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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 2616Calculate 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
5212Induction generator has = A negative speed B negative slip C negative voltage D negative current
2 3917Magnetizing current for induction motor compared to transformer is= A equal B more C less D depends on load
1 2992Stator core loss of squirrel cage induction motor compared to rotor core loss is= A equal B more C less D depends on load
2 4525No load test of induction motor is carried out to compute= A stator resistance B rotor resistance C magnetizing reactance D rotor reactance
1 5225Short circuit test of induction motor is carried out to compute= A stator resistance B rotor resistance C magnetizing reactance D stator reactance
2 6430Auto 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
3104During 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
197929 Which of the following breaking method save energy? A regenerative breaking B plugging C dynamic breaking D none of above
1 3859Electromagnetic torque developed by the motor is compared to shaft torque. A less B same C depends on motor design D more
3 6358
What are the material used for inductance coil?
what is automatic voltage regulator?we can control the vlotage by using fuzzy controller in matlab?why we go for fuzzy?
Why an ordinary junction transistor is called bipolar?
Is pipe round because it provides the least area to volume ratio?
What are some common problems associated with dilute phase pneumatic conveying?
Spider cracks occur in beam bottom due to––
What is difference between safe PLC and normal PLC
How a conductivity sensor & analyzer work at boiler, whats the principle & science is beyond this,How conductivity sensor sence & convert signal & move toward analyzer & analyzer show reading in percent? also what is temperature compensate option in conductivity analyzer
Please define ohm’s law for a.c (alternating current)?
1. Design a counter which counts 0, 4, 8, 2, 6, and repeats using: 1.a using JK flip flops 1.b using T flip flops 1.c using D flip flops 2. Modify your design in question 1.a so that the circuit works according to the following function table X Y F 0 0 Clear 0 1 No Change 1 0 Parallel Loading 1 1 Count 3. Design a circuit that detects the pattern 010 in a serial input X considering: 3.a Overlapping 3.b No overlapping
Which type of immunoglobin level will increase when an individual is exposed to parasite?
State the difference between ac and dc voltage.
What is equivalent is 2004 cl 5
Crankcase oil mist detector
please anybody help me to find out the BHEL trainee Exam previous year questions papers . if u ve pls. send it to surekhared@gmail.com
