Waste Water Engineering Mcqs

Q.  In septic tanks__________________?

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


ANSWER: See Answer
 
No explanation is available for this question!
MCQs:  Water content of sewage is about___________________?
Category: Civil Engineering Mcqs,   Published by: T-Code Scripts
MCQs:  The amount of oxygen consumed by the aerobic bacterias which cause the aerobic biological decomposition of sewage, is known_________________?
Category: Civil Engineering Mcqs,   Published by: T-Code Scripts
MCQs:  In a sedimentation tank (length L, width B, depth D) the settling velocity of a particle for a discharge Q, is____________________?
Category: Civil Engineering Mcqs,   Published by: T-Code Scripts
MCQs:  Sewer ventilating columns are generally placed at_______________?
Category: Civil Engineering Mcqs,   Published by: T-Code Scripts
MCQs:  In sewers the effect of scouring is more on__________________?
Category: Civil Engineering Mcqs,   Published by: T-Code Scripts
MCQs:  In sewers the velocity of flow should not be_________________?
Category: Civil Engineering Mcqs,   Published by: T-Code Scripts
MCQs:  For the COD test of sewage, organic matter is oxidised by K2Cr2O7 in the presence of________________?
Category: Civil Engineering Mcqs,   Published by: T-Code Scripts
MCQs:  The reduced levels of the string at the consecutive sight rails A and B are 203.575 m, 203.475 m respectively. If the difference of their R.D.s is 10 m, the gradient of the sewer line is_________________?
Category: Civil Engineering Mcqs,   Published by: T-Code Scripts
MCQs:  Dilution method of disposing of sewage, is not preferred to_______________?
Category: Civil Engineering Mcqs,   Published by: T-Code Scripts
MCQs:  Imhoff cone is used to measure________________?
Category: Civil Engineering Mcqs,   Published by: T-Code Scripts
MCQs:  The grit and silt of the grit chambers, may not be used for_________________?
Category: Civil Engineering Mcqs,   Published by: T-Code Scripts
MCQs:  If the diameter of a sewer is 150 mm, the gradient required for generating self cleansing velocity, is________________?
Category: Civil Engineering Mcqs,   Published by: T-Code Scripts
MCQs:  The sewage treatment units in which anaerobic decomposition of organic matter is used, are called________________?
Category: Civil Engineering Mcqs,   Published by: T-Code Scripts
MCQs:  If the flame of a miner’s safety lamp in a manhole extinguishes within 5 minutes, the sewer certainly contains_______________?
Category: Civil Engineering Mcqs,   Published by: T-Code Scripts
MCQs:  If the depth of flow in a circular sewer is 1/4th of its diameter D, the wetted perimeter is______________?
Category: Civil Engineering Mcqs,   Published by: T-Code Scripts
MCQs:  If q is the average sewage flow from a city of population P, the maximum sewage flow______________?
Category: Civil Engineering Mcqs,   Published by: T-Code Scripts
MCQs:  For a grit chamber, if the recommended velocity of flow is 0.2 m/sec and detention period is 2 minutes, the length of the tank, is__________________?
Category: Civil Engineering Mcqs,   Published by: T-Code Scripts
MCQs:  The sewer that unloads the sewage at the point of treatment is called_________________?
Category: Civil Engineering Mcqs,   Published by: T-Code Scripts
MCQs:  Sewer pipes are designed for maximum discharge with 25% to 33% vacant cross-sectional area for__________________?
Category: Civil Engineering Mcqs,   Published by: T-Code Scripts
MCQs:  At the junction of sewers___________________?
Category: Civil Engineering Mcqs,   Published by: T-Code Scripts