Professional Courses
Industry-relevant training in Business, Technology, and Design to help professionals and graduates upskill for real-world careers.
Categories
Interactive Games
Fun, engaging games to boost memory, math fluency, typing speed, and English skills—perfect for learners of all ages.
Typing
Memory
Math
English Adventures
Knowledge
Enroll to start learning
You’ve not yet enrolled in this course. Please enroll for free to listen to audio lessons, classroom podcasts and take practice test.
Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What does the 'Q' represent in Lacey's equations?
💡 Hint: Think about water flow in a channel.
Question 2
Easy
What is the purpose of the wetted perimeter equation?
💡 Hint: Consider how water interacts with a channel's geometry.
Practice 4 more questions and get performance evaluation
Interactive Quizzes
Engage in quick quizzes to reinforce what you've learned and check your comprehension.
Question 1
What is the primary assumption of Lacey's Theory?
- Regime channels are in full equilibrium
- Eddy suspension is the only factor
- Sediment load is irrelevant
💡 Hint: Think about the main goal of channel stability.
Question 2
True or False: The hydraulic radius is the area of flow divided by the wetted perimeter.
- True
- False
💡 Hint: Recall the formula we discussed for hydraulic radius.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Using Lacey’s velocity equation, if the flow discharge (Q_f) is 210 cumecs, calculate the mean velocity.
💡 Hint: Insert the value of Q_f into the velocity equation.
Question 2
Calculate the hydraulic radius when Q is 120 cumecs and V is previously calculated as 1.2 m/s using Lacey’s formula.
💡 Hint: Use the hydraulic radius formula and ensure you have f before attempting.
Challenge and get performance evaluation