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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TRUE or FALSE
Pitot tube is an insertion meter. When this is located at the center, the flow that will be measured will be minimum.
The coefficient of orifice meter depends on the ratio of pipe diameter to the orifice.
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Piezometer can be used to measure the pressure at a single point for a gas flowing through a pipe.
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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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- What is the rate of flow of water passing through a pipe with a diameter of 20mm and a speed of 0.5m/sec?arrow_forwardVenturimeter is a flow rate measuring device which measures exactly the quantity of fluid flowing every second in a pipe Select one: True Falsearrow_forwardIn order to measure the flow with a Venturimeter, it is installed in Horizontal line inclined line with flow upwards inclined line with flow downwards Any direction and in any location Oarrow_forward
- Pitot tube is an instrument is not used for measuring the velocity at any point in a pipe Select one: True Falsearrow_forwardany one practical example about venturimeterarrow_forwardThe velocity of the liquid flowing through the divergent portion of a Venturimeter is increases Select one: True Falsearrow_forward
- The pitot tube is used to measure the ratre of flow at the required point in a pipe Select one: True Falsearrow_forwardFor measuring flow by a venturimeter, it should be installed in O a. Vertical line O b. Inclined line with upward flow O c. Horizontal line O d. In any direction and at any locationarrow_forwardThe velocity of the liquid flowing through the divergent portion of a Venturimeter is increases Select one: True False A venturi meter is used to measure discharge Select one: True Falsearrow_forward
- When fluid flows through venturimeter there will be a pressure difference at the inlet part and throat part. Select one: True Falsearrow_forwardFactors affecting the actual flow rate of venturi meter.arrow_forwardIt is the vertical measurement from the center of the pipe to the maximum height that the water can reach when a piezometer is attached to a pipe or conduit. Velocity Head Elevation Head Pressure Head None of the abovearrow_forward
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