IES EC Government Jobs Exams Logical Reasoning

Q. The impulse response of a system h(n) = a^n u(n). What is the condition for the system to be BIBO stable?

a. a is real and positive
b. a is real and negative
c. | a | > 1
d. | a | < I

Read Solution (Total 2)

ans d for bibo stability |h(n) | should be integrable
implies | a | < 1
10 years agoHelpfull: Yes(2) No(0)

a real and negative
3 years agoHelpfull: Yes(0) No(0)

IES EC Other Question

Q. The sine wave output of a function generator is fed to both the horizontal (X)and vertical (Y) inputs of a CR0. What will be the pattern on the cathode ray screen?
a. A circle
b. An ellipse
c. A straight line with 45° slope
d. Sinusoidal Match List-I (Application of Signals) with
List-II (Defamation) and select the correct
answer using the code given below
List-I
A. Reconstruction
B. Over sampling
C. Interpolation
D. Decimation
List -II
1. Sampling rate is chosen significantly
greater than the Nyquist rate
2. A mixture of continuous and discrete
time signals
3. To convert the discrete time sequence
back to a continuous time signal and
then resample
4. Assign values between samples and
signals
Codes;
A B C D
a. 3 4 1 2
b. 2 1 4 3
c. 3 1 4 2
d. 2 4 1 3