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

1.  zero

2.  resistive

3.  inductive

4.   capacitive

4

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

4

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

4

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

4

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

4

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

4

24

Explanation :
No Explanation available for this question

# Which one of the following system is completely state controllable

1.

2.

3.

4.

4

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

4

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

4

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

4