MCQs: Spot welding is used to weld metal pieces whose thickness
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MCQs: The voltage - current characteristics of the arc welding must be
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MCQs: The advantage of rectifier type welding set is
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MCQs: For a good weld,
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MCQs: A rectifier with an external low pass filter is an example of
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MCQs: In ac - dc conversion, when the switch is closed then the sum of voltages around the loop is
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MCQs: An ideal switch is
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MCQs: IGBT stands for
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MCQs: Number of PN junction in an SCR is
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MCQs: In a silicon controlled rectifier, the load is connected
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MCQs: Anode of an operational SCR is
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MCQs: If the gate voltage of an SCR is removed, then the
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MCQs: A single phase ac - dc converter is also known as
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MCQs: In a full wave rectifier, the rectification ratio is approximately equal to
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MCQs: For power output higher than 15 kW, the suitable rectifier is
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MCQs: The sum of all phase current in a star connected primary winding with no neutral connection is equal to
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MCQs: In a 3 phase bridge rectifier the ripple frequency is
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MCQs: DIAC are specifically designed to trigger
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MCQs: As the breakdown voltage reached, the DIAC exhibits
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MCQs: In BJT, the forward biased base emitter junction inject holes from base to emitter, the holes
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