Kerala PSC Previous Years Question Paper & Answer
Page:12
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.
74.
75.
76.
The output voltage of 7909 IC is
(A) +9V (8) +79 2
(©) -79 ४ (0) -9%
A discharged battery should not be tested by using
(A} abattery hydrometer (8) & high rate discharge tester
(C) avoltmeter (D) all of the above
‘Which device converts one form of energy into another ?
(A) ಟೈ {B) Converter
(¢) Transmitter (D) Inverter
The output waveform of a relaxation oscillator is
(A) Rectangular (B) Square
(0) ஸம் (D) Above mentioned waves
78. At what frequency range, do Marconi antenna is used ?
(^) VHF (8) பா
(८) MF ற பமா
79. Which of the following antenna can be used as a reference antenna for measuring the
power gain of other antennas ?
(A) Half wave dipole (8) Yagi antenna
(C) Rhombic antenna (D) Parabolic antenna
80. A 500 watt carrier is modulated to a depth of 80%. What is the total power in the
modulated Wave ?
(4) 580 ५, (8) 410 ५
(9) 660 ١ (D) 606.66
218/2014 12 A
