DGVCL Exam Paper (11-12-2011) In a series RLC circuit at resonance Current is maximum and power factor is unity Current is minimum and power factor is unity Current is minimum and power factor is 0.5 Current is maximum and power factor is 0.5 Current is maximum and power factor is unity Current is minimum and power factor is unity Current is minimum and power factor is 0.5 Current is maximum and power factor is 0.5 ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (11-12-2011) It is difficult interrupt a capacitive current because The restriking voltage can be high Stored energy in the capacitor is very high Current magnitude is very small It has a leading power factor The restriking voltage can be high Stored energy in the capacitor is very high Current magnitude is very small It has a leading power factor ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (11-12-2011) A 3 phase, 6 pole induction motor operates on 440 V, 50 Hz, supply. If the actual speed of the motor is 960 rpm the slip will be 6 % 0.4 % 5 % 4 % 6 % 0.4 % 5 % 4 % ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Ns = 120f/PSlip=(Ns-Nr)/NsNs = 1000 and Nr = 960 from equation of slip, S = (1000-960)/1000S = 0.04 or 4%
DGVCL Exam Paper (11-12-2011) The picture on the monitor of a computer is made up of tiny coloured dots called Spots Pixels Points Icons Spots Pixels Points Icons ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (11-12-2011) All the peripheral devices connected to a computer require power to work. Which of the following voltages is required for the motherboard to work? Positive cycle of sine wave DC Negative cycle of sine wave AC Positive cycle of sine wave DC Negative cycle of sine wave AC ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (11-12-2011) A fuse is inserted in Both phased and neutral wire Earth continuity conductor Phase wire Neutral wire Both phased and neutral wire Earth continuity conductor Phase wire Neutral wire ANSWER DOWNLOAD EXAMIANS APP
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