Kerala PSC Previous Years Question Paper & Answer
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Below are the scanned copy of Kerala Public Service Commission (KPSC) Question Paper with answer keys of Exam Name 'Engineering Assistant ( Electronics)/Overseer Gr-I (Electronics) - PWD (Electronics Wing) ' And exam conducted in the year 2021. And Question paper code was '137/2021'. 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.
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The statistical measure of the range of frequency over which the channel can be
considered flat is known 85 ___
(A) Coherence time (B) Transmission bandwidth
(C) Coherence bandwidth (D) Propagation time
In a GSM system identify the function of MSC.
(A) Takes care of handoff from one BTS to the other
(B) Stores dynamic information while logged onto GSM
(C) Co-ordinates all the activities of base station and connects the entire cellular
system to PSTN.
(D) All of the above
In GSM is used to separate uplink and downlink
(A) TDM (B) FDD
(C) TDD (D) FDM
Suppose there are N cells in 8 cellular system and each cell is allocated K channel the
total number of available channel is given by
(A)S=N+K (8) S=K/N
(C)S=N/K (D)S-K*N
Before a subscriber can use any service from GSM network, he must be authenticated.
This authentication is based لله
(A) ISDN (B) SIM
(C) DTMF (D) BTS
Near-far effect is a severe problem in wireless networks using
(A) TDMA (8) ۱۸۸
(C) SDMA (D) CDMA
रि 15/2021