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# SSC Scientific Assistant Electronics Previous Year Questions 181 to 200

Hi students, Welcome to Amans Maths Blogs (AMBIPi). Are you preparing for SSC Scientific Assistant and looking for SSC Scientific Assistant Electronics Questions 181 to 200 with Answer Keys? In this article, you will get previous year questions of SSC Scientific Assistant IMD (Indian Meteorological Department), which helps you in the preparation of government job of SSC IMD Scientific assistant.

## SSC Scientific Assistant IMD Previous Year Questions

SSC Scientific Assistant Electronics Question No: 181

How many samples does a Delta modulation use ?

Option A : 1

Option B : 2

Option C : 3

Option D : 4

Option A : 1

SSC Scientific Assistant Electronics  Question No: 182

What is the frame rate of the TDM when the transmission rate is 32 kbps and each slot has 16 bits.

Option A : 1000 fps

Option B : 2000 fps

Option C : 3000 fps

Option D : 4000 fps

Option B : 2000 fps

SSC Scientific Assistant Electronics Question No: 183

The bandwidth of signals to be transmitted is less than useful bandwidth of the medium. What should be used to increase the efficiency of the bandwidth ?

Option A : Code division multiplexing

Option B : Frequency modulation

Option C : Frequency division multiplexing

Option D : Time division multiplexing

Option C : Frequency division multiplexing

SSC Scientific Assistant Electronics  Question No: 184

An 8 to 1 mux has ______ selection lines.

Option A : 0

Option B : 1

Option C : 2

Option D : 3

Option D : 3

SSC Scientific Assistant Electronics Question Paper No: 185

In which year Simon Commission came to India?

Option A : 1919

Option B : 1925

Option C : 1928

Option D : 1932

Option C : 1928

SSC Scientific Assistant Electronics  Question No: 186

The bandwidth required by the ASK modulated signal is ______.

Option A : double of bandwidth of a baseband signal

Option B : half of the bandwidth of baseband signal

Option C : quarter of the bandwidth of baseband signal

Option D : same as the bandwidth of baseband signal

Option D : same as the bandwidth of a baseband signal.

SSC Scientific Assistant Electronics  Question No: 187

Which among the following is also called ON- OFF keying ?

Option A : ASK

Option B : FSK

Option C : PSK

Option D : QPSK

Option A : ASK

SSC Scientific Assistant Electronics  Question Paper No: 188

Which of the following can be used as a transmitter for a optical fiber ?

Option A : Photo-diode

Option B : Bulb

Option C : Laser

Option D : Sun

Option C : Laser

SSC Scientific Assistant Electronics Question Paper No: 189

To reduce the attenuation in a fiber optic cable due to cable band, we can ______.

Option A : add new bends

Option B : add a new cable in a parallel

Option C : use repeaters

Option D : increase the band radius

Option D : increase the bend radius

Previous Year Question SSC Scientific Assistant Electronics : 190

What is the critical angle of incidence (in degrees) of fiber optic cable when the refractive index of a core and cladding are 3.2 and 1.2 respectively.

Option A : 15

Option B : 30

Option C : 45

Option D : 60

Option B : 30

SSC Scientific Assistant Electronics Question No: 191

Which among the following is NOT an advantage of an optical fiber ?

Option A : Easy splicing and cable laying

Option B : High bandwidth

Option C : Low attenuation

Option D : Immunity to lightning

Option A : Easy splicing and cable laying

SSC Scientific Assistant Electronics  Question No: 192

What is the frequency range of super high frequency ?

Option A : 3 MHz – 30 MHz

Option B : 30 MHz – 300 MHz

Option C : 300 MHz – 3000 MHz

Option D : 3 GHz – 30 GHz

Option D : 3 GHz – 30 GHz

SSC Scientific Assistant Electronics Question No: 193

What is the wavelength of HF ?

Option A : 100 m – 10 m

Option B : 10 m – 1 m

Option C : 1000 mm – 100 mm

Option D : 100 mm – 10 mm

Option D : 100 mm – 10 mm

SSC Scientific Assistant Electronics Question No: 194

What is the frequency range of a microwave ?

Option A : 3 kHz – 300 GHz

Option B : 300 MHz – 300 GHz

Option C : 300 MHz – 3000 MHz

Option D : 3 kHz – 30 kHz

Option B : 300 MHz – 300 GHz

SSC Scientific Assistant Electronics Question Paper No: 195

Susceptance is a measure ability to pass ______.

Option A : voltage

Option B : current

Option C : voltage and current

Option D : None of these

Option B : current

SSC Scientific Assistant Electronics Previous Year Paper Question No: 196

A copper wire is a 3 meter long and has a uniform cross -section of 0.6 square mm. At room temperature , the resistance of a wire is 0.183 ohms. What is the resistivity of the material ?

Option A : 3.06 x 10-8 Ωm

Option B : 3.66 x 10-8 Ωm

Option C : 3.26 x 10-4 Ωm

Option D : 3.23 x 10-6 Ωm

Option B : 3.66 x 10-8 Ωm

SSC Scientific Assistant Electronics Question No: 197

In order to cover a large area of dielectric medium, the capacitance should be ______.

Option A : Very high

Option B : Low

Option C : Zero

Option D : Extremely low

Option A : Very high

SSC Scientific Assistant Electronics Question Paper No: 198

An LED using made GaP emits radiation in ______

Option A : Visible region

Option B : Ultraviolent region

Option C : Infrared region

Option D : Green radiation

Option D : Green radiation

SSC Scientific Assistant Electronics Question Paper No: 199

What type of chemical bonding is present in a germanium semiconductor ?

Option AMetallic

Option B : Covalent

Option C : Chemical

Option D : Ionic

Option B : Covalent

Previous Year Question SSC Scientific Assistant Electronics : 200

Which capacitor has the maximum capacitance per unit volume ?

Option A : Air capacitor

Option B : Mica capacitor

Option C : Ceramic capacitor

Option D : Electrolytic  capacitor