Thursday, June 13, 2024
Home > SSC Scientific Assistant > SSC IMD Scientific Assistant Electronics Questions 241 to 260 AMBIPi

# SSC IMD Scientific Assistant Electronics Questions 241 to 260 AMBIPi

Hi students, Welcome to Amans Maths Blogs (AMBIPi). Are you preparing for SSC Scientific Assistant and looking for SSC Scientific Assistant IMD Electronic Questions 241 to 260 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 IMD Electronic Question No: 241

What type of logic circuit is represented by the given figure below

Option A : NOR gate

Option B : XNOR gate

Option C : AND gate

Option D : OR gate

Option A : NOR gate

SSC Scientific Assistant IMD Electronic Question No: 242

A 4 bit uniform quantization PCM system can attain a signal ranging from -2 to +2 V. The ms value of the signal 0.5 V. What is the signal to quantization noise ratio ?

Option A : 30 dB

Option B : 46.91 dB

Option C : 25.84 dB

Option D : 40 dB

Option C : 25.84 dB

SSC Scientific Assistant IMD Electronic Question No: 243

Quantization is a ______ and a/an ______ process

Option A : Non-linear and Irreversible

Option B : Linear and irreversible

Option C : Non-linear and reversible

Option D : Linear and reversible

Option D : Right to education

SSC Scientific Assistant IMD Electronic Question No: 244

If the current flowing in the antenna is 17 A which radiates a signal of power 15.028 kW, then what will be the radiation resistance (in ohms ) of the antenna ?

Option A : 3.2

Option B : 5.2

Option C : 32

Option D : 52

Option D : 52

SSC Scientific Assistant IMD Electronic Question Paper No: 245

The antenna current of an AM transmitter is 6 A. Determine the antenna current of the transmitter when the percent of modulation changes to 0.4.

Option A : 9.19 A

Option B : 7.56 A

Option C : 6.23 A

Option D : 9.91 A

Option C : 6.23 A

SSC Scientific Assistant IMD Electronic Question No: 246

Calculate the speed of the capacity of the channel (in Mbps) when the TV picture is transmitted over a channel of with 25 dB S/N ratio

Option A : 72 Mbps

Option B : 27 Mbps

Option C : 92 Mbps

Option D : 74.4 Mbps

Option D : 74.4 Mbps

SSC Scientific Assistant IMD Electronic Question No: 247

In delta modulation system, the granular noise is produced by which of the following ?

Option A : Pulse rate decrease

Option B : Pulse amplitude decreases

Option C : Modulating signals increases

Option D : Modulating signals remains constant

Option D : Modulating signals remains constant

SSC Scientific Assistant IMD Electronic Question Paper No: 248

Which among the following transmits the data samples over a single channel ?

Option A : TDM

Option B : FDM

Option C : PCM

Option D : PTM

Option A : TDM

SSC Scientific Assistant IMD Electronic Question Paper No: 249

Which signal is generated by using a mono stadium multivibrator ?

Option A : PCM

Option B : TDM

Option C : PAM

Option D : PWM

Option A : PCM

SSC Scientific Assistant IMD Electronic: 250

Which filter is used to detect the PAM signal ?

Option A : Low pass filter

Option B : High pass filter

Option C : Band pass filter

Option D : All band pass filter

Option A : Low pass filter

SSC Scientific Assistant IMD Electronic Question No: 251

Find the 2’s compliment of 8 bit number that is represented as 28 in decimal number system

Option A : 11010110

Option B : 11100100

Option C : 000111001

Option D : 11100010

Option B : 11100100

SSC Scientific Assistant IMD Electronic Question No: 252

Pilot carrier in SSB modulation is used for

Option A : To provide better noise immunity

Option B : Low power consumption

Option C : Frequency stability

Option D : Reduction of carrier frequency

Option C : Frequency stability

SSC Scientific Assistant IMD Electronic Question No: 253

FSK modulation is mostly applied in

Option A : Telegraphy

Option B : Fiber Transmission Line

Option C : Wave guide

Option D : Tuned circuit

Option B : Telegraphy

SSC Scientific Assistant IMD Electronic Question No: 254

Pre-emphasis circuit in FM transmitter is used

Option A : to increase the bandwidth of a side band

Option B : to improve the signal to noise ratio at low audio frequencies

Option C : to improve the signal to noise ratio at a high audio frequencies

Option D : to increase to carrier power

Option C : to improve the signal to noise ration at a high audio frequencies

SSC Scientific Assistant IMD Electronic Question Paper No: 255

Arrange the following components sequentially from the output to input in a super heterodyne receiver.

i. Antenna

ii. IF amplifier

iii. Mixer

iv. Audio amplifier

Option A : i , ii , iii and iv

Option B : iv , iii , ii and i

Option C : i , iii , iv and ii

Option D : iv , ii , iii and i

Option B : iv , ii , iii and i

Previous Year Paper SSC Scientific Assistant IMD Electronic Question No: 256

The auto correction function of white noise is represented as ________?

Option A : uniform

Option B : delta

Option C : gaussian

Option D : non-uniform

Option B : delta

SSC Scientific Assistant IMD Electronic Question No: 257

Optical fiber operates in

Option A : Visible light band

Option B : Ultraviolet band

Option C : Infra red band

Option D : Ultraviolet , visible and infrared band

Option D : Ultraviolet , visible and infrared band

Previous Year SSC Scientific Assistant IMD Electronic Question Paper No: 258

The output of source encoder is

Option A : An analog signal

Option B : Sequence of binary digits

Option C : A digital signal

Option D : A triangular wave

Option B : Sequence of binary digits

SSC Scientific Assistant IMD Electronic Question Paper No: 259

In a parallel RL circuit, the current always ________ the applied voltage.

Option B : lags

Option C : remains in phase with

Option D : None of these

Option B : lags

Previous Year Question SSC Scientific Assistant IMD Electronic: 260

Which modulator is used for the generation of DSB-SC signal ?

Option A : Balanced modulator

Option B : Square law modulator

Option C : Armstrong phase modulator

Option D : Envelop detector