DGVCL Exam Paper (11-12-2011) A fixed step by step procedure for finding the solution of a problem on computer is called Logic Software Algorithm Hardware Logic Software Algorithm Hardware ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (11-12-2011) Kilobyte, megabyte and gigabyte are measuring units used in a computer. How many megabytes make one gigabyte? 1024 1000 1042 1204 1024 1000 1042 1204 ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (11-12-2011) A Mho relay is a Directional restrained over current relay Directional restrained over voltage relay Voltage controlled over current relay Voltage restrained directional relay Directional restrained over current relay Directional restrained over voltage relay Voltage controlled over current relay Voltage restrained directional relay ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (11-12-2011) Ybus used in power flow studies and Zbus used in short circuit studies Are transpose of each other Are the same Have no inter relation Are inverse of each other Are transpose of each other Are the same Have no inter relation Are inverse of each other ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (11-12-2011) The advantage of slipring induction motor over the squirrel cage induction motor is It's power factor is higher It has a higher efficiency It can be started with the help of rotor resistances It is suitable for higher speeds It's power factor is higher It has a higher efficiency It can be started with the help of rotor resistances It is suitable for higher speeds ANSWER EXPLANATION DOWNLOAD EXAMIANS APP slip ring motor have high starting torque compare to squirrel cage motor and have good speed controlalso have high over loading capacity, smooth acceleration under heavy loads.
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 5 % 6 % 4 % 0.4 % 5 % 6 % 4 % 0.4 % 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%
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