Power Systems
The arc voltage produced in an AC circuit breaker is always

 lagging the arc current by 90°.
 in phase opposition with the arc current.
 leading the arc current by 90°.
  in phase with the arc current.

ANSWER DOWNLOAD EXAMIANS APP

Power Systems
The VSWR of transmission line is

 Proportional to load and characteristic impedance.
 Directly proportional to voltage minimum and inversely proportional to voltage maximum.
  Directly proportional to load impedance and inversely to characteristic impedance.
 Directly proportional to characteristic impedance and inversely to load impedance.

ANSWER DOWNLOAD EXAMIANS APP