The ground wire should not be smaller than No _________ copper
The ground wire should not be smaller than No _________ copper
A. 2
B. 4
C. 6
D. 10
Similar Posts
For the protection of power station buildings against direct strokes the requirements are___________?
For the protection of power station buildings against direct strokes the requirements are___________?A. interception
B. interception and conduction
C. interception, conduction and dissipation
D. interception, conduction, dissipation and reflection
E. none of the aboveWhat 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 ?
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 aboveSeries capacitors are used to_________________?
Series capacitors are used to_________________?A. compensate for line inductive reactance
B. compensate for line capacitive reactance
C. improve line voltage
D. none of the aboveBy which of the following methods major portion of the heat generated in a H.R.C. fuse is dissipated ?
By which of the following methods major portion of the heat generated in a H.R.C. fuse is dissipated ?A. Radiation
B. Convection
C. Conduction
D. All of the aboveThe short circuit in any winding of the transformer is the result of______________?
The short circuit in any winding of the transformer is the result of______________?A. mechanical vibration
B. insulation failure
C. loose connection
D. impulse voltageArc in a circuit behaves as_______________?
Arc in a circuit behaves as_______________?A. a capackive reactance
B. an inductive reactance
C. a resistance increasing with voltage rise across the arc
D. a resistance decreasing with voltage rise across the arc