DGVCL Exam Paper (12-06-2016) Core type transformers are popular in _____ None of these All of these High voltage applications Low voltage applications None of these All of these High voltage applications Low voltage applications ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (12-06-2016) What would happen if a power transformer designed for operation on 50 Hz (frequency) were connected to a 500 Hz (frequency) source of the same voltage: No effect Eddy Current and Hysteresis losses will be excessive Current will be too much high Transformer may start to smoke and burn No effect Eddy Current and Hysteresis losses will be excessive Current will be too much high Transformer may start to smoke and burn ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Core loss of transformer = Hysteresis loss + eddy current lossHysteresis loss prpotional to feddy current loss prpotional to f².
DGVCL Exam Paper (12-06-2016) As per Electricity Act, _____ means a process which simultaneously produces two or more forms of useful energy (including electricity). None of these Captive Power Plant Cogeneration Power generation None of these Captive Power Plant Cogeneration Power generation ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (12-06-2016) Which of the following circuit breakers has high reliability & minimum maintenance? Air blast CB Sulphur hexafluoride CB Vacuum CB Bulk oil type CB Air blast CB Sulphur hexafluoride CB Vacuum CB Bulk oil type CB ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (12-06-2016) The main objectives in framing tariff are: Tariffs can be modified from time to time All of these The tariff must be equitable amongst different consumers The consumers must readily understand the tariffs Tariffs can be modified from time to time All of these The tariff must be equitable amongst different consumers The consumers must readily understand the tariffs 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 Decrease the secondary current Have no effect on the secondary current Increase the primary current Increase the secondary current Decrease the secondary current Have no effect on the secondary current Increase the primary current ANSWER EXPLANATION DOWNLOAD EXAMIANS APP transformer ratio K : N₂/N₁=V₂/V₁=I₁/I₂
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