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Mcqs

Electronics & Electrical MCQs

Electronics & Electrical Engineering Questions and Answers

Our Electronics & Electrical Engineering Questions and Answers prepare an individual for competitive exams, entrance exams, various tests, and interviews. Questions have detailed problem descriptions and solutions with detailed explanations so that one can understand them easily. One should spend 1 hour daily for 5-6 months to learn and assimilate various Electronics & Electrical Engineering subjects comprehensively. Here are the benefits of our completely solved Electronics & Electrical Engineering questions and answers:

 

Electronics & Electrical Engineering Questions and Answers – Interview Preparations

One can practice these Electronics & Electrical Engineering interview questions and answer them regularly to prepare for campus/off-campus interviews, pool-campus interviews, walk-in interviews, and various company interviews in Electronics & Electrical Engineering topics. These fully solved interview questions are applicable to all – be it college students, freshers, or experienced people. They can enhance their knowledge by regular practice which will help them crack any technical interview easily, thereby ensuring a good placement and career growth.

 

Electronics & Electrical Engineering Questions and Answers – Entrance & Competitive Exams

One can practice these Electronics & Electrical Engineering questions and answer regularly to prepare for various competitive & entrance exams as well as various tests & contests in colleges. Aspiring students and working professionals can learn and practice our fully solved Electronics & Electrical Engineering questions along with examples and detailed explanations in various subjects. Here’s a partial list of entrance exams and/or competitive exams for which one can practice these Electronics & Electrical Engineering questions: GATE, GRE, IAS, IES, PSC Exams, and many others online/Offline Tests/Contests. One can also practice these questions for Department Tests/Exams for UG/PG courses, Credit scores, and PhD Qualifier in US Universities.

Latest Popular
Q:

_________ can be used as a single phase static ac switch.

A) Diode B) SCR
C) DIAC D) TRAIC
 
Answer & Explanation Answer: D) TRAIC

Explanation: SCR cannot be used, as it is unidirectional. Diode isn’t a switch nor is the DIAC.

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Category: Electronics & Electrical MCQs
Sub Category: Power Electronics Mcqs

5424
Q:

For a transformer with primary turns 400, secondary turns 100, if 20A current is flowing through primary, we will get ___________

A) 80A at secondary B) 5A at secondary
C) 800A at secondary D) 40A at secondary
 
Answer & Explanation Answer: A) 80A at secondary

Explanation: Current in the primary of the transformer will get modified in the transformer secondary, according to the number of turns, in inverse proportion. Thus, turns are modified with 1/4 times the primary, we’ll get 4 times higher current at secondary.

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Category: Electronics & Electrical MCQs
Sub Category: Transformer Mcqs

3952
Q:

For a transformer with primary turns 100, secondary turns 400, if 200 V is applied at primary we will get ___________

A) 80 V at secondary B) 800 V at secondary
C) 1600 V at secondary D) 3200 V at secondary
 
Answer & Explanation Answer: B) 800 V at secondary

Explanation: Voltage in the primary of the transformer will get modified in the transformer secondary, according to the number of turns. Thus, turns are modified with 4 times the primary, we’ll get 4 times higher voltage at secondary.

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Category: Electronics & Electrical MCQs
Sub Category: Transformer Mcqs

2836
Q:

A three phase transformer has a name plate details of 30 MVA and voltage rating of 230Y kV/69? kV with a leakage reactance of 10% and the transformer connection via wye-delta. Taking a base of 230 kV on the high voltage side, turns ratio of the windings is ______

A) 2 B) 1.5
C) 6 D) 4
 
Answer & Explanation Answer: A) 2

Explanation: Not available for this question

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Category: Electronics & Electrical MCQs
Sub Category: Power System Mcqs

2752
Q:

Consider a peak rectifier fed by a 60-Hz sinusoid having a peak value Vp = 100 V. Let the load resistance R = 10 k?. Calculate the fraction of the cycle during which the diode is conducting

A) 1.06 % B) 2.12 %
C) 3.18% D) 4.24%
 
Answer & Explanation Answer: C) 3.18%

Explanation: w ?t ~ ?(2Vr/Vp)
? = ?(2 X 2/100)
? = 0.2 rad or 3.18% of the cycle

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Category: Electronics & Electrical MCQs
Sub Category: Electronic Devices & Circuits Mcqs

2739
Q:

In case of class A type commutation or load commutation with low value of R load the

A) L is connected across R B) L-C is connected across R
C) L is connected in series with R D) L-C is connected in series with R
 
Answer & Explanation Answer: D) L-C is connected in series with R

Explanation: In case of Class A commutation the requirement is that the circuit should be an under-damped RLC circuit.

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Category: Electronics & Electrical MCQs
Sub Category: Power Electronics Mcqs

2492
Q:

A 200 bus power system has 160 PQ bus. For achieving a load flow solution by N-R in polar coordinates, the minimum number of simultaneous equation to be solved is ___________

A) 359 B) 329
C) 360 D) 320
 
Answer & Explanation Answer: A) 359

Explanation: Total buses = 200
PQ buses = 160
PV buses = 200-160 = 40
Slack bus = 1
Total number of equation = (40-1)*1 + (160*2) = 359.

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Category: Electronics & Electrical MCQs
Sub Category: Power System Mcqs

2279
Q:

A three phase alternator can supply a maximum of 5000 KVA at 66 kV. The machine has internal resistance of 6%. The reactance per phase of the limiting reactor if the steady apparent power on the short circuit do not exceed 5 times full load is ____________

A) 1.22 ? B) 2.44 ?
C) 5 ? D) 1.84 ?
 
Answer & Explanation Answer: A) 1.22 ?

Explanation: Not available for this question

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Category: Electronics & Electrical MCQs
Sub Category: Power System Mcqs

2147