ISRO Scientist or Engineer Electrical 2018

Instructions

For the following questions answer them individually

ISRO Scientist or Engineer Electrical 2018 - Question 61


How many numbers of half adders are required for m-bit numbers?

ISRO Scientist or Engineer Electrical 2018 - Question 62


A Mod-6 counter is realized using 3 Nos. of flip-flops. The counter will skip

ISRO Scientist or Engineer Electrical 2018 - Question 63


An amplifier with negative feedback has overall gain of 100. The percentage change in gain with feedback and without feedback is 3% and 18% respectively. What is the feedback factor?

ISRO Scientist or Engineer Electrical 2018 - Question 64


Two voltmeters with ranges of 0 to 100 V has sensitivities as 10 kΩ/V and 20 kΩ/V. What is the maximum voltage that can be measured when these voltmeters are connected in series?

ISRO Scientist or Engineer Electrical 2018 - Question 65


An ammeter with range 0 to 2 mA has internal resistance of 10 Ω. What is the value of shunt resistance in order to increase the range of ammeter to 100 A?

ISRO Scientist or Engineer Electrical 2018 - Question 66


In a Dynamometer type wattmeter if current coil and voltage coil connections are interchanged then

ISRO Scientist or Engineer Electrical 2018 - Question 67


In a linear system, an input of $$5 \sin \omega t$$ produces an output of $$10 \cos \omega t$$. The output corresponding to input $$10 \cos \omega t$$ will be equal to:

ISRO Scientist or Engineer Electrical 2018 - Question 68


In an induction motor $$r'_2$$ is the rotor resistance. What is the resistance representing mechanical output in the equivalent circuit of an induction motor as referred to stator side?

ISRO Scientist or Engineer Electrical 2018 - Question 69


The pressure coil of a dynamometer type wattmeter is

ISRO Scientist or Engineer Electrical 2018 - Question 70


What is the octal equivalent of Hexadecimal number CD.AB?

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