Exercise: Workshop Technology

Questions for: Workshop Technology

The welding process used to join the ends of two pipes of uniform cross-section, is
A:
spot welding
B:
seam welding
C:
projection welding
D:
upset butt welding
Answer: D
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In a four high rolling mill, the diameter of backing up rolls is __________ the diameter of working rolls.
A:
equal to
B:
smaller than
C:
larger than
D:
Answer: C
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The hot working of metals is carried out
A:
at the recrystallisation temperature
B:
below the recrystallisation temperature
C:
above the recrystallisation temperature
D:
at any temperature
Answer: C
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When the file is moved to and fro over the work, it is known as
A:
cross filing
B:
draw filing
C:
pull and push filing
D:
none of these
Answer: B
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For arc welding
A:
alternating current with high frequency is used
B:
alternating current with low frequency is used
C:
direct current is used
D:
any one of these
Answer: C
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