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

341

What is the value of the total impedance (in ohms) of a tank circuit working at resonant frequency having a capacitance of 0.01 mF and an inductance of 0.01 mH?

342

For the figure shown below, the power consumed in the load is 345 W. What is the value of line current 'I' (in A)?

343

What will be the instantaneous value of the alternating current (in A) which is represented by i(t) = 20 sin(13t-20) A, when the value of t is 5?

344

Which type of fire extinguisher is to be used on electrical equipment or installation under fire?

345

Which of the following is NOT an advantage of PMMC type instruments?

346

Load factor of a power station is defined as the ratio of:

347

Which of the following is NOT correct about a star connected balanced 3-phase circuit?

348

The "All-day efficiency" of a distribution transformer primarily depends upon its:

349

Thevenin's equivalent voltage (Vth) is defined as the:

350

No load rotational losses in electrical machine consists of

351

50. An arc blow is a welding defect that is countered with the help of carrying?

352

A coil of resistance 10 ohms and inductance 10 mH is connected in a series with a 0.01 mF capacitor. Find the value of current (in A) at resonance, if the circuit is connected across 10 V supply.

353

Which of the following is the dimension of resistance?

354

What is the apparent power of a 3-phase star connected system having a line voltage of 250 V and a line current of 40 A and the phase difference between the voltage and current is 36.87 degrees?

355

Which of the following is the cause of a speed error in induction type energy meter?

356

The reverse bias characteristics of a semiconductor diode is shown in

357

The lens of the eyes focuses an image on the

358

The function of capacitor connected across the fluorescent lamp is

359

The maximum power developed by synchronous motor is not dependent on

360

The current in the circuit shown below is 4 A. Calculate the magnetic field intensity (in A-turns/m) in the core, if the winding has 50 turns.

Showing 341 – 360 of 423 MCQ Questions | Page 18 of 22

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