For a 1 inch pipe 1,000 feet long, would a leakage of 150 gallons per 24 hours be acceptable?

For a 1 inch pipe 1,000 feet long, would a leakage of 150 gallons per 24 hours be acceptable?

• A. Acceptable
• B. Not acceptable
• C. Requires retest
• D. Not enough information

Answer: (A)

The test is checking that leakage is kept within an approved allowance for a given pipe size and length. In leakage testing, a small amount of seepage is permitted, and the allowable rate increases with longer runs and larger diameters, but is still a-defined limit in the test procedure. For a 1-inch line that is 1,000 feet long, 150 gallons in 24 hours is the specified leakage limit used by the procedure. That breaks down to about 6.25 gallons per hour for the entire line, or roughly 0.1 gallon per minute. This rate is considered acceptable because it stays within the allowable leakage for this combination of size and length. If the leakage were higher than this limit, repairs and a retest would be required. Not enough information isn’t the right choice here because the problem provides the pipe size, length, and leakage rate, which together determine whether it’s within the standard allowance.

The test is checking that leakage is kept within an approved allowance for a given pipe size and length. In leakage testing, a small amount of seepage is permitted, and the allowable rate increases with longer runs and larger diameters, but is still a-defined limit in the test procedure.

For a 1-inch line that is 1,000 feet long, 150 gallons in 24 hours is the specified leakage limit used by the procedure. That breaks down to about 6.25 gallons per hour for the entire line, or roughly 0.1 gallon per minute. This rate is considered acceptable because it stays within the allowable leakage for this combination of size and length.

If the leakage were higher than this limit, repairs and a retest would be required. Not enough information isn’t the right choice here because the problem provides the pipe size, length, and leakage rate, which together determine whether it’s within the standard allowance.