Related Questions

If the flame of a miner's safety lamp in the upper layers of the sewer forms an explosive, the sewer certainly contains
A Hydrogen sulphide
B Carbon dioxide
C Methane
D Oxygen
Drop manholes at the junctions of sewer lines, are provided if
A Invert level of a branch sewer is more than 60 cm that of the main sewer
B Sewer line runs along a main road
C Ordinary manhole cannot be built
D Two sewer lines intersect
The arrangement made for passing the sewer line below an obstruction below the hydraulic gradient lines called
A Inverted syphon
B Depressed sewer
C Sag pipe
D all of these
Stream lines and path lines always coincide in case of
A steady flow
B laminar flow
C uniform flow
D turbulent flow
In R.C. sewer pipes, the percentage longitudinal reinforcement to the cross-sectional area of concrete is kept
A 10.0
B 5.0
C 2.0
D 0.25
The slope of sewer shall be
A Given in the direction of natural slope of ground
B Given in the direction opposite to natural slope of ground
C Zero
D Steeper than 1 in 20
The means of access for inspection and cleaning of sewer line is known as
A Inlet
B Manhole
C Drop manhole
D Catch basin
An egg shaped section of sewer
A Is economical than circular section
B Provides self cleansing velocity at low discharges
C Is more stable than circular section
D Is easy to construct
Most suitable section of sewer in separate sewage system is
A Rectangular section
B Circular section
C Standard form of egg shaped sewer
D Modified egg shaped section
A sewer that receives the discharge of a number of house sewers is called
A House sewer
B Lateral sewer
C Intercepting sewer
D Sub-main sewer

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