A. zero
B. infinity
C. unity
D. none of the above
Related Mcqs:
- What will be the reflection co-efficient of the wave of load connected to transmission line if surge impedance of the line is equal to load ?
A. Zero
B. Unity
C. Infinity
D. None of the above - When a wave propagates on a transmission line, it suffers reflection several times at_____________?
A. tapping
B. load end
C. sending end
D. sending and other end
E. all of the above - transmission line has reflection coefficient as one?
A. Open circuit
B. Short-circuit
E. Long
D. None of the above - When a transmission line is energized, the wave that propagates on it is____________?
A. current wave only
B. voltage wave only
C. Both (A) and (B)
D. power factor wave only - A transmission line is protected by_____________?
A. inrush protection
B. distance protection
C. time graded and current graded over current protection
D. both (B) and (C)
E. none of the above - relay is preferred for phase fault on short transmission line?
A. Induction type
B. Reactance
C. Impedance
D. None of the above - Which of the following devices will receive voltage surge first travelling on the transmission line ?
A. Lightning arresters
B. Relays
C. Step-down transformer
D. Switchgear - An efficient and a well designed protective relaying should have_____________?
A. good selectivity and reliability
B. economy and simplicity
C. high speed and selectivity
D. all of the above - With which of the following, a circuit breaker must be equipped for remote operation ?
A. Inverse time trip
B. Time-delay trip
C. Shunt trip
D. None of the above
E. All of the above - The power loss is an important factor for the design of_______________?
A. transmission line
B. motor
C. generator
D. feeder
