Submerged Arc Welding MCQ ITI &CTI

Welding MCQ, Submerged Arc Welding MCQ, Submerged Welding MCQ, Submerged Arc Welding MCQ ITI &CTI

1. Which one of the following welding processes requires bare metal electrode & granular flux?

a) MIG welding
b) TIG welding
c) Submerged arc welding
d) Stud welding

2. On which of the following welding processes the arc is not visible to the welder

a) MIG
b) SMAW
c) GMAW
d) SAW

3. In a particular type of welding, flux is prepared in the form of a coarse powder and
granulated flux is spread over the joint. What is this type of welding process called?

a) Electric arc welding
b) Submerged arc welding
c) MIG welding
d) TIG welding

4. What is the function of the flux hopper in the submerged arc welding machine?

a) To deliver gas to the weld area
b) To store the flux & controls the rate of flux deposition
c) To control the current flow
d) To hold the electrode in the correct position
5. Which operating variable in submerge arc welding controls the arc length?
a) Welding speed
b) Welding voltage
c) Welding current
d) Electrode wire extension

6. Which of the following operating variables is to be controlled to avoid more flux
consumption in submerged arc welding?

a) Welding speed
b) Welding voltage
c) Welding current
d) Electrode wire extension

7. What defect generally occurs in submerged arc welding while welding with a very high current?

a) Blowholes
b) Undercut
c) Slag inclusion
d) Lack of fusion

8. If submerged welding to be used to make butt welds, which would you be most critical
of:

a) The root gap tolerance
b) The angle of penetration
c) The root face width
d) The gas cut finish

9. In submerged arc welding, excessive arc voltage may cause?

a) Excessive penetration
b) Change in weld metal composition
c) Narrow weld width
d) Excessive bead profile

10. In SAW which is directly proportional to the welding voltage?

a) Weld size
b) Bead width
c) Welding speed
d) Bead penetration
11. Which statement is true for submerged arc welding?
a) Welding is done in a vacuum
b) Less metal deposition rate
c) Bare wire electrode is used
d) Welding can be done in all positions

12. One of the advantages of the submerged arc welding process is…

a) High deposition rate & speed
b) The joint will be totally defect-free
c) Thin sheets can also be welded
d) Welding of non-ferrous metals can also be done

13. Which one of the following basic joints is not recommended to weld by submerged arc
welding process?

a) Outside corner joint
b) Butt joint
c) Lap joint
d) T-joint

14. Flux used in submerged arc welding is in the form of…

a) Liquid
b) Granular
c) Solid rod
d) Solid tube

15. Why the electrode used in submerged arc welding normally copper-coated?

a) To prevent rusting & to increase its electrical conductivity
b) To prevent undercut
c) To prevent the rate of flux deposition
d) To prevent gas flow rate

16. The arc length, flux feeding & electrode feed will be controlled by the machine but the
speed of travel is controlled by the operator, which type of submerged arc welding
the process is this?

a) Automatic
b) Semi-automatic
c) Manual
d) All of the above
17. The purpose of the backing bar or backing ring is________
a) To get proper fit-up
b) To increase the strength of the joint
c) To get proper penetration without causing burn through
d) To ease welding

18. Submerged arc welding is a process that generally gives:

a) Slag free welds
b) Low penetration
c) Low dilution
d) High heat input

19. The type of SAW flux is more resistant to moisture absorption:

a) Fused
b) Agglomerated
c) Basic
d) All of about the same resistance

20. A metallurgical problem most associated with submerged arc welding is:

a) Hydrogen cracking in HAZ
b) Solidification cracking in the weld metal
c) Hydrogen cracking in the weld metal
d) Lamellar tearing in the weld metal

21. Submerged arc welding process can be used in:

a) 1G position
b) 2G position
c) 1G & 2G position
d) All positions

22. Which variable in submerged arc welding controls the arc length?

a) Welding voltage
b) Welding speed
c) Welding current
d) Electrode extension.
23. What is the process in which the molten metal and the arc are hidden by a blanket of granular flux on the job?
a) SMAW
b) GTAW
c) GMAW
d) SAW
24. SAW is used mainly for flat positions because of the following reason.
a) Due to the high current used in the process
b) Due to the higher deposition rate
c) Due to higher welding current
d) a large amount of molten metal and flux can be conveniently handled in the flat
position.