# The  asymptotic  Bode  plot  of  a  transfer  function  is  as  shown  in  the  figure.  The  transfer function G(s) corresponding to this Bode plot is

1.  1/((s + 1)(s + 20))

2.  1/(s(s + 1)(s + 20))

3.  100/(s(s + 1)(s + 20))

4.  100/(s(s + 1)(1 + 0.05s))

4

100/(s(s + 1)(1 + 0.05s))

Explanation :
No Explanation available for this question

# Choose the function f(t); - ∞ < t < ∞, for which a Fourier series cannot be defined

1.  3 sin (25 t)

2.   4 cos (20 t + 3) + 2 sin (710 t)

3.  exp (-| t |) sin (25 t)

4.   1

4

exp (-| t |) sin (25 t)

Explanation :
No Explanation available for this question

# The state space representation of a separately excited DC servo motor dynamics is given   where ω  is  the  speed  of  the motor,  i a  is  the  armature  current  and  u  is  the  armature voltage. The transfer function (ω(s))/(U(s)) of the motor is

1.  10/(s2 + 11s + 11)

2.  1/(s2 + 11s + 11)

3.  (10s + 10)/(s2 + 11s + 11)

4.  1/(s2 + s + 1)

4

10/(s2 + 11s + 11)

Explanation :
No Explanation available for this question

# In delta modulation, the slope overload distortion can be reduced by

1.  decreasing the step size

2.  decreasing the granular noise

3.  decreasing the sampling rate

4.  increasing the step size

4

increasing the step size

Explanation :
No Explanation available for this question

# The raised cosine pulse p(t) is used for zero ISI in digital communications. The expression for p(t) with unity roll-off factor is given by p(t) = (sin 4π Wt)/(4πWt(1 - 16 W2t2)).The value of p(t) at t = (1/4W) is

1.  -0.5

2.  0

3.  0.5

4.  ∞

4

0.5

Explanation :
No Explanation available for this question

# A fair dice is rolled twice. The probability that an odd number will follow an even number is

1.  1/2

2.  1/6

3.   1/3

4.  1/4

4

1/4

Explanation :
No Explanation available for this question

# A solution of the following differential equation is given by (d2y/dx2) - 5(dy/dx) + 6y = 0

1.  y = e2x + e-3x

2.  y = e2x + e3x

3.  y = e-2x + e3x

4.  y = e-2x + e-3x

4

y = e2x + e3x

Explanation :
No Explanation available for this question

# In the following scheme, if the spectrum M(f) of m(t) is as shown, then the spectrum Y(f) of y(t) will be

1.

2.

3.

4.

4

Explanation :
No Explanation available for this question

# During  transmission  over  a  certain  binary  communication  channel,  bit  errors  occur independently with probability p. The probability of AT MOST one bit in error in a block of n bits is given by

1.  pn

2.  1 - pn

3.  np(1 - p)n - 1 + (1 - p)n

4.  1 - (1 - p)n

4

np(1 - p)n - 1 + (1 - p)n

Explanation :
No Explanation available for this question

# The function x(t) is shown in the figure. Even and odd parts of a unit-step function u(t) are respectively,

1.  (1/2), (1/2)x(t)

2.  -(1/2), (1/2)x(t)

3.  (1/2), -(1/2)x(t)

4.  -(1/2), -(1/2)x(t)

4