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 'LABORATORY TECHNICAL ASSISTANT MRRTV VHSE' And exam conducted in the year 2014. And Question paper code was '218/2014'. 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.
49,
52.
AM broadcast band is
(A) 1605 KHz to 30 MHz (8) 10to30KHz
(C) 535 KHzto 1605 KHz (D) 88 MHzto 108 MHz
In AM radio, the bandwidth of the IFTs used is
(ക) 455 KHz (B) 10.7 MHz
(C) 440 KHz (D) 20KHz
In radio receivers, the AGC bias voliage controls the gain of
{A) RF amplifier (8) 1 amplifier
(C) AF amplifier (D) All of the above
The colour sub carrier frequency of PAL system is
(ക) 435MHz (8) 4.49 MHz
(¢) 4.36 MHz . (D) 4.43 MHz
53. In TV the DC component of video signal is restored by using
(ക) Clamping circuit (8) RC circuit
(C) Clipping circuit (D) LC circuit
54. The bandwidth of luminance signal in the colour TV system adopted in India is
(A) 2MHz (8) 4 MHz
(¢^) 3MHz (D) 3.5MHz
55. The type of polarization used for TV transmission 15
(ക) wvertical (8) elliptical
{C) horizontal (D) circular
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