Q.31 A series capacitors are used in EHV
or UHV transmission lone to reduce the effect of________ between the sending
and receiving end of the line.
A.
Resistive
B.
Capacitve reactance
C.
inductive reactance
D.
impedance
Ans.: C
Q.32 The voltage drop in the line is
reduced by___
A. shunt
capacitor
B. series
capacitor
C. shunt
reactor
D. series
reactor
Ans.: B
Q.33 What is drawback of the series
capacitor in the line?
A. the
high overvoltage produced across the capacitor terminals during short circuit
conditions
B. the
high over current during short circuit conditions
C. the
high under voltage produced across the capacitor terminals during heavy load
conditions
D. none of
the above
Ans.: A
Q.34 The receiving end voltage of line
is improved on load by using___
A. shunt
capacitor
B. series
capacitor
C. shunt
reactor
D. series
reactor
Ans.: B
Q.35 _____is used on EHV transmission
lines to control steady state over voltage when energizing the long EHV lines.
A. shunt
capacitor
B. series
capacitor
C. shunt
reactor
D. series
reactor
Ans.: A
Q.36 The power transfer capability of
the transmission line can be increased by using ____
A. shunt
capacitor
B. series
reactor
C. shunt
reactor
D. series
capacitor
Ans.: D
Q.37 Under heavy load conditions of
transmission lines, ____ switched out.
A. series
resistors
B. series
capacitors
C. shunt
reactors
D. shunt
reactors
Ans.: C
Q.38 Series capacitors are installed in
transmission lines at____
A. sending
end
B.
receiving end
C.
intermediate
D. any of
the above
Ans.: B
Q.39 Static shunt capacitors are
installed _____
A. near
the generating stations
B. near
the sending substations
C. near
the load terminals
D. any of
the above
Ans.: C
Q.40 Shunt capacitors installed near the
load terminals to provide____
A. lagging
volt-ampere reactive
B. leading
volt ampere reactive
C. leading
volt ampere active
D. lagging
volt ampere lagging
Ans.: B
Q.41 By using static shunt
capacitors____
A. line
drop is reduced
B. total
KVA loading of the substation is reduced
C. voltage
regulation is improved
D. all of
the above
Ans.: D
Q.42 The line current is reduced by
using _____in the long transmission line.
A. shunt
resistors
B. shunt
reactors
C. shunt
capacitors
D. series
reactors and series capacitors
Ans.: C
Q.43 The voltage of a particular bus is
regulated by controlling the
A. active
power of the bus
B.
reactive power of the bus
C. phase
angle and reactive power
D. phase
angle
Ans.: C
Q.44 The voltage of a transmission line
can be controlled by
A. using
induction regulator
B.
reactive VAR injection methods
C.
excitation control
D. all of
the above
Ans.: D
Q.45 Series capacitor is used in a
transmission line to__
A.
compensate the voltage drop
B. reduce
line losses
C. limit
short circuit current
D. improve
load power factor
Ans.: A
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