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 0.866 zero unity 0.5 0.866 zero unity 0.5 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 rated voltage of a 3-phase power system is given as rms line-to-line voltage rms phase voltage peak line-to-peak voltage peak phase voltage rms line-to-line voltage rms phase voltage peak line-to-peak voltage peak phase voltage ANSWER DOWNLOAD EXAMIANS APP
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 calculation elegant the connection elegant capacitance very small the power factor correction more effective capacitance calculation elegant the connection elegant capacitance very small ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (11-06-2017) The output of a solar cell is of the order of 5.0 W 0.5 W 1.0 W 10.0 W 5.0 W 0.5 W 1.0 W 10.0 W ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (11-06-2017) Burden of a protective relay is the power absorbed by the circuit of relay developed by the relay circuit required to operate the circuit breaker none absorbed by the circuit of relay developed by the relay circuit required to operate the circuit breaker none ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (11-06-2017) The function of a surge tank is to supply water at constant pressure relieve water hammer pressure in the penstock pipe none produce surge in the pipeline supply water at constant pressure relieve water hammer pressure in the penstock pipe none produce surge in the pipeline ANSWER DOWNLOAD EXAMIANS APP
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