# Consider a system shown in the given figure If the system is disturbed so that C(0)=1, then C(t) for a unit step input will be

1.  1+t

2.  1-t

3.  1+2t

4.   1-2t

4

1+2t

Explanation :
No Explanation available for this question

# The mean of a set of numbers is.If each number is increased by λ,then mean of the new set is

1.

2.

3.

4.  none of these

4

Explanation :
No Explanation available for this question

# If each observation of raw data whose variance is σ2,is increased by λ,then variance of the new set is

1.  σ2

2.  λ2 σ2

3.  λ+ σ2

4.  λ2 +σ2

4

λ2 σ2

Explanation :
No Explanation available for this question

# If mode of a data is 18 and mean is 24,then median is

1.  18

2.  24

3.  22

4.  21

4

22

Explanation :
No Explanation available for this question

# What will be the closed loop transfer function of a unity feedback control system whose step response is given by c(t)=K[1-1.66e-8tsin(6t+370)]

1.

2.

3.

4.

4

Explanation :
No Explanation available for this question

# If ismean of distribution,thenis equal to

1.  M.D

2.  Stamdard deviation

3.  0

4.  None of these

4

0

Explanation :
No Explanation available for this question

# bxybyx is equal to

1.  P(X

2.  cov (x,y)

3.  {p(x,y)}2

4.  None of these

4

{p(x,y)}2

Explanation :
No Explanation available for this question

# A system is represented by +2y=4tu(t) The ramp component in the forced response will be

1.  tu(t)

2.  2tu(t)

3.  3tu(t)

4.   4tu(t)

4

2tu(t)

Explanation :
No Explanation available for this question

# If the unit step response of a network is (1-e-αt), then its unit impulse response will be

1.  αe-αt

2.  αe-t/α

3.

4.  (1-α)e-αt

4

αe-αt

Explanation :
No Explanation available for this question

# If cov (X,Y)=0,then which of the following is negative

1.  byx

2.  bxy

3.  p(X,Y)

4.  none of these

4