2. The cause of damage to the lead sheath of a cable is
crystallisation of the lead through vibration
chemical action on the lead when buried in the earth
mechanical damage
Answer is Right!
Answer is Wrong!
Detailed SolutionThe cause of damage to the lead sheath of a cable is
3. For an overhead line, the surge impedance is taken as
20-30 ohms
70-80 ohms
100-200 ohms
500-1000 ohms
Answer is Right!
Answer is Wrong!
Detailed SolutionFor an overhead line, the surge impedance is taken as
4. The corona is considerably affected by which of the following?
Size of the conductor
Shape of the conductor
Surface condition of the conductor
All of the above
Answer is Right!
Answer is Wrong!