1. A notch is used to measure ............. of liquids ?

pressure

discharge

velocity

volume

Answer: discharge

Explanation:


2. The mercury does not wet the glass. This is due to the property of the liquid known as ?

cohesion

adhesion

viscosity

surface tension

Answer: surface tension

Explanation:


3. A flow through an expanding tube at constant rate is called ?

steady uniform flow

steady non-uniform flow

unsteady uniform flow

unsteady non-uniform flow

Answer: steady non-uniform flow

Explanation:


4. The pressure measured with the help of a pressure gauge is called ?

atmospheric pressure

gauge pressure

absolute pressure

mean pressure

Answer: gauge pressure

Explanation:


5. The discharge through a channel of circular section will be maximum when the depth of water is the diameter of the circular channel ?

0.34 times

0.67 times

0.81 times

0.95 times

Answer: 0.95 times

Explanation:


6. The total energy line lies over the hydraulic gradient line by an amount equal to the ?

pressure head

velocity head

pressure head + velocity head

pressure head - velocity head

Answer: velocity head

Explanation:


7. A weir, generally, used as a spillway of a dam is ?

narrow crested weir

broad crested weir

Ogee weir

submerged weir

Answer: Ogee weir

Explanation:


8. Which of the following statement is wrong ?

A flow whose streamline is represented by a curve, is called two dimensional flow

The total energy of a liquid particle is the sum of potential energy, kinetic energy and pressure energy

The length of divergent portion in a venturimeter is equal to the convergent portica

A pitot tube is used to measure the velocity of flow at the required point in a pipe

Answer: The length of divergent portion in a venturimeter is equal to the convergent portica

Explanation:


9. The discharge through a channel of rectangular section will be maximum, if ?

its depth is twice the breadth

its breadth is twice the depth

its depth is thrice the breadth

its breadth is thrice the depth

Answer: its breadth is twice the depth

Explanation:


10. The discharge through a convergent mouthpiece is ............. the discharge through an internal mouthpiece of the same diameter and head of water ?

equal to

one-half

three fourth

double

Answer: double

Explanation: