Top Electrical Engg MCQ - 500+ MCQ
361
Which of the following has the highest value of thermal conductivity?
362
What will be the capacity of four capacitors of equal capacity 'C', when connected in series?
363
What is the reason behind using a centrifugal switch in a single phase induction motor?
364
Hysteresis motors are suitable for ……..
365
The common material, which is used to make an HRC fuse is
366
Determine the capacitance (in mF) of a circuit, when the circuit is supplied with a 60 Hz frequency and the capacitive susceptence of the circuit is 0.5 Siemens.
367
What will be the value of current (in A) in a 40 cm long solenoid in free space, if it has 400 turns, 2 cm of diameter and produces a magnetic field of 4 mT at its center?
368
What will be the value of magnetic field intensity (in Amp-turns/m) of a 4 metre long coil, when the coil has 220 turns and carrying a current of 0.4 A?
369
Which of the following is a leading power factor system?
370
The starting torque of a single-phase induction motor is :
371
At absolute zero temperature (0 Kelvin), an intrinsic semiconductor behaves perfectly as:
372
88. An LVDT (Linear Variable Differential Transformer) is what type of transducer?
373
A Buchholz relay is used for the protection of:
374
What is the percentage voltage error of a potential transformer with system voltage of 11,000 V and having turns ratio of 100, if the measured secondary side voltage is 105 V?
375
The relative permeability of a diamagnetic material is:
376
For a three phase system, calculate the instantaneous voltage (in V) of phase Y, if the instantaneous voltages of other two phases are +70 V and -50 V respectively.
377
The main advantage of a synchronous motor over wound round induction motor
378
The function of a moderator in a nuclear power plant is to:
379
The sweep of ceiling fan is indicated by
380
Branch circuit must not feed more than ____ points.