A. unsheathed cables
B. armoured
C. PVC sheathed cables
D. all 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. steel tape
B. galvanised steel wire
C. any of the above
D. none of the above
A. polyvinyl chloride
B. post varnish conductor
C. pressed and varnished cloth
D. positive voltage conductor
E. none of the above
A. insulation may melt due to higher temperature
B. skin effect dominates on the conductor
C. of corona loss between conductor and sheath material
D. there is a danger of breakdown of insulation due to the presence of voids
A. between 2 and 3
B. between 5 and 6
C. between 8 and 10
D. between 12 and 14