Hi students, Welcome to **Amans Maths Blogs (AMBIPi)**. Are you preparing for **SSC Scientific Assistant** and looking for * SSC Scientific Assistant IMD Electronic Questions 221 to 240 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: 221**

The current at resonance in RLC series circuit is ______

**Option A** : Maximum

**Option B** : Minimum

**Option C** : Zero

**Option D** : Infinite

**Show/Hide Answer Key**

**Option A : Maximum**

**SSC Scientific Assistant IMD Electronic Question No: 222**

The SI unit of reactive power and apparent power are ______ and ______ respectively.

**Option A** : VAR and VA

**Option B** : kVA and VAR

**Option C** : VA and kV

**Option D** : kA and VA

**Show/Hide Answer Key**

**Option A : VAR and VA**

**SSC Scientific Assistant IMD Electronic Question No: 223**

A parallel RLC circuit has 25 ohms resistor , 10 mH inductor and 2.5 μF capacitor connected in parallel across a 50 V, 100 Hz AC supply . Calculate the total impedance , conductance and admittance produced by the circuit.

**Option A** : 15.65 Ω , 40 mS and 63.8 mS

**Option B** : 10.65 Ω , 25 mS and 63 mS

**Option C** : 12.65 Ω , 30 mS and 60 mS

**Option D** : 15 Ω, 14.276 Ms and 63.2 mS

**Show/Hide Answer Key**

**Option D : 15 Ω, 14.276 Ms and 63.2 mS**

**SSC Scientific Assistant IMD Electronic Question No: 224**

Calculate the value of ix when resistance is 4 Ω and voltage of each battery is 8 Ω

**Option A** : 1.1456 A

**Option B** : O A

**Option C** : 0.074 A

**Option D** : 1,234 A

**Show/Hide Answer Key**

**Option C : 0.074 A**

**SSC Scientific Assistant IMD Electronic Question Paper No: 225**

Find Thevenin’s resistance across AB in the following circuit .

**Option A** : 200

**Option B** : 400

**Option C** : 0

**Option D** : 1000

**Show/Hide Answer Key**

**Option D : 1000**

**SSC Scientific Assistant IMD Electronic Question No: 226**

What does the superposition theorem determines when applied to a linear network ?

**Option A** : The current and voltage responds

**Option B** : Only current responds

**Option C** : Only voltage responds

**Option D** : The power responds

**Show/Hide Answer Key**

**Option A : The current and voltage responds**

**SSC Scientific Assistant IMD Electronic Question No: 227**

What is the condition for the maximum power delivered from the source to its load ?

**Option A** : Load resistance greater than the source resistance

**Option B** : Load resistance less than the source resistance

**Option C** : Load resistance equal the source resistance

**Option D** : Load resistance less than or equal to the source resistance

**Show/Hide Answer Key**

**Option C : Load resistance equal the source resistance**

**SSC Scientific Assistant IMD Electronic Question Paper No: 228**

A series RC circuit has 5-k-Ω resistor and a 2.5 μF capacitor connected across 20 V , 500 Hz supply. Calculate the total impedance and conductive reactance

**Option A** : 5040.38 Ω and 636.62 Ω

**Option B** : 3758.6 Ω and 635 Ω

**Option C** : 600.6 Ω and 630 Ω

**Option D** : 2752.5 Ω and 626.26 Ω

**Show/Hide Answer Key**

**Option A : 5040.38 Ω and 636.62 Ω**

**SSC Scientific Assistant IMD Electronic Question Paper No: 229**

The relation between the line voltage and the phase voltage in a delta connected load is given by

**Option A** : Line voltage > phase voltage

**Option B** : Line voltage = Phase voltage

**Option C** : Line voltage = √3 Phase voltage

**Option D** : Line voltage = 1√3 Phase voltage

**Show/Hide Answer Key**

**Option B : Line voltage = Phase voltage**

**Previous Year Question SSC Scientific Assistant IMD Electronic: 230**

In a balanced star connected power system the line voltage is 480 volts than calculate the phase voltage.

**Option A** : 277.1 V

**Option B** : 480 V

**Option C** : 470 V

**Option D** : 831.3 V

**Show/Hide Answer Key**

**Option A : 277.1 V**

**SSC Scientific Assistant IMD Electronic Question No: 231**

What is the term for the power factor in an RLC series circuit , just below and just above the resonant frequency respectively.

**Option A** : Both lagging

**Option B** : Both leading

**Option C** : Lagging and leading

**Option D** : leading and lagging

**Show/Hide Answer Key**

**Option D : Leading and lagging**

**SSC Scientific Assistant IMD Electronic Question No: 232**

A star connected network consumes a power of 20 kW with a power factor of 0.8. Calculate the value of resistance of each coil when a supply voltage of 230 volts and 50 Hz is supplied between two phases of the network

**Option A** : 8 ohms

**Option B** : 1.23 ohms

**Option C** : 1 ohm

**Option D** : 1.692 ohms

**Show/Hide Answer Key**

**Option D : 1.692 ohms**

**SSC Scientific Assistant IMD Electronic Question No: 233**

Calculate the impedance , if inductive reactance is 100 ohms and resistance is 150 ohms

**Option A** : 150 ohms

**Option B** : 141.4 ohms

**Option C** : 180.27 ohms

**Option D** : 100 ohms

**Show/Hide Answer Key**

**Option C : 180.27 ohms**

**SSC Scientific Assistant IMD Electronic Question No: 234**

Which among the following has SI unit of siemens ?

**Option A** : Conductance

**Option B** : Inductance

**Option C** : Resistance

**Option D** : Impedance

**Show/Hide Answer Key**

**Option A : Conductance**

**SSC Scientific Assistant IMD Electronic Question Paper No: 235**

How much electricity is consumed by 200-watt bulb , when kept ON for atleast 8 hours continuously ?

**Option A** : 100 watts

**Option B** : 1600 watts per hour

**Option C** : 100 watts per hour

**Option D** : 1 kilo watts per hour

**Show/Hide Answer Key**

**Option B : 1600 watts per hour**

**SSC Scientific Assistant IMD Electronic Question No: 236**

Determine the resolution of a flash type ADC which employs 25 comparators with a reference voltage of 10 vots.

**Option A** : 0.625 V

**Option B** : 0.656 V

**Option C** : 0.3125 V

**Option D** : 0.525 V

**Show/Hide Answer Key**

**Option C : 0.3125 V**

**SSC Scientific Assistant IMD Electronic No: 237**

Which gate has the highest speed of operation

**Option A** : ECL gate

**Option B** : Universal gate

**Option C** : Logic gate

**Option D** : Both logic and universal gate

**Show/Hide Answer Key**

**Option A : ECL gate**

**SSC Scientific Assistant IMD Electronic Previous Year Question Paper No: 238**

A full adder combinational circuit has

**Option A** : 3 inputs and 2 outputs

**Option B** : 2 inputs and 0 outputs

**Option C** : 1 input and 0 output

**Option D** : 4 inputs and 1 outputs

**Show/Hide Answer Key**

**Option A : 3 inputs and 2 outputs**

**SSC Scientific Assistant IMD Electronic Paper No: 239**

The memory that uses one transistor and one capacitor as a basic memory unit is

**Option A** : DRAM

**Option B** : SRAM

**Option C** : RAM

**Option D** : Both SRAM and DRAM

**Show/Hide Answer Key**

**Option A : DRAM**

**Previous Year Question SSC Scientific Assistant IMD Electronic: 240**

Which among the following multi-vibrators is unstable in any state ?

**Option A** : Astable multivibrator

**Option B** : Bistable multivibrator

**Option C** : Monostable multivibrator

**Option D** : Both Astable and Bistable multivibrator

**Show/Hide Answer Key**

**Option A : Astable multivibrator**

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