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# SSC Scientific Assistant IMD Electronics Questions 121 to 140 AMBIPi

Hi students, Welcome to Amans Maths Blogs (AMBIPi). Are you preparing for SSC Scientific Assistant and looking for SSC Scientific Assistant IMD Electronics Questions 121 to 140 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

Scientific Assistant IMD Electronics Question No: 121

What is taken as reference vector in the analysis of parallel RC circuits ?

Option A : I

Option B : R

Option C : V

Option D : XC

Option C : V

SSC Scientific Assistant IMD Electronics Question No: 122

The power measured in VAR is ______

Option A : active power

Option B : apparent power

Option C : impedance power

Option D : reactive power

Option D : reactive power

SSC Scientific Assistant IMD Electronics Question No: 123

What is true power of a parallel RL circuit connected to an AC voltage source of 60 V with a resistance of 20 ohms and an inductive reactance of 1600 ohms ?

Option A : 160 W

Option B : 180  W

Option C : 200 W

Option D : 220 W

Option B : 180 W

SSC Scientific Assistant IMD Electronics Question No: 124

What is the impedance (in ohms) of the series RLC circuit having R = 50 ohms, L = 0.32 H and C – 10 µF operating at 50 Hz?

Option A : 100.53

Option B : 217.78

Option C : 223.45

Option D : 318.31

Option C : 223.45

SSC Scientific Assistant IMD Electronics Question Paper No: 125

What value of capacitance in (µF) must be connected in a series RL circuit having L = 0.32 H and R = 50 ohms, to obtain purely resistive circuit ?

Option A : 0.0317

Option B : 0.317

Option C : 3.17

Option D : 32

Option B : 0.317

SSC Scientific Assistant IMD Electronics Question No: 126

In a series RL circuit , the inductive reactance in XL = 50 ohms and inductance of 0.16 H. What is the frequency of supply ?

Option A : 20 Hz

Option B : 25 Hz

Option C : 50 Hz

Option D : 60 Hz

Option C : 50 Hz

SSC Scientific Assistant IMD Electronics Question No: 127

A series RLC circuit has a resistance of 2 k -ohms, inductance of 0.05 H and capacitance of 10 µF. What is the bandwidth (in kHz) of the circuit ?

Option A : 5.86

Option B : 6

Option C : 6.36

Option D : 7

Option C : 6.36

Scientific Assistant IMD Electronics Paper No: 128

A series RLC circuit has a resistance of 80 ohms, inductance of 1.25 ohms and capacitance of 5 µF. What is the quality factor of the circuit ?

Option A : 5.25

Option B : 5.5

Option C : 5.75

Option D : 6.25

Option D : 6.25

IMD Scientific Assistant IMD Electronics Question Paper No: 129

What is the value of the neutral current in a 3-phase balanced star system ?

Option A : 0.333 of phase current

Option B : 0.666 of phase current

Option C : 0.707 of phase current

Option D : Zero

Option D : Zero

Previous Year Question Scientific Assistant IMD Electronics : 130

Which range is bounded by the Central Highlands on the south and the Aravalis on the northwest??

Option A : Vindhya

Option B : Karakoram

Option C : Shevaroy

Option D : Satpura

Option A : Vindhya

Scientific Assistant IMD Electronics Question No: 131

What is the value of the line voltage (in kV) of a three phase star connected system having a phase voltage of 3.3 kV?

Option A : 1.1

Option B : 2.1

Option C : 3.3

Option D : 5.7

Option D : 5.7

Scientific Assistant IMD Electronics Question No: 132

What is the value of per phase resistance ( in ohms ) in a star connection ,if the equivalent delta connection has per phase  resistance of a 90 ohms ?

Option A : 30

Option B : 45

Option C : 60

Option D : 75

Option A : 30

SSC Scientific Scientific Assistant IMD Electronics Question No: 133

What is the value of line voltage (in kV) of a 3-phase delta connected system having a phase voltage of 3.3 kV ?

Option A : 1.1

Option B : 2.1

Option C : 3.3

Option D : 5.7

Option C : 3.3

Scientific Assistant IMD Electronics Question No: 134

The condition of resonance arise when ______?

Option A : resistance is equal to inductive resistance

Option B : resistance is equal to capacitive resistance

Option C : resistance is equal to impedance

Option D : capacitive resistance is equal to impedance

Option C : resistance is equal to impedance

Scientific Assistant IMD Electronics Question Paper No: 135

To increase the resonant frequency of a parallel RLC circuit , the capacitance must be the ______

Option A : decreased

Option B : increased

Option C : replaced with impedance

Option D : replaced with resistance

Option A : decreased

Scientific Assistant IMD Electronics Question No: 136

What is the Boolean expression for a 4-input AND gate ?

Option A : X = A + BCD

Option B : X = AB + CD

Option C : X = ABC + D

Option D : X = ABCD

Option D : X = ABCD

Scientific Assistant IMD Electronics Question No: 137

For all possible input combinations , the exact reverse output of OR gate can be obtained by ______ gate ?

Option A : EX – NOR

Option B : EX-OR

Option C : NOR

Option D : NOT

Option C : NOR

Scientific Assistant IMD Electronics Paper No: 138

What is the number of clock pulses required to completely load and than unload a 4-bit register ?

Option A : 4

Option B : 7

Option C : 16

Option D : 32

Option B : 7

Scientific Assistant IMD Electronics Paper No: 139

If the input resistor of 100 k- ohms of a binary weighted DAC is connected to a 3 V supply , than what will be the current flowing through the resistor ?

Option A : 30 µA

Option B : 300 µA

Option C : 3 mA

Option D : 30 mA

Option A : 30 µA

Previous Year Question Scientific Assistant IMD Electronics : 140

What is the resolution of a 0- 5 V 8-bit DAC ?

Option A : 0.0019

Option B : 0.0039

Option C : 0.0078

Option D : 0.0156