Three Phase Systems In Power Applications MCQ Questions & Answers | Electrical Engineering

A. Load voltage and line voltage are one-third the source voltage for a given phase

B. Load voltage and line voltage are two-thirds the source voltage for a given phase

C. Load voltage and line voltage cancel for a given phase

D. Load voltage, line voltage, and source phase voltage are all equal for a given phase

A. Phase current, the line current and the load current are all equal in each phase

B. Phase current, the line current and the load current are 120° out of phase

C. Phase current and the line current are in phase and both are 120° out of phase with the load current

D. Line current and the load current are in phase and both are out of phase with the phase current

A. Zero

B. One-third of maximum

C. Two-thirds of maximum

D. At maximum

A. Single-phase induction motor

B. Two-phase induction motor

C. Three-phase induction motor

D. Two-phase squirrel-cage motor

A. Zero

B. Equal in magnitude

C. One-third of total

D. One-sixth of total

A. One-third the phase current

B. Three times the corresponding phase current

C. Equal to the corresponding phase current

D. Zero

A. 3 A

B. 6 A

C. 9 A

D. 27 A

A. 0 V

B. 90 V

C. 156 V

D. 180 V

A. True

B. False

A. Each phase voltage equals the difference of the corresponding load voltages

B. Each phase voltage equals the corresponding load voltage

C. Each phase voltage is one-third the corresponding load voltage

D. Each phase voltage is 60° Ωut of phase with the corresponding load voltage