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1) Which location has positive, negative, zero pressure? a) 3, 1, 2 b) 2, 1, 3 c) 2, 1, 3 d) 2, 3, 1 2) In parallel pipe, the volume flow rate is the same in each pipe. True or False

1) Which location has positive, negative, zero pressure? a) 3, 1, 2 b) 2, 1, 3 c) 2, 1, 3 d) 2, 3, 1 2) In parallel pipe, the volume flow rate is the same in each pipe. True or False

Structural Analysis
Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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1) Which location has positive, negative, zero pressure?

a)

3, 1, 2
b)

2, 1, 3
c)

2, 1, 3
d)

2, 3, 1

2) In parallel pipe, the volume flow rate is the same in each pipe. True or False

The image illustrates a fluid dynamic system involving a siphon or pipe system and a Hydraulic Grade Line (HGL). Here's a detailed explanation of the elements in the diagram: 1. **Tank**: The system begins with a tank filled with fluid on the left side. The fluid level is denoted by a horizontal line at the tank’s top. 2. **Pipe System**: The pipeline is depicted bending over an obstacle. The flow path is marked, beginning inside the tank and continuing over the high point (1), down the slope (2), and exiting (3). 3. **Hydraulic Grade Line (HGL)**: The red dashed line represents the HGL. This line indicates the energy level of the fluid along the pipeline. It represents the sum of the elevation head and pressure head at any given point in the system. 4. **Pipeline Segments**: - **Segment 1**: Ascending section of the pipe where elevation increases. The HGL typically slopes downward due to energy losses from elevation gain and friction. - **Segment 2**: The highest point in the system. The HGL at this point helps determine if there's enough energy for the fluid to reach this level. - **Segment 3**: Descending section where fluid is moved by gravity. The HGL may rise or maintain a slope depending on pressure and velocity changes. This diagram is essential in understanding fluid flow in closed systems and the energy considerations involving pressure, gravity, and friction. The HGL is a valuable tool for visualizing and analyzing these energy exchanges.
Transcribed Image Text:The image illustrates a fluid dynamic system involving a siphon or pipe system and a Hydraulic Grade Line (HGL). Here's a detailed explanation of the elements in the diagram: 1. **Tank**: The system begins with a tank filled with fluid on the left side. The fluid level is denoted by a horizontal line at the tank’s top. 2. **Pipe System**: The pipeline is depicted bending over an obstacle. The flow path is marked, beginning inside the tank and continuing over the high point (1), down the slope (2), and exiting (3). 3. **Hydraulic Grade Line (HGL)**: The red dashed line represents the HGL. This line indicates the energy level of the fluid along the pipeline. It represents the sum of the elevation head and pressure head at any given point in the system. 4. **Pipeline Segments**: - **Segment 1**: Ascending section of the pipe where elevation increases. The HGL typically slopes downward due to energy losses from elevation gain and friction. - **Segment 2**: The highest point in the system. The HGL at this point helps determine if there's enough energy for the fluid to reach this level. - **Segment 3**: Descending section where fluid is moved by gravity. The HGL may rise or maintain a slope depending on pressure and velocity changes. This diagram is essential in understanding fluid flow in closed systems and the energy considerations involving pressure, gravity, and friction. The HGL is a valuable tool for visualizing and analyzing these energy exchanges.
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