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Main advantage of auto transformer over two windings transformer is that A it needs no cooling B it uses only one winding C core losses are reduced D it has simple construction
2954Material commonly used in making transformer core is A cast iron B mild steel C high silicom steel D high carbon steel
1 3557If we impress a dc voltage of 230 V on an unloaded 230 V, 50 Hz transformer it wi A give high secondary voltage B burn out C give secondary voltage as per K D none of these
2006If we impress a dc voltage of 230 V on an unloaded 230 V, 50 Hz transformer it wi A give high secondary voltage B burn out C give secondary voltage as per K D none of these
1 3276Short circuit voltage of a transformer mainly depend on A ohmic resistance of primary B ohmic resistance of secondary C magnitude of leakage flux D cross sectional area of core
1 9616Transfer of electric power from primary to secondary in a transformer takes place A electrically B magnetically C electro-magnetically D conductively
2 7936Resistance of low voltage side of transformer compared to high voltage side is A less B equal C more D depens on design
1 5705As load in a transformer increases, mutual flux linkage in core= A increases B decreases C not change D first increase then decrease
2 8372Are we do it in single transformer with dual primary as 11 KV and 33 KV and constant output as 415 Volts?.
1 3213In 3 phase induction motor even with low Voltage it reaches nearly it's rated speed why? (for example instead of 400V it reaches with 250V)
2 4735
In cable sizing calculation (determining the max route length of cable) why we choose the shortest length between cable length of full load current Iflc & starting current Istart?
how to select overload-relay for perticular motor 1.for D.O.L. starter 2. for Star-delta starter ????
what is thermo coupler and how it works
For high voltage applications will you prefer mosfet or igbt?
what questions will be asked for 11/33KV licence interview APSEB hyderabad. Can any one share question and answers.
Define angular momentum?
what is the difference between unarmoured & Flexible cable? How to identified?
What happens if i apply 500V to 440V rotary Switch ?
generally how much percentage is required to sit in exam of PSU'S for mechanical engg. candidate (general category)
how can i improve the power factor in domestic (230v)
why the pic micro controller have internal eeprom?But in 8051 have only rom and ram.
Hi my name is Binyam and I'm a 7th grader at Mayfield Woods Middle school. I decided to research civil engineering as my career and i need to know a few thing about your profession. What is your daily routine? What are some advantages and things you like about your job? What are some disadvantages What is the hardest thing you have done? What education have you gone through to become a civil engineer? How long is your work day? What is your work environment like? What is your salary? What made you want to become an engineer? What tools do you you use? Thank you for answering my questions
gsm features
How to calculate the fuel consumption for 600kva DG genset which connecting with 25%load?
why is the diffusion technique of formation of resistor most widely used?
