The fluids used in the circuit breakers should be of

high dielectric strength and thermal stability

non inflammable

arc extinguishing ability

all of the above

restriking

breaking

arc

recovery

good cooling properties and absorption of arc energy

high dielectric strength

acting as an Insulator

all of the above

Air blast circuit breaker

Minimum oil circuit breaker

Bulk oil circuit breaker

Sulphur hexafluoride circuit breaker

provide Insulation

provide cooling of contacts

quenching arc

none of the above