MGVCL Exam Paper (30-07-2021 Shift 1) Insulation Power Factor testing on an oil-filled transformer is not helpful in determining ___ Condition of paper insulation (change in watts losses) Turns ratio values Movement of the windings (change in capacitance) Whether the oil test indicates moisture Condition of paper insulation (change in watts losses) Turns ratio values Movement of the windings (change in capacitance) Whether the oil test indicates moisture ANSWER EXPLANATION DOWNLOAD EXAMIANS APP A form of AC testing that applies voltage and measures the leakage/loss current of electrical insulation.It is a type of insulation testing used to evaluate the integrity of electrical insulation.
MGVCL Exam Paper (30-07-2021 Shift 1) Murray loop test is performed on a faulty cable 300 m long. At balance, the resistance connected to the faulty core was set at 15 Ω and the resistance of the resistor connected to the sound core was 45 Ω. Calculate the distance of the fault point from the test end. 150 m 75 m 450 m 225 m 150 m 75 m 450 m 225 m ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Where,R2 is the resistance connected to the faulty core in ohmR2 is the resistance of the resistor connected to the sound core in ohmR1 Distance of fault location (Lx) = R2/(R1 + R2)*(2*L)= (15/60)*600= 150 m
MGVCL Exam Paper (30-07-2021 Shift 1) Fill in the blanks with suitable Article from the given alternatives.Bread is ___ predominant food prepared from a dough of flour and water the an No article a the an No article a ANSWER DOWNLOAD EXAMIANS APP
MGVCL Exam Paper (30-07-2021 Shift 1) A transformer designed for operation at 60 Hz supply is working at 50 Hz supply system without changing its voltage and current ratings. Compared to the full load efficiency at 60 Hz, the full load transformer efficiency at 50 Hz. increases marginally increases by 30% decreases marginally remains unaltered increases marginally increases by 30% decreases marginally remains unaltered ANSWER DOWNLOAD EXAMIANS APP
MGVCL Exam Paper (30-07-2021 Shift 1) Which of the following features of Microsoft Word automatically moves to the next line while reaching the end of current line? None of these Carriage return Word wrap Enter None of these Carriage return Word wrap Enter ANSWER DOWNLOAD EXAMIANS APP
MGVCL Exam Paper (30-07-2021 Shift 1) 1.મંગલ + આચરણ - મંગલાચરણ2. હરિ+ઇન્દ્ર - હરીન્દ્ર3.નર+ઈશ - નરેશ4. પ્રતિ+અક્ષ - પ્રતિક્ષઉપરોક્ત વર્ણવેલમાંથી કઈ સંધિ સાચી છે. 2,1 1,3 2,3, 1,4 2,1 1,3 2,3, 1,4 ANSWER DOWNLOAD EXAMIANS APP
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