In a pipe network, if the friction factor is the same for all pipes, which statement is true regarding flow rates at junctions?

The flow rates at junctions must satisfy the continuity equation, meaning the total inflow equals total outflow.

Fill in the blank: The ______ is defined as the ratio of the actual velocity of jet of liquid at vena contracta to the theoretical velocity of jet.

Coefficient of velocity (Cv)

True or False: The flow rate through a venturimeter is equal to the theoretical discharge multiplied by the coefficient of discharge.

True.

Riddle: I change shape as I flow, but my total volume stays the same. What am I?

Fluid

What is the relationship between velocity and pressure in a venturimeter?

As the velocity increases, the pressure decreases according to Bernoulli's principle.

Which of the following statements about the coefficient of discharge (Cd) is correct? A) Cd is always greater than 1 B) Cd varies from 0.61 to 0.98 C) Cd is constant for all flow conditions D) Cd is independent of fluid properties

B) Cd varies from 0.61 to 0.98

Fill in the blank: The loss of head due to friction in a pipe is given by ______.

Darcy-Weisbach equation

True or False: The maximum power transmission efficiency through a pipeline is 50%.

False. The maximum power transmission efficiency is 67%.

What does the term 'equivalent length' refer to in the context of pipe fittings?

It is the length of an unobstructed straight pipe that would produce the same loss of head as the fitting.

Riddle: I’m a measure of resistance in flow, related to roughness and flow's speed, what am I?

Friction factor (f)

In a flow through a pipe, if the diameter increases suddenly, what happens to the velocity and pressure?

Velocity decreases and pressure increases due to conservation of energy.

Fill in the blank: The pressure difference in a manometer indicates the ______ in the pipe.

Pressure drop

True or False: The hydraulic radius for a circular pipe is simply the radius of the pipe.

False. The hydraulic radius is defined as the cross-sectional area divided by the wetted perimeter.

Which equation is used to calculate the discharge through an orifice meter?

Q = Cd * A * sqrt(2gH), where H is the head and A is the area of the orifice.

Riddle: I measure flow with a contraction in my path, my readings depend on pressure’s aftermath. What am I?

Venturimeter