BECE3063 ENG HYDARULICS WEEK 1 AND 2

Oliver is studying fluid dynamics and comes across a concept defined as a duct through which liquid flows with a free surface. What is this concept called?

• Pressure Channel

• Gravity Channel

• Closed Channel

• Open Channel

In which type of flow do all characteristics remain constant over time?

• Unsteady Flow

• Variable Flow

• Steady Flow

• Transitional Flow

What is the term for the vertical distance between the highest water level and the top of the retaining banks?

• Hydraulic Radius

• Side Slope

• Freeboard

• Wetted Perimeter

Which formula is most widely used for estimating normal flow velocities?

• Darcy-Weisbach Equation

• Manning Formula

• Bernoulli's Equation

• Chezy Formula

What is the hydraulic mean depth (R) defined as?

• Depth divided by Width

• Wetted Perimeter divided by Area

• Width divided by Depth

• Area divided by Wetted Perimeter

For a trapezoidal channel, what is the formula for the area of cross-section (A)?

• A = b d + Z d^2

• A = b + 2d

• A = b d^2 + Z

• A = 2b + d

What is the maximum permissible velocity for different earth materials used in channel design?

• It is always less than 1 m/s

• It is determined by channel width

• It varies based on material type

• It is constant for all materials

What does the term 'Z' represent in channel design?

• Side Slope

• Depth of the channel

• Flow Rate

• Width of the channel

What is the primary purpose of designing channels for irrigation?

• To maximize water flow

• To minimize evaporation

• To convey water efficiently

• To prevent flooding

In the context of channel design, what does 'd' represent?

• Width of the channel

• Wetted Perimeter

• Flow rate

• Depth of the channel