W.I.T. Chapter 3: welding and cutting processes

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CHAPTER 3
Kelan Baptiste
Quiz por Kelan Baptiste, atualizado more than 1 year ago
Kelan Baptiste
Criado por Kelan Baptiste aproximadamente 6 anos atrás
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Resumo de Recurso

Questão 1

Questão
1) which of the following is a function of the flux coating of a smaw electrode
Responda
  • a. Insulating
  • b. Alloying
  • C. Deoxidation
  • d. Shielding
  • e. All of the above

Questão 2

Questão
2) In the AWS system of smaw electrode designations the next to the last digit refers to
Responda
  • a. Impact strength
  • b. Electronic coating
  • C, Welding position
  • d. Strength
  • e. None of the above

Questão 3

Questão
3) which of the following is an incorrect statement about a smaw electrode designation as E 7024
Responda
  • a. It is low hydrogen type
  • b. The well deposit has a minimum tensile strength of 70000 PSI
  • C. It is suitable for use in the flat and horizontal fillet positions only
  • d. It is an electrode for welding carbon steel
  • e. None of the above

Questão 4

Questão
4. Of the following which is not an essential part of a typical smaw system
Responda
  • a. Constant current power supply
  • b. Wire feeder
  • C, Covered electrode
  • d. Electrode lead
  • e. Work lead

Questão 5

Questão
5. Which of the following welding problem is the result of a distorted magnetic field that deflects the welding Arc
Responda
  • a. Cracks
  • b. Wire feeder
  • c Arc blow
  • d. Insufficient welding current
  • e, all of the above

Questão 6

Questão
6) which of the following is not considered a type of metal transfer for gmaw
Responda
  • a. Short circuiting
  • b. Spray
  • C. Globular
  • d. Droplet
  • e. Pulsed arc

Questão 7

Questão
7) which of the following types of metal transfer in gmaw provides the lowest amount of heat to the work piece and is therefore prone to an incomplete Fusion
Responda
  • a. Short circuiting
  • b. Spray
  • C, globular
  • d. Droplet
  • e. Pulsed arc

Questão 8

Questão
8) which of the following gases can be used as a shielding gases for gmaw
Responda
  • a. Carbon dioxide
  • b. Argon oxygen
  • C. Argon carbon dioxide
  • d. Argon
  • e, all of the above

Questão 9

Questão
9) what type of welding process is pictured
Responda
  • a. Smaw
  • b. Gmaw
  • C, fcaw
  • d. Saw
  • e, esw

Questão 10

Questão
10) which of the following is not considered an arc welding process
Responda
  • a. Smaw
  • b. Gmaw
  • C, fcaw
  • d. Esw
  • e. None of the above

Questão 11

Questão
11) in the electrode designations system for fcaw the second digit (1) in an electrode Marked (E 71T -5 ) refers to
Responda
  • a. Strength
  • b. Welding position
  • C. Chemical composition
  • d. Usability
  • e. None of the above

Questão 12

Questão
12) which of the following is not always an essential element of an fcaw system
Responda
  • a. Constant voltage power supply
  • b. Tubular electrode
  • c. Wire feeder
  • d. External shielding gas
  • e. Work lead

Questão 13

Questão
13) what aspect of the gtaw and the Paw processes makes them different from the other arc welding processes
Responda
  • a. Non-consumable electrode
  • b. Power supply
  • c. Shielding
  • d. All of the above

Questão 14

Questão
14) shielding for the gtaw and the Paw processes is primarily accomplished through the use of
Responda
  • a. Granular flux
  • b. Slag
  • C. Inert gas
  • d. Oxygen
  • e. None of the above

Questão 15

Questão
15) a green stripe on a tungsten electrode designates
Responda
  • a. Pure tungsten
  • b. 1% thoriated tungsten
  • c, 2% thoriated tungsten
  • d. Zirconiated tungsten
  • e. None of the above

Questão 16

Questão
16) when welding aluminium with the gtaw process what type of welding current is most commonly used
Responda
  • a. Dcep
  • b. Dcen
  • C. AC
  • d.A & B above
  • e.A and C above

Questão 17

Questão
17) Saw and esw processes are similar in that
Responda
  • a. Both are an arc welding process
  • b. Both use shielding gases
  • C. Both use a granular flux which becomes Molten
  • d. A & B above
  • e. A and c above

Questão 18

Questão
18) the diagram depicts What welding process
Responda
  • a. Smaw
  • b. Esw
  • c. Fcaw
  • d. S AW
  • e.GMAW

Questão 19

Questão
19) solidification cracking due to improper width to depth ratio of the weld bead is a serious problem primarily with which welding process
Responda
  • a. Smaw
  • b. Ofc
  • c SAW
  • d. All of the above
  • e, None of the above

Questão 20

Questão
20) which one of the following processes is typically used in the flat position unless special apparatus is employed
Responda
  • a. Gmaw
  • b. S aw
  • c. Fcaw
  • d. Smaw
  • e. Gtaw

Questão 21

Questão
21) which of the following are not common to both gtaw and p a w
Responda
  • a. Non-consumable tungsten electrode
  • b. Constricting orifice
  • C. Shielding gas nozzle
  • d. Externally applied filler metal
  • e. None of the above

Questão 22

Questão
22) what technique is employed with Paw to produce full penetration weld without Edge preparation
Responda
  • a. Stringer beads
  • b. Weave beads
  • C, Keyhole
  • d. Backstep
  • e. None of the above

Questão 23

Questão
23) What welding process produces weld in a single pass with the progression uphill along the joint
Responda
  • a. Saw
  • b. Esw
  • C, fcaw
  • d.A and B above
  • e.B and c above

Questão 24

Questão
24. Which of the following is not an advantage of the esw process
Responda
  • A. High deposition rate
  • B. Ease of setup
  • C. Capable of joining thick sections
  • D. New tendency of angular distortion
  • E. None of the above

Questão 25

Questão
25. Which welding process is considered to be a chemical welding process
Responda
  • A. SMAW
  • B. ESW
  • C. SAW
  • D. OAW
  • E. None of the above

Questão 26

Questão
26. Which arc welding process provides a very efficient means of joining attachments to some planar surfaces
Responda
  • A. OAW
  • B. SW
  • C. GMAW
  • D. GTAW
  • E. SMAW

Questão 27

Questão
27. Brazing differs from welding in that
Responda
  • A. No filler metal is used
  • B. An oxy fuel flame is used
  • C. The base metal is not melted
  • D. All of the above
  • E. None of the above

Questão 28

Questão
28. For satisfactory results a braze joint should have
Responda
  • A. Clean joint surfaces
  • B. A small clearance between pieces to be joined
  • C. A large surface area for the joint area
  • D. Heat source
  • E. All of the above

Questão 29

Questão
29. Which of the following is an advantage of brazing
Responda
  • A. Ease of joining thick sections
  • B. Ability to join dissimilar metals
  • C. Ability to join thin sections
  • D. A and B
  • E. B and C

Questão 30

Questão
30. Of the following Metals which cannot be efficiently cut using ofc
Responda
  • A. High carbon steel
  • B. Low carbon steel
  • C. Medium carbon steel
  • D. Austenitic stainless steel
  • E. None of the above

Questão 31

Questão
31. Which of the following gases can be used to perform ofc
Responda
  • A. Methyl acetylene propadiene (MPS)
  • B. Propane
  • C. Acetylene
  • D. Methane (Natural Gas)
  • E. All of the above

Questão 32

Questão
32. Which of the following cutting processes can cut any metal
Responda
  • A. OFC
  • B. CAC-A
  • C. PAC
  • D. A and B
  • E. B and C

Questão 33

Questão
33. The width of a cut is referred to as the
Responda
  • A. Gap
  • B. Dross
  • C. Kerf
  • D. Drag
  • E. None of the above

Questão 34

Questão
34. The smaw power source can be
Responda
  • A. DECN
  • B. AC
  • C. DECP
  • D. All of the above
  • E. A and C

Questão 35

Questão
35. Of the following which is a non-contact welding process requires no electrodes and is not influenced by the presence of magnetic fields
Responda
  • A. ESW
  • B. PAW
  • C. LBW
  • D. A and B
  • E. None of the above

Questão 36

Questão
36. Which of the following uses a focused beam of electrons as a heat source for Fusion welding
Responda
  • A. EBW
  • B. ESW
  • C. EGW
  • D. A and C
  • E. None of the above

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