in 15 feet to prevent traps.

Back

1/4 inch

6.

FLASHCARD QUESTION

Front

Reference Table 413.10.2.3, What is the minimum separation in feet for atmospheric venting of CNG to property lot lines?

Back

15 feet

7.

FLASHCARD QUESTION

Front

What is the spacing of supports for a 3/4" nominal size of steel pipe?

Back

8 feet

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