(3) METAL JOINING and CUTTING PROCESSES Flashcards
Q3-1
Which of the following is a function of the flux coating of a SMAW electrode?
a. insulating
b. alloying
c. deoxidation
d. shielding
e. all of the above
Q3-1
Which of the following is a function of the flux coating of a SMAW electrode?
E. all of the above
a. insulating
b. alloying
c. deoxidation
d. shielding
Q3-2
In the AWS system of SMAW electrode designations, the next to the last digit refers to:
a. impact strength
b. electrode coating
c. welding position
d. strength
e. none of the above
Q3-2
In the AWS system of SMAW electrode designations, the next to the last digit refers to:
c. welding position
Q3-3
Which of the following is an incorrect statement about a SMAW electrode designated as E7024?
a. It is a low hydrogen type.
b. The weld deposit has a minimum tensile strength of 70 000 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
Q3-3
Which of the following is an incorrect statement about a SMAW electrode designated as E7024?
a. It is a low hydrogen type.
Q3-4
Of the following which is not an essential part of a typical SMAW system?
a. constant current power supply
b. wire feeder
c. covered electrode
d. electrode lead
e. work lead
Q3-4
Of the following which is not an essential part of a typical SMAW system?
b. wire feeder
Q3-5
Which of the following welding problems is the result of a distorted magnetic field that deflects the welding arc?
a. cracks
b. short circuiting
c. arc blow
d. insufficient welding current
e. all of the above
Q3-5
Which of the following welding problems is the result of a distorted magnetic field that deflects
c. arc blow
Q3-6
Which of the following is not considered a type of metal transfer for GMAW?
a. short circuiting
b. spray
c. globular
d. droplet
e. pulsed arc
Q3-6
Which of the following is not considered a type of metal transfer for GMAW?
d. droplet
Q3-7
Which of the following types of metal transfer in GMAW provides the lowest amount of heat tothe work piece, and therefore is prone to incomplete fusion?
a. short circuiting
b. spray
c. globular
d. droplet
e. pulsed arc
Q3-7
Which of the following types of metal transfer in GMAW provides the lowest amount of heat tothe work piece, and therefore is prone to incomplete fusion?
a.short circuiting
Q3-8
Which of the following gases can be used as shielding gases for GMAW?
a. carbon dioxide
b. argon-oxygen
c. argon-carbon dioxide
d. argon
e. all of the above
Q3-8
Which of the following gases can be used as shielding gases for GMAW?
E.all of the above
a. carbon dioxide
b. argon-oxygen
c. argon-carbon dioxide
d. argon
Q3-9
What type of welding process is pictured below?
a. SMAW
b. GMAW
c. FCAW
d. SAW
e. ESW
Q3-9
What type of welding process is pictured below?
d.SAW
Q3-10
Which of the following is not considered an arc welding process?
a. SMAW
b. GMAW
c. FCAW
d. ESW
e. none of the above
Q3-10
Which of the following is not considered an arc welding process?
d.ESW
Q3-11
In the electrode designation system for FCAW, the second digit (1) in an electrode marked (E71T-5) refers to:
a. strength
b. welding position
c. chemical composition
d. usability
e. none of the above
Q3-11
In the electrode designation system for FCAW, the second digit (1) in an electrode marked (E71T-5) refers to:
b. welding position
Q3-12
Which of the following is not always an essential element of an FCAW system?
a. constant voltage power supply
b. tubular electrode
c. wire feeder
d. external shielding gas
e. work lead
Q3-12
Which of the following is not always an essential element of an FCAW system?
d. external shielding gas
Q3-13
What aspect of the GTAW and PAW processes makes them different from the other arc welding processes?
a. nonconsumable electrode
b. power supply
c. shielding
d. all of the above
e. none of the above
Q3-13
What aspect of the GTAW and PAW processes makes them different from the other arc welding processes?
a. nonconsumable electrode
Q3-14
Shielding for the GTAW and PAW processes is primarily accomplished through the use of:
a. granular flux
b. slag
c. inert gas
d. oxygen
e. none of the above
Q3-14
Shielding for the GTAW and PAW processes is primarily accomplished through the use of:
c. inert gas
Q3-15
A green stripe on a tungsten electrode designates:
a. pure tungsten
b. 1% thoriated tungsten
c. 2% thoriated tungsten
d. zirconiated tungsten
e. none of the above
Q3-15
A green stripe on a tungsten electrode designates:
a. pure tungsten