GETCO Exam Paper (22-07-2015) In sub stations for making and breaking of load current relays are used load interrupter switches are used isolators are used circuit breakers are used relays are used load interrupter switches are used isolators are used circuit breakers are used ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (22-07-2015) Which of the following award was not awarded to late Dr. Abdul Kalam? Veer Chakra Bharat Ratna Padma Vibhushan Padma Bhusan Veer Chakra Bharat Ratna Padma Vibhushan Padma Bhusan ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (22-07-2015) The Y bus matrix is a sparse matrix because … no of lines are less Y primitive is a sparse matrix bus incidence matrix is a sparse matrix lines are connected to less no. of buses no of lines are less Y primitive is a sparse matrix bus incidence matrix is a sparse matrix lines are connected to less no. of buses ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (22-07-2015) In rotating electrical machines, the insulation temperature limit for class B type is 130˚C 150˚C 180˚C 105˚C 130˚C 150˚C 180˚C 105˚C ANSWER EXPLANATION DOWNLOAD EXAMIANS APP insulation Class and temperature limit(in ˚C) is given below:Y - 90A- 105E- 120B-130F-155H-180C- above 180
GETCO Exam Paper (22-07-2015) Hopkinson's test is the test to be carried out on induction motor with any DC motor two identical induction motors two identical DC motors induction motor with synchronous motor induction motor with any DC motor two identical induction motors two identical DC motors induction motor with synchronous motor ANSWER EXPLANATION DOWNLOAD EXAMIANS APP In hopkinson test known as regenerative testtwo identical machine coupledD.C shunt motorD.C shunt generatortemperature rise can be check under rated conditionlarge machine can be tested without drawing much power.
GETCO Exam Paper (22-07-2015) Calculate torque developed by the 3-phase, 5 HP, 4 pole induction motor runs at 1500 rpm 23.5 N-m 0 N-m 10 N-m 22 N-m 23.5 N-m 0 N-m 10 N-m 22 N-m ANSWER EXPLANATION DOWNLOAD EXAMIANS APP P = 2πTN/60 where N is speed in rpm
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