If the flame of a miner's safety lamp in the upper layers of the sewer forms an explosive, the sewer certainly contains

Related MCQs

• If the flame of a miner's safety lamp in a manhole extinguishes within 5 minutes, the sewer certainly contains
• The spacing of man holes along a straight portion of a sewer is 300 m, the diameter of the sewer may be
• If “D” is the diameter of upper circular portion, the overall depth of New Egg shaped sewer section, is
• If ‘D’ is the diameter of upper circular portion, the overall depth of New Egg shaped sewer section, is
• For efficient working of a sewer, it must be ensured that
• The sewer pipes
• To prevent settling down of sewage both at the bottom and on the sides of a large sewer, selfcleaning velocity recommended for Indian conditions, is
• If the depth of flow in a circular sewer is 1/4th of its diameter D, the wetted perimeter is
• The sewer which received discharge from two or more main sewers, is known as
• The sewer which resists sulphide corrosion, is