Kerala PSC Previous Years Question Paper & Answer
Page:15
Below are the scanned copy of Kerala Public Service Commission (KPSC) Question Paper with answer keys of Exam Name 'Assistant Engineer - United Electrical Industries Ltd' And exam conducted in the year 2023. And Question paper code was '231/2023'. Medium of question paper was in Malayalam or English . Booklet Alphacode was 'A'. Answer keys are given at the bottom, but we suggest you to try answering the questions yourself and compare the key along wih to check your performance. Because we would like you to do and practice by yourself.
90. A 65 Q lossless transmission line is terminated with load impedance Z, = 65 — j75Q. If the
incident power to the load is 100 mW, the power absorbed by the load is :
(A) 68mW
(8) 15 ۷
© 81817
(D) 90mW
91.
Impulse-train sampling of x[n] is used to obtain g[n]=
37
7
+ [72] 6 [77 - हि] . 1 ¬ (८.५) = 0 for
< [ப] <7, determine the largest value for the sampling interval N which ensures that no
aliasing takes place while sampling [77] :
(A)
(0 4
bo
8 رم
(D)
x
92. The unit sample response of the system described by the
difference equation
y[n] =ty [n-1]+2x[n] is:
۸ (5) uln] (3) 19 u[n]
(0 ಸಿ ധി (0) இ u[n]
93. The first three DFT coefficients of the four-point DFT of a real sequence are given as
X[0]=10, X[1]=-2+j2 and X[2]=-2. The remaining DFT coefficient is :
(0) 2+2 (B) 2
೧) 35/5
94. If x[n] <^ > (८) , then the time shifting property of the Fourier transform is given by:
ஸூ. உறி (೬)
൯ e’"" x[n]}<—~—> X (w-wy)
© ಜಗಾ 1 xw)
(2) nx[n] < ¬) (0
dw
17 231/2023
[P.T.0.]