# Statement (I): The best hydraulic section always has the minimum excavation. Statement (II): The best hydraulic section gives the minimum area for a given discharge.

1.  Both Statement (I) and Statement (II) are individually true and Statement (II) is the correct explanation of Statement (I)

2.  Both Statement (I) and Statement (II) are individually true but Statement (II) is not the correct explanation of Statement (I)

3.  Statement (I) is true but Statement (II) is false

4.  Statement (I) is false but Statement (II) is true

4

Statement (I) is true but Statement (II) is false

Explanation :
No Explanation available for this question

# Statement (I): A given channel may be classifiable as mild for one discharge, critical for another discharge, and steep for yet another discharge. Statement (II): Normal depth and critical depth are independent functions of the discharge along with, or without, other appropriate parameters.

1.  Both Statement (I) and Statement (II) are individually true and Statement (II) is the correct explanation of Statement (I)

2.  Both Statement (I) and Statement (II) are individually true but Statement (II) is not the correct explanation of Statement (I)

3.  Statement (I) is true but Statement (II) is false

4.  Statement (I) is false but Statement (II) is true

4

Both Statement (I) and Statement (II) are individually true and Statement (II) is the correct explanation of Statement (I)

Explanation :
No Explanation available for this question

# Statement (I): For a hydraulic ram, D’Aubuisson’s efficiency is always more than Rankine’s efficiency. Statement (II): By definition, efficiency is always less than unity in any system of machines; and addition of a small value to both numerator and denominator in the ratio of such a case always improves the value.

1.  Both Statement (I) and Statement (II) are individually true and Statement (II) is the correct explanation of Statement (I)

2.  Both Statement (I) and Statement (II) are individually true but Statement (II) is not the correct explanation of Statement (I)

3.  Statement (I) is true but Statement (II) is false

4.  Statement (I) is false but Statement (II) is true

4

Both Statement (I) and Statement (II) are individually true and Statement (II) is the correct explanation of Statement (I)

Explanation :
No Explanation available for this question

# Statement (I): Air pollutant concentration and time of retention increase due to inversion. Statement (II): During winter, the heavy cold layer in the atmosphere retains the hot toxic pollutants for a longer period in the atmosphere.

1.  Both Statement (I) and Statement (II) are individually true and Statement (II) is the correct explanation of Statement (I)

2.  Both Statement (I) and Statement (II) are individually true but Statement (II) is not the correct explanation of Statement (I)

3.  Statement (I) is true but Statement (II) is false

4.  Statement (I) is false but Statement (II) is true

4

Both Statement (I) and Statement (II) are individually true and Statement (II) is the correct explanation of Statement (I)

Explanation :
No Explanation available for this question

# Statement (I): Chlorides are added to kill pathogens as a disinfection process in the treatment of water. Statement (II): It forms hypochlorous acid to oxidize the organic compounds including bacteria.

1.  Both Statement (I) and Statement (II) are individually true and Statement (II) is the correct explanation of Statement (I)

2.  Both Statement (I) and Statement (II) are individually true but Statement (II) is not the correct explanation of Statement (I)

3.  Statement (I) is true but Statement (II) is false

4.  Statement (I) is false but Statement (II) is true

4

Statement (I) is false but Statement (II) is true

Explanation :
No Explanation available for this question

# Statement (I): When a tube well penetrates into a homogeneous aquifer and is then pumped, there will occur lowering of water surface. The resultant surface is designated as ‘Drawdown curve’. Statement (II): Since the pressure on the surface of the ‘Drawdown curve’ is always at atmospheric level, it is called by this name.

1.  Both Statement (I) and Statement (II) are individually true and Statement (II) is the correct explanation of Statement (I)

2.  Both Statement (I) and Statement (II) are individually true but Statement (II) is not the correct explanation of Statement (I)

3.  Statement (I) is true but Statement (II) is false

4.  Statement (I) is false but Statement (II) is true

4

Both Statement (I) and Statement (II) are individually true but Statement (II) is not the correct explanation of Statement (I)

Explanation :
No Explanation available for this question

# Statement (I): Fluoride concentrations of approximately 1.0 mg/l in drinking water help to prevent dental cavities in children. Statement (II): During formation of permanent teeth, fluoride combines chemically with tooth enamel resulting in softer and weaker teeth that are less resistance to decay.

1.  Both Statement (I) and Statement (II) are individually true and Statement (II) is the correct explanation of Statement (I)

2.  Both Statement (I) and Statement (II) are individually true but Statement (II) is not the correct explanation of Statement (I)

3.  Statement (I) is true but Statement (II) is false

4.  Statement (I) is false but Statement (II) is true

4

Statement (I) is true but Statement (II) is false

Explanation :
No Explanation available for this question

# Statement (I): Virus is living organisms in a natural environment including soil. Statement (II): Virus comes to life after entering the host tissue through contamination.

1.  Both Statement (I) and Statement (II) are individually true and Statement (II) is the correct explanation of Statement (I)

2.  Both Statement (I) and Statement (II) are individually true but Statement (II) is not the correct explanation of Statement (I)

3.  Statement (I) is true but Statement (II) is false

4.  Statement (I) is false but Statement (II) is true

4

Statement (I) is false but Statement (II) is true

Explanation :
No Explanation available for this question

# Statement (I): The BOD test is conducted for 5 days at 200C. Statement (II): The amount of oxygen utilized by microorganisms anaerobically is called BOD.

1.  Both Statement (I) and Statement (II) are individually true and Statement (II) is the correct explanation of Statement (I)

2.  Both Statement (I) and Statement (II) are individually true but Statement (II) is not the correct explanation of Statement (I)

3.  Statement (I) is true but Statement (II) is false

4.  Statement (I) is false but Statement (II) is true

4

Statement (I) is true but Statement (II) is false

Explanation :
No Explanation available for this question

# Statement (I): An epidemic of infection is hepatitis is transmitted by drinking contaminated water. Statement (II): Since infective hepatitis is transmitted by bacteria, it can be controlled by filtration and disinfection of water.

1.  Both Statement (I) and Statement (II) are individually true and Statement (II) is the correct explanation of Statement (I)

2.  Both Statement (I) and Statement (II) are individually true but Statement (II) is not the correct explanation of Statement (I)

3.  Statement (I) is true but Statement (II) is false

4.  Statement (I) is false but Statement (II) is true

4