DGVCL Exam Paper (12-06-2016) The kVA rating of Three-phase transformer with Voltage = 200 V and Current = 100 A will be : None of these 20 kVA 34.64 kVA 75 kVA None of these 20 kVA 34.64 kVA 75 kVA ANSWER EXPLANATION DOWNLOAD EXAMIANS APP For three phase,VA = √3 V IFor single phase, kVA = V I
DGVCL Exam Paper (12-06-2016) The relay operating speed depends upon The spring tension The rate of flux built up All of these Armature core air gap The spring tension The rate of flux built up All of these Armature core air gap ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (12-06-2016) Increasing the number of turns of wire on the secondary of a transformer will Increase the secondary current Increase the primary current Decrease the secondary current Have no effect on the secondary current Increase the secondary current Increase the primary current Decrease the secondary current Have no effect on the secondary current ANSWER EXPLANATION DOWNLOAD EXAMIANS APP transformer ratio K : N₂/N₁=V₂/V₁=I₁/I₂
DGVCL Exam Paper (12-06-2016) A 100-watt light bulb turned on for 8 hours uses : 800 Wh None of these 0.8 kWh 8 kWh 800 Wh None of these 0.8 kWh 8 kWh ANSWER EXPLANATION DOWNLOAD EXAMIANS APP In Solution 0.8 kWh and 800 Wh both options are given as answer as both are correct
DGVCL Exam Paper (12-06-2016) As per Electricity Act, _____ means any line which is used for carrying electricity for any purpose. None of these Transmission line Electric line All of these None of these Transmission line Electric line All of these ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (12-06-2016) Efficiency of a power transformer is of the order of : 1 0.25 0.98 0.5 1 0.25 0.98 0.5 ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS