- (A) Circuit breakers
- (B) Isolators
- (C) Load break switch
- (D) Circuit breakers and load break switches
Electrical Engineering Mcqs
- (A) line is energized
- (B) there is no current in the line
- (C) line is on full load
- (D) circuit breaker is not open
- (A) Current only
- (B) Current and voltage
- (C) Current, voltage and frequency
- (D) Current, voltage, frequency and short time current
- (A) compensate for skin effect
- (B) neutralise proximity effect
- (C) reduce line inductance
- (D) increase the tensile strength
- (A) Using a guard ring
- (B) Grading the insulator
- (C) Using long cross arm
- (D) Any of the above
- (E) None of the above
- (A) current flows through the half cross-section of the conductor
- (B) portion of the conductor near the surface carries more current and core of the conductor carries less current
- (C) portion of the conductor near the surface carries less current and core of the conductor carries more cur¬rent
- (D) any of the above
- (E) none of the above
- (A) Ring bus-bar scheme
- (B) Single bus-bar scheme
- (C) Breaker and a half scheme
- (D) Main and transfer scheme
- (A) Frequency of the current
- (B) Size of the conductor
- (C) Resistivity of the conductor material
- (D) All of the above
- (A) large conductor area is required for same power transmission
- (B) short-circuit current of the system is increased
- (C) either of the above
- (D) none of the above
- (A) primary winding
- (B) secondary winding
- (C) high voltage winding
- (D) any of the above
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