DGVCL Exam Paper (11-12-2011) Different computers are connected to a LAN by a cable and a Special wires Interface card Modem Telephone line Special wires Interface card Modem Telephone line ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (11-12-2011) The effect of electric shock on the human body depends on Voltage All of these Current Duration of contact Voltage All of these Current Duration of contact 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 0.4 % 4 % 5 % 6 % 0.4 % 4 % 5 % 6 % 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) Hysteresis in an instrument means The change in the same reading when the input is first increased and then decreased The inaccuracy due to change in temperature The repeatability of the instrument The reliability of the instrument The change in the same reading when the input is first increased and then decreased The inaccuracy due to change in temperature The repeatability of the instrument The reliability of the instrument ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (11-12-2011) The circuit breaker generally used in railway traction is Bulk Oil CB Vacuum CB Air break CB Minimum Oil CB Bulk Oil CB Vacuum CB Air break CB Minimum Oil CB ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (11-12-2011) Which lightning stroke is most dangerous? Direct stroke on line conductor Direct stroke on ground wire Indirect stroke on conductor Direct stoke on tower top Direct stroke on line conductor Direct stroke on ground wire Indirect stroke on conductor Direct stoke on tower top ANSWER DOWNLOAD EXAMIANS APP
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