GETCO Exam Paper (11-06-2017) Effect of temperature rise in overhead lines is to increase both decrease both decrease the sag and increase the tension increase the sag and decrease the tension increase both decrease both decrease the sag and increase the tension increase the sag and decrease the tension 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 0.5 unity zero 0.866 0.5 unity zero 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 charging current in the cables leads the voltage by 180˚ leads the voltage by 90˚ lags the voltage by 180˚ lags the voltage by 90˚ leads the voltage by 180˚ leads the voltage by 90˚ lags the voltage by 180˚ lags the voltage by 90˚ ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (11-06-2017) The power factor of an open ended cable can be improved by increasing the capacitance decreasing the capacitance increasing the insulation resistance increasing the conductor resistance increasing the capacitance decreasing the capacitance increasing the insulation resistance increasing the conductor resistance ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (11-06-2017) The most common type of fault is three phase to ground single phase to ground two phase to ground phase-to-phase three phase to ground single phase to ground two phase to ground phase-to-phase ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (11-06-2017) The voltage across the various discs of a string of suspension insulators having identical discs is different due to series capacitance shunt capacitance to ground series and shunt capacitance surface leakage currents series capacitance shunt capacitance to ground series and shunt capacitance surface leakage currents ANSWER DOWNLOAD EXAMIANS APP
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