Questions and answers for exam Preparation

MCQs

Total Questions : 1556 | Page 150 of 156 pages

Question 1491. PH value of sludge during alkaline regression stage, is__________________?

More than 7
Less than 7
Less than 6
More than 6

Discuss Question

Answer: Option A. -> More than 7
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!

Question 1492. Pick up the incorrect size of stone ware sewers_________________?

52.5 cm
67.5 cm
82.5 cm
None of these

Discuss Question

Answer: Option D. -> None of these
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!

Question 1493. Weight of water, the hydraulic mean depth of the sewer and the bed slope w is the unit of the sewer, then the tractive force exerted by flowing water, is________________________?

w r S S
w r1/2
w r S
w r2/3

Discuss Question

Answer: Option A. -> w r S S
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!

Question 1494. The sewers___________________?

Must be of adequate size to avoid over flow
Must flow under gravity ½ to ¾ full
Must be laid at least 2 to 3 m deep to collect /water from the basements
All the above

Discuss Question

Answer: Option D. -> All the above
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!

Question 1495. In a fully mechanised composting plant, involves________________?

Mechanized receipt
Mechanized segregation
Mechanized pulverising of refuse
All of these

Discuss Question

Answer: Option D. -> All of these
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!

Question 1496. The ratio of the diameter of a circular section and the side of a square section hydraulically equivalent, is____________________?

1.095
1.085
1.075
1.065

Discuss Question

Answer: Option A. -> 1.095
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!

Question 1497. Stone ware pipes are_______________?

Highly resistant to sulphide corrosion
Highly impervious
Hydraulically efficient because of their smooth interior surface
Especially suited to pressure pipes

Discuss Question

Answer: Option D. -> Especially suited to pressure pipes
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!

Question 1498. Drop manholes are the manholes___________________?

Without entry ladders
Without manhole covers
With depths more than 3.5 m
Having drains at different levels

Discuss Question

Answer: Option D. -> Having drains at different levels
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!

Question 1499. In septic tanks__________________?

Free board of 0.3 m may be provided
The baffles or tees are extended up to top level of scum
The clear space between the baffle top and covering slab is about 7.5 cm
All the above

Discuss Question

Answer: Option D. -> All the above
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!

Question 1500. If 2% solution of a sewage sample is incubated for 5 days at 20°C and depletion of oxygen was found to be 5 ppm, B.O.D. of the sewage is____________________?