1 in which of the following welding processes we use two non consumable electrodes a metal gas a

Question

In which of the following welding processes do we use two non-consumable electrodes? a. Metal gas arc welding b. Tungsten gas arc welding c. Atomic hydrogen d. Submerged arc 2. .... produces a narrow and deep weld bead. a. Straight polarity direct current b. Reverse polarity direct current c. Alternating current d. none of the above 3. In plasma arc welding, _______ is used to protect the weld zone. a. flux b. inert gas c. both a and b d. none of the above 4. In which of the following welding processes does the electrode get consumed? a. Tungsten arc gas welding b. Resistance welding c. Plasma welding d. shielded arc welding 5. In reverse polarity welding _ a. work piece is connected as negative, and holder is earthed b. electrode holder is connected to negative and work piece to positive c. electrode holder is connected to positive and work piece to negative d. both electrode holder and work piece are connected to negative 6. In which of the following welding processes is no filler material added during joining? a. Autogenous b. Homogenous c. Heterogenous d. none of the above 7. Arc-welding uses the following electric supply ......... a. A.C b. D.C c. Both AC and DC d. Spiral waveform 8. Submerged arc welding can be used in the following positions a. flat b. overhead c. vertical d. all of the above 9. In which of the following gas welding processes is a non-consumable electrode used? a. Submerged arc welding b. Gas tungsten arc welding c. Stud welding d. Gas metal arc welding 10. In fusion welding, welded pieces are kept together under pressure. a. True b. False 11. Which of the following processes can be used in cutting metals? a. Oxy-Fuel b. Plasma Arc c. LASER d. All of the above 12. In GMAW, _ is/are used for the protection of the weld zone a. Argon b. Helium c. both a and b d. none of the above 13. Electron beam welding is carried out in _______ a. Inert atmosphere b. Partially filled chamber c. Vacuum d. Partially vacuum 14. Carburizing flame has an excess of oxygen supply. a. True b. False

In which of the following welding processes do we use two non-consumable electrodes?
a. Metal gas arc welding
b. Tungsten gas arc welding
c. Atomic hydrogen
d. Submerged arc

2. .... produces a narrow and deep weld bead.
a. Straight polarity direct current
b. Reverse polarity direct current
c. Alternating current
d. none of the above

3. In plasma arc welding, _____________ is used to protect the weld zone.
a. flux
b. inert gas
c. both a and b
d. none of the above

4. In which of the following welding processes does the electrode get consumed?
a. Tungsten arc gas welding
b. Resistance welding
c. Plasma welding
d. shielded arc welding

5. In reverse polarity welding _____________
a. work piece is connected as negative, and holder is earthed
b. electrode holder is connected to negative and work piece to positive
c. electrode holder is connected to positive and work piece to negative
d. both electrode holder and work piece are connected to negative

6. In which of the following welding processes is no filler material added during joining?
a. Autogenous
b. Homogenous
c. Heterogenous
d. none of the above

7. Arc-welding uses the following electric supply .........
a. A.C
b. D.C
c. Both AC and DC
d. Spiral waveform

8. Submerged arc welding can be used in the following positions
a. flat
b. overhead
c. vertical
d. all of the above

9. In which of the following gas welding processes is a non-consumable electrode used?
a. Submerged arc welding
b. Gas tungsten arc welding
c. Stud welding
d. Gas metal arc welding

10. In fusion welding, welded pieces are kept together under pressure.
a. True
b. False

11. Which of the following processes can be used in cutting metals?
a. Oxy-Fuel
b. Plasma Arc
c. LASER
d. All of the above

12. In GMAW, _____________ is/are used for the protection of the weld zone
a. Argon
b. Helium
c. both a and b
d. none of the above

13. Electron beam welding is carried out in _____________
a. Inert atmosphere
b. Partially filled chamber
c. Vacuum
d. Partially vacuum

14. Carburizing flame has an excess of oxygen supply.
a. True
b. False

Added by Joan I.