Electrical Engineering MCQ Question Papers: Campus Placement

Subject: Network Analysis 4

**Part 4: List for questions and answers of Network Analysis**

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**Q1. The strength of current in 1 H inductor changes at rate of 1 A / sec. Find the voltage ****across it?**

**a) 2 V**

**b) 1 V**

**c) 0.5 V**

**d) None of these**

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**Q2. In foster 1 form 1st element is**

**a) Capacitor**

**b) Inductor**

**c) Both**

**d) None**

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**Q3. In 2 port network Z12 = Z21 indicates which property**

**a) Unilateral**

**b) Bilateral**

**c) Linear**

**d) Non linear**

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**Q4. the coils having self inductor of 10 mH and 15 mH have an effective inductor of 40 mH , ****when connected in series aiding. What will be the equivalent inductor if we connect them in ****series opposing**

**a) 20 mH**

**b) 5 mH**

**c) 0 mH**

**d) 10 mH**

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**Q5. In an AC circuit, containing pure inductance, the voltage applied is 120 V, 50 Hz while the ****current is 10 A. Find the value of inductance**

**a) 35 mH**

**b) 34 mH**

**c) 30 mH**

**d) 38 mH**

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**Q6. A coil with negligible resistance has 50 V across it with 10 mA. The inductive reactance is**

**a) 50 ohms**

**b) 500 ohms**

**c) 1000 ohms**

**d) 5000 ohms **

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**Q7. Under resonance condition the power factor of a system is**

**a) Unity**

**b) Lagging**

**c) Leading**

**d) Any of the above**

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**Q8. Reactive power drawn by a pure resistor is**

**a) 0**

**b) Minimum**

**c) Maximum**

**d) None of the above**

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**Q9. The time required for a pulse to change from 10 % to 90 % of its maximum value is ****known as**

**a) Decay time**

**b) Rise time**

**c) Run time**

**d) Fall time**

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**Q10. Fall time is the time required for a pulse to decrease from 90 to ________% if its ****maximum values**

**a) 5**

**b) 10**

**c) 15**

**d) 20**

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**Q11. An electrical motor has rating of 10 MVA at 0.8 lag, represented as series RL circuit at a ****50 MVA base. Find the impedance value?**

**a) (2+j4) pu**

**b) (4+j3) pu**

**c) (3+j4) pu**

**d) (4+j2) pu**

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**Q12. A coil of negligible resistance has an induction of 100 mH. The current passing through ****the coil changes from 2 A to 4 A at a uniform rate in 0.1 sec the voltage across the coil ****during this time would be _____V**

**a) 2**

**b) 8**

**c) 36**

**d) 50 **

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**Q13. What is represented by the hypotenuse of impedance triangle?**

**a) Impedance drop**

**b) Resistance drop**

**c) Reactance drop**

**d) Apparent power**

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**Q14. The phase angle difference between current and voltage is 90 degree, the power will ****be**

**a) Minimum**

**b) Maximum**

**c) Zero**

**d) VI**

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**Q15. Kirchhoffs laws are valid for**

**a) Linear circuit only**

**b) Passive time invariant circuits**

**c) Non-linear circuits only**

**d) Both linear and non-linear circuits**

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**Q16. An electrical circuit with 10 branches and 7 nodes will have**

**a) 10 loop equations**

**b) 7 loop equations**

**c) 3 loop equations**

**d) 4 loop equations**

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**Q17. In active filter which element is absent?**

**a) Inductor**

**b) Capacitor**

**c) Both of above**

**d) Resistor**

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**Q18. Advantage of active filter is**

**a) Do not offer gain**

**b) Easy to tune**

**c) Both of above**

**d) Derive high impedance load **

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**Q19. Disadvantages of constant k type filter**

**a) Characteristic impedance unchanged in pass band**

**b) Attenuation does not ncrease rapidly beyond cut off frequency**

**c) Both A and B**

**d) None of these**

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**Q20. In Cauer 1st form last element in the network is**

**a) Lseries**

**b) Cseries**

**c) Lshunt**

**d) Cshunt **

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**Part 4: List for questions and answers of Network Analysis**

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**Q1. Answer: b**

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**Q2. Answer: a**

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**Q3. Answer: b**

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**Q4. Answer: d**

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**Q5. Answer: d**

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**Q6. Answer: d**

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**Q7. Answer: a**

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**Q8. Answer: a**

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**Q9. Answer: b**

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**Q10. Answer: b**

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**Q11. Answer: b**

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**Q12. Answer: a**

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**Q13. Answer: a**

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**Q14. Answer: c**

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**Q15. Answer: a**

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**Q16. Answer: d**

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**Q17. Answer: a**

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**Q18. Answer: b**

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**Q19. Answer: b**

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**Q20. Answer: a**