Q181
Open questionThe scale of a rectifier instrument is
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Electrical Engineering · all questionsElectrical Machine Design
Electrical Machine Design
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Q182
Open questionWhich of the following in an application of D.C. motors?
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Q183
Open questionMost sensitive galvanometer is
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Q184
Open questionDirect water cooling of rotor winding presents
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Q185
Open questionAccording to application, instruments are classified as
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Q186
Open questionTractive magnets are operated from
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Q187
Open questionIf an instrument has cramped scale for larger values, then it follows
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Q188
Open questionThe resistivity of water should not be less than
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Q189
Open questionIn a D.C. machine the current per brush arm should not be more than
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Q190
Open questionThe power factor of a single phase load can be calculated if the instruments available are
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Q191
Open questionMurray loop test can be used for location of
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Q192
Open questionThe laminations of the armature of a D.C. machine are usually _____ thick.
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Q193
Open questionFor measurement of inductance having high value, we should use
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Q194
Open questionD.C. servomotors are used in
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Q195
Open questionA power factor meter has
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Q196
Open questionHelical windings are used in
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Q197
Open questionTransformers with a capacity of up to _____ have a cooling radiator system with natural cooling
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Q198
Open questionIn a single phase power factor meter the phase difference between the currents in the two pressure coils is
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Q199
Open questionIn self cooled motors the cooling time constant is about ______ than the heating time constant because cooling conditions are worse at standstill.
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Q200
Open questionThe power of a n-phase circuit can be measured by using a minimum of
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