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Which type of moter is used in trains, what is the ratting of supply used explain Working principal?
2 7625The formular of how to calculate a cross sectional cable to feed an electric motor. Examle: 15KW, 26.1A, 415V. Calculate the cable size in mm2
Sona,
3 7891Can you explain the phase displacement between primary and secondary of power transformer of any vector group(for ex)?
1 322269,70 or 71 in box-1 ; 18,19, or 20 in box-2 ; 60,61, or 62 in box-3 get -3 , -4 , or -5 in box-2 in 3 steps.Use all operations i.e. ( +,-,*,/ ).
2376t is the total number of sun glass sold which has c number of cartons and l loose glasses. Each cartons contains 27 glasses. If each sale of carton, 3rs discount is awarded on each glass. Each glass cost rs9. Box1- total number of glass sold box2- Cost of each glass box3-discount on each glass using any operation in 6 steps, bring total discount and total selling price in box2 and box3 respectively.
4779xx7 and xxx are two numbers and we have to mulitply them xx7 xxx ______ xxxx xxxxxx ______ 3xxx17 find all x's
1 5011box 1 contain odd value X or Y the box 2 =X i.e 7 or 12 box 3= Y has value 19 if X is 7 or 31 if x is 12 get even value X or Y Use any operator steps allowed 3
2831If an Instrument has 550 ohm internal resistance and the cable used for that instrument is 0.5 ohm per meter resistance. If the voltage is 12volt.How much length cable can be used? Please tell me its Calculation formula.
MOL,
5 9744I have two power supply.a)govt. power b)Captive power.3 phase load connected inside factory.when source change govt. source to captive some motor rotate reverse. Is phase sequence changes when if off & on?If I off generator & on it again is it possible to get changed phase sequence??
ABB,
4 6695if i have one capacitor=80 micro farad which correct the unity power factor,but i want to make capacitor bank who correct the power factor.so,how to split this capacitance value?
2 4385
How can we calculate cable size in Low voltage & high voltage
Explain a situation in which you handled a customer?s questions or problems?
What is CCM in Electrical ? where can we use this material?
3. A vane 12.5 cm long, 8.8 cm dia was pressed into a soft clay at the bottom of borehole. Torque was applied and the value at failure was 55 N-m. find the shear strength of the clay on a horizontal plane.
some time we open engine breaker 8.0 MW load but plant not trip. and another time engine open 4.0 MW load engine trip why? individually engine breaker open & individually emergency stop why difference?
What is meant by impedance? difference between high & low impedance ?
Why tampering to be done?
In wave guides tem wave propagation is not exit, give the physical interpretation?
Explain the difference between power amplifier and voltage amplifier?
describe the timing circuit of 8085 mpu?
Give some example of fault limiting devices?
Any idea of BSNL, JTO paper?
What is Isolation Efficiency?
What is an effective means of removing silicon from aluminum?
Sir, I have applied for the of Jr.engineer(Electrical & Electronics) & ASST. LOCO PILOT at ALL RRB BOARDS. please send me all RRB Boards solved papers in the year of 2001 tO till date. i requested send me the papers to my id as soon as possible (jet_0991@yahoo.com). (This is very urgent) Thank You,
