The open-loop transfer function of a unity feedback control system is  The closed loop transfer function will have poles at

1.  -2, -2

2.  -2, -1

3.  -2,±j

4.   -2, 2

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4
Correct Answer :

-2, -2



Explanation :
No Explanation available for this question

The basic memory cell of dynamic RAM consist of

1.  A capacitance

2.  A transistor

3.  A flip-flop

4.  A transistor acting as a capacitor

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4
Correct Answer :

A transistor acting as a capacitor


Explanation :
No Explanation available for this question

A periodic rectangular signal, X(t) has the wave from shown in figure below. Frequency of the fifth harmonic of its spectrum is

1.  40 Hz

2.  200 Hz

3.   250 Hz

4.   1250 Hz

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4
Correct Answer :

1250 Hz


Explanation :
No Explanation available for this question

Which of the following use least power

1.  TTL

2.  ECL

3.  CMOS

4.  All use same power

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4
Correct Answer :

CMOS


Explanation :
No Explanation available for this question

PROMs are used to save

1.  Bulk information

2.  Sequential information

3.  Information to be accessed rarely

4.  Relatively permanent information

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4
Correct Answer :

Relatively permanent information


Explanation :
No Explanation available for this question

In the circuit shown in figure below, X is an element which always absorbs power. During a particular operation, it sets up a current of 1 amp in the direction shown and absorbs a power Px. it is possible that X can absorb the same power Px for another current I, the value of this currents is

1.  (3-√14)amps

2.   (3+√14)amps

3.  5 amps

4.   None of these

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4
Correct Answer :

5 amps


Explanation :
No Explanation available for this question

The state representation of a second order system is 1= --x1+µ x2 = x1-2x2+µ Consider the following statements regarding the above system: 1. The system is completely state controllable 2. If x1 is the output, then the system is completely output controllable 3. If x2 is the output, then the system is completely output controllable. Of these statements:

1.   1, 2 and 3 correct

2.  1 and 2 are correct

3.  2 and 3 are correct

4.   1 and 3 are correct

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4
Correct Answer :

2 and 3 are correct


Explanation :
No Explanation available for this question

A Water at home is switched on to the a. c. mains supplying power at (230 V/50) Hz. The frequency of instantaneous power consumed by the boiler is

1.  0 Hz

2.  50 Hz

3.  100 Hz

4.  150 Hz

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4
Correct Answer :

100 Hz


Explanation :
No Explanation available for this question

In the series RC circuit shown in figure below, the voltage across C starts increasing when the d. c. source is switched on. The rate of increase of voltage across C at the instant just after the switch is closed (i. e. at t= 0+), will be

1.  Zero

2.   Infinity

3.  RC

4.  1/ RC

View Answer  
4
Correct Answer :

1/ RC


Explanation :
No Explanation available for this question

For the logic circuit shown in the figure, the output Y is given by For the logic circuit shown in the figure, the output Y is given by

1.  A . B

2.  

3.  

4.  

View Answer  
4
Correct Answer :


Explanation :
No Explanation available for this question
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