Electrical Engineering MCQ Question Papers: Campus Placement

Subject: Network Analysis 1

**Part 1: List for questions and answers of Network Analysis**

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**Q1. An RLC series circuit is under damped. To make it over damped, the value of R**

**a) Has to be increased**

**b) Has to be decreased**

**c) Has to be increased to infinity**

**d) Has to be reduced to zero**

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**Q2. Henry is equivalent to**

**a) Volts/Ampere**

**b) Weber/Volt**

**c) Weber/Ampere**

**d) Weber/Ampere2**

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**Q3. In a minimum function**

**a) The degree of numerator and denominator are equal**

**b) The degree of numerator and denominator are unequal**

**c) The degree of numerator is one more than degree of denominator**

**d) The degree of numerator is one less than degree of denominator**

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**Q4. For a transmission line open circuit and short circuit impedances are 20ohm and 5 ohm. ****Then characteristic impedance is**

**a) 100 ohm**

**b) 50 ohm**

**c) 25 ohm**

**d) 10 ohm**

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**Q5. The drift velocity of electrons is**

**a) Very small as compared to speed of light**

**b) Equal to speed of light**

**c) Almost equal to speed of light**

**d) Half the speed of light**

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**Q6. Wave A = 100 sin wt and wave B = 100 cos wt. Then**

**a) Rms values of the two waves are equal**

**b) Rms values of A is more than that of B**

**c) Rms values of A is less than that of B**

**d) Rms values of the two waves may or may not be equal **

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**Q7. A capacitor stores 0.15C at 5 V. Its capacitance is**

**a) 0.75 F**

**b) 0.75 uF**

**c) 0.03 F**

**d) 0.03 uF**

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**Q8. A 0.5 uF capacitor is connected across a 10 V battery. After a long time, the circuit ****current and voltage across capacitor will be**

**a) 0.5 A and 0 V**

**b) 0 A and 10 V**

**c) 20 A and 5 V**

**d) 0.05 A and 5 V**

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**Q9. The synthesis of minimum function was suggested by**

**a) O’Brune**

**b) R. Richards**

**c) Bott and Duffin**

**d) None of the above**

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**Q10 .Which of the following is correct for a driving point functions?**

**a) The real parts of all poles must be negative**

**b) The real parts of all poles and zeros must be negative**

**c) The real parts of all poles and zeros must be negative or zero**

**d) The real parts of all zeros must be negative**

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**Q11. In an RC series circuit R = 100 ohm and XC = 10 ohm. In this circuit**

**a) The current and voltage are in phase**

**b) The current leads the voltage by about 6 degree**

**c) The current leads the voltage by about 84 degree**

**d) The current lags the voltage by about 6 degree**

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**Q12. The impedance of an RC series circuit is 12 ohm at f= 50 Hz. At f= 200 Hz, the impedance ****will be**

**a) More than 12**

**b) Less than 3**

**c) More than 3 ohm but less than 12 ohm**

**d) More than 12 ohm but less than 24 ohm**

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**Q13. A current is flowing through a conductor with non-uniform area of cross-section. Then**

**a) Current will be different at different cross-sections**

**b) Current will be the same at all the cross-sections**

**c) Current will be different but current density will be same at all the cross-sections**

**d) Current will be the same but current density will be different at different crosssections**

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**Q14. The electrical energy required to heat a bucket of water to a certain temperature is 2 ****kWh. If heat losses, are 25%, the energy input is**

**a) 2.67 kWh**

**b) 3 kWh**

**c) 2.5 kWh**

**d) 3.5 kWh**

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**Q15. The current rating of a cable depends on**

**a) Length of cable**

**b) Diameter of cable**

**c) Both length and diameter of cable**

**d) None of the above**

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**Q16. In an ac circuit, the maximum and minimum values of power factor can be**

**a) 2 and 0**

**b) 1 and 0**

**c) 0 and -1**

**d) 1 and -1**

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**Q17. A two branch parallel circuit has a 20 ohm resistance and 1 H inductance in one branch ****and a 100 uF capacitor in the second branch. It is fed from 100 V ac supply, at resonance, ****the input impedance of the circuit is**

**a) 500 ohm**

**b) 50 ohm**

**c) 20 ohm**

**d) 5 ohm**

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**Q18. As compared to the number of network elements in Brune synthesis, the number of ****network elements Bott-and Duffin in realization is**

**a) More**

**b) Less**

**c) Equal**

**d) Any of the above **

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**Q19. A sinusoidal voltage has peak to peak value of 100 V. The rms value is**

**a) 50 V**

**b) 70.7 V**

**c) 35.35 V**

**d) 141.41 V**

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**Q20. A capacitor is needed for an ac circuit of 230 V, 50 Hz the peak voltage rating of the ****capacitor should be**

**a) 230 V**

**b) 0.5 x 230 V**

**c) 2 x 230V**

**d) 230/2V **

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**Part 1: List for questions and answers of Network Analysis**

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**Q1. Answer: a**

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**Q2. Answer: c**

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**Q3. Answer: a**

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**Q4. Answer: d**

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**Q5. Answer: a**

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**Q6. Answer: a**

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**Q7. Answer: c**

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**Q8. Answer: b**

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**Q9. Answer: a**

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**Q10. Answer: c**

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**Q11. Answer: b**

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**Q12. Answer: c**

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**Q13. Answer: d**

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**Q14. Answer: a**

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**Q15. Answer: b**

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**Q16. Answer: b**

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**Q17. Answer: a**

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**Q18. Answer: a**

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**Q19. Answer: c**

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**Q20. Answer: c**