Short transmission lines
Medium transmission lines
Long transmission lines
Medium as well as long transmission lines
Answer is Wrong!
Answer is Right!
42. For aluminium, as compared to copper, all the following factors have higher values except
Specific volume
Electrical conductivity
Coefficient of linear expansion
Resistance per unit length for same cross-section
Answer is Wrong!
Answer is Right!
43. The operating voltage of high voltage cables is up to
l.lkV
3.3kV
6.6kV
llkV
Answer is Wrong!
Answer is Right!
Detailed SolutionThe operating voltage of high voltage cables is up to
44. When an alternator connected to the bus-bar is shut down the bus-bar voltage will
Fall
Rise
Remain unchanged
None of the above
Answer is Wrong!
Answer is Right!
Detailed SolutionWhen an alternator connected to the bus-bar is shut down the bus-bar voltage will
45. When a conductor carries more current on the surface as compared to core, it is due to
Permeability variation
Corona
Skin effect
Unsymmetrical fault
Answer is Wrong!
Answer is Right!