GETCO Exam Paper (22-07-2015) What is the synonyms of 'Pragmatic'? Uncertain Practical Magnetic Arrogant Uncertain Practical Magnetic Arrogant ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (22-07-2015) The PU impedance of a 1089 MVA, 33 kV generator is 1, the ohmic value of its impedance is: 100 0.5 1 10 100 0.5 1 10 ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (22-07-2015) I _____ tennis every Sunday morning am playing play playing am play am playing play playing am play ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (22-07-2015) Which of the following breaking method save energy? plugging resistor breaking regenerative breaking dynamic breaking plugging resistor breaking regenerative breaking dynamic breaking ANSWER EXPLANATION DOWNLOAD EXAMIANS APP three types of electric breaking:Regenerative breaking( leads to economic and energy consevation)pugging (more efficient method of breaking)rheostatic breaking
GETCO Exam Paper (22-07-2015) In synchronous motor, V-curve is a graph of Armature current Vs Field current Armature current Vs power factor Armature current Vs reactive power Armature current Vs active power Armature current Vs Field current Armature current Vs power factor Armature current Vs reactive power Armature current Vs active power ANSWER EXPLANATION DOWNLOAD EXAMIANS APP v curve: armature current → field currentInverted V curve: power factor → field current
GETCO Exam Paper (22-07-2015) A transformer has negative voltage regulation when its load PF is unity lagging leading zero unity lagging leading zero ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Voltage regulation = ((no load voltage)-(full load voltage)/(no load voltage))VR at leading PF = ((I*R*cosφ)-(I*X*sinφ))/VVR at lagging PF = ((I*R*cosφ)+(I*X*sinφ))/V
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