Previous Year Question
Which of the following methods helps find the exact point of breakdown in an underground cable?
Correct answer: A
Explanation
The Murray loop test is a bridge-type fault-location method used to locate earth and short-circuit faults in underground cables by comparing cable resistances and using the known cable length.
Step-by-step solution
Correct Answer
A — Murray loop test
Explanation
The Murray loop test is a bridge-type fault-location method used to locate earth and short-circuit faults in underground cables by comparing cable resistances and using the known cable length.
Key Concept
Murray Loop Test
Exam Point
Underground cable fault location → Murray loop/Varley loop methods.
Exam tip
Underground cable fault location → Murray loop/Varley loop methods.
Quick method
Underground cable fault location → Murray loop/Varley loop methods.