A. be acid proof
B. be non-inflammable
C. be non-hygroscopic
D. have all above properties
Related Mcqs:
- The insulating material for a cable should have__________?
A. low cost
B. high dielectric strength
C. high mechanical strength
D. all of the above - 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 - The insulating material should have____________?
A. low permittivity
B. high resistivity
C. high dielectric strength
D. all of the above - Which of the following insulation is used in cables ?
A. Varnished cambric
B. Rubber
C. Paper
D. Any of the above - The thickness of the layer of insulation on the conductor, in cables, depends upon___________?
A. reactive power
B. power factor
C. voltage
D. current carrying capacity - 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 - The intersheaths in the cables are used to_____________?
A. minimize the stress
B. avoid the requirement of good insulation
C. provide proper stress distribution
D. none of the above - Copper as conductor for cables is used as________?
A. annealed
B. hardened and tempered
C. hard drawn
D. alloy with chromium - The advantage of oil filled cables is_________?
A. more perfect impregnation
B. smaller overall size
C. no ionisation, oxidation and formation of voids
D. all of the above - The advantage of cables over overhead transmission lines is___________?
A. easy maintenance
B. low cost
C. can be used in congested areas
D. can be used in high voltage circuits
