The a+ advanTage: ace 2026/2027
neRc final examinaTion wiTh This
sTudy guide compRehensive q & a
◉Which curve represents the results of a study on voltage response
to power flow?
a) D Curve
b) P-V Curve
c) Ferranti Curve
d) VRS Curve. Answer: b) P-V Curve
◉Two adjacent lines exist in a Balancing Area that are the same
length and have the same ratings. One line is overhead and the other
is underground. How do these two lines respond as load picks up
through the day?
a) The overhead line will carry more of the load increase
b) The underground line will carry more of the load increase
c) The load increase will be distributed evenly over the two lines
, d) The line with the higher impedance will carry more of the load.
Answer: b) The underground line will carry more of the load
increase
◉To be effective, reactive resources should be:
a) Centrally located in the system
b) Located close to generation
c) In areas subject to high voltages
d) Located close to load areas. Answer: d) Located close to load
areas
◉Voltage is high in an area due to off-peak demand. There are
several lightly loaded high voltage transmission lines going to radial
loads. All capacitor banks are out of service. Generators still have
reactive reserves both leading and lagging. What should be done
first to lower the voltage?
a) De-energize the lightly loaded lines
b) Use generators to absorb VARs
c) Place capacitor banks in service as needed
d) Increase voltage to increase load. Answer: b) Use generators to
absorb VARs
neRc final examinaTion wiTh This
sTudy guide compRehensive q & a
◉Which curve represents the results of a study on voltage response
to power flow?
a) D Curve
b) P-V Curve
c) Ferranti Curve
d) VRS Curve. Answer: b) P-V Curve
◉Two adjacent lines exist in a Balancing Area that are the same
length and have the same ratings. One line is overhead and the other
is underground. How do these two lines respond as load picks up
through the day?
a) The overhead line will carry more of the load increase
b) The underground line will carry more of the load increase
c) The load increase will be distributed evenly over the two lines
, d) The line with the higher impedance will carry more of the load.
Answer: b) The underground line will carry more of the load
increase
◉To be effective, reactive resources should be:
a) Centrally located in the system
b) Located close to generation
c) In areas subject to high voltages
d) Located close to load areas. Answer: d) Located close to load
areas
◉Voltage is high in an area due to off-peak demand. There are
several lightly loaded high voltage transmission lines going to radial
loads. All capacitor banks are out of service. Generators still have
reactive reserves both leading and lagging. What should be done
first to lower the voltage?
a) De-energize the lightly loaded lines
b) Use generators to absorb VARs
c) Place capacitor banks in service as needed
d) Increase voltage to increase load. Answer: b) Use generators to
absorb VARs
