GETCO Exam Paper (11-06-2017) The stability of arc in vacuum depends on the contact material and its vapour pressure the contact material only the contact material with its vapour presssure and the circuit parameters the circuit parameters only the contact material and its vapour pressure the contact material only the contact material with its vapour presssure and the circuit parameters the circuit parameters only ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (11-06-2017) Who is the first Asian winner of Noble prize? V. Raman Dalai Lama Mother Teresa Rabindranath Tagore V. Raman Dalai Lama Mother Teresa Rabindranath Tagore ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (11-06-2017) For the protection of power system against travelling waves, we use overhead ground wires None of these earthing screens surge diverters overhead ground wires None of these earthing screens surge diverters 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 0.866 unity zero 0.5 0.866 unity 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) By increasing the transmission voltage to double of its original value the same power can be dispatched equal to original value half the original value one fourth of original value double the original value equal to original value half the original value one fourth of original value double the original value ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (11-06-2017) In a 3-phase, 4-wire cable the cross sectional area of neutral conductor is 1.5 times the area of phase conductor double the area of phase conductor equal to the area of phase conductor half of the area of phase conductor 1.5 times the area of phase conductor double the area of phase conductor equal to the area of phase conductor half of the area of phase conductor ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Answer as per answer key provided is “double the area of phase conductor”. But neutral wire can be half of phase.
EXAMIANS