Water Supply Engineering Questions

• The transitional middle portion of a logistic curve follows
• Most satisfactory formula for an estimate of fire demand Q for a city of population P in thousands for Indian conditions, is
• Water supply system includes
• Biochemical Oxygen Demand (B.O.D.) of safe drinking water must be
• Turbidity of raw water is a measure of
• The fire demand of a city may be worked out by
• Most commonly used pump for lifting water in water supply mains, is
• Surge tanks are used
• Asbestos pipes are
• Hard water for public water supply is discarded because
• Rapid gravity filter can only remove turbidity of water upto
• One degree of hardness of water means a content of salts of
• Mostly used coagulant, is
• If p is total internal pressure, d is diameter of pressure conduit and t is thickness of conduit, the Hoop's stress is
• Hard water contains
• After cleaning a slow sand filter, the filtered water is not used for
• Hardness of water is caused due to
• Gravity conduits for carrying water from the source are
• During treatment of water, sedimentation is done
• Percussion drilling is unsuitable in