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Q Describe about Push-pull welds?
- A push-pull system employs transformers with an electrically reversed polarity arrangement wherein two transformers complement each other to form circulating welding current circuit.
- Opposing electrodes are connected to different transformers and are of opposite polarity.
- Two spot welds may be obtained simultaneously.
what is principle of gyroscope
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Write a literature review on the manufacture and application of metallurgical cokes in Nigeria.
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