Practice MCQ Questions and answers on Power System Analysis, Stability & Computer Technique Test Questions

A. A ratio of actual value in any units to the base or reference value in the same units

B. A ratio of the base or reference value in any units to the actual value in the same units.

C. Ratio of the square of the actual value in any units to the square of base or the reference value in the same units

D. All of these

A. Single line diagram

B. Resistance diagram

C. Reactance diagram

D. Both (a) and (b)

E. None of these

A. 0.043 pu

B. 0.057 pu

C. 0.036 pu

D. 0.298 pu

A. Per unit impedance of transformers is the same referred to either side of it.

B. For simulating steady state and transient models in the computer this method is very useful.

C. Manufactures usually specify the impedance of an apparatus in per unit system.

D. All of these

A. A large system with infinite voltage

B. A large system in which the voltage and frequency varies

C. A large system whose voltage and frequency remains constant throughout.

D. Both (a) and (b)

E. None of these

A. The neutral reactance are neglected

B. Static loads are neglected.

C. The capacitance of the transmission lines are neglected

D. Only a and c

E. All of these

A. Single line to ground fault.

B. Double line to ground fault

C. Line to line fault

D. Fault due to all the three phases to earth.

A. Single line to ground fault.

B. Double line to ground fault

C. Line to line fault

D. Fault due to all the three phases to earth.

A. Alternators

B. Transformers

C. Transmission lines

D. Underground cables

A. Single line to ground fault.

B. Double line to ground fault

C. Line to line fault

D. Symmetrical fault.