For satisfactory working of a sludge digestion unit, the pH range of digested sludge should be maintained as___________________?

Related Mcqs:

The length of rectangular sedimentation tank should not be more than_______________?

A. B B. 2B C. 4B D. 8B where B is the width of the tank...

A pipe conveying sewage from plumbing system of a single building to common sewer or point of immediate disposal is called________________?

A. house sewer B. lateral sewer C. main sewer D. submain sewer...

For the same solid content, if the quantity of sludge with moisture content of 98% is X, then the quantity of sludge with moisture content of 96% will be__________________?

A. X/4 B. X/2 C. X D. 2X...

Dissolved oxygen in streams is______________?

A. maximum at noon B. minimum at noon C. maximum at midnight D. same throughout the day...

Cleaning is done by________________?

1) scraping and removal in filters slow sand 2) back washing in slow sand filters 3) scraping and removal in filters rapid sand 4) back washing in rapid sand filters The correct answer is A. (1) and (2) B. (2) and (3) C. (1) and (4) D. (2) and (4)...