Related Questions

The drainage water intercepting the canal can be disposed of by passing the canal below the drainage in
A aqueduct and syphon aqueduct
B aqueduct and super passage
C super passage and canal syphon
D level crossing
The method of soil conservation in which bare ground between plants is covered with layer of organic matter like straw is called?
A Mulching
B Contour barriers
C Rock dam
D Terrace farming
The shear stress between the two liquid layers is __________ proportional to the distance between two layers.
A Directly
B Inversely
C Both A and B
D None of these
A steam carraying pipeline is insulated with two layers of insulating materials with the inferior insulation material forming the inner part. If the two insulating layers are interchanged, the heat conducted will
A Increase
B Decrease
C Remain unaffected
D May increase or decrease; depends on the thickness of each layer
the wzone in the upper layers of Earth's atmosphere is beneficial, ____ animal and plant life from dangerous ultraviolet readittion
A protecting
B withdrawing
C thwarting
D displacing
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
Which functional feeding groups are involved in the process of in-stream physical breakdown of coarse material into fine particulate organic matter?
A Collector filterers
B Shredders
C Grazers
D Collector gatherers
The layers of vegetable wastes and night soil alternatively piled above the ground to form a mound, is called
A A heap
B Plateau
C Windrow
D None of these
The sewage treatment units in which anaerobic decomposition of organic matter is used, are called
A Imhoff tanks
B Trickling filters
C Sludge sedimentation tanks
D None of these
In a city , 40% of the people are illiterate and 60% are poor. Among the rich , 10% are illiterate. What percentage of the poor population is illiterate?
A 36%
B 40%
C 60%
D None of these

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