Environmental Engineering in CE Presence of a certain minimum quantity of flourine is desirable in potable water to prevent Scale formation Water-borne disease Dental cavities Corrosion Scale formation Water-borne disease Dental cavities Corrosion ANSWER DOWNLOAD EXAMIANS APP
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. 100-1000 100-200 10-100 100-1000 100-200 10-100 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Which is the most widely used coagulant for the treatment of turbid water? Sodium aluminate Alum (aluminium sulphate) Lime Ferric chloride Sodium aluminate Alum (aluminium sulphate) Lime Ferric chloride ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Presence of volatile compounds like gasoline, oil, alcohol, ether etc. in municipal sewers may cause Corrosion Explosion Undesirable plant growth Non biodegradable foam Corrosion Explosion Undesirable plant growth Non biodegradable foam ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Sound produced by an automobile horn heard at a distance of 1.5 metres corresponds to about __________ decibels. 180 120 150 90 180 120 150 90 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Major sources of noise in furnace operation arises from air inspirators, combustion, side wall vibrations and fluctuation in the process heat load. A 50% increase in fuel firing rate may increase the furnace noise level by about __________ decibels. 3 100 70 30 3 100 70 30 ANSWER DOWNLOAD EXAMIANS APP