ACTUAL Exam Questions and CORRECT
Answers
What are the capacities for each side of a septic tank? - CORRECT ANSWER - 2/3 inlet side,
1/3 outlet side
How many inches lower should the outlet be from the inlet in a septic tank? - CORRECT
ANSWER - 3"
What information must be present on the outlet side of a septic tank? - CORRECT
ANSWER - - Name of manufacturer
- Date manufactured
- Size of tank in gallons
- External load limit
- Warning placard
How many additional gallons per bedroom are required for each bedroom beyond 3? -
CORRECT ANSWER - 125 gallons
How many additional gallons per bedroom are required for each bedroom beyond 4? -
CORRECT ANSWER - 225 gallons
How far below finished grade can clean out and baffle inspection manholes be? - CORRECT
ANSWER - No deeper than 12"
Tank riser covers shall be at least _________ lbs, or_______________________, or
_______________________________ - CORRECT ANSWER - 59 lbs, tank covers shall
remain on tank clean outs, a secondary safety device shall be provided
, What are the 3 main functions of a septic tank? - CORRECT ANSWER - 1. Removes most of
the settleable solids
2. Provides and effluent of relatively uniform physical, chemical and biological characteristics
3. Provides some reduction in pollution levels in the effluent
Where should perc tests be conducted? - CORRECT ANSWER - In primary and reserve
septic areas
How many inches maximum should a perc hole be? - CORRECT ANSWER - 12"
How many inches of water shall be used for a perc test presoak? - CORRECT ANSWER - 12"
How many inches of water shall be used for a perc test? - CORRECT ANSWER - 12"
How many consecutive readings shall be taken for a perc test - CORRECT ANSWER -3
Perc test readings are measured to the nearest ______" - CORRECT ANSWER - 1/8"
What is the perc rate calculation? - CORRECT ANSWER - Time/Reading in inches
No leaching system shall be constructed in areas where: - CORRECT ANSWER - - High
groundwater
- Surface flooding
- Ledge rock
Leaching system shall be a minimum of 18" above: - CORRECT ANSWER - - Groundwater
- Mottling
- Hardpan