EXAMIANS
The motor used in celling fans is
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In which of the following motors, the stator and rotor magnetic fields rotate at the same speed?
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The insulation coordination for UHV lines (above 500 kV) is done based on
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At time t= 0+ , with zero initial condition, which of the following acts as a short circuit?
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The purpose of interpoles in DC machines is to nullify
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In the protection of transformers, harmonic restraint is used to guard against
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It is difficult interrupt a capacitive current because
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If the voltage at the two ends of a line are 132 kV, and its reactance is 40 Ω, the stability limit of the line is
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Distribution transformers have good all day efficiency due to
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Rated making capacity of a ciruit breaker is equal to
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