The insulating material should have____________?

A. easy maintenance
B. low cost
C. can be used in congested areas
D. can be used in high voltage circuits

A. Yes
B. No

A. it is hygroscopic
B. it has high capacitance
C. it is an organic material
D. none of the above

A. annealed
B. hardened and tempered
C. hard drawn
D. alloy with chromium

A. inter-sheaths
B. insulating materials with different dielectric constants
C. both (A) and (B)
D. none of the above

A. Yes
B. No