The input impedance of a S. C. loss-less line of length λ/8 is

1.  zero

2.  resistive

3.  inductive

4.   capacitive

View Answer  
4
Correct Answer :

inductive


Explanation :
No Explanation available for this question

In a 4-bit weighted resistor D/A converter, the resistor value corresponding to LSB is 32-k ohm. The resistor value corresponding to MSB will be

1.  32 k-ohm

2.  16 k-ohm

3.  8 k-ohm

4.  4 k-ohm

View Answer  
4
Correct Answer :

16 k-ohm


Explanation :
No Explanation available for this question

At FM signal with modulation index m is passed through a frequency tripler. The modulation index of the output signal will be

1.  mf

2.  3 mf

3.  9 mf

4.  27 mf

View Answer  
4
Correct Answer :

9 mf


Explanation :
No Explanation available for this question

The most useful modulation technique for high fidelity audio broadcasting on radio in current practice is

1.  amplitude modulation

2.  frequency modulation

3.  pulse amplitude modulation

4.  pulse code modulation

View Answer  
4
Correct Answer :

frequency modulation


Explanation :
No Explanation available for this question

Hamming codes are used for error detection and correction. If the minimum Hamming distance is m, then the number of errors correctable is

1.  equal to m

2.  less than m/2

3.  equal to 2m

4.  greater than m

View Answer  
4
Correct Answer :

greater than m


Explanation :
No Explanation available for this question

If the memory chip size is 256 × 1 bits, then the number of chips required to make up 1 K(1024) bytes of memory is

1.  32

2.  24

3.  12

4.  8

View Answer  
4
Correct Answer :

24


Explanation :
No Explanation available for this question

Which one of the following system is completely state controllable

1.  

2.  

3.  

4.  

View Answer  
4
Correct Answer :


Explanation :
No Explanation available for this question

The decimal equivalent of the hexadecimal number (3 E 8)16 is

1.  1000

2.  982

3.  768

4.  323

View Answer  
4
Correct Answer :

1000


Explanation :
No Explanation available for this question

In amplitude modulated signal, if the total transmitted power is P, then the carrier power will be

1.  2/3 P

2.  1/2 P

3.  1/3 P

4.   1/4 P

View Answer  
4
Correct Answer :

2/3 P


Explanation :
No Explanation available for this question

The C expression + + i is equivalent to writing

1.  i= 1 +2

2.   i = i +1

3.  i = i +i

4.  i = i + i + i

View Answer  
4
Correct Answer :

i= 1 +2


Explanation :
No Explanation available for this question
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