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Workshop Technology
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Question
In submerged arc welding, an arc is produced between a
Options
A. carbon electrode and the work
B. metal electrode and the work
C. bare metal electrode and the work
D. two tungsten electrodes and the work
Correct Answer
bare metal electrode and the work
Workshop Technology problems
Search Results
1. The temperature at which the new grains are formed in the metal is called
Options
A. lower critical temperature
B. upper critical temperature
C. eutectic temperature
D. recrystallisation temperature
Show Answer
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Discuss
Correct Answer: recrystallisation temperature
2. When a hole or cavity to be cored is not in line with the parting surface, then a __________ is used.
Options
A. horizontal core
B. vertical core
C. drop core
D. balanced core
Show Answer
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Discuss
Correct Answer: drop core
3. The low pressure acetylene is produced at the welding site by the chemical reaction between water and calcium carbonate.
Options
A. Correct
B. Incorrect
Show Answer
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Discuss
Correct Answer: Incorrect
4. In a hot chamber die casting machine
Options
A. ferrous alloys with low melting temperature are casted
B. ferrous alloys with high melting temperature are casted
C. non-ferrous alloys with low melting temperature are casted
D. non-ferrous alloys with high melting temperature are casted
Show Answer
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Correct Answer: non-ferrous alloys with low melting temperature are casted
5. In welding copper alloys with TIG arc welding
Options
A. direct current with straight polarity is used
B. direct current with reversed polarity is used
C. alternating current is used
D. any one of these
Show Answer
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Discuss
Correct Answer: direct current with straight polarity is used
6. The chisel used for cutting key ways is
Options
A. flat chisel
B. cape chisel
C. round nose chisel
D. diamond pointed chisel
Show Answer
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Discuss
Correct Answer: cape chisel
7. When a pattern is made in three parts, the bottom part is known as a cope.
Options
A. True
B. False
Show Answer
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Correct Answer: False
8. In a centrifugal casting method, the impurities are collected in the centre of the casting.
Options
A. Yes
B. No
Show Answer
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Correct Answer: Yes
9. Which of the following welding process uses non-consumable electrodes?
Options
A. TIG welding
B. MIG welding
C. Manual arc welding
D. Submerged arc welding
Show Answer
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Discuss
Correct Answer: TIG welding
10. In a hot chamber die casting machine
Options
A. melting pot is separate from the machine
B. melting pot is an integral part of the machine
C. melting pot may have any location
D. high temperature and pressure is used
Show Answer
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Discuss
Correct Answer: melting pot is an integral part of the machine
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