51. In a cable the voltage stress is maximum at A. Sheath B. Insulator C. Surface of the conductor D. Core of the conductor Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option D No explanation is given for this question Let's Discuss on Board
52. The disadvantage with paper as insulating material is A. It is hygroscopic B. It has high capacitance C. It is an organic material D. None of the above Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option A No explanation is given for this question Let's Discuss on Board
53. Which of the following protects a cable against mechanical injury? A. Bedding B. Sheath C. Armouring D. None of the above Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option C No explanation is given for this question Let's Discuss on Board
54. In cables the charging current A. Lags the voltage by 90° B. Leads the voltage by 90° C. Lags the voltage by 180° D. Leads the voltage by 180° Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option B No explanation is given for this question Let's Discuss on Board
55. The relative permittivity of rubber is A. Between 2 and 3 B. Between 5 and 6 C. Between 8 and 10 D. Between 12 and 14 Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option A No explanation is given for this question Let's Discuss on Board
56. In the cables, the location of fault is usually found out by comparing A. The resistance of the conductor B. The inductance of conductors C. The capacitances of insulated conductors D. All above parameters Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option C No explanation is given for this question Let's Discuss on Board
57. In single core cables armouring is not done to A. Avoid excessive sheath losses B. Make it flexible C. Either of the above D. None of the above Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option A No explanation is given for this question Let's Discuss on Board
