The direction of motion of the conductor, according to Fleming's right and rule is indicated by — Electrical Engineering MCQ

D. both fore finger and middle finger

Which of the following losses is together called iron losses? — Electrical Engineering MCQ

A. Eddy current loss and hysteresis loss

B. Eddy current loss and frictional loss

C. Hysteresis loss and copper loss

D. Hysteresis loss and frictional loss

Therefore, the active power consumed is zero. The circuit only consumes and returns reactive power. 15. The primary and secondary windings of an Auto transformer are : — Electrical Engineering MCQ

C. Both magnetically and electrically coupled

In repulsion motor direction of rotation of motor — Electrical Engineering MCQ

B. is the same as that of brush shift

A. is opposite to that of brush shift

C. is independent of brush shift

If the capacitor of a single-phase motor is short-circuited — Electrical Engineering MCQ

C. the motor will run in reverse direction

D. the motor will run in the same direction at reduced r.p.m.

For the transmission of same power — Electrical Engineering MCQ

B. AC line requires more copper than a DC line

A. DC line requires more copper than an AC line

C. Both AC as well as DC line need same copper

The phenomenon of Corona in overhead transmission lines is accompanied by: — Electrical Engineering MCQ

C. Power loss and radio interference

The transfer function of a system is defined as the ratio of Laplace transform of output to Laplace transform of input assuming: — Electrical Engineering MCQ

B. Initial conditions are infinite

C. Initial conditions are equal to 1

If the synchronous motor, properly synchronized to the supply is running on no load and is having negligible loss then — Electrical Engineering MCQ

B. the stator current will be zero

A. the stator current will be very small

C. the stator current will be very high

D. the back e.m.f. will be more than the supply voltage

The function of the choke coil in a standard fluorescent tube light circuit is to: — Electrical Engineering MCQ

A. Provide a high starting voltage kick and limit the running current

B. Improve the power factor of the circuit

C. Eliminate radio interference

D. Convert AC supply to DC supply

Top Electrical Engg MCQ - 500+ MCQ

401

The heat generated in the transformer is dissipated mainly by

402

A 40kVA transformer has a core loss of 450 W and total loss of 800 W. Find the copper loss for Maximum efficiency.

403

Dummy coils in a DC generator are provided to:

404

Light is produced in electric discharge lamps by ____.

405

The efficiency of a 100 kVA transformer is 0.98 at full as well as half load. For this transformer at full load the copper loss :

406

Low frequency supply is necessary for direct core type induction furnaces because

407

The synchronous impedance method used to find the voltage regulation of an alternator is also known as the:

408

Name the generating station where electrical energy is generated through steam.

409

Stability of a system is not affected by ____.

410

In a 3-phase induction motor, the three-phase currents ia, ib and ic, each of equal magnitude, but differing in phase by

411

What would be the total loss of the 2kVa transformer corresponding to maximum efficient be, provided the transformer has iron loss of 150W and full-load copper loss of 250W?

412

If the centrifugal switch of a single-phase resistance split induction motor does not open after starting of motor, the motor

413

Find the value of the supply voltage (in V) for the circuit shown in the figure below.

414

Which one of the following represents the time constant of a series R-C circuit?

415

To eliminate the crossover distortion, the transistors are given at their bases

416

The highest voltage transmission line starting from generating point is called …….

417

A 60 A, 220 V energy meter makes 51 revolutions in 35 seconds on full load test. Calculate the percentage error (in %) if meter constant is 420 rev/kWh.

418

Two coils of self inductance 3 H and 5 H are connected in a series-opposing each other. What is the equivalent inductance (in H) of the circuit, if the co-efficient of coupling between the coils is 0.6?

419

Maxwell's inductance-capacitance bridge is used for the measurement of:

420

The slip of an induction motor at standstill is:

Showing 401 – 420 of 423 MCQ Questions | Page 21 of 22

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