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Slip at maximum torque depends on A rotor resistance and reactance B stator reactance C load current D stator resistance
1 2615Calculate torque developed by the 3-phase, 5 H.P., 4 pole induction motor runs at 1500 rpm A 23 N-m B 21 N-m C 10 N-m D 0 N-m
5211Induction generator has = A negative speed B negative slip C negative voltage D negative current
2 3916Magnetizing current for induction motor compared to transformer is= A equal B more C less D depends on load
1 2991Stator core loss of squirrel cage induction motor compared to rotor core loss is= A equal B more C less D depends on load
2 4524No load test of induction motor is carried out to compute= A stator resistance B rotor resistance C magnetizing reactance D rotor reactance
1 5224Short circuit test of induction motor is carried out to compute= A stator resistance B rotor resistance C magnetizing reactance D stator reactance
2 6428Auto transformer starter gives the same effect as star/delta strater if its turn ratio = A 0.5 B 0.67 C o.66 D 0.577
1 3831Rotor resistance starter is used to obtain= A increased starting torque B decrease starting current C decrease starting loss D increase efficiency
1 2792Plugging is a phenomenon to= A braking the motor B to accelerate the motor C to run IM as generator D to start the motor
3103During regenerative breaking= A rotating magnetic field is reversed B slip is positive C torque is positive D slip is negative
2135In which of the following case, the rotating magnetic field is reversed? A regenerative breaking B plugging C dynamic breaking D forward motoring
197829 Which of the following breaking method save energy? A regenerative breaking B plugging C dynamic breaking D none of above
1 3858Electromagnetic torque developed by the motor is compared to shaft torque. A less B same C depends on motor design D more
3 6357
i need previous entrence exam papers of nhpc.
what does mean of RCT and STR in diffrential CT?
How to calculate impedance volt in Transformer?
Which reactor requires no moderator ?
What is clock position of Transformer?what are the clock positions are there?and what is different of them?
What you understand by richter scale?
how to solved the crictical problems in d. g. set
What are the main faults of DC generators?
Which is first stress or strain?
What is difference between Piping Standard & Piping Specification ?
Name of the tables which is going to join two tables in querry ?
Q 1) 1 Mason and 2 LABOUR / _________CUM brick work Q 2) 1 Mason and 1 LABOUR / _________SQ FT Plaster work Q 3) 1 Carpenter & 2 Labour/_________SQ FT shuttering work Q 4) 100 SQ FT roof slab concreting ____________mason and labour required
what is the meaning of 0.5ohm Resistance
WHY WE USE {} AT THE STARTING OF C PROGRAM
Hi, I am Jose. I am an Mehcanical Engineer. I am planning to appear for BHEL ET exam.Can any one help me how to prepare fo this test? Is there any question paper pattern for this test?
