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Environmental engineering
1-Dont try to cram or spend more time here just read it fast and cover syllabus then practice MCQ's cheptor of same topic to check your progress. . |
2-Wrong options are also given but dont concentrate there, Right answer is in bold format. |
Q81 ⇒ If organic matter increases in sewag,e, the
demand of oxygen will Increase [other wrong options] [Discuss in forum] Decrease Remains constant None of these |
Q82 ⇒ 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 X/2 [other wrong options] [Discuss in forum] X/4 X 2X |
Q83 ⇒ Oil and grease can be removed by Floatation tanks [other wrong options] [Discuss in forum] Rocks and screens Biological growth Disinfection |
Q84 ⇒ A pipe which is installed in the house drainage to preserve the water seal of traps is called antisiphonage pipe [other wrong options] [Discuss in forum] vent pipe waste pipe soil pipe |
Q85 ⇒ Which of the following disease is not
considered as water borne ? Malaria [other wrong options] [Discuss in forum] Typhoid Jaundice Bacillary dysentry |
Q86 ⇒ The pipe which is used to carry the discharge from sanitary fittings like bath rooms, kitchens etc. is called waste pipe [other wrong options] [Discuss in forum] soil pipe vent pipe antisiphonage pipe |
Q87 ⇒ For a cinema hall with seating capacity of
1000, the number of urinals to be provided
is 25 [other wrong options] [Discuss in forum] 5 10 40 |
Q88 ⇒ The gas from sludge digestion tank is mainly composed of methane [other wrong options] [Discuss in forum] nitrogen carbon dioxide hydrogen sulphide |
Q89 ⇒ The effect of radiation on the human body
depends on All of the above [other wrong options] [Discuss in forum] Amount of body exposed Rate of absorption Metabolic state |
Q90 ⇒ Most of the bacteria in sewage are saprophytic [other wrong options] [Discuss in forum] parasitic pathogenic anaerobic |
Q91 ⇒ Which of the following can be used for
shredding ? Any of these [other wrong options] [Discuss in forum] Respers Hoggers Crushers |
Q92 ⇒ The process of lagooning is primarily a means of disposing of sludge [other wrong options] [Discuss in forum] reducing the excessive flow in sewers increasing the capacity of storage re-servoirs increasing flow of sewage through imhoff tanks |
Q93 ⇒ The biochemical treatment of sewage effluents is essentially a process of oxidation [other wrong options] [Discuss in forum] dehydration reduction alkalinization |
Q94 ⇒ To divert excessive flow from combined sewers, the most commonly used weir is a leaping weir [other wrong options] [Discuss in forum] cipoletti weir broadcrested weir submerged weir |
Q95 ⇒ State sewage is usually Acidic [other wrong options] [Discuss in forum] Neutral Alkaline Of pH value 7 |
Q96 ⇒ The wash water from stables which contains
animal wastes is called Barn sludge [other wrong options] [Discuss in forum] Animal sludge Live sludge Horse sludge |
Q97 ⇒ pH value of fresh sewage is expected to be 8 to 11 [other wrong options] [Discuss in forum] 1 3.5 7 |
Q98 ⇒ The proper gradient of sewer lines is ensured
by Dumpy level [other wrong options] [Discuss in forum] Compass Plane - labelling Telescope |
Q99 ⇒ Tests for B.O.D. are usually made at 20°C - 5 days [other wrong options] [Discuss in forum] 0°C - 1 day 10°C - 2 days 20°C - 3 days |
Q100 ⇒ The septic tank should be cleaned at regular
interval but should not exceed 3 years [other wrong options] [Discuss in forum] 5 years 1 year 6 months |
Or |