Environmental Engineering in CE Threshold limit value (TLV) i.e., the maximum permissible safe limit of phosgene gas which Hitler used to use to kill his enemies in 'gas chamber' is about __________ ppm. 100-200 100-1000 10-100 100-200 100-1000 10-100 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE In troposphere (the weather domain), the temperature 't' at height 'h' above the spa level in metres is given by (where, temperature at sea level is 15°C and t is in °C.) t = 15 - 0.0065h t = 15 + 0.0065h t = 15 - 0.0035h t = 0.0035h -15 t = 15 - 0.0065h t = 15 + 0.0065h t = 15 - 0.0035h t = 0.0035h -15 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Ambient noise level can be reduced by __________ decibels by planting trees (like coconut, neem etc.) near public utility buildings (like hospitals & schools). 15-20 43961 43832 25-30 15-20 43961 43832 25-30 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Maximum permissible turbidity in potable water is __________ ppm. 10 1 250 1000 10 1 250 1000 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Presence of __________ hardness is responsible for the temporary hardness in water. Choride Calcium Sulphate Carbonate Choride Calcium Sulphate Carbonate ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Presence of dissolved impurities of __________ is responsible for the red brownish color of water. Iron & manganese Carbonates Bi-carbonates Arsenic Iron & manganese Carbonates Bi-carbonates Arsenic ANSWER DOWNLOAD EXAMIANS APP
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