GETCO Exam Paper (11-06-2017) The lead sheath of the cable may get damaged due to any one crystallisation of lead through vibrations mechanically injury chemical action with impurities present in the soil when buried in earth any one crystallisation of lead through vibrations mechanically injury chemical action with impurities present in the soil when buried in earth ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (11-06-2017) The power factor of an open ended cable can be improved by increasing the conductor resistance increasing the insulation resistance decreasing the capacitance increasing the capacitance increasing the conductor resistance increasing the insulation resistance decreasing the capacitance increasing the capacitance ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (11-06-2017) The rate of rise of restriking voltage depends on the inductance of the system only the capacitance of the system only the type of circuit breaker both inductance and capacitance of the system the inductance of the system only the capacitance of the system only the type of circuit breaker both inductance and capacitance of the system ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (11-06-2017) The charging current in the cables leads the voltage by 180˚ lags the voltage by 180˚ leads the voltage by 90˚ lags the voltage by 90˚ leads the voltage by 180˚ lags the voltage by 180˚ leads the voltage by 90˚ lags the voltage by 90˚ ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (11-06-2017) If the reading of two wattmeters are equal and positive in two wattmeter method, the load power factor in abalanced 3-phase 3-wire circuit will be zero 0.5 unity 0.866 zero 0.5 unity 0.866 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP W1 = W2 (+Ve) → PF = 1W1, W2 Positive → PF > 0.5W1 +Ve, W2 = 0 → PF = 0.5W1 +Ve, W2 = -Ve → PF < 0.5W1 = - W2 → PF = 0
GETCO Exam Paper (11-06-2017) The capacitance of a capacitor is _____ relative permittivity directly proportional to square of independent of inversely proportional to directly proportional to directly proportional to square of independent of inversely proportional to directly proportional to ANSWER EXPLANATION DOWNLOAD EXAMIANS APP C = ε A/d
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