MP F1 SP1

________ design shall be such as to produce a clarified effluent consistent with accepted standards and shall provide adequate space for sludge and scum accumulations.

• Sewage treatment plant

• Septic tank

• Water treatment

• Cesspool

The inlet compartment of any septic tank shall be not less than _____ of the total capacity of the tank, nor less than ____ liquid capacity, and shall be at least 1.5 m x 0.9 m.

• 2/3 ; 2 m3

• 3/8 ; 2 m3

• 1/3 ; 1 m3

• 3/8 ; 1 m3

The second compartment of any septic tank shall have a minimum capacity of _____ and a maximum capacity of _____ of the total capacity such tank.

• 2 m3 ; 1/3

• 2 m3 ; 2/3

• 1 m3 ; 1/3

• 1 m3 ; 2/3

In septic tanks having over 6 m3 capacity, the secondary compartment may not less than ______ in length.

• 3 m

• 2 m

• 1.5 m

• 1.2 m

Access to each septic tank shall be provided by at least two manholes _____ in minimum dimension or by an equivalent removable cover slab.

• 505 mm

• 507 mm

• 508 mm

• 509 mm

Wherever a first compartment exceeds 3.7 m in length, an ________ shall be provided over the baffle wall.

• Additional compartment

• Additional manhole

• Additional inlet and outlet pipes

• Additional vertical clearances

The vertical leg of a round inlet and outlet fittings shall not be less in size than the connecting sewer pipe nor less than ______.

• 100.6 mm

• 102.6 mm

• 104.6 mm

• 106.6 mm

A baffle type fitting shall have the equivalent cross-sectional area of the connecting sewer pipe and not less than a _____ horizontal dimension when measured at the inlet and outlet pipe inverts.

• 100.6 mm

• 102.6 mm

• 104.6 mm

• 106.6 mm

The inlet and outlet pipe or baffle shall extend _____ above and at least _____ below the water surface.

• 101.6 mm ; 304.8 mm

• 102.6 mm ; 304.8 mm

• 104.6 mm ; 308.4 mm

• 106.6 mm ; 308.4 mm

The invert of the inlet pipe shall be at a level not less than ____ above the invert of the outlet pipe.

• 50.6 mm

• 51 mm

• 50.8 mm

• 52 mm