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 'VOCATIONAL TEACHER MAINTENANCE AND REPAIRS OF RADIO AND TELEVISION' And exam conducted in the year 2016. And Question paper code was '046/2016'. 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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Consider the following :
1. Generation of SSB signals
2. Design of minimum phase type filters
3. Representation of band pass signals
Which of the above applications is Hilbert transform used?
(8) lonly (8) 1,2and3
(C) 1,2 only (0) 18863
Main disadvantage of PCM is:
(५) It needs large bandwidth (B) It is incompatible with FDM
(C) High error rate (D) In compatible with time ತ
In phase shift keying the input signal is
(A) கபி - Acosa@pt and s,(t) =-Acos mgt
(B) 5, ८) = 5५) = 4 ८०७०० ⋅∎
≼∁≱⊱⇂↻⋅⊐−↽⋀⊏∘⊟⊄∃⊔⋅↾ ⊞⋅∥↥⋮⋅≵⋯−⇀⋀∞⊟↸↡≹↾∥⊭ ⊹↗∥∙≞≽
⊞∃⋮⇂⊏≖⋟−−⋀∾⊟⇃≹∄∎∎⋯ ≖⋯↺≅↿⋯∶−∙⋀∞⋮∢⊡∐∥ #12)
Rather than sending the absolute value of each sample, it is possible to achieve a smaller
transmission bit-rate by sending the difference between consecutive samples. This is known
as: ۰
(^) delta-sigma modulation (B) delta modulation
(C) adaptive delta modulation (D) differential PCM
The impulse response of a linear interpolator is :
(A) A square pulse (B) Rectangular pulse
(C) Linear ramp (@) Triangular pulse
Compandor, in digital communication refers to:
(A) Compressor (B) Expander
(0) Both (A) and (B) (D) None of the above
Slotted frequency hopping is :
(A) Synchronous frequency hopping (B) Sequential frequency hopping
(C) Random frequency hopping (D) Asynchronous frequency hopping
Bit length of a pseudo noise code, having m stage shift register is :
(5) 2" (छी 20
0 2-1 ത.
7 046/2016
[P.7.0]
