ELECTRIC WELDING Part 2
Category –EE Online Test
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Attempt Free ELECTRIC WELDING Part 2 Here. Read The Important Electrical MCQ From Below.
Q1. ____ welding is not a resistance welding process.
A. Projection
B. Seam
C. Flush
D. Carbon arc
Ans. D
Q2. Which of the following is net a welding accessory ?
A. Hand screen
B. Cable
C. Electrode holder
D. Gloves
Ans. B
ELECTRIC WELDING Part 2
Q3. The danger of shock is maximum
A. before welding
B. after arcing
C. during arcing
D. while inserting electrode into the holder
Ans. D
Q4. In a welded joint poor fusion is due to which of the following ?
A. Improper current
B. High welding speed
C. Uncleaned metal surface
D. Lack of flux
Ans. A
Q5. Arc blow results in which of the following?
A. Non-uniform weld beads
B. Shallow weld puddle giving rise to weak weld
C. Splashing out of metal from weld puddle
D. All of the above defects
Ans. D
Q6. Spot welding is used for
A. thin metal sheets
B. rough and irregular surfaces
C. costings only
D. thick sections
Ans. A
ELECTRIC WELDING Part 2
Q7. percent duty cycle of a welding machine means
A. machine input is 50 percent of rated input
B. machine efficiency is 50 percent
C. machine works on 50 percent output
D. machine works for 5 minutes in a duration of 10 minutes
Ans. D
Q8. The power factor of a spot welding machine is expected to be around
A. Unity
B. 0.8 lagging
C. 0.3 to 0.5 lagging
D. 0.8 leading
Ans. C
Q9. Grey iron is usually welded by
A. Gas welding
B. TIG welding
C. MIG welding
D. Arc welding
Ans. A
Q10. The welding electric circuit is
A. never earthed
B. always earthed
C. through cables only
D. All Of Above
Ans. B
