Environmental Engineering The percentage of chlorine in fresh bleaching powder is about 30 to 35 40 to 50 20 to 25 10 to 15 30 to 35 40 to 50 20 to 25 10 to 15 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering As compared to higher pH values, the contact period required for efficient chlorination at lower pH values is None of these Same Larger Smaller None of these Same Larger Smaller ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The self cleansing velocity for all sewers in India is usually 1.5 m/sec to 2.0 m/sec 3.0 m/sec to 3.5 m/sec Less than 1.0 m/sec 1.0 m/sec to 1.2 m/sec 1.5 m/sec to 2.0 m/sec 3.0 m/sec to 3.5 m/sec Less than 1.0 m/sec 1.0 m/sec to 1.2 m/sec ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering A sewer that receives the discharge of a number of house sewers is called Sub-main sewer Lateral sewer Intercepting sewer House sewer Sub-main sewer Lateral sewer Intercepting sewer House sewer ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering Facultative bacteria are able to work in Presence of water Absence of oxygen only Presence as well as in absence of oxygen Presence of oxygen only Presence of water Absence of oxygen only Presence as well as in absence of oxygen Presence of oxygen only ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The correct relation between theoretical oxygen demand (TOD), Biochemical oxygen demand (BOD) and Chemical oxygen demand (COD) is given by TOD > BOD > COD TOD > COD > BOD COD > BOD > TOD BOD > COD > TOD TOD > BOD > COD TOD > COD > BOD COD > BOD > TOD BOD > COD > TOD ANSWER DOWNLOAD EXAMIANS APP
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