- (A) it is hygroscopic
- (B) it has high capacitance
- (C) it is an organic material
- (D) none of the above
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- (A) easy maintenance
- (B) low cost
- (C) can be used in congested areas
- (D) can be used in high voltage circuits
- (A) use of dielectrics of different permeabilities
- (B) grading according to capacitance of cables per km length
- (C) cables using single dielectric in different concentrations
- (D) capacitance required to be introduced at different lengths to counter the effect of inductance
- (E) none of the above
- (A) hysteresis losses only
- (B) hysteresis and leakage losses only
- (C) hysteresis, leakage and copper losses only
- (D) hysteresis, leakage, copper and friction losses
- (A) same at the conductor and the sheath
- (B) minimum at the conductor and maximum at the sheath
- (C) maximum at the conductor and minimum at the sheath
- (D) zero at the conductor as well as on the sheath
- (E) none of the above
- (A) to minimise temperature stresses
- (B) to avoid being unearthed easily due to removal of soil
- (C) to minimize the effect of shocks and vibrations due to gassing vehicles, etc
- (D) for all of the above reasons
- (A) presence of moisture
- (B) working temperature
- (C) time of application of the voltage
- (D) all of the above
- (A) more perfect impregnation
- (B) smaller overall size
- (C) no ionisation, oxidation and formation of voids
- (D) all of the above
- (A) annealed
- (B) hardened and tempered
- (C) hard drawn
- (D) alloy with chromium
- (A) mica insulated
- (B) paper insulated
- (C) compressed oil or compressed gas insulated
- (D) rubber insulated
- (E) none of the above
