Electrical Engineering Mcqs

Electrical Engineering MCQs A zener diode is employed as Correct answer: 3. A Voltage Regulator

Electrical Engineering MCQs When the loads are perfectly balanced in a three-phase power system the neutral current is Correct answer: 4. Zero

Induction Motor MCQs Part 19 At starting of double squirrel cage induction motor At starting of double squirrel cage induction motor: Correct answer: 3. Outer cage winding has good power factor A 3 phase, 6 pole induction motor is connected to 25 Hz supply and at full-load, the rotor EMF makes 120 complete cycles in … Read more

Electrical Engineering MCQs on Transformer Part 32 – Transformers Multiple Choice Questions The iron losses and full load Cu losses in a 100 kVA transformer are 400 and 1000 W respectively. The efficiency of transformer at full load at 0.85 PF lagging will be The iron losses and full load Cu losses in a 100 kVA transformer … Read more

The hole in a semiconductor is defined as Correct answer: 4. The incomplete part of an electron pair bond

The pn junction acts as a Correct answer: 3. Unidirectional switch

The most commonly used semiconductor material is Correct answer: 3. Silicon

Number of valence electrons in a pentavalent impurity are Correct answer: 3. 5

The random motion of holes and free electrons due to thermal agitation is known as Correct answer: 1. Diffusion

Electrical Engineering MCQs on Op Amp – Operational Amplifier MCQs For an OP-amp with negative feedback, the output is For an OP-amp with negative feedback, the output is: Correct answer: 2. Fed back to the inverting input Hysteresis is desirable in Schmitt-trigger since Hysteresis is desirable in Schmitt-trigger since Correct answer: 1. Devices in the circuit should … Read more