महाराष्ट्र अभियंता सेवा गट ब पूर्व परीक्षा २०१० Questions And Answers:
If the back emf in a d.c. motor vanishes suddenly, the motor will
The lamp that cannot sustain much voltage fluctuations is
A three-phase induction motor is fed from a balanced three-phase supply on the rotor side, short-circuiting the stator terminals. The speed of the rotating magnetic field is
The illumination at any point on a surface is directly proportional to the cosine of the angle between the normal at that point and direction of luminous flux. This statement is associated with
Annual estimated depreciation charges for a plant are heavy during early years in case of
Analogue Measuring Instruments connected to AC circuit indicate
In controlled rectifiers, the nature of the load current i.e. whether load current is continuous or discontinuous
The permissible variation of frequency in power system is
Minority carriers in p-type semiconductors are
large diversity factor of the load in a power system
A step-up chopper has Vs. as the source voltage and a as the duty cycle. The average output voltage for this chopper is given by
For a system having ZS >> ZL, which of the following relays is most suitable ?
A single-phase full bridge inverter can operate in load-commutation mode in case load consists of
Back to back HVDC is used to
Transient response in R-L-C series circuit with d.c. excitation is overdamped when
A 5 kVA transformer has iron loss 300 W and full load copper loss 400 W. The maximum efficiency of the transformer would occur when total loss is
Surge impedance of overhead line is of the order of
A voltage wave of 50 Hz, having an rms value of 415 V is expressed as
If the power consumed by a balanced system with delta connected resistances is 300 W, what will be the power consumed when the same are connected in star fashion ?
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