Top Electrical Engg MCQ - 500+ MCQ
261
An three induction motor is similar to
262
81. A Chopper in power electronics is primarily used to convert:
263
Which one of the following generators is used for charging batteries?
264
What will be value of magnetic field (in mT) at the centre of a 8 m long coil, when the coil has 260 turns and carrying a current of 4 A?
265
When evaluating a power system, a Diversity Factor of greater than 1 means that:
266
If a live wire comes in contact with metal casing, excess current moves to ____.
267
The type of oil used in transformer is
268
The input resistance (in Ω) of a common emitter transistor, circuit is of the order of
269
The synchronous motor is not inherently self-starting because
270
For a dc machine shunt resistance and armature resistance values are
271
In control systems, the application of negative feedback generally:
272
Norton's theorem replaces a complex linear circuit with an equivalent circuit consisting of:
273
The depletion region in a PN junction diode contains:
274
Which insulator is used on dead ends of medium voltage line?
275
A Zener diode is primarily used for:
276
If admittance Y = a + jb, then a=?
277
What is the main design criterion for distributors in an electrical power transmission system?
278
Isolators operate under which condition
279
The advantage of stationary armature of a synchronous machine is :
280
Is it possible to have current in a transmission line, under no-load conditions?