2-EC-IES-Objective paper-II-2013

Directions each of next twenty items consists of two

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Directions:- Each of next twenty items consists of two statements, one labeled as the statement(I) and other as Statement (II). You are to examine these two statements carefully and select the answers to these items using the codes given below Codes (A) Both Statement (I) and Statement (II) are individually true and Statement (II) is the correct explanation of Statement (I) (B) Both Statement (I) and Statement (II) are individually true but Statement (II) is NOT the correct explanation of Statement (I) (C) Statement (I) is true but Statement (II) is false (D) Statement (I) is false but Statement (II) is true
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EC- Objective Paper-II IES-2013 cusp India’s No.1 institute for GATE Training cusp 1 Lakh+ Students trained till date cusp 65+ Centers across India 348 20. Statement (I): An ideal OP AMP when used to make an inverting amplifier has both input terminals at the same potential. Statement (II): CMRR of the OP AMP is low. 21. Statement (I): A monostable multi-vibrator, when switched on remains in a quasi stable state. Statement (II): Quasi stable state duration is decided by charging time of capacitor. 22. Statement (I): Emitter-Coupled Logic (ECL) family is designed for high speed. Statement (II): In this logic family, transistor does not operate fully in saturation or cut- off zones. 23. Statement (I): Switching speed of ECL logic family is very high. Statement (II): The transistor used in the family remains unsaturated. 24. Statement (I): In a bipolar junction transistor increase in the collector voltage increases the base width. Statement (II): Increase in the collector voltage increases the space-charge-width at the output junction diode. 25. Statement (I): A flip-flop is a bistable multivibrator. Statement (II): A flip-flop remains in one stable state indefinitely until it is directed by an input signal to switch over to the other stable state. 26. Statement (I): Associative memory is fast memory. Statement (II): Associative memory searches by content and not by accessing of address. 27. Statement (I): PIN photodiodes are preferred to PN photo-diodes. Statement (II): PIN photodiode is a constant voltage generator at a given light level. 28. Statement (I): A derivative controller produces a control action for constant error only. Statement (II): The PD controller increases the damping ratio and reduces the peak overshoot. 29. Statement (I): Nyquist plot is the locus of ( ) GH j ω indicating the magnitude and phase angle on the ( ) GH j ω plane.
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