# Four memory clips of 16 × 4 size have their address bases connected together. The system will be of size

1.  64 × 64

2.  16 × 16

3.  32 × 8

4.  256 × 1

4

16 × 16

Explanation :
No Explanation available for this question

# For block diagram shown in fig  (c(s))/(R(s)) is given by

1.

2.

3.

4.

4

Explanation :
No Explanation available for this question

# Coherent demodulation of FSK signal can be effected using

2.  band pass filters and envelope detector

3.  matched filter

4.  discriminator detection

4

matched filter

Explanation :
No Explanation available for this question

# A 4-bit synchronous counter uses flip=flops with propagation delay time of 25 ns each. The maximum possible time required for change of state will be

1.  25 ns

2.  50 ns

3.  75 ns

4.  100 ns

4

25 ns

Explanation :
No Explanation available for this question

# The number of roots of the equation 2s4+s3+3s2+5s+7=0 that lie in the right half of s plane is

1.   Zero

2.  One

3.   Two

4.  Three

4

Two

Explanation :
No Explanation available for this question

# Source encoding in a date communication system is done is order to

1.  enhance the information transmission rate

2.  reduce the transmission errors

3.  converse the transmitted power

4.   facilitate clock recovery in the receiver

4

reduce the transmission errors

Explanation :
No Explanation available for this question

# To dissimilar antennas having their maximum directivities equal

1.   must have their beam widths also equal

2.  cannot have their beam widths equal because they are dissimilar antennas

3.  may not necessarily have their maximum power gains equal

4.  must have their effective aperture areas (capture areas) also equal

4

may not necessarily have their maximum power gains equal

Explanation :
No Explanation available for this question

# In the figure shown X2X1Xo will be 1’s complement of A2 A1A0 if

1.  Y = 0

2.  Y = 1

3.  Y = A0 = A1 = A2

4.  Y = A0 = A1 = A2

4

Y = 0

Explanation :
No Explanation available for this question

# The beam width between first null of uniform linear array of N equally-spaced (element spacing = d), equally-excited antennas is determined by

1.  N alone and not by d

2.  d alone and not by N

3.  the ratio, (N/d)

4.  the product, (Nd)

4

the product, (Nd)

Explanation :
No Explanation available for this question

1.

2.

3.

4.

4