189) The hydraulic gradient line is always parallel to the centre line of the pipe.

Correct

Incorrect

Answer is:

Incorrect

Hydraulics and fluid mechanics MCQ with Answers

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Related Hydraulics and fluid mechanics MCQ with Answers

190) Barometer is used to measure

velocity of liquid

atmospheric pressure

pressure in pipes and channels

difference of pressure between two points in a pipe

Answer is:

atmospheric pressure

Explanation:

Atmospheric pressure: The atmospheric air exerts a normal pressure upon all surfaces with which it is in contact and it is known as atmospheric pressure. Atmospheric pressure is also known as barometric pressure. Barometer is used to measure atmospheric pressure.