GETCO Exam Paper (11-06-2017) To improve the power factor in three phase circuits, the capacitor bank is connected in delta to make the power factor correction more effective capacitance very small the connection elegant capacitance calculation elegant the power factor correction more effective capacitance very small the connection elegant capacitance calculation elegant 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 unity 0.866 0.5 zero unity 0.866 0.5 zero 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) In a 3-phase supply, floating neutral is undesirable because it may result in _____ across the load low voltage high voltage unequal line voltage none low voltage high voltage unequal line voltage none ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (11-06-2017) For which one of the following materials, is the Hall Coefficient zero? Insulator Intrinsic semiconductor Metal Alloy Insulator Intrinsic semiconductor Metal Alloy ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (11-06-2017) Conductivity of aluminium is _____ time of that of copper 1.63 2.5 0.4 0.6 1.63 2.5 0.4 0.6 ANSWER DOWNLOAD EXAMIANS APP
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