Which of the following pumps in used to pump sewage solids with liquid sewage without clogging the pump is ?

Related Mcqs:

1. The non-clog pump which permits solid matter to pass out with the liquid sewage, is________________?

   A. Centrifugal pump B. Reciprocating pump C. Pneumatic ejector D. None of these...

2. Clogging of sewers, is caused due to_______________?

   A. Silting B. Low discharge C. Greasy and oily matters D. All the above...

3. In sewage, the solids in mg per litre is__________________?

   A. 100 to 500 B. 500 to 1000 C. 1000 to 1500 D. 1500 to 2000...

4. In 1000 kg of sewage, the total solids approximate___________________?

   A. 0.5 to 1.0 kg B. 1 kg to 2.0 kg C. 5 kg to 7.5 kg D. 7.5 kg to 10 kg...

5. If a 2% solution of sewage sample is incubated for 5 days at 20°C and the dissolved oxygen depletion was found to be 8 mg/l. The BOD of the sewage is_________________?

   A. 100 mg/l B. 200 mg/l C. 300 mg/l D. 400 mg/l...

6. The density of population over 40 hectares is 250/hectare. If water supply demand per day is 200 litres and sewage discharge is 80% of water supply, the sewage flow in sewers of separate system, is_____________________?

   A. 0.05552 cumec B. 0.05554 cumec C. 0.05556 cumec D. 0.0556 cumec...

7. If the depletion of oxygen is found to be 5 ppm after incubating a 2.5% solution of sewage sample for 5 days at 21°C, B.O.D. of the sewage is_____________________?

   A. 50 ppm B. 100 ppm C. 150 ppm D. 200 ppm...

8. A five day B.O.D. at 15°C of the sewage of a town is 100 kg/day. If the 5 day B.O.D. per head at 15°C for standard sewage is 0.1 kg/day, the population equivalent is____________________?

   A. 100 B. 1000 C. 5000 D. 10000...

9. For sewer mains of 0.5 to 1 m diameter, the ratio of maximum daily sewage flow to the average daily sewage flow is assumed__________________?

   A. 1.5 B. 2.0 C. 2.5 D. 3.0...

10. If the depletion of oxygen is found to be 2.5 mg/litre after incubating 2.5 ml of sewage diluted to 250 ml for 5 days at 20°C, B.O.D. of the sewage is_________________?

    A. 50 mg/l B. 100 mg/l C. 150 mg/l D. 250 mg/l...