9) Fluxes are used in welding in order to protect the molten metal and surfaces to be joined from

oxidation

distortion and warping

unequal temperature distribution

dirt

Answer is:

oxidation

ISRO Technician-B Welder Question Paper - 2016 (Set -1) with Answer Key

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10) Weaving in an arc welding refers to

side to side motion of the electrode at right angles to the direction of welding

side to side motion of electrode along the direction of welding

spiral motion given to the electrode during welding

a technique of striking the arc

Answer is:

side to side motion of the electrode at right angles to the direction of welding

11) Weld spatter is

a welding defect

an electrode coating

a welding technique

a type of flux

Answer is:

a welding defect

12) Undercuts arc weld defects in weldments caused due to

low welding current

excessive welding current

unclean surfaces

too high welding speed

Answer is:

excessive welding current

13) Which of the following process will be preferred for joining thin foils?

Gas welding

Plasma arc welding

MIG welding

Thermit welding

Answer is:

Plasma arc welding

ISRO Technician-B Welder Question Paper - 2016 (Set -1) with Answer Key

For more MCQ's Click Here

9) Fluxes are used in welding in order to protect the molten metal and surfaces to be joined from

oxidation

ISRO Technician-B Welder Question Paper - 2016 (Set -1) with Answer Key

Related ISRO Technician-B Welder Question Paper - 2016 (Set -1) with Answer Key

10) Weaving in an arc welding refers to

side to side motion of the electrode at right angles to the direction of welding

11) Weld spatter is

a welding defect

12) Undercuts arc weld defects in weldments caused due to

excessive welding current

13) Which of the following process will be preferred for joining thin foils?

Plasma arc welding

ISRO Technician-B Welder Question Paper - 2016 (Set -1) with Answer Key