Welding: Principles and Applications (MindTap Course List)
8th Edition
ISBN: 9781305494695
Author: Larry Jeffus
Publisher: Cengage Learning
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Textbook Question
Chapter 16, Problem 21R
Why must the tube of a flow meter be vertical?
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Write down the operating principle of Venturi meter.
TRUE or FALSE
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1. Which of the following is used to increase flow velocity from a pipe?Group of answer choices
Venturimeter
Orifice
Nozzle
Pitot tube
2. Which of the following is normally used for very large discharge flow measurements?Group of answer choices
Nozzle
Orifice
Venturimeter
Pitot tube
Chapter 16 Solutions
Welding: Principles and Applications (MindTap Course List)
Ch. 16 - What early advancements made the GTA welding...Ch. 16 - What metals were weldable only by the GTAW process...Ch. 16 - Which two of tungsten's properties make it the...Ch. 16 - Why must the tip of the tungsten be hot?Ch. 16 - Prob. 5RCh. 16 - What functions regarding tungsten heat do the...Ch. 16 - What problem can an excessively large tungsten...Ch. 16 - What holds the molten ball of tungsten in place at...Ch. 16 - Using Table 15-1, answer the following: a. What...Ch. 16 - What does adding thorium oxide do for the tungsten...
Ch. 16 - How can the end of a tungsten electrode be shaped?Ch. 16 - Why should a grinding stone that is used for...Ch. 16 - Why should the grinding marks run lengthwise on...Ch. 16 - What are three ways of breaking off the...Ch. 16 - What is the correct color to use on the balled end...Ch. 16 - Why should the torch be as cool as possible?Ch. 16 - What will happen to a water-cooled torch cable if...Ch. 16 - Why must shielding gas hoses not be made from...Ch. 16 - What materials can be used to make nozzles?Ch. 16 - What problem can a long nozzle cause to the...Ch. 16 - Why must the tube of a flow meter be vertical?Ch. 16 - What is the heat distribution with DCEN welding...Ch. 16 - What is the heat distribution with DCEP welding...Ch. 16 - What is the heat distribution with AC welding...Ch. 16 - Why must AC welding power use high frequencies to...Ch. 16 - Why are argon and helium known as inert gases?Ch. 16 - Why is argon's ease of ionization a benefit?Ch. 16 - What makes helium difficult to use for manual...Ch. 16 - What are the benefits of adding hydrogen to argon...Ch. 16 - What is the purpose of a hot start?Ch. 16 - Using Table 16-3, determine the gas post flow time...Ch. 16 - What functions can a remote control provide the...Ch. 16 - Using Table 16-4, determine the minimum gas flow...
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, mechanical-engineering and related others by exploring similar questions and additional content below.Similar questions
- Pitot tube is a flow rate measuring device which measures exactly the quantity of fluid flowing every second in a pipe. Select one: True Falsearrow_forwardFor a pipe flow measurement, the most precise and most expensive obstruction flow meter? a)Orifice meter b)Venturi meter c)Nozzle meter d)Rotameter e)variable area meterarrow_forwardAll volumetric flow meters that are subjected to high head pressure should be protected by what type of valve?arrow_forward
- Question - You must discuss in detail the way in which the pitot tube and nozzle flow meter are used to calculate velocity or volume flow rate. Write the velocity (or flow rate) equations for both and a detailed description of the what you did.arrow_forwardThe venturimeter can measure volume flow rate in a flow channel Select one: True Falsearrow_forwardTrue or False. Frome Poiseuille's law, in order to maintain a constant flow rate, the pressure difference across a tube has to decrease when the viscosity of the fluid increases.arrow_forward
- What is the unit of flow rate?arrow_forwardA venturi meter is to be installed in a schedule 40, 6-inch line to measure the flow of water. The maximum rate is expected to be 800 gpm at 86°F. A 50-inHg manometer is to be used. Specify the throat diameter of the venturi. The discharge cone angle is 5°.A. 2.38 inB. 2.98 inC. 3.40 inD. 4.50 inarrow_forwardPiezometer can be used to measure the pressure at a single point for a gas flowing through a pipe. (True/Falsearrow_forward
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