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Hi guys here I am looking for SSC Junior Engineer Electrical Question Paper so will you plz let me know from where I can do download it ??

[prince karak]

As you want here I am giving below SSC Junior Engineer Electrical Question Paper on your demand :

Why are same types of cells connected in parallel?

Options:
1) To decrease the voltage rating
2) To increase the voltage rating
3) To decrease the current rating
4) To increase the current rating
Correct Answer: To increase the voltage rating

Which of the following is equivalent to 0.5 kWh?

Options:
1) 1800000 W
2) 1800000 J
3) 18000000 J
4) 36000000 J
Correct Answer: 1800000 J

Which of the following quantity will remain the same, when a layer of Teflon is inserted between the plates of a charged parallel plate capacitor?

Options:
1) Capacitance
2) Charge
3) Energy of the capacitor
4) Potential
Correct Answer: Charge

What will be the value of resistance (in kilo-ohms) of a carbon composition resistor having color-coding of brown-black-brown-black?

Options:
1) 400

2) 200

3) 300

4) 100
Correct Answer: 100


Which of the following is NOT a type of capacitor?

Options:
1) Ceramic
2) Electrolytic
3) Film
4) Wire wound
Correct Answer: Wire wound

Which of the following is TRUE in case of Substitution theorem?

Options:
1) The initial condition of the rest of the circuit changes, if a network element is replaced by a voltage source having an equal voltage as the voltage across the element at every instant of time.
2) The initial condition of the rest of the circuit changes, if a network element is replaced by a voltage source having an equal current as the voltage across the element at every instant of time.
3) The initial condition of the rest of the circuit remains same, if a network element is replaced by a voltage source having an equal voltage as the voltage across the element at every instant of time.
4) The initial condition of the rest of the circuit changes, if a network element is replaced by a voltage source having an equal voltage as the current across the element at every instant of time.
Correct Answer: The initial condition of the rest of the circuit remains same, if a network element is replaced by a voltage source having an equal voltage as the voltage across the element at every instant of time.

Which of the following theorem states that the sum of instantaneous power in ‘n’ number of branches of an electrical network is zero?

Options:
1) Compensation
2) Maximum power transfer
3) Superposition
4) Tellegen’s
Correct Answer: Tellegen’s

Kirchhoff’s voltage law is based on which of the following principle?

Options:
1) Conservation of charge
2) Conservation of energy
3) Conservation of force
4) Conservation of momentum
Correct Answer: Conservation of energy


Which of the following is a diamagnetic material?

Options:
1) Aluminium
2) Oxygen
3) Lead
4) Nickel
Correct Answer: Lead


Which of the following material shows paramagnetism?

Options:
1) Copper
2) Iron
3) Titanium
4) Silver
Correct Answer: Titanium


Which of the following is the CORRECT expression for Gauss’ Law?

Options:
1)


2)


3)


4)



Correct Answer:

Determine the intensity of magnetization (in A/m) of a magnet, when its pole strength is 100 Wb and has a pole area of 70 sq. m.

Options:
1) 4.98

2) 3.65

3) 2.53

4) 1.43
Correct Answer: 1.43


Hysteresis loss occurring in a material does NOT depend on which of the following parameters?

Options:
1) Hysteresis constant
2) Magnetic flux density
3) Frequency
4) Reluctivity
Correct Answer: Reluctivity


Determine the eddy current loss (in W) in a material having eddy current coefficient of 1, thickness of 0.02 m and a volume of 1 cubic metre, which is kept in a magnetic field of maximum flux density of 2 T and supplied by a frequency of 50 Hz.

Options:
1) 2
2) 3
3) 4
4) 5
Correct Answer: 4


What will be the self-inductance (in mH) of a 4 m long air-core solenoid, if the diameter of the solenoid is 50 cm and has 300 turns?

Options:
1) 5.54

2) 6.94

3) 7.85

4) 8.64
Correct Answer: 5.54


What is the coupling factor between the two coils, each having self inductance of 25 mH and the mutual inductance between the two is 25 mH?

Options:
1) 0.5

2) 0.75

3) 1

4) 2
Correct Answer: 1


Determine the magnitude of the EMF (in V) induced between the axis of rotation and the rim of the disc, when the disc of radius 10 cm rotates with an angular velocity of 10 revolutions per second, which is placed in a magnetic field of 4 T acting parallel to the rotation of the disc.

Options:
1) 0.5
2) 0.75
3) 1
4) 1.25
Correct Answer: 1.25


Determine the peak value (in A) of the current used by a motor rated at 220 V, 30 A.

Options:
1) 21.2

2) 30

3) 42.4

4) 51.9
Correct Answer: 42.4


What will be the frequency (in Hz) of a sinusoidal wave, when the time period is 20 ms?

Options:
1) 50

2) 60

3) 40

4) 30
Correct Answer: 50


QID : 333 -


Options:
1) 9.36

2) 7.87

3) 8.66

4) 4.42
Correct Answer: 8.66


At resonant frequency, the impedance of a series resonant circuit is _______________.

Options:
1) zero
2) maximum
3) infinite
4) minimum
Correct Answer: minimum


Determine the value of the phase angle (in degrees) in a series RC circuit having a resistance of 20 ohms and capacitive reactance of 11.56 ohms when supplied by a frequency of 50 Hz.

Options:
1) 60

2) 30

3) 90

4) 45
Correct Answer: 30


A 3-phase delta connected system is supplied by a line voltage of 200 V. The value of phase current is 30 A. What is the total power consumed (in W) by the system, if the current lags the voltage by 30 degrees?

Options:
1) 16.32

2) 14.45

3) 15.59

4) 16.69
Correct Answer: 15.59




Options:
1) 0.126

2) 1.26

3) 12.6

4) 126.1
Correct Answer: 0.126


Determine the reactive power (in kVAR) of a 3-phase delta connected system having a line voltage of 400 V, line current of 40 A and the phase difference between the voltage and current is 45 degrees.

Options:
1) 14.4

2) 15.8

3) 18.7

4) 19.6
Correct Answer: 19.6


Determine the quality factor of a series RLC circuit, when the value of capacitance is 0.02 mF, the value of inductance is 8 mH and the value of resistance is 40 ohms.

Options:
1) 0.5
2) 0.4
3) 0.8
4) 1.3
Correct Answer: 0.5


What will be the time (in seconds) taken by the inductor reach its maximum steady state value in a series RL circuit, when the value of the inductance is 0.8 H and the value of the resistance is 10 Ohms?

Options:
1) 0.2

2) 0.6

3) 0.4

4) 0.8
Correct Answer: 0.4


Which one of the following is the dimension of energy?

Options:
1)


2)


3)


4)



Correct Answer: