In welding, the following is used to prevent oxidation off molten metal Filler material Flux Coating...
In welding, the following is used to prevent oxidation off molten metal
- Filler material
- Flux
- Coating
- All of the above
Homework Answers
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In welding, the following is used to prevent oxidation
off molten metal
Filler material
Flux
Coating...
Task 2: Tools and Coding Question 1: Clearly state whether the following statements are True or...
Task 2: Tools and Coding Question 1: Clearly state whether the following statements are True or False a. In lathe operation, the process of cutting off the finished part is called Facing [TRUE/FALSE) b. A Positive rake angle is used for long slender, thin walled soft steels. [TRUE/FALSE] c. The machining Process of Producing threaded holes is called Tapping [TRUE/FALSE] d. Filler material acts as shield on weld zone to prevent oxidation [TRUE/FALSE] e. Metal inert Gas welding is one...
Exothermic welding is a chemically driven process for producing molten metal. One of the oldest forms of welding, it is...
Exothermic welding is a chemically driven process for producing molten metal. One of the oldest forms of welding, it is still used for joining train lines. A mixture of iron (III) oxide (Fe203) and aluminium (Al) is employed, which upon activation undergoes the following chemical reaction Fe203(s) 2 Al(s) Al2O3(s) + 2 Fe(s) (a) (3 marks) Using the thermodynamic data provided, calculate the heat released by this process (b) (5 marks) Estimate the final temperature of the mixture, stating any...
6. To have a successful coating are: a) good choice for coating material. b) good coating...
6. To have a successful coating are: a) good choice for coating material. b) good coating technique. c) good surface preparation or good cleaning. d) all of the above 7. Coating layer must be a) Active or passive with environment. b) inert or non- passive with environment. c) inert or passive with environment. d) both a and b. 8. pH of normal sea water is a) 4.0. b) 7.0 c) less than 7.0. d) more than 7.0. 9. Good set-up...
Please answer the question neatly and clearly. Be as detailed as possible. Show examples if necessary. ...
Please answer the question neatly and clearly.
Be as detailed as possible. Show examples if
necessary.
Dumb everything down.
Include visuals as well*
Which of the following is NOT a method of applying flux? O pouring granular flux onto the joint melting stick electrode flux coating during the operation o deliver flux to the joint via a tube O All of the above are methods of applying flux Which is NOT a benefit of using flux in welding? O Provides...
Welding Problem A gas tungsten arc welding operation is used to create a fillet weld on both side...
Welding Problem A gas tungsten arc welding operation is used to create a fillet weld on both sides of a T-joint between two 1" thick medium carbon steel plates. The length of the T-joint is 36". The fillet weld as has a" legs. The welding operation will be carried out at a current 300 amps and a voltage of 20V. The welding process melts a volume of the parent material that is equal to 30% of the volume of the...
Question 2: Clearly answer the following 1. What is Cutter radius compensation? Which code cancels cutter...
Question 2: Clearly answer the following 1. What is Cutter radius compensation? Which code cancels cutter compensation? 2. What do you mean by Tool Length compensation? Why it's important while performing CNC operations (Choose the correct answer. Each Question carries 4 points) 1. The Process of finishing and sizing operation performed on a drilled or bored hole using a multipoint cutting tool called a. Threading b. Reaming c. Tapping d. Boring c. None of the above 2.In Fanuc CNC Programming,...
1) Turbulence during pouring of the molten metal is undesirable since (two best answers): a) it...
1) Turbulence during pouring of the molten metal is undesirable since (two best answers): a) it causes discoloration of the mold surfaces, b) it dissolves the binder used to hold together the sand mold, c) it increases erosion of the mold surfaces, d) it increases the formation of metallic oxides that can become entrapped during solidification, e) it increases the mold filling time, and f) it increases total solidification time 2) Total solidification time is defined as a) time between...
Which of the following chemical species will undergo an oxidation-reduction reaction with iron metal, Fe(s)? (Please...
Which of the following chemical species will undergo an
oxidation-reduction reaction with iron metal, Fe(s)?
(Please show all works and explanations)
12. Which of the following chemical species will undergo an oxidation-reduction reaction with iron metal, Fe (s)? A) platinum, Pt (s) B) zinc bromide, ZnBr2 (a C) auric chloride, AuCl3 (aq) D) silver, Ag (s)
CODE 102_8 Welding Many welding processes require the application of heat and/or pressure to produce a...
CODE 102_8 Welding Many welding processes require the application of heat and/or pressure to produce a suitable bond between the two parts being joined. There are a number of conventional and commercially practiced welding processes, which possess limitations in relation to material type and thickness, and in addition, the cost analysis may not allow for a process to be used on a specific application. The selection of suitable welding consumable (electrode or wire) is also an important factor in producing...
(5) - The following reaction is the thermite reaction used in underwater (and space) welding: 8Al)...
(5) - The following reaction is the thermite reaction used in underwater (and space) welding: 8Al) + Fe, 036) - Al,031 + 2Fe + 202.8 kcal/mol i) How many kilocalories of heat are generated when 30.0 g of Al are reacted completely in the above thermite reaction? ii) If you need 1.00x109 kcal of heat, how many grams of Al and Fe2O, are needed?
Task 2: Tools and Coding Question 1: Clearly state whether the following statements are True or False a. In lathe operation, the process of cutting off the finished part is called Facing [TRUE/FALSE) b. A Positive rake angle is used for long slender, thin walled soft steels. [TRUE/FALSE] c. The machining Process of Producing threaded holes is called Tapping [TRUE/FALSE] d. Filler material acts as shield on weld zone to prevent oxidation [TRUE/FALSE] e. Metal inert Gas welding is one...
Exothermic welding is a chemically driven process for producing molten metal. One of the oldest forms of welding, it is still used for joining train lines. A mixture of iron (III) oxide (Fe203) and aluminium (Al) is employed, which upon activation undergoes the following chemical reaction Fe203(s) 2 Al(s) Al2O3(s) + 2 Fe(s) (a) (3 marks) Using the thermodynamic data provided, calculate the heat released by this process (b) (5 marks) Estimate the final temperature of the mixture, stating any...
6. To have a successful coating are: a) good choice for coating material. b) good coating technique. c) good surface preparation or good cleaning. d) all of the above 7. Coating layer must be a) Active or passive with environment. b) inert or non- passive with environment. c) inert or passive with environment. d) both a and b. 8. pH of normal sea water is a) 4.0. b) 7.0 c) less than 7.0. d) more than 7.0. 9. Good set-up...
Please answer the question neatly and clearly.
Be as detailed as possible. Show examples if
necessary.
Dumb everything down.
Include visuals as well*
Which of the following is NOT a method of applying flux? O pouring granular flux onto the joint melting stick electrode flux coating during the operation o deliver flux to the joint via a tube O All of the above are methods of applying flux Which is NOT a benefit of using flux in welding? O Provides...
Welding Problem A gas tungsten arc welding operation is used to create a fillet weld on both sides of a T-joint between two 1" thick medium carbon steel plates. The length of the T-joint is 36". The fillet weld as has a" legs. The welding operation will be carried out at a current 300 amps and a voltage of 20V. The welding process melts a volume of the parent material that is equal to 30% of the volume of the...
Question 2: Clearly answer the following 1. What is Cutter radius compensation? Which code cancels cutter compensation? 2. What do you mean by Tool Length compensation? Why it's important while performing CNC operations (Choose the correct answer. Each Question carries 4 points) 1. The Process of finishing and sizing operation performed on a drilled or bored hole using a multipoint cutting tool called a. Threading b. Reaming c. Tapping d. Boring c. None of the above 2.In Fanuc CNC Programming,...
Which of the following chemical species will undergo an
oxidation-reduction reaction with iron metal, Fe(s)?
(Please show all works and explanations)
12. Which of the following chemical species will undergo an oxidation-reduction reaction with iron metal, Fe (s)? A) platinum, Pt (s) B) zinc bromide, ZnBr2 (a C) auric chloride, AuCl3 (aq) D) silver, Ag (s)
CODE 102_8 Welding Many welding processes require the application of heat and/or pressure to produce a suitable bond between the two parts being joined. There are a number of conventional and commercially practiced welding processes, which possess limitations in relation to material type and thickness, and in addition, the cost analysis may not allow for a process to be used on a specific application. The selection of suitable welding consumable (electrode or wire) is also an important factor in producing...
(5) - The following reaction is the thermite reaction used in underwater (and space) welding: 8Al) + Fe, 036) - Al,031 + 2Fe + 202.8 kcal/mol i) How many kilocalories of heat are generated when 30.0 g of Al are reacted completely in the above thermite reaction? ii) If you need 1.00x109 kcal of heat, how many grams of Al and Fe2O, are needed?
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