DGVCL Exam Paper (12-06-2016) Isolator in substation is open under _____ condition. Short circuit None of these Full load No load Short circuit None of these Full load No load ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Isolators do not have capacity to make or breake circuit when current flowing in circuit
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). Power generation Cogeneration Captive Power Plant None of these Power generation Cogeneration Captive Power Plant None of these ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (12-06-2016) A relay used for protection of motors against overload is : Thermal relay Impedance relay Buchholz's relay Electromagnetic attraction type Thermal relay Impedance relay Buchholz's relay Electromagnetic attraction type ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (12-06-2016) What will happen if the primary of a transformer is connected to DC supply? Transformer may start to smoke and burn No effect Transformer will operate with high efficiency Transformer will operate with low efficiency Transformer may start to smoke and burn No effect Transformer will operate with high efficiency Transformer will operate with low efficiency ANSWER EXPLANATION DOWNLOAD EXAMIANS APP transformer works on principle of faraday's law of electromagnetic induction. So if D.C supply use, no indction are produced and due to this E.M.F not induced in winding and transfer of electrical energy is not possible.
DGVCL Exam Paper (12-06-2016) The main advantage of AC over DC is: Conversion flexibility from one voltage level to other All of these AC can be easily converted into DC by using a rectifier AC is easy to maintain & can be easily distributed at long distances Conversion flexibility from one voltage level to other All of these AC can be easily converted into DC by using a rectifier AC is easy to maintain & can be easily distributed at long distances ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (12-06-2016) If the displayed system time and date is wrong, you can reset it using : Desk top Menu bar Task bar Control panel Desk top Menu bar Task bar Control panel ANSWER DOWNLOAD EXAMIANS APP
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