GETCO Exam Paper (22-07-2015) For selecting low voltage cable which of the following factors is not important? current carrying capacity permissible voltage drop voltage grade short circuit current rating current carrying capacity permissible voltage drop voltage grade short circuit current rating ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (22-07-2015) Current chopping phenomenon is related to asymmetrical current capacitance switching resistance switching small inductive current asymmetrical current capacitance switching resistance switching small inductive current ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (22-07-2015) The RMS value of the voltage u(t) = 3 + 4 cos(3t) is 7 4.12 3 + 2(1.41) 5 7 4.12 3 + 2(1.41) 5 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP if voltage is given by,v(t) = V₀ + V₁ cos(3t) + V₂ cos(5t)+ …RMS value is given by,√( V₀² + (V₁/√2)² + (V₂/√2)² + …)
GETCO Exam Paper (22-07-2015) Fuel cell for power generation have drawback of _____ Low life span Synchronization problems Very high development costs Noise, pollution and maintenance problems Low life span Synchronization problems Very high development costs Noise, pollution and maintenance problems ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (22-07-2015) In rotating electrical machines, the insulation temperature limit for class B type is 150˚C 105˚C 130˚C 180˚C 150˚C 105˚C 130˚C 180˚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) An over-current relay of current rating 5 A and setting 150% is connected to a 200/5 A CT. Then the relay to pickup, the line current required is 300 200 100 150 300 200 100 150 ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS